CN114086324A - Controllable electric needling forming device - Google Patents
Controllable electric needling forming device Download PDFInfo
- Publication number
- CN114086324A CN114086324A CN202111345389.XA CN202111345389A CN114086324A CN 114086324 A CN114086324 A CN 114086324A CN 202111345389 A CN202111345389 A CN 202111345389A CN 114086324 A CN114086324 A CN 114086324A
- Authority
- CN
- China
- Prior art keywords
- force arm
- motor
- needling
- needle
- fixing plate
- 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.)
- Granted
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/02—Needling machines with needles
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a controllable electric needling forming device, which comprises a motor driving module and a mechanical transmission module, wherein the motor driving module comprises a motor and a motor driving control module, and the mechanical transmission module comprises a power shaft, a force arm turntable, a fixed shaft, a force arm sleeve groove, a force arm needle rod and a needle rod fixing plate; the motor drive control module is used for controlling the motor to drive the power shaft to rotate; the force arm turntable is concentrically connected with the power shaft, and a fixed shaft is eccentrically fixed on the force arm turntable; the force arm sleeve groove is fixedly connected with the force arm needle rod, and the force arm needle rod passes through the needle rod fixing plate to do linear up-and-down motion; the fixed shaft moves in the force arm sleeve groove. The invention can effectively regulate and control the needling density, avoid the direct influence on the shape and distribution of pores in the composite material, the bending degree of fibers, the matrix infiltration and curing process and the like due to larger needling depth and density difference in the needling process, and realize the effective transmission of the fiber performance to the composite material.
Description
Technical Field
The invention relates to the field of needling forming, in particular to a controllable electric needling forming device.
Background
The C/C composite material has the characteristics of low density, high specific strength, excellent oxidation/ablation resistance, good thermal shock resistance and the like, and is widely applied to the fields of aviation, aerospace and photovoltaic thermal fields. The carbon fiber preform is a reinforcing phase of the C/C composite material, is mainly made of carbon fiber filaments or chopped carbon fibers into a specific shape by weaving, spinning and other methods, and is a framework of the C/C composite material. The needling process of the non-flat carbon fiber preforms such as the boiler sides, the guide cylinder, the heat preservation cylinder and the like used in the photovoltaic thermal field is composed of an automatic needling part and an artificial needling part, the needling density and the needling depth can be set by an automatic needling machine according to the product performance, and the artificial needling is needed in areas such as a layer laying interface, a special-shaped curved surface and the like. In the face of a heavy work task, the labor intensity is high, the work efficiency is low, the needling depth and the needling density of the hand-held pricking needle are different, the shape and the distribution of pores in the composite material, the bending degree of fibers and the infiltration and solidification process of a matrix are directly influenced, and whether the performance of the fibers can be effectively transferred to the composite material is determined.
The carbon fiber preform may be classified into a needle-punched preform (2.5D fabric), a fine-woven piercing preform (3D fabric), a mandrel-woven preform (4D fabric), and the like according to the preparation method. The needling prefabricated body is characterized in that cut carbon cloth and a net tire layer (a thin felt with randomly distributed chopped carbon fibers) are laid in proportion, the laid carbon cloth and the net tire are needled along the thickness direction Z by using a special pricking pin with an inverted pricking hook, the carbon fibers in the net tire are driven to move in the process of pricking the inverted pricking hook, the carbon fibers are separated from the pricking hook and are left in the felt body (close to a vertical state) in the process of rising, and the carbon fibers are introduced in the Z direction, so that the net tire and the carbon cloth are integrated. During the needling process, the Z-direction fibers cannot completely and continuously penetrate through the whole fabric, but two adjacent layers of Z-direction fibers regularly retreat one or more than one carbon cloth thickness layer distance at a time. In the existing manual needling process, the depth and the density of needling operation cannot be well controlled under the influence of subjective and objective factors such as the operation proficiency of workers, the work responsibility, the working time, the physical quality, the needling device and the like, so that the consistency of the Z-direction needling carbon fibers on the sewing of a net layer and carbon cloth cannot be ensured, the strength between a plane and a layer becomes difficult to control, the product quality of a carbon fiber preform is seriously influenced, and the pore shape and the distribution of a composite material, the fiber twisting degree, the matrix infiltration and curing process and the like in the subsequent process treatment are directly influenced.
In the needling process, the pricking pin with the inverted pricking hook needs to complete reciprocating needling operation according to different frequencies, depths, densities and the like according to process requirements, and the power source mainly comprises a plurality of modes such as pneumatic, electric or electromagnetic modes. CN111113700A discloses an electric acupuncture device, which comprises a cylindrical shell, be equipped with the stator barrel in the barrel, be equipped with coil winding in the stator barrel, active cell slidable mounting is in the stator barrel, active cell and needle bar fixed connection, coil winding is along the circumference coiling, be equipped with the permanent magnet on the active cell, the permanent magnet direction of magnetizing is for magnetizing along the axial, the permanent magnet of magnetizing along the axial is built-in at the stator barrel, drive permanent magnet drive needle bar motion after letting in current, and through setting up position inductive switch, change the current direction, and then change the direction that the permanent magnet drove the needle bar motion, realize reciprocal acupuncture motion. However, the device has the advantages that the position induction switches are arranged at the two ends of the needle bar, so that the reciprocating motion amplitude of the needle bar is limited, and the aimed depth is further fixed, the needling depth cannot be effectively regulated, the use range of the device in industrial production is seriously limited, meanwhile, the annular permanent magnets are connected with the needle bar, and the permanent magnets are subjected to long-time severe reciprocating motion, so that the permanent magnets are easy to demagnetize, the complex magnetic field and electric field environment of a factory is also easy to demagnetize, and the reliability of the needling device is influenced. In addition, the electric acupuncture device in the prior art can not realize the adjustment of acupuncture frequency, and the applicability is poor.
Disclosure of Invention
The invention provides a controllable electric needling forming device, which can solve the problem that needling density and needling depth are difficult to adjust in the prior art.
In order to solve the technical problems, the invention provides a controllable electric needling forming device, which comprises a motor driving module and a mechanical transmission module, wherein the motor driving module comprises a motor and a motor driving control module, and the mechanical transmission module comprises a power shaft, a force arm turntable, a fixed shaft, a force arm sleeve groove, a force arm needle rod and a needle rod fixing plate;
the motor drive control module is used for controlling the motor to drive the power shaft to rotate;
the force arm turntable is concentrically connected with the power shaft, and a fixed shaft is eccentrically fixed on the force arm turntable;
the force arm sleeve groove is fixedly connected with the force arm needle rod, and the force arm needle rod passes through the needle rod fixing plate to do linear up-and-down motion;
the fixed shaft moves in the force arm sleeve groove.
The force arm needle rod is connected with the barb pricking needle.
The needle bar fixing plate is fixed on the shell, or the needle bar fixing plate and the shell are integrally formed;
the shell is used for fixing the motor driving module.
The needle bar fixing plate or the shell is movably connected with a vertical lifting guide rod, a silk pressing net is arranged at the bottom of the vertical lifting guide rod, and a through hole is formed in the silk pressing net, so that the barb pricking needle penetrates through the through hole.
The vertical lifting guide rod is fixed on the needle rod fixing plate through a vertical control knob.
The motor driving control module is used for setting a motor working mode, and the motor working mode is set by controlling the running frequency of the motor or the running time interval of the motor.
And the motor drive control module is provided with a motor drive control gear for setting a motor working mode.
The controllable electric acupuncture forming device further comprises a power supply control module, the power supply control module comprises a storage battery, a charging port and a power switch, and the storage battery is arranged in the shell.
The shell is provided with a handle, and the power switch is arranged on the handle.
The controllable electric needling forming device is used for needling forming of the carbon fiber preform.
The invention has the beneficial effects that: the invention can effectively regulate and control the needling density and the needling depth, avoid the direct influence on the shape and distribution of pores in the composite material, the bending degree of fibers, the matrix infiltration and curing process and the like due to larger density difference of the needling depth in the needling process, ensure the consistency of the needled carbon fiber preform products and realize the effective transmission of the fiber performance to the composite material.
Drawings
FIG. 1 is an isometric view of the overall structure of a controllable electric needling forming apparatus in an embodiment;
FIG. 2 is a front sectional view of the controllable electric needling forming apparatus in an embodiment;
FIG. 3 is a side sectional view of the controllable electric needling forming apparatus in an embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present embodiment provides a controllable electric needling forming apparatus, including a motor driving control module 5 and a mechanical transmission module, where the motor driving control module 5 includes a motor 4 and the motor driving control module 5, and the mechanical transmission module includes a power shaft 7, a force arm turntable 8, a fixed shaft 9, a force arm sleeve groove 10, a force arm needle bar 11, and a needle bar fixing plate 12. The motor drive control module 5 is used for controlling the motor 4 to drive the power shaft 7 to rotate.
In this embodiment, the moment arm turntable 8 is concentrically connected with the power shaft 7, and a fixed shaft 9 is eccentrically fixed on the moment arm turntable 8; the force arm sleeve groove 10 is fixedly connected with a force arm needle rod 11, and the force arm needle rod 11 passes through a needle rod fixing plate 12 to do linear up-and-down motion; the fixed shaft 9 moves in the force arm sleeve groove 10.
In this embodiment, the mechanical transmission device mainly functions to convert the rotational motion of the motor 4 into the reciprocating linear motion of the needling operation, thereby providing a direct power source for the needling operation. Mainly comprises a power shaft 7, a force arm turntable 8, a fixed shaft 9, a force arm sleeve groove 10, a force arm needle rod 11, a needle rod fixing plate 12 and the like. The power shaft 7 is connected with the motor 4 and outputs the rotating power of the motor 4 to the outside. The force arm turntable 8 is concentrically connected with the power shaft 7, and the power shaft 7 drives the power arm turntable 8 to rotate. A fixed shaft 9 is fixed on the periphery of the force arm turntable 8, and the fixed shaft 9 does 'circle drawing' rotary motion along with the turntable. The force arm sleeve groove 10 is of a cuboid-like shape with a hollow interior and is vertically connected with the force arm needle rod 11. The arm force needle rod 11 penetrates through the needle rod fixing plate 12, and the arm force sleeve groove 10 connected with the needle rod fixing plate 12 is controlled to keep a certain distance with the turntable through the needle rod fixing plate 12, so that the arm force sleeve groove 10 is prevented from contacting and rubbing with the turntable to influence mechanical transmission. The length of the force arm sleeve groove 10 is approximately equal to the diameter of the rotary table, the width of the force arm sleeve groove is slightly larger than the diameter of the fixing shaft 9, and the fixing shaft 9 is arranged in the force arm sleeve groove 10. When the fixed shaft 9 rotates along with the turntable to draw a circle, the fixed shaft 9 moves up and down in the force arm sleeve groove 10 from the perspective of the forward turntable, the force arm sleeve groove 10 is driven by the fixed shaft 9 to linearly reciprocate back and forth, the force arm needle rod 11 connected with the force arm sleeve groove 10 also linearly reciprocates along with the force arm sleeve groove, and the barb pricking needle 13 is connected with the needle rod to perform a pricking operation.
In this embodiment, the moment arm needle bar 11 is connected with the barb puncture needle 13, and the barb puncture needle 13 mainly functions to perform and complete the puncture operation.
In this embodiment, the needle bar fixing plate 12 is fixed to the housing, and as another embodiment, the needle bar fixing plate 12 is integrally formed with the housing.
In this embodiment, the housing is used to fix the motor drive control module 5.
In a preferred embodiment, a vertical lifting guide rod 15 is movably connected to the needle bar fixing plate 12 or the housing, a wire pressing net 16 is arranged at the bottom of the vertical lifting guide rod 15, and a through hole is formed in the wire pressing net 16 so that the barbed needle 13 can pass through the through hole. The vertical lifting guide rod 15 is fixed on the needle bar fixing plate 12 through a vertical control knob 14. The pressure-adjustable silk screen 16 is arranged at the bottom of the device, the vertical control knob 14 is adjusted, the vertical lifting guide rod 15 is controlled, the change of the relative distance between the pressure silk screen 16 and the felting needles is completed, the arrangement layout of the through holes on the pressure silk screen 16 corresponds to or covers the arrangement layout of the felting needles, and the felting needles perform reciprocating needling operation through the through holes on the pressure silk screen 16, so that the phenomenon that the felting needles carry excessively long carbon fibers to influence the needling operation is prevented.
In this embodiment, the vertical control thread pressing device mainly functions to control the needling depth and perform thread pressing control on the resetting process of the barb pricking pin 13, so as to prevent the barb pricking pin 13 from being excessively long carbon fibers, which affects the needling operation. Mainly comprises a vertical control knob 14, a vertical lifting guide rod 15, a wire pressing net 16 and the like. The vertical control knobs 14 are arranged on two sides of the needle bar fixing plate 12, and the vertical lifting guide rods 15 can be controlled to move up and down by rotating the knobs at different angles. The screen pressing mesh 16 is provided with through holes, the arrangement of the through holes corresponds to or covers the arrangement of the felting needles, and the felting needles perform reciprocating needling operation through the through holes on the screen pressing mesh 16. The vertical lifting guide rod 15 is fixedly connected with the wire pressing net 16 downwards and is connected with the needle bar fixing plate 12 in a perforation way upwards, the fixing and the moving of the connection of the vertical lifting guide rod 15 and the needle bar fixing plate 12 in the perforation way can be controlled by rotating the vertical control knob 14 on the side surface of the needle bar fixing plate 12, so that the vertical distance of the whole vertical control wire pressing device is adjusted, the relative position between the needle and the wire pressing net 16 is changed, and the effective control of the needling depth is further completed.
In a preferred embodiment, the motor driving control module 5 is configured to set an operation mode of the motor 4, and the operation mode of the motor 4 is set by controlling an operation frequency of the motor 4 or an operation time interval of the motor 4. And a motor drive control gear 6 for setting the working mode of the motor 4 is arranged on the motor drive control module 5.
In this embodiment, the motor driving control module 5 is used for providing controllable mechanical power for the device, so as to effectively control the needling density. The device mainly comprises a motor 4, a motor drive control module 5, a motor drive control gear 6 and the like. The motor drive control module 5 is provided with a plurality of working modes of the motor 4, can control the running frequency of the motor 4, the running time interval of the motor 4 and the like, and realizes the controllable operation of the motor 4 with fixed time and fixed frequency, thereby finishing the effective control of the subsequent needling density. Before switch 3 opens, set up 4 mode of motor through motor drive control gear 6, after switch 3 opened the circular telegram, motor 4 can operate according to the mode that sets up, through follow-up mechanical transmission, its regularly decide the controllable operation of frequent and then turn into the controllable reciprocal acupuncture operation of frequency, effectively regulates and control acupuncture density.
As a preferred embodiment, the controllable electric acupuncture forming device further comprises a power supply control module, the power supply control module comprises a storage battery 2, a charging port 1 and a power switch 3, and the storage battery 2 is arranged in the shell. The power control module is mainly used for providing power support for the equipment. The charging port 1 converts external power into power stored in the battery 2, and provides energy support for the operation of the motor 4 through the power control switch.
In this embodiment, the housing is provided with a handle, and the power switch 3 is disposed on the handle.
In this embodiment, the controllable electric needling forming device is used for needling forming of the carbon fiber preform.
In the embodiment, a controllable electric driving mode is adopted, the barb pricking pin 13 completes the needling operation by converting the rotation of the motor 4 into the mechanical linear reciprocating motion, compared with the traditional manual needling, the labor intensity of workers can be greatly reduced, and the working efficiency is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A controllable electric acupuncture forming device is characterized by comprising a motor driving module and a mechanical transmission module, wherein the motor driving module comprises a motor and a motor driving control module, and the mechanical transmission module comprises a power shaft, a force arm turntable, a fixed shaft, a force arm sleeve groove, a force arm needle rod and a needle rod fixing plate;
the motor drive control module is used for controlling the motor to drive the power shaft to rotate;
the force arm turntable is concentrically connected with the power shaft, and a fixed shaft is eccentrically fixed on the force arm turntable;
the force arm sleeve groove is fixedly connected with the force arm needle rod, and the force arm needle rod passes through the needle rod fixing plate to do linear up-and-down motion;
the fixed shaft moves in the force arm sleeve groove.
2. The controllable electric needle-punching molding device according to claim 1, characterized in that the lever arm needle bar is connected with a barb needle.
3. A controllable electric acupuncture forming apparatus according to claim 1, wherein the needle bar fixing plate is fixed to the housing, or the needle bar fixing plate is integrally formed with the housing;
the shell is used for fixing the motor driving module.
4. The controllable electric needling forming device according to claim 3, wherein a vertical lifting guide rod is movably connected to the needle rod fixing plate or the housing, a screen pressing mesh is arranged at the bottom of the vertical lifting guide rod, and a through hole is arranged on the screen pressing mesh so that the barbed needles can pass through the through hole.
5. A controlled electric needle-punching apparatus as claimed in claim 4, wherein said vertical lifting guide bar is fixed to the needle bar fixing plate by a vertical control knob.
6. The device of claim 1, wherein the motor drive control module is configured to set a motor operating mode, and the motor operating mode is set by controlling an operating frequency or an operating time interval of the motor.
7. The controllable electric needling forming device according to claim 1, wherein the motor drive control module is provided with a motor drive control gear for setting a motor working mode.
8. A controlled powered lancing forming device according to claim 1, further comprising a power control module including a reservoir battery, a charging port and a power switch, the reservoir battery being disposed within the housing.
9. A controlled power acupuncture forming device as claimed in claim 8, characterized in that a handle is provided on the housing, and the power switch is provided on the handle.
10. The controllable electric needling forming device according to claim 1, wherein the controllable electric needling forming device is used for needling forming of carbon fiber preforms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345389.XA CN114086324B (en) | 2021-11-12 | 2021-11-12 | Controllable electric needling forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111345389.XA CN114086324B (en) | 2021-11-12 | 2021-11-12 | Controllable electric needling forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114086324A true CN114086324A (en) | 2022-02-25 |
| CN114086324B CN114086324B (en) | 2022-12-02 |
Family
ID=80300600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111345389.XA Active CN114086324B (en) | 2021-11-12 | 2021-11-12 | Controllable electric needling forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114086324B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6360412B1 (en) * | 2001-06-05 | 2002-03-26 | Messier-Bugatti | Method of monitoring the needling of fiber structures in real time, and needling apparatus for implementing the method |
| US20020133923A1 (en) * | 2001-02-26 | 2002-09-26 | Messier-Bugatti | Method and installation for advancing a needled fiber plate |
| CN102505340A (en) * | 2011-10-14 | 2012-06-20 | 大连隆田科技有限公司 | Method and device for preparing pre-oxidation fiber thick felt |
| CN103938369A (en) * | 2014-04-11 | 2014-07-23 | 吴江龙升纺织有限公司 | Fiber web reinforcing device |
| CN105386241A (en) * | 2015-11-16 | 2016-03-09 | 天鼎丰非织造布有限公司 | Needle machine and control method thereof |
| CN105755679A (en) * | 2016-04-25 | 2016-07-13 | 天津工大航泰复合材料有限公司 | Portable pneumatic needle gun |
| CN108103671A (en) * | 2018-02-01 | 2018-06-01 | 天津工业大学 | A kind of robot acupuncture apparatus based on servo pin tartar's unit |
| CN108668533A (en) * | 2018-05-14 | 2018-10-19 | 王兴民 | A kind of adjustable lawn perforating device of stroke |
| CN109881374A (en) * | 2019-02-25 | 2019-06-14 | 天津工业大学 | A kind of needing machine device people's workbench with force feedback |
| CN209178606U (en) * | 2018-10-24 | 2019-07-30 | 卢贞珍 | A kind of efficient needing machine of textile machinery |
| CN212838274U (en) * | 2020-07-02 | 2021-03-30 | 成都麦斯威能源技术有限公司 | Piston type oil exploitation pump |
| CN213035106U (en) * | 2020-06-30 | 2021-04-23 | 武汉东湖学院 | Plastic processing burring device |
| CN113529285A (en) * | 2021-08-31 | 2021-10-22 | 广东三辉无纺机械有限公司 | Supporting and net stripping device of needling machine |
-
2021
- 2021-11-12 CN CN202111345389.XA patent/CN114086324B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020133923A1 (en) * | 2001-02-26 | 2002-09-26 | Messier-Bugatti | Method and installation for advancing a needled fiber plate |
| US6360412B1 (en) * | 2001-06-05 | 2002-03-26 | Messier-Bugatti | Method of monitoring the needling of fiber structures in real time, and needling apparatus for implementing the method |
| CN102505340A (en) * | 2011-10-14 | 2012-06-20 | 大连隆田科技有限公司 | Method and device for preparing pre-oxidation fiber thick felt |
| CN103938369A (en) * | 2014-04-11 | 2014-07-23 | 吴江龙升纺织有限公司 | Fiber web reinforcing device |
| CN105386241A (en) * | 2015-11-16 | 2016-03-09 | 天鼎丰非织造布有限公司 | Needle machine and control method thereof |
| CN105755679A (en) * | 2016-04-25 | 2016-07-13 | 天津工大航泰复合材料有限公司 | Portable pneumatic needle gun |
| CN108103671A (en) * | 2018-02-01 | 2018-06-01 | 天津工业大学 | A kind of robot acupuncture apparatus based on servo pin tartar's unit |
| CN108668533A (en) * | 2018-05-14 | 2018-10-19 | 王兴民 | A kind of adjustable lawn perforating device of stroke |
| CN209178606U (en) * | 2018-10-24 | 2019-07-30 | 卢贞珍 | A kind of efficient needing machine of textile machinery |
| CN109881374A (en) * | 2019-02-25 | 2019-06-14 | 天津工业大学 | A kind of needing machine device people's workbench with force feedback |
| CN213035106U (en) * | 2020-06-30 | 2021-04-23 | 武汉东湖学院 | Plastic processing burring device |
| CN212838274U (en) * | 2020-07-02 | 2021-03-30 | 成都麦斯威能源技术有限公司 | Piston type oil exploitation pump |
| CN113529285A (en) * | 2021-08-31 | 2021-10-22 | 广东三辉无纺机械有限公司 | Supporting and net stripping device of needling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114086324B (en) | 2022-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4955123A (en) | Production of a shaped filamentary structure | |
| RU2169805C2 (en) | Methods and apparatus for manufacture of annular members from composite materials and preforms for these members | |
| CN109795180A (en) | A kind of weaving method of the carbon fiber precast body of automobile brake disc | |
| US5323523A (en) | Production of shaped filamentary structures | |
| CA2090600A1 (en) | Production of shaped filamentary structures | |
| CN114086324B (en) | Controllable electric needling forming device | |
| CN105420933A (en) | Multilayer carbon cloth stitching device | |
| US5882781A (en) | Shaped fibrous fabric structure comprising multiple layers of fibrous material | |
| CN211619607U (en) | Winding machine for spinning yarns | |
| CN105722667B (en) | Repeat unit, spininess machine and method for manufacturing the material strengthened | |
| CN217947097U (en) | Quick roll changing device of non-woven fabric winding machine | |
| CN217046551U (en) | High-power frequency modulation vibration cutting device | |
| CN216688586U (en) | Robot-mounted carbon fiber sewing device | |
| CN213971491U (en) | Non-woven fabrics punches and uses cloth positioner | |
| US5737821A (en) | Production of shaped filamentary structures | |
| CN214168333U (en) | Forming tool for arc surface of special-shaped needling preform | |
| CN209243324U (en) | A kind of dedicated needing machine of missile case | |
| CN210711989U (en) | Rotary preform needling forming auxiliary supporting device for coreless die supporting | |
| CN209114161U (en) | A kind of anti-oxidant infiltration of silver fiber fabric, which is fixedly mounted with, to be set | |
| CN215289189U (en) | Needling device for producing aluminum silicate fibers | |
| CN109281052B (en) | Three-dimensional structure stitch forming equipment and stitch forming method | |
| CN102330274A (en) | Computerized flat knitting machine motor control system | |
| CN113026239A (en) | Bionic carpet machine gun head group | |
| CN114657694B (en) | Three-dimensional braiding device and method for composite material | |
| CN217869397U (en) | Carbon fiber preform needling machine structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |