A vertical automated composite material three-dimensional four-way yarn forming device

Abstract

The present invention discloses a vertical automated composite material three-dimensional four-directional yarn forming device, comprising a circular dial unit, an arc dial unit, a driving unit, a yarn carrier unit, and a bracket. A plurality of circular dial units and arc dial units are arranged in a staggered manner and fixed on the bracket. The circular dial unit is provided with four circular arc notches matching the shape of the arc dial unit, and each arc dial unit can carry two installed yarn carrier units. The circular dial unit is connected to the driving unit, and the yarn carrier unit is moved to change its position; the arc dial unit is driven by a swing cylinder to change the position of the yarn carrier unit installed on the arc dial unit. The present invention realizes high automation and high forming efficiency by driving the circular dial unit and the arc dial unit through a motor, and can realize the weaving of preforms with various cross-sectional shapes.

Description

Technical Field

[0001] The present invention relates to the field of three-dimensional braiding, and particularly to a vertical automatic forming device for three-dimensional four-way yarn of composite materials. Background Art

[0002] Due to its advantages such as high specific strength, high specific modulus, ablation resistance, fatigue resistance, and good designability, three-dimensional braided composites are widely used in the fields of aerospace, rail transit, automobiles, ships, etc. The preform of three-dimensional braided composites is a spatial network structure, which has better interlayer performance compared with traditional two-dimensional laminated composites, can adapt to more demanding and complex application scenarios, and is the focus of attention in the current composite material industry.

[0003] The overall process of three-dimensional braided composite components includes preform forming, prepreg impregnation, and post-finishing. Among them, the existing preform forming devices have the disadvantages of low automation and low forming efficiency. Summary of the Invention

[0004] Object of the Invention: Aiming at the disadvantages of low automation and low forming efficiency in the prior art, the present invention provides a vertical automatic forming device for three-dimensional four-way yarn of composite materials.

[0005] Technical Solution: To solve the above problems, the present invention adopts a vertical automatic forming device for three-dimensional four-way yarn of composite materials, which includes a circular dial unit, an arc dial unit, a driving unit, a yarn carrier unit, and a bracket; a number of circular dials arranged in rows and columns are provided on the circular dial unit, and the circular dial is a circular structure with four equally spaced circular arc notches on its outer edge; a number of cylindrical arc dials and a swing cylinder are provided on the arc dial unit, the arc dial is connected to the swing cylinder and a yarn carrier unit is installed on the end face of the arc dial, the circular outer edge of the arc dial coincides with the circular arc notch on the circular dial, and two symmetric slots are provided on the arc dial; the arc dials located between two adjacent circular dials cooperate with these two adjacent circular dials at the same time.

[0006] The driving unit drives the circular dial to rotate, and the slots are used to accommodate the edge of the circular arc notch of the circular dial when the edge rotates to avoid interference with the rotation of the arc dial, and the swing cylinder drives the arc dial to rotate so that the position of the yarn carrier unit carried on the arc dial changes.

[0007] Further, the circular dial unit includes a transmission module and a working module, and the transmission module includes a transmission gear, a shrink disc, and a transmission shaft; the transmission gear is sleeved on the transmission shaft, and the shrink disc is installed in the gap between the transmission gear and the transmission shaft.

[0008] Further, the adjacent transmission gears in the same row of the circular dial unit are meshed with each other, and the positions of the transmission gears between adjacent rows are staggered front and back.

[0009] Further, the working module includes a circular pusher, an inner guide rail pressing plate, an outer guide rail pressing plate, and a guide rail chassis; the inner guide rail pressing plate is annular, one side of the inner guide rail pressing plate contacts the circular pusher, and the other side contacts the guide rail chassis; the guide rail chassis has a notch with the same position and size as the circular pusher; an outer guide rail pressing plate extends from the arc part of the guide rail chassis in a direction perpendicular to the guide rail chassis towards the circular pusher; the inner guide rail pressing plate and the outer guide rail pressing plate limit the movement position of the yarn carrier unit.

[0010] Further, a flange is also provided on the working module, and the circular pusher is fixedly connected to the transmission shaft through the flange.

[0011] Further, the arc pusher unit includes an arc pusher pressing plate, an arc pusher, a pedestal bearing, a coupling, a mounting plate, and a swing cylinder; the arc pusher pressing plate is installed between two card slots; the arc pusher pressing plate is connected to the yarn carrier unit to fix the position of the yarn carrier unit; the swing cylinder is fixed on the mounting plate, and the swing cylinder is connected to the arc pusher through the coupling; the pedestal bearing is sleeved on the coupling, and the pedestal bearing is located between the arc pusher and the mounting plate.

[0012] Further, the driving unit includes a driving motor, a motor mounting plate, a driving gear, and a driven gear meshing with the driving gear; the driven gear is connected to the transmission shaft, the driving motor is installed on the motor mounting plate, and during operation, the driving motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, and further drives the transmission shaft to move.

[0013] Further, the yarn carrier unit includes a yarn outlet, a yarn tube, a yarn guiding port, a tension spring, and a yarn carrier base; the yarn carrier base is connected to the arc pusher pressing plate.

[0014] Further, the bracket includes an inner chassis and an outer chassis; a guide rail support shaft perpendicular to the guide rail chassis is provided on the guide rail chassis, and the circular pusher unit is fixed to the inner chassis through the guide rail support shaft; the arc pusher unit is fixed to the inner chassis through the pedestal bearing; the driving unit is fixed to the outer chassis.

[0015] Further, two yarn carrier units are arranged side by side on each arc pusher; after the driving unit drives the circular pusher to rotate 90° and then pauses, the swing cylinder drives the arc pusher to rotate 180° so that the two yarn carrier units on the arc pusher are mutually transposed.

[0016] Beneficial effects: Compared with the prior art, the significant advantages of the present invention are (1) driving multiple circular pusher units and arc pusher units to work through the motor, achieving high automation and high forming efficiency; (2) during the forming process of the device, the spatial position of the yarn is relatively low, which is convenient for observation; (3) it is applicable to traditional yarn carrier of various models and can realize the knitting and forming of various types of yarns, such as carbon fiber, glass fiber and other yarns; (4) it can realize the knitting of preforms with various cross-sectional shapes. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the vertical automatic composite material three-dimensional four-way yarn forming device of the present invention;

[0018] Figure 2 It is a rear view of the vertical automatic composite material three-dimensional four-way yarn forming device of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the circular dial unit of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the transmission module of the circular dial unit of the present invention;

[0021] Figure 5 It is a schematic diagram of the structure of the working module of the circular dial unit of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the working module of the circular dial unit removing the circular dial component;

[0023] Figure 7 It is a schematic diagram of the structure of the arc dial unit of the present invention;

[0024] Figure 8 It is a schematic diagram of the cooperation relationship between the circular dial and the card slot of the present invention;

[0025] Figure 9 It is a schematic diagram of the structure of the drive unit of the present invention;

[0026] Figure 10 It is a schematic diagram of the combination of the circular dial unit and the arc dial unit of the present invention;

[0027] Figure 11 It is a schematic diagram of the structure of the yarn carrier of the present invention. Specific embodiments

[0028] As Figure 1 and Figure 2 shown, a vertical automatic composite material three-dimensional four-way yarn forming device in this embodiment includes a circular dial unit 1, an arc dial unit 2, a drive unit 3, a yarn carrier unit 4, and a bracket.

[0029] As Figure 3 shown, the circular dial unit 1 includes a transmission module 11 and a working module 12. As Figure 4 shown, the transmission module 11 includes a transmission gear 111, a shrink disc 112, and a transmission shaft 113; the transmission gear 111 is sleeved on the transmission shaft 113, and the shrink disc 112 is installed in the gap between the transmission gear 111 and the transmission shaft 113. As Figure 5 and Figure 6As shown in the figure, the working module 12 includes a circular pusher 121, an inner guide rail pressing plate 122, an outer guide rail pressing plate 123, a guide rail chassis 124, a flange 125, and a guide rail support shaft 126. The circular pusher 121 is a circular structure with four equally spaced circular arc notches on its outer edge. The inner guide rail pressing plate 122 is circular ring-shaped. One side of the inner guide rail pressing plate 122 contacts the circular pusher 121, and the other side contacts the guide rail chassis 124. The guide rail chassis 124 has a notch with the same position and size as that of the circular pusher 121; a section of the outer guide rail pressing plate 123 extends from the circular arc part of the guide rail chassis 124 towards the circular pusher 121 in a direction perpendicular to the guide rail chassis 124. During operation, the inner guide rail pressing plate 122 and the outer guide rail pressing plate 123 limit the movement position of the yarn carrier unit 4. The circular pusher 121 is fixedly connected to the drive shaft 113 through the flange 125.

[0030] As Figure 7 shown in the figure, the arc pusher unit 2 includes an arc pusher pressing plate 21, an arc pusher 22, a pedestal bearing 23, a coupling 24, a mounting plate 25, and a swing cylinder 26. The arc pusher 22 is a cylinder, and the circular outer edge of the arc pusher 22 fits with the circular arc notches on the circular pusher 121; two symmetrical card slots 221 are provided on the arc pusher 22, and the card slots 221 are used to accommodate the edge of the circular arc notch of the circular pusher 121 when the edge rotates to avoid interference with the rotation of the arc pusher 22. The arc pusher pressing plate 21 is installed between the two card slots 221 and is used to fix the position of the yarn carrier unit 4. The swing cylinder 26 is fixed on the mounting plate 25, and the swing cylinder 26 is connected to the arc pusher 22 through the coupling 24; the pedestal bearing 23 is sleeved on the coupling 24, and the pedestal bearing 23 is located between the arc pusher 22 and the mounting plate 25.

[0031] As Figure 9 shown in the figure, the drive unit 3 includes a drive motor 31, a motor mounting plate 32, a drive gear 34, and a driven gear 33 meshing with the drive gear 34; the driven gear 33 is connected to the drive shaft 113, and the drive motor 31 is installed on the motor mounting plate 32.

[0032] As Figure 11 shown in the figure, the yarn carrier unit 4 includes a yarn outlet 41, a yarn tube 42, a yarn guide opening 43, a tension spring 44, and a yarn carrier base 45; the yarn carrier base 45 is connected to the arc pusher pressing plate 21.

[0033] As Figure 1 and Figure 2 shown in the figure, the bracket includes an inner chassis 5 and an outer chassis 6; a guide rail support shaft 126 perpendicular to the guide rail chassis 124 is provided on the guide rail chassis 124, and the circular pusher unit 1 is fixed on the inner chassis 5 through the guide rail support shaft 126; the arc pusher unit 2 is fixed on the inner chassis 5 through the pedestal bearing 23; the drive unit 3 is fixed on the outer chassis 6.

[0034] The circular dialing units 1 are arranged in a 5×4 grid. The adjacent transmission gears 111 in the same row of circular dialing units 1 mesh with each other, and the positions of the transmission gears 111 are staggered between adjacent rows, enabling the circular dialing units 1 to work in layers without affecting each other between different layers of circular dialing units 1. As Figure 1 and Figure 10 shown, the arc dialing units 2 are arranged staggered with the circular dialing units 1. There is an arc dialing unit 2 matching each notch on the circular dialing unit 1, and no arc dialing unit 2 is installed on the right side of the rightmost column of circular dialing units 1.

[0035] During operation, the driving unit 3 drives the driving gear 34 to rotate. The driving gear 34 drives the driven gear 33 to rotate, and then drives the transmission shaft 113 to move, realizing the rotation of the circular dialing unit 1. As Figure 8 shown, the tip 1211 of the notch on the circular dial falls into the card slot 221 as the circular dialing unit 1 rotates. One or two yarn carrier units 4 are installed on each arc dial 22. The swing cylinder 26 drives the arc dial 22 to rotate, changing the positions of the yarn carrier units 4 on the arc dialing unit 2, and each arc dial 22 can move independently. In this embodiment, after the circular dialing unit 1 rotates 90°, it pauses, and then the arc dialing unit 2 rotates 180°, and the positions of the yarn carrier units 4 on the arc dialing unit 2 are exchanged, completing a basic working cycle. The preform formed in one cycle is a solid circular preform. The movements of the circular dialing unit 1 and the arc dialing unit 2 can also be flexibly controlled to realize the weaving of preforms with different cross-sectional shapes.

Claims

1. A vertical automatic composite material three-dimensional four-way yarn forming device, characterized in that It includes a circular dialing unit (1), an arc dialing unit (2), a driving unit (3), a yarn carrier unit (4) and a bracket; several circular dials (121) arranged in rows and columns are provided on the circular dialing unit (1), and the circular dial (121) is a circular structure with four equally spaced circular arc notches on its outer edge; several cylindrical arc dials (22) and a swing cylinder (26) are provided on the arc dialing unit (2), the arc dial (22) is connected to the swing cylinder (26), and the yarn carrier unit (4) is installed on the end face of the arc dial (22). The circular outer edge of the arc dial (22) fits with the circular arc notch on the circular dial (121), and two symmetric card slots (221) are provided on the arc dial (22); the arc dials (22) located between two adjacent circular dials (121) cooperate with these two adjacent circular dials (121) simultaneously. The driving unit (3) drives the circular dial (121) to rotate. The card slot (221) is used to accommodate the edge of the circular arc notch of the circular dial (121) when the edge rotates to avoid interference between the edge and the arc dial (22) during rotation. The swing cylinder (26) drives the arc dial (22) to rotate, causing a change in the position of the yarn carrier unit (4) carried on the arc dial (22).

2. The shaping device according to claim 1, wherein The circular dialing unit (1) includes a transmission module (11) and a working module (12). The transmission module (11) includes a transmission gear (111), a shrink disc (112) and a transmission shaft (113); the transmission gear (111) is sleeved on the transmission shaft (113), and the shrink disc (112) is installed in the gap between the transmission gear (111) and the transmission shaft (113).

3. The shaping device according to claim 2, characterized in that, The adjacent transmission gears (111) in the same row of the circular dialing unit (1) mesh with each other, and the positions of the transmission gears (111) are staggered front and back between adjacent rows.

4. The shaping device according to claim 3, characterized in that, The working module (12) includes a circular dial (121), an inner guide rail pressing plate (122), an outer guide rail pressing plate (123) and a guide rail chassis (124); the inner guide rail pressing plate (122) is circular, one side of the inner guide rail pressing plate (122) contacts the circular dial (121), and the other side contacts the guide rail chassis (124); the guide rail chassis (124) has a notch with the same position and size as the notch on the circular dial (121); an outer guide rail pressing plate (123) extends from the arc part of the guide rail chassis (124) towards the circular dial (121) in a direction perpendicular to the guide rail chassis (124); the inner guide rail pressing plate (122) and the outer guide rail pressing plate (123) limit the movement position of the yarn carrier unit (4).

5. The shaping device according to claim 4, characterized in that A flange plate (125) is also provided on the working module (12), and the circular dial (121) is fixedly connected to the transmission shaft (113) through the flange plate (125).

6. The shaping device according to claim 5, characterized in that The arc dialing unit (2) includes an arc dialing pressure plate (21), an arc dial (22), a pedestal bearing (23), a coupling (24), a mounting plate (25) and a swing cylinder (26); the arc dialing pressure plate (21) is installed between two card slots (221); the arc dialing pressure plate (21) is connected to the yarn carrier unit (4) to fix the position of the yarn carrier unit (4); the swing cylinder (26) is fixed on the mounting plate (25), and the swing cylinder (26) is connected to the arc dial (22) through the coupling (24); the pedestal bearing (23) is sleeved on the coupling (24), and the pedestal bearing (23) is located between the arc dial (22) and the mounting plate (25).

7. The shaping device according to claim 6, characterized in that, The driving unit (3) includes a driving motor (31), a motor mounting plate (32), a driving gear (34) and a driven gear (33) meshing with the driving gear (34); the driven gear (33) is connected to the transmission shaft (113), the driving motor (31) is installed on the motor mounting plate (32), and during operation, the driving motor (31) drives the driving gear (34) to rotate, the driving gear (34) drives the driven gear (33) to rotate, and further drives the transmission shaft (113) to move.

8. The shaping device according to claim 7, wherein The yarn carrier unit (4) includes a yarn outlet (41), a yarn tube (42), a yarn guiding port (43), a tension spring (44) and a yarn carrier base (45); the yarn carrier base (45) is connected to the arc dialing pressure plate (21).

9. The shaping device according to claim 8, characterized in that, The bracket includes an inner chassis (5) and an outer chassis (6); a guide rail support shaft (126) perpendicular to the guide rail chassis (124) is provided on the guide rail chassis (124), and the circular dialing unit (1) is fixed to the inner chassis (5) through the guide rail support shaft (126); the arc dialing unit (2) is fixed to the inner chassis (5) through the pedestal bearing (23); the driving unit (3) is fixed to the outer chassis (6).

10. The shaping device according to claim 1, characterized in that, Two yarn carrier units (4) are arranged side by side on each arc dial (22); after the driving unit (3) drives the circular dial (121) to rotate 90° and then pauses, the swing cylinder (26) drives the arc dial (22) to rotate 180° so that the two yarn carrier units (4) on the arc dial (22) are interchanged with each other.

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