CN209906990U - Device for adjusting weaving angle of three-dimensional woven circular fabric - Google Patents
Device for adjusting weaving angle of three-dimensional woven circular fabric Download PDFInfo
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- CN209906990U CN209906990U CN201920625564.2U CN201920625564U CN209906990U CN 209906990 U CN209906990 U CN 209906990U CN 201920625564 U CN201920625564 U CN 201920625564U CN 209906990 U CN209906990 U CN 209906990U
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Abstract
The utility model discloses an adjust three-dimensional device of weaving circular fabric and weave angle, its characterized in that: the device comprises a support (3) and a lifting mechanism (4) capable of lifting the support (3), wherein the support (3) is arranged in the direction to be woven of the woven preform (1), and the diameter of the circular fabric can be changed by the support (3). The utility model discloses an elevating system drives the appropriate motion of support to weave the circular fabric of different diameters, the position that the diameter is little then elevating system drives the support and rises, the big local then elevating system of diameter drives the support and descends, adjusts the size of weaving the angle according to the diameter that the circular fabric was woven to the three-dimensional promptly, with the structural stability of control prefab, can improve the structure and the performance of circular fabric.
Description
Technical Field
The utility model belongs to the technical field of the angle technique of weaving of fabric and specifically relates to an adjust three-dimensional device of weaving circular fabric and weaving angle.
Background
The three-dimensional knitted circular fabric is a novel circular net-shaped fabric and is generated with the appearance of a three-dimensional integral knitting high-new textile technology at the end of the 20 th century. Compared with the traditional warp-weft interweaved two-dimensional weaving, the three-dimensional weaving circular fabric technology directly weaves fiber bundles into a required circular shape through the change of the trend of a yarn carrier to form a prefabricated member, and then uses the prefabricated member as a reinforcing framework and adopts resin and other composite textiles to be dipped and cured to form a circular composite material, such as a rocket nozzle. The three-dimensional woven circular fabric has huge application prospects in the aspects of aerospace, military, medical treatment, transportation and the like due to the excellent structure and performance.
The weaving angle is one of the important parameters of the three-dimensional woven composite preform, and the weaving angle theta refers to the included angle formed by yarns or fiber bundles on the surface of the three-dimensional fabric and the axial direction of the fabric, as shown in fig. 1. For the uniform prefabricated part, the weaving angle is smaller at the position with large diameter; the braiding angle is larger where the diameter is small, as shown in fig. 2. Experiments show that the influence of the weaving angle of the material on the compression mechanical property of the material is large, the compression failure mechanism of the woven composite material is changed along with the change of the weaving angle, and the smaller the weaving angle is, the higher the longitudinal tensile and compression properties are, and the lower the shearing property is. The material with small weaving angle has better creep resistance; as the braid angle increases, the tensile, flexural strength and modulus of the composite decrease. However, in the current technology, weaving circular fabrics is divided into two modes of manual and machine, and preforms with different weaving angles are woven by changing the curling speed and the ring speed, the weaving speed is slow, and the weaving angle is difficult to control.
Disclosure of Invention
The utility model aims at the problem that prior art exists, a adjust three-dimensional device of weaving circular fabric and weave angle is provided, the device weaves the in-process at the circular fabric prefab, carries out effective control to the angle of weaving of different diameters departments to reach the stable purpose of circular fabric prefab mechanism.
The utility model aims at solving through the following technical scheme:
a device for adjusting weaving angles of three-dimensional weaving circular fabrics is characterized in that: the device comprises a support and a lifting mechanism capable of lifting the support, wherein the support is arranged in the direction to be woven of the woven preform, and the diameter of the circular fabric can be changed by the support.
The support is an inverted cone.
The top of the lifting mechanism is arranged at the cone angle of the bracket, and the yarns or fiber bundles are scattered on the periphery side of the cone bottom of the bracket, so that the supporting diameter of the yarns or fiber bundles is changed by changing the position of the cone bottom of the bracket.
The lifting mechanism is driven by a driving device.
The driving device adopts a servo motor.
Compared with the prior art, the utility model has the following advantages:
the utility model drives the support to move properly through the lifting mechanism to weave the circular fabrics with different diameters, the lifting mechanism drives the support to ascend at the position with small diameter, and drives the support to descend at the position with large diameter, namely, the size of a weaving angle is adjusted according to the diameter of the three-dimensional weaving circular fabric to control the structural stability of the prefabricated part and improve the structure and the performance of the circular fabrics; in addition, the servo motor is adopted to drive the lifting mechanism, so that the stability and the precision of control are improved.
Drawings
FIG. 1 is a schematic illustration of a braid angle;
FIG. 2 is a view showing the sizes of braiding angles of different diameters;
fig. 3 is a schematic view of the usage state of the device for adjusting the knitting angle of the three-dimensional knitted circular fabric according to the present invention.
Wherein: 1-woven preform; 2-yarns or fiber bundles; 3, a bracket; 4, a lifting mechanism; 5-driving the device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 3: a device for adjusting the weaving angle of a three-dimensional woven circular fabric comprises a support 3 and a lifting mechanism 4 capable of lifting the support 3, wherein the support 3 is arranged in the direction to be woven of a woven preform 1, and the support 3 can change the diameter of the circular fabric. The above-mentioned support 3 is an inverted cone, the top of the lifting mechanism 4 is arranged at the cone angle of the support 3, and the yarn or fiber bundle 2 is draped on the circumference side of the cone bottom of the support 3, and the support diameter of the yarn or fiber bundle 2 is changed by changing the position of the cone bottom of the support 3. On this basis, the lifting mechanism 4 is driven by a driving device 5, and the driving device 5 is a servo motor.
The utility model discloses an adjust three-dimensional circular fabric of weaving and weave device of angle when using, it is to notice: since the diameter change of the circular fabric is a gradual change process, the lifting mechanism 4 is also a slow change process.
The utility model discloses a lifting mechanism 4 drives support 3 and suitably moves to weave the circular fabric of different diameters, and lifting mechanism 4 drives support 3 to rise when the diameter is small, and lifting mechanism 4 drives support 3 to descend when the diameter is large, namely the size of weaving angle is adjusted according to the diameter of three-dimensional weaving circular fabric, so as to control the structural stability of prefab, can improve the structure and performance of circular fabric; in addition, the servo motor is adopted to drive the lifting mechanism 4, so that the stability and the precision of control are improved.
The above embodiments are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical scheme according to the technical idea provided by the present invention all fall within the protection scope of the present invention; the technology not related to the utility model can be realized by the prior art.
Claims (5)
1. A device for adjusting weaving angles of three-dimensional weaving circular fabrics is characterized in that: the device comprises a support (3) and a lifting mechanism (4) capable of lifting the support (3), wherein the support (3) is arranged in the direction to be woven of the woven preform (1), and the diameter of the circular fabric can be changed by the support (3).
2. The apparatus for adjusting a weaving angle of a three-dimensional woven circular fabric according to claim 1, wherein: the support (3) is an inverted cone.
3. The apparatus for adjusting a weaving angle of a three-dimensional woven circular fabric according to claim 2, wherein: the top of the lifting mechanism (4) is arranged at the cone angle of the bracket (3), and the yarn or the fiber bundle (2) is scattered at the periphery side of the cone bottom of the bracket (3), and the supporting diameter of the yarn or the fiber bundle (2) is changed by changing the position of the cone bottom of the bracket (3).
4. The apparatus for adjusting a weaving angle of a three-dimensional woven circular fabric according to any one of claims 1 to 3, wherein: the lifting mechanism (4) is driven by a driving device (5).
5. The apparatus for adjusting a weaving angle of a three-dimensional woven circular fabric according to claim 4, wherein: the driving device (5) adopts a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625564.2U CN209906990U (en) | 2019-05-05 | 2019-05-05 | Device for adjusting weaving angle of three-dimensional woven circular fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920625564.2U CN209906990U (en) | 2019-05-05 | 2019-05-05 | Device for adjusting weaving angle of three-dimensional woven circular fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209906990U true CN209906990U (en) | 2020-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920625564.2U Active CN209906990U (en) | 2019-05-05 | 2019-05-05 | Device for adjusting weaving angle of three-dimensional woven circular fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209906990U (en) |
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2019
- 2019-05-05 CN CN201920625564.2U patent/CN209906990U/en active Active
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