CN211763509U

CN211763509U - Fiber bundle

Info

Publication number: CN211763509U
Application number: CN201922406497.8U
Authority: CN
Inventors: 宋鲁光; 卞正宁; 王海; 杨妍; 邹炀; 郜洁; 张玉才; 高逸群; 邵琰皓; 石哲涵
Original assignee: Changzhou Institute of Technology
Current assignee: Changzhou Institute of Technology
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-27
Anticipated expiration: 2029-12-27

Abstract

The utility model provides a fiber bundle, which relates to the technical field of 3D printing, and comprises a non-magnetic fiber, at least one magnetic fiber and a connecting device; the connecting device comprises a fixing part and a limiting part which are fixedly connected, wherein the non-magnetic fiber is fixedly connected with the fixing part, and the magnetic fiber is rotatably connected with the limiting part. The utility model provides a tow utilizes applied electric field or magnetic field to come to adjust magnetic fiber's distribution direction for the fibre in the tow is non-one-dimensional state and distributes, thereby all distributable has extending direction and the unanimous fibre of this direction in all directions in the 3D printing material that can make the preparation, thereby can improve the performance uniformity of 3D printing material in all directions, and the performance of solving 3D printing material has anisotropic problem.

Description

Fiber bundle

Technical Field

The utility model relates to a 3D prints technical field, particularly, relates to a tow.

Background

3D printing technology is a revolutionary technology that changes the ecology of the manufacturing industry. Compared with the traditional manufacturing technology, the 3D printing technology shortens the design period of products, improves the production efficiency, does not need to manufacture a mold, and reduces the production cost. At present, the existing 3D printing technology is still in the preliminary research stage, has a plurality of bottlenecks, and needs to be deeply researched in many aspects.

The 3D printing technology is applied to the field of composite materials, and the manufactured composite material product has light weight and high strength, but still has certain problems, for example, because the 3D printing technology is manufactured in a normal-temperature or high-temperature beam-shaped material mode in an additive mode, the bonding strength between the printed beam-shaped materials is lower than the strength of the printed beam-shaped materials, and the anisotropy of the performance of the 3D printing material is brought; therefore, the bonding strength between the strand materials becomes a weak point that affects the performance of the 3D printing material.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be less than its self intensity because of the adhesive strength between the bundle form material, lead to the anisotropy of 3D printing material performance.

In order to solve the above problems, the present invention provides a fiber bundle, which comprises a non-magnetic fiber, at least one magnetic fiber and a connecting device;

the connecting device comprises a fixing part and a limiting part which are fixedly connected, wherein the non-magnetic fiber is fixedly connected with the fixing part, and the magnetic fiber is rotatably connected with the limiting part.

Optionally, the non-magnetic fibers are polyethylene fibers or glass fibers.

Optionally, the magnetic fibers are magnetized steel fibers or magnetized carbon fibers.

Optionally, a fixing groove is arranged on the fixing part; the fixing groove is suitable for being matched with the non-magnetic fibers so as to fix the non-magnetic fibers.

Optionally, the position-limiting portion includes a first position-limiting groove, and the magnetic fiber rotates along a first plane in the first position-limiting groove.

Optionally, the first limiting groove includes a first limiting hole and a second limiting hole that are communicated with each other, the first limiting hole and the second limiting hole are distributed along the first plane, a distribution direction of the first limiting hole is the same as a distribution direction of the fixing groove, and the second limiting hole is perpendicular to the distribution direction of the first limiting hole.

Optionally, the position-limiting part further includes a second position-limiting groove, and the magnetic fiber rotates along a second plane in the second position-limiting groove; the second plane is perpendicular to the first plane.

Optionally, the second limiting groove includes a third limiting hole and a fourth limiting hole that are communicated with each other, the third limiting hole and the fourth limiting hole are distributed along the second plane, a distribution direction of the third limiting hole is the same as a distribution direction of the fixing groove, and the fourth limiting hole is perpendicular to the distribution direction of the third limiting hole.

Compared with the prior art, the utility model provides a tow has following advantage:

the utility model provides a fiber bundle, through the fibre that sets up two kinds of categories of non-magnetic fiber and magnetic fiber, and set up and fix and spacing connecting device to two kinds of fibres respectively, the distribution direction that utilizes applied electric field or magnetic field to come the magnetic fiber adjusts, make the fibre in the fiber bundle be non-one-dimensional state distribution, thereby all the direction in the 3D printing material that can make the preparation go up the equal distribution of accessible extension direction and this direction fibre, thereby can improve the performance uniformity of 3D printing material on all directions, the performance of solving 3D printing material has anisotropic problem.

Drawings

Fig. 1 is a schematic view of a fiber bundle structure in a one-dimensional state according to the present invention;

fig. 2 is a schematic view of a two-dimensional fiber bundle structure according to the present invention;

fig. 3 is a schematic view of a connecting device according to the present invention;

fig. 4 is a schematic structural diagram of a connecting device according to the present invention;

fig. 5 is a schematic view of a one-dimensional fiber bundle structure of the present invention;

fig. 6 is a schematic view of a three-dimensional fiber bundle structure according to the present invention.

Description of reference numerals:

1-non-magnetic fibers; 2-magnetic fibers; 3-a connecting means; 31-a stationary part; 311-fixed slots; 32-a limiting part; 321-a first limit groove; 3211-a first limit hole; 3212-a second limit hole; 322-a second limit groove; 3221-a third position-limiting hole; 3222-fourth limiting hole.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In order to solve the problem that the performance of the current 3D printing material has anisotropy, the utility model provides a fiber bundle, as shown in fig. 1, which comprises a non-magnetic fiber 1, at least one magnetic fiber 2 and a connecting device 3; the connecting device 3 comprises a fixed part 31 and a limiting part 32 which are fixedly connected, wherein the non-magnetic fiber 1 is fixedly connected with the fixed part 31, and the magnetic fiber 2 is rotatably connected with the limiting part 32; the nonmagnetic fiber 1 and the magnetic fiber 2 are connected by the fixing portion 31 and the stopper portion 32 which are fixedly connected.

Because the magnetic fiber 2 has magnetism, and the magnetic fiber 2 is connected with the limiting part 32 in a rotating way, under the action of a magnetic field or an electric field, the magnetic fiber 2 can rotate in the limiting part 32.

When the fiber bundle is conveyed out of the 3D printing device, referring to fig. 1, the non-magnetic fiber 1 is located in the fixing portion 31, the magnetic fiber 2 is located in the limiting portion 32, and the extending direction of the non-magnetic fiber 1 is the same as that of the magnetic fiber 2, that is, the extending direction of the magnetic fiber 2 is the same as that of the non-magnetic fiber 1; an electric field or a magnetic field is applied to the fiber bundle, and the magnetic fiber 2 rotates under the excitation of the electric field or the magnetic field due to the magnetism of the magnetic fiber 2, so that the extending direction of the magnetic fiber 2 can be adjusted by adjusting the direction of the electric field or the magnetic field; meanwhile, because the non-magnetic fibers 1 have no magnetism, when an electric field or a magnetic field is applied, the direction of the non-magnetic fibers 1 is unchanged, so that the extending directions of the magnetic fibers 2 and the non-magnetic fibers 1 are not the same, and the fiber bundle is converted from a one-dimensional state to a non-one-dimensional state.

After the fiber bundle is converted from the one-dimensional state to the non-one-dimensional state, the extending directions of the fibers in the fiber bundle are not the same, so that the distribution direction of the fibers in the 3D printing material is not the single direction, namely, the fibers with the extending directions consistent with the direction can be distributed in all the directions in the prepared 3D printing material, the consistency of the performance of the 3D printing material in all the directions can be improved, and the problem that the performance of the 3D printing material is anisotropic is solved.

The number of the magnetic fibers 2 is at least one, and the specific number can be set according to the specific performance of the 3D printing material and the user requirement.

When the number of the magnetic fibers 2 is one, as shown in fig. 2, after being excited by an electric field or a magnetic field, the fiber bundle becomes one non-magnetic fiber 1 and one magnetic fiber 2 having different extending directions, that is, the fiber bundle becomes a two-dimensional state.

Similarly, when the number of the magnetic fibers 2 is two or more than two, the direction of the electric field or the magnetic field is adjusted to make different magnetic fibers 2 have different extending directions, so that the fibers in the fiber bundle are distributed in a three-dimensional structure, that is, the fiber bundle is in a three-dimensional state.

The utility model provides a tow, through setting up the fibre of two kinds of non-magnetic fiber 1 and magnetic fiber 2, and the setting is fixed and spacing connecting device 3 to two kinds of fibre respectively, the distribution direction that utilizes applied electric field or magnetic field to come magnetic fiber 2 is adjusted, make the fibre in the tow be non-one-dimensional state distribution, thereby all the distribution has the fibre of extending direction and this direction unanimity on all directions in the 3D printing material that can make the preparation, thereby can improve the performance of 3D printing material in all directions uniformity, the performance of solving 3D printing material has anisotropic problem.

Specifically, the material of the nonmagnetic fiber 1 and the magnetic fiber 2 in the present application is determined according to specific requirements, and in the present application, the nonmagnetic fiber 1 is preferably a polyethylene fiber or a glass fiber, and the magnetic fiber 2 is preferably a magnetized steel fiber or a magnetized carbon fiber.

The material of the connecting device 3 can be determined according to specific requirements, and the material of the connecting device 3 is preferably the same as that of the nonmagnetic fiber 1; in order to reduce the use difficulty of the fiber bundle, the connecting device 3 is not taken out any more after the distribution direction of the magnetic fibers 2 is adjusted in the use process of the fiber bundle; the reserved connecting device 3 continues to limit the fiber bundle on one hand to ensure that the fibers in the 3D printing material are distributed in a non-one-dimensional state, and on the other hand, the reserved connecting device 3 is favorable for improving the mechanical property of the 3D printing material; the material of connecting device 3 is the same with non-magnetic fiber 1, when improving 3D through connecting device 3 and printing material mechanical properties, can also avoid causing the influence to 3D because of introducing other materials and printing the performance of material.

In order to facilitate the fixing of the non-magnetic fiber 1 by the connecting device 3, referring to fig. 3, the fixing portion 31 of the connecting device 3 is provided with a fixing groove 311; the fixing groove 311 is adapted to cooperate with the non-magnetic fiber 1 to fix the non-magnetic fiber 1.

The connecting device 3 in the application is of a solid geometric structure, and the specific structural form can be set according to the printing requirement; the fixing slot 311 is a through hole structure penetrating through the fixing portion 31, and the shape and size of the through hole are determined by the shape and size of the non-magnetic fiber 1; the nonmagnetic fiber 1 is fixed by being mounted in the fixing groove 311 of the through-hole structure.

The fixing groove 311 fixes the non-magnetic fiber 1, and thus the structure is simple and the operation is easy.

In order to facilitate the limitation of the magnetic fiber 2 by the limiting part 32, referring to fig. 3, the limiting part 32 of the connecting device 3 includes a first limiting groove 321, and the magnetic fiber 2 rotates along a first plane in the first limiting groove 321.

Specifically, the first plane in the present application refers to any plane where the nonmagnetic fibers 1 are located, and the plane may be in a horizontal direction, a vertical direction, or any inclined direction.

When the fiber bundle is in an initial state, the magnetic fibers 2 keep the same with the non-magnetic fibers 1 in the distribution direction; after an electric field or a magnetic field is applied, the magnetic fibers 2 rotate in the first limiting groove 321 along the first plane, so that the distribution directions of the magnetic fibers 2 and the non-magnetic fibers 1 are different, the fiber bundle is changed from a one-dimensional state to a two-dimensional state, and the isotropy of the performance of the 3D printing material is improved.

Wherein the angle of the magnetic fiber 2 rotating along the first plane can be any angle within the range of 0-180 degrees, and in order to improve the uniformity of the fiber distribution direction in the fiber bundle and further improve the isotropy of the performance of the 3D printing material, the angle of the magnetic fiber 2 rotating in the first plane is preferably 90 degrees.

Specifically, in the present application, the first limiting groove 321 includes a first limiting hole 3211 and a second limiting hole 3212 that are mutually communicated, the first limiting hole 3211 and the second limiting hole 3212 are both distributed along a first plane, a distribution direction of the first limiting hole 3211 is the same as a distribution direction of the fixing groove 311, and a distribution direction of the second limiting hole 3212 is perpendicular to a distribution direction of the first limiting hole 3211.

In an initial state, the magnetic fibers 2 are distributed in the first position-limiting holes 3211, and since the first position-limiting holes 3211 are distributed in the first plane and the first position-limiting holes 3211 are distributed in the same direction as the fixing grooves 311 for fixing the non-magnetic fibers 1, the magnetic fibers 2 and the non-magnetic fibers 1 are distributed in the same direction in the initial state, and the fiber bundle is distributed in a one-dimensional state; through time electric field or magnetic field, and adjust the direction of electric field or magnetic field, under the effect of electric field or magnetic field, magnetic fiber 2 rotates along the first plane in first spacing groove 321, under the limiting displacement of first spacing groove 321, magnetic fiber 2 rotates 90 in the first plane, after the rotation is accomplished, magnetic fiber 2 distributes in second spacing hole 3212, make magnetic fiber 2 and non-magnetic fiber 1 vertical distribution, thereby change the tow into the two-dimensional state from the one-dimensional state, improve 3D and print the isotropy of material performance.

In order to further increase the distribution direction of the fibers in the fiber bundle, referring to fig. 4, the position-limiting portion 32 of the connecting device 3 further includes a second position-limiting groove 322, and the magnetic fibers 2 rotate on a second plane in the second position-limiting groove 322; wherein the second plane is perpendicular to the first plane.

Specifically, the second plane in the present application refers to a plane where the non-magnetic fiber 1 is located, the plane being perpendicular to the first plane, and when the first plane is in the horizontal direction, the second plane is in the vertical direction; when the first plane is in the vertical direction, the second plane is in the horizontal direction, and so on.

When the fiber bundle is in an initial state, the two magnetic fibers 2 are kept in the same distribution direction as the non-magnetic fibers 1; after an electric field or a magnetic field is applied, the magnetic fibers 2 distributed in the first limiting groove 321 rotate along the first plane, and the magnetic fibers 2 distributed in the second limiting groove 322 rotate along the second plane, so that the distribution directions of the two magnetic fibers 2 and the non-magnetic fibers 1 are different, the distribution directions of the two magnetic fibers 2 are also different, the fiber bundle is changed from a one-dimensional state to a three-dimensional state, and the isotropy of the performance of the 3D printing material is improved.

Wherein the angle of rotation of the magnetic fiber 2 along the second plane can be any angle within the range of 0-180 degrees, and in order to improve the uniformity of the fiber distribution direction in the fiber bundle and further improve the isotropy of the performance of the 3D printing material, the angle of rotation of the magnetic fiber 2 in the second plane is preferably 90 degrees.

Specifically, similar to the first limiting groove 321, in the present application, the second limiting groove 322 includes a third limiting hole 3221 and a fourth limiting hole 3222 that are communicated with each other, the third limiting hole 3221 and the fourth limiting hole 3222 are both distributed along the second plane, wherein the distribution direction of the third limiting hole 3221 is the same as the distribution direction of the fixing groove 311, and the distribution direction of the fourth limiting hole 3222 is perpendicular to the distribution direction of the third limiting hole 3221.

In an initial state, referring to fig. 5, one magnetic fiber 2 is distributed in the first position-limiting hole 3211, one magnetic fiber 2 is distributed in the third position-limiting hole 3221, and since the first position-limiting hole 3211 is distributed in the first plane, and the first position-limiting hole 3211 is in the same distribution direction as the fixing groove 311 for fixing the non-magnetic fiber 1, the third position-limiting hole 3221 is distributed in the second plane, and the third position-limiting hole 3221 is in the same distribution direction as the fixing groove 311 for fixing the non-magnetic fiber 1, the two magnetic fibers 2 are in the same distribution direction as the non-magnetic fiber 1 in the initial state, and the fiber bundle is distributed in a one-dimensional state; the process of rotating the magnetic fiber 2 in the first limiting groove 321 along the first plane is the same as the above, and is not described herein again; the rotation of the magnetic fiber 2 in the second limiting groove 322 along the second plane is as follows: through a time electric field or a magnetic field and adjusting the direction of the electric field or the magnetic field, under the action of the electric field or the magnetic field, the magnetic fibers 2 in the second limiting groove 322 rotate along the second plane, under the limiting action of the second limiting groove 322, the magnetic fibers 2 rotate 90 degrees in the second plane, after the rotation is completed, as shown in fig. 6, the magnetic fibers 2 are distributed in the fourth limiting hole 3222, so that the magnetic fibers 2 are vertically distributed with the non-magnetic fibers 1, and meanwhile, the magnetic fibers 2 are vertically distributed with another magnetic fiber 2, so that the fiber bundle is changed from a one-dimensional state to a three-dimensional state, and the isotropy of the performance of the 3D printing material is improved.

The utility model discloses still provide an application method of foretell tow, this method includes following step:

s1: the extension directions of the non-magnetic fibers 1 and the magnetic fibers 2 in the fiber bundle are the same, and the fiber bundle is in a one-dimensional state;

s2: applying an electric or magnetic field to the fiber bundle;

s3: the direction of the electric field or the magnetic field is adjusted, the magnetic fiber 2 rotates, and the fiber bundle is in a non-one-dimensional state;

s4: and removing the electric field or the magnetic field, and keeping the fiber bundle in a non-one-dimensional state.

Wherein the fiber bundle is in a non-one-dimensional state comprises that the fiber bundle is in a two-dimensional state or the fiber bundle is in a three-dimensional state.

In the using method, the number of the magnetic fibers 2 can be one or two; the process of changing the state of the non-magnetic fibers 1 and the magnetic fibers 2 in each step is described above, and is not described herein again.

The utility model provides a tow's application method adjusts magnetic fiber 2's distribution direction through utilizing applied electric field or magnetic field for the fibre in the tow is non-one-dimensional state and distributes, thereby all can distribute the fibre that extending direction and this direction are unanimous on can making the 3D printing material of preparation, thereby can improve 3D printing material's performance in all ascending uniformity of side, the performance of solving 3D printing material has anisotropic problem.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.

Claims

1. A fiber bundle, characterized by comprising one non-magnetic fiber (1), at least one magnetic fiber (2) and connecting means (3);

connecting device (3) including fixed part (31) and spacing portion (32) that fixed link to each other, wherein non-magnetic fiber (1) with fixed part (31) fixed connection, magnetic fiber (2) with spacing portion (32) rotate and are connected.

2. The fiber bundle according to claim 1, characterized in that the non-magnetic fibers (1) are polyethylene fibers or glass fibers.

3. A bundle according to claim 1, characterized in that the magnetic fibers (2) are magnetized steel fibers or magnetized carbon fibers.

4. The fiber bundle according to claim 1, wherein the fixing portion (31) is provided with a fixing groove (311); the fixing groove (311) is suitable for being matched with the non-magnetic fiber (1) so as to fix the non-magnetic fiber (1).

5. The fiber bundle according to claim 4, wherein the position-limiting portion (32) comprises a first position-limiting groove (321), and the magnetic fiber (2) rotates along a first plane in the first position-limiting groove (321).

6. The fiber bundle according to claim 5, wherein the first position-limiting groove (321) comprises a first position-limiting hole (3211) and a second position-limiting hole (3212) that are through to each other, the first position-limiting hole (3211) and the second position-limiting hole (3212) are distributed along the first plane, wherein the distribution direction of the first position-limiting hole (3211) is the same as the distribution direction of the fixing groove (311), and the distribution direction of the second position-limiting hole (3212) is perpendicular to the distribution direction of the first position-limiting hole (3211).

7. The fiber bundle according to claim 5, wherein the position-limiting portion (32) further comprises a second position-limiting groove (322), and the magnetic fiber (2) rotates along a second plane in the second position-limiting groove (322); the second plane is perpendicular to the first plane.

8. The fiber bundle according to claim 7, wherein the second position-limiting groove (322) comprises a third position-limiting hole (3221) and a fourth position-limiting hole (3222) which are communicated with each other, the third position-limiting hole (3221) and the fourth position-limiting hole (3222) are distributed along the second plane, wherein the distribution direction of the third position-limiting hole (3221) is the same as the distribution direction of the fixing groove (311), and the distribution direction of the fourth position-limiting hole (3222) is perpendicular to the distribution direction of the third position-limiting hole (3221).