Double-station three-dimensional weaving profiling weaving equipment

Abstract

The invention provides double-station three-dimensional weaving profiling forming equipment. The double-station three-dimensional weaving profiling forming equipment comprises a jacquard module, two stations located below the jacquard module and a profiling forming weaving device. According to the profiling forming weaving device, the detachable main core mold placed on the main core mold fixing frame is adopted, when preforms in different shapes need to be formed, corresponding target core molds can be selected, and therefore more forming choices are achieved, and the application range is wider. The profiling forming weaving device is provided with three stages of rolling, so that the pressure applied to the prefabricated body in each stage of rolling can be reduced, the displacement of fibers in the prefabricated body is reduced, and the damage of profiling forming to the tissue structure of the prefabricated body is reduced, and therefore, the profiling forming weaving device can adapt to mandrels with more sizes and more shapes. The height of the core mold can be adjusted through the lifting mechanism, the lifting mechanism is matched with three-stage rolling, and prefabricated bodies with multiple shapes and multiple sizes can be formed in a profiling mode.

Description

Technical Field

[0001] The invention belongs to the field of composite material textile machinery, and in particular relates to a double-station three-dimensional weaving contour weaving equipment. Background Art

[0002] At present, the heavy load-bearing components of aerospace vehicles are restricting the development of aircraft. With the progress of the composite material industry, carbon fiber composite materials have gradually become the first choice for the main load-bearing components of aerospace vehicles due to their high specific strength, high specific stiffness, good damage tolerance and other performance advantages. How to form complex outer contours and large-sized components with high quality, high efficiency and low loss is the focus of composite material weaving research. In order to increase the industrial automation in the field of composite material weaving, in-depth research on related processes and equipment has far-reaching significance.

[0003] The 3D weaving process has the advantages of strong designability, high degree of automation and fast forming speed. Its main principle is the interweaving of warp and weft yarns to form angle interlocking, thereby forming a stable fabric structure. Compared with other fabrics, it has better interlayer performance. In order to form fabrics with complex outer contours and large sizes, engineers often need to design complex fabric structures, and different fabric structures may have different performances. Therefore, how to quickly form complex preforms with good mechanical properties has become the focus of current research. Summary of the invention

[0004] Purpose of the invention: To solve the above problems, the present invention provides a double-station three-dimensional woven contour weaving equipment, which can realize the automatic weaving of variable diameter and variable thickness annular preforms, can weave several preforms at the same time, and the structure of each preform can be different.

[0005] To achieve the above purpose, the technical solution of the double-station three-dimensional weaving contour weaving equipment provided by the present invention is:

[0006] A double-station three-dimensional woven contour weaving equipment, comprising a jacquard module for intersecting and positioning warp yarns, two stations located below the jacquard module, and a contour shaping weaving device arranged on at least one station; the jacquard module comprises a jacquard machine, two wire separation pipes located below the jacquard machine and bifurcated, each wire separation pipe is provided with a harness connected to the jacquard machine; the two stations below the jacquard module are respectively located below the two wire separation pipes; the contour shaping weaving device comprises a yarn separation plate, a contour shaping component, and a weaving component located between the yarn separation plate and the contour shaping component; the weaving component ... A yarn guide rod at one end close to the yarn dividing plate, a beating reed located at the other end close to the profiling forming component, a beating connecting rod mechanism for driving the beating reed to move close to or away from the yarn guide rod, and a weft insertion module located above the beating reed; the profiling forming component includes a lifting mechanism, a main core mold placement frame installed on the lifting mechanism and movable up and down, a detachable main core mold installed in the main core mold placement frame, a core mold motor driving the main core mold to rotate, and three-stage rollers installed above and on both sides of the main core mold; the profiling forming component also includes a secondary roller located upstream of the three-stage roller and a primary roller located upstream of the secondary roller.

[0007] Beneficial effects: The double-station three-dimensional weaving profiling forming equipment provided by the present invention has one controller controlling one jacquard faucet, and one jacquard faucet can control the warp yarns of two stations, so the weaving efficiency is higher. A detachable main core mold placed on the main core mold fixing frame is adopted. When it is necessary to form preforms of different shapes, the corresponding target core mold can be selected, so there are more forming options and a wider range of applications. The three-stage rolling can reduce the pressure applied to the preform in each stage of rolling, reduce the displacement of fibers in the preform, and reduce the damage to the preform structure caused by profiling forming, so it can adapt to core molds of more sizes and more shapes. The core mold can be adjusted in height by adopting a lifting mechanism. The lifting mechanism cooperates with the three-stage rolling to form preforms of multiple shapes and sizes.

[0008] Furthermore, the secondary rolling and the primary rolling are located on a stand, and the stand is independent of the core mold placement stand.

[0009] Furthermore, the first-level rolling includes a transversely arranged first-level transverse roller, and a first front core mold cooperating with the first-level transverse roller is provided below the first-level transverse roller; the second-level rolling includes a transversely arranged second-level transverse roller and two second-level oblique rollers respectively located on both sides of the second-level transverse roller, and a second front core mold cooperating with the second-level rolling is provided below the second-level rolling; the third-level rolling includes a transversely arranged third-level transverse roller and two third-level oblique rollers respectively located on both sides of the third-level transverse roller.

[0010] Furthermore, the axial direction of the secondary transverse roller intersects with the axial direction of the secondary oblique roller to form a first obtuse angle, and the axial direction of the tertiary transverse roller intersects with the axial direction of the tertiary oblique roller to form a second obtuse angle, and the second angle is greater than the first angle.

[0011] Furthermore, the lifting mechanism includes slide rails located on both sides of the main core mold placement rack and extending up and down, sliders installed on the slide rails, and a lifting platform connected to the sliders; connecting shafts are provided on both sides of the main core mold placement rack to connect with the lifting platform, and the sliders are lifted and lowered along the slide rails to drive the lifting platform and the main core mold placement rack to lift and lower.

[0012] Furthermore, the slide rail is provided with a plurality of positioning holes from top to bottom, and the slider is provided with a detachable positioning bolt. The slider moves to a position where a positioning hole is located, and the slider is fixed to the slide rail with the positioning bolt.

[0013] Furthermore, the connecting shaft includes a main core mold placement rack connecting shaft extending outward from the side of the main core mold placement rack and a core mold adjustment mechanism connecting shaft extending inward from the side of the lifting platform. The main core mold placement rack connecting shaft and the core mold adjustment mechanism connecting shaft are coaxially connected through a coupling.

[0014] Furthermore, the copying forming component also includes a landing vehicle near one end of the main core mold placement rack, and the landing vehicle is used to carry the main core mold taken down from the main core mold placement rack.

[0015] Furthermore, the weaving component has a base that supports a beating-up connecting rod mechanism and a beating-up reed, and the beating-up connecting rod mechanism includes a motor reducer assembly, a drive shaft, a connecting rod, a pulling rod, and a pull rod; one end of the pull rod is hinged to the bottom of the beating-up reed and the other end is hinged to the top of the pull rod; the bottom of the pull rod is hinged to the inner wall of the base; one end of the connecting rod is hinged to the pull rod and the other end is coordinated with the drive shaft; the hinge point of the connecting rod and the pull rod is located at a position below the hinge point of the pull rod and the connecting rod; the part of the drive shaft that passes through the connecting rod and the part of the drive shaft that is connected to the output shaft of the motor reducer assembly form a "J"-shaped crank structure, and the drive shaft connected to the output shaft of the motor reducer assembly and the part of the drive shaft that passes through the connecting rod are parallel but not coaxially arranged.

[0016] The present invention also provides a technical solution for a profiling forming component:

[0017] The profiling forming components include a lifting mechanism, a main core mold placement frame installed on the lifting mechanism and movable up and down, a detachable main core mold installed in the main core mold placement frame, a core mold motor driving the main core mold to rotate, and three-stage rollers installed above and on both sides of the main core mold; the profiling forming components also include a secondary roller located upstream of the three-stage roller and a primary roller located upstream of the secondary roller; the primary roller includes a transversely arranged primary cross roller.

[0018] Beneficial effects: The profiling forming component is used to perform three-dimensional weaving on the preform. A detachable main core mold placed on the main core mold fixing frame is used. When a preform of different shapes needs to be formed, the corresponding target core mold can be selected, so there are more forming options and a wider range of applications. The three-stage rolling can reduce the pressure applied to the preform in each stage of rolling, reduce the displacement of the fibers in the preform, and reduce the damage to the preform structure caused by profiling forming, so it can adapt to core molds of more sizes and shapes. The core mold can be adjusted in height by using a lifting mechanism. The lifting mechanism cooperates with the three-stage rolling to form preforms of multiple shapes and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the double-station three-dimensional weaving contour weaving equipment of the present invention.

[0020] Figure 2 It is a three-dimensional diagram of the contour-forming weaving device.

[0021] Figure 3 It is a structural diagram of the weaving components in the contour forming weaving device.

[0022] Figure 4 It is a structural diagram of the first perspective of the contour forming component in the contour forming weaving device.

[0023] Figure 5 This is a structural diagram of the second perspective of the profiling forming component.

[0024] Figure 6 This is a structural diagram of the third viewing angle of the profiling forming component.

[0025] Figure 7 This is a schematic diagram of the coordination between the lifting platform, the slider and the slide rail in the profiling forming component. DETAILED DESCRIPTION

[0026] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] Please combine Figure 1 As shown, the present invention discloses a double-station three-dimensional woven contour weaving equipment, comprising a jacquard module 1 for locating the intersection of warp yarns, two stations located below the jacquard module 1, and a contour weaving device 2 arranged on at least one station; the equipment supports providing double stations for weaving at the same time, such as Figure 1As shown, a contouring weaving device 2 has been placed in one station, and another contouring weaving device can also be placed in another station 3.

[0028] Please combine Figure 1 As shown, the jacquard module includes a jacquard machine 101, two wire-dividing pipes 102 located below the jacquard machine and bifurcated, each wire-dividing pipe 102 is provided with a harness 103 connected to the jacquard machine; the two workstations below the jacquard module 1 are respectively located below the two wire-dividing pipes 102;

[0029] Please combine Figure 2 and Figure 3 As shown, the contouring weaving device 2 comprises a yarn separation plate 201 , a contouring forming component 203 , and a weaving component 202 located between the yarn separation plate 201 and the contouring forming component 203 .

[0030] The weaving component 202 includes a yarn guide rod 20201 located at one end and close to the yarn dividing plate 201, a weft beating reed 20204 located at the other end and close to the contour forming component 203, a weft beating connecting rod mechanism 20202 for driving the weft beating reed 20204 to move close to or away from the yarn guide rod 20201, and a weft insertion module 20203 located above the weft beating reed 20204.

[0031] The weaving component 202 has a base that supports a beating-up connecting rod mechanism 20202 and a beating-up reed 20204. The beating-up connecting rod mechanism 20202 includes a motor reducer assembly 4205, a drive shaft 4201, a connecting rod 4202, a pulling rod 4203, and a pulling rod 4204. A sliding mechanism 4206 of a slider and a sliding rail is provided at the bottom of the beating-up reed 20204, and the sliding mechanism 4206 is fixed to the inner wall of the base. One end of the pulling rod 4203 is hinged to the bottom of the beating reed 20204 and the other end is hinged to the top of the pulling rod 4204; the bottom of the pulling rod 4204 is hinged to the inner wall of the base; one end of the connecting rod 4202 is hinged to the pulling rod 4204 and the other end cooperates with the driving shaft 4201; the hinge point of the connecting rod 4202 and the pulling rod 4204 is located below the hinge point close to the pulling rod 4203 and the connecting rod 4202; the parts at both ends of the driving shaft 4201 form a "J"-shaped crank structure, and the driving shaft 4201 is connected to the output shaft of the motor reducer assembly 4205 and is parallel to the part of the driving shaft 4201 that passes through the connecting rod 4202 but is not arranged on the same axis. Through the "J"-shaped crank structure, the driving shaft 4201 drives the connecting rod 4202 to make reciprocating motion back and forth when rotating, so that the beating reed 20204 reciprocates close to or away from the yarn guide rod 202.

[0032] Please combine Figures 4 to 7As shown, the profiling forming component 203 includes a lifting mechanism, a main core mold placement frame 20306 installed on the lifting mechanism and movable up and down, a detachable main core mold 20307 installed in the main core mold placement frame 20306, a core mold motor 20308 driving the main core mold 20307 to rotate, and a three-stage roller 20304 installed above and on both sides of the main core mold 20307; the profiling forming component 203 also includes a secondary roller 20302 located upstream of the three-stage roller 20304 and a primary roller 20301 located upstream of the secondary roller 20302. The secondary roller 20302 and the primary roller 20301 are located on a stand, and the stand is independent of the core mold placement frame 20306.

[0033] The lifting mechanism includes slide rails 203022 extending up and down on both sides of the main core mold placement frame 20306, sliders 203024 installed on the slide rails, and a lifting platform 501 connected to the sliders 203024; the main core mold placement frame 20306 is provided with connecting shafts on both sides to connect with the lifting platform 501, and the sliders are lifted and lowered along the slide rails to drive the lifting platform 501 and the main core mold placement frame 20306 to rise and fall. The slide rail 203022 is provided with a plurality of positioning holes from top to bottom, and the slider 203024 is provided with a detachable positioning bolt (not shown), and the slider 203024 is moved to the position of a certain positioning hole, and the slider is fixed to the slide rail 203022 with the positioning bolt. The connecting shaft includes a main core mold placement rack connecting shaft 203010 extending laterally outward from the main core mold placement rack 20306 and a core mold adjustment mechanism connecting shaft 203018 extending laterally inward from the lifting platform 501. The main core mold placement rack connecting shaft 203010 and the core mold adjustment mechanism connecting shaft 203018 are coaxially connected via a coupling 203014.

[0034] For the three-stage rolling, the first-stage rolling 20301 includes a transversely arranged first-stage transverse rolling roller 203011, below which a first front core mold 203012 cooperating with the first-stage transverse rolling roller 203011 is arranged, the second-stage rolling 20302 includes a transversely arranged second-stage transverse rolling roller 203021 and two second-stage oblique rolling rollers 203022 respectively located on both sides of the second-stage transverse rolling roller 203021, below which a second front core mold 203023 cooperating with the second-stage rolling 20302 is arranged; the third-stage rolling 20304 includes a transversely arranged third-stage transverse rolling roller 203041 and two third-stage oblique rolling rollers 203042 respectively located on both sides of the third-stage transverse rolling roller 203041. The secondary transverse roller 203021 axially intersects with the secondary oblique roller 203022 axially to form a first obtuse angle, and the tertiary transverse roller 203041 axially intersects with the tertiary oblique roller 203042 axially to form a second obtuse angle, and the second angle is greater than the first angle. The woven woven fabric will pass through the primary rolling 20301, the secondary rolling 20302 and the tertiary rolling 20304 in sequence, and then be tightly wound on the main core mold 20307 to complete the contour weaving. Each level of the three-level rolling has a different rolling angle. Starting from the first level, the rolling angle is increased in sequence until the third level rolling, and the woven fabric can be tightly pressed on the main core mold 20307. The main core mold 20307 is driven to rotate by the core mold motor 20308 to curl the woven fabric to the required thickness. The profiling forming component 203 also includes a step-down vehicle 20305 near one end of the main core mold placement frame 20306, and the step-down vehicle 20305 is used to carry the main core mold 20307 taken off the main core mold placement frame. The present forming equipment adopts three-stage rolling, each stage of rolling is provided with a different rolling angle and each stage of rolling height is adjustable. The three-stage rolling can reduce the pressure applied to the preform in each stage of rolling, reduce the displacement of the fibers in the preform, and reduce the damage to the preform structure caused by profiling forming, so that it can adapt to main core molds of more sizes and shapes. The forming equipment adopts a main core mold adjustment mechanism, which can adjust the height and angle of the main core mold. For example, the movement of the main core mold placement frame 20306 can be controlled by moving the sliders 203024 on both sides up and down, and the height of the sliders 203024 of the main core mold adjustment mechanism on both sides can be inconsistent, so that the main core mold placement frame 20306 has a certain angle with the horizontal direction. The main core mold adjustment mechanism cooperates with the three-stage rolling to form preforms with multiple shapes and sizes.

Claims

1. A double-station three-dimensional woven contour weaving equipment, characterized in that: It comprises a jacquard module (1) for merging and positioning warp yarns, two workstations located below the jacquard module (1), and a contour-forming weaving device (2) arranged on at least one of the workstations; The jacquard module comprises a jacquard machine (101), and two wire-dividing pipes (102) located below the jacquard machine and arranged in a bifurcated manner, each wire-dividing pipe (102) being provided with a harness (103) connected to the jacquard machine; and two workstations below the jacquard module (1) are respectively located below the two wire-dividing pipes (102); The contour-forming weaving device (2) comprises a yarn separation plate (201), a contour-forming component (203), and a weaving component (202) located between the yarn separation plate (201) and the contour-forming component (203); The weaving component (202) comprises a yarn guide rod (20201) located at one end and close to the yarn dividing plate (201), a beating reed (20204) located at the other end and close to the contour forming component (203), a beating connecting rod mechanism (20202) for driving the beating reed (20204) to move close to or away from the yarn guide rod (20201), and a weft insertion module (20203) located above the beating reed (20204); The profiling forming component (203) comprises a lifting mechanism, a main core mold placement frame (20306) installed on the lifting mechanism and movable up and down, a detachable main core mold (20307) installed in the main core mold placement frame (20306), a core mold motor (20308) driving the main core mold (20307) to rotate, and a three-stage roller (20304) installed above and on both sides of the main core mold (20307); the profiling forming component (203) further comprises a two-stage roller (20302) located upstream of the three-stage roller (20304), and a one-stage roller (20301) located upstream of the two-stage roller (20302).

2. The double-station three-dimensional woven contour weaving equipment according to claim 1 is characterized in that: The secondary rolling (20302) and the primary rolling (20301) are located on a stand, which is independent of the core mold placement stand (20306).

3. The double-station three-dimensional woven contour weaving equipment according to claim 1 or 2, characterized in that: The first-level rolling (20301) includes a first-level transverse rolling roller (203011) arranged transversely, and a first front core mold (203012) cooperating with the first-level transverse rolling roller (203011) is arranged below the first-level transverse rolling roller (203011); the second-level rolling (20302) includes a second-level transverse rolling roller (203021) arranged transversely and two second-level oblique rolling rollers (203022) respectively located on both sides of the second-level transverse rolling roller (203021); and a second front core mold (203023) cooperating with the second-level rolling (20302) is arranged below the second-level rolling (20302); the third-level rolling (20304) includes a third-level transverse rolling roller (203041) arranged transversely and two third-level oblique rolling rollers (203042) respectively located on both sides of the third-level transverse rolling roller (203041).

4. The double-station three-dimensional woven contour weaving equipment according to claim 3 is characterized in that: The secondary transverse roller (203021) axially intersects with the secondary oblique roller (203022) axially to form an obtuse first angle, and the tertiary transverse roller (203041) axially intersects with the tertiary oblique roller (203042) axially to form an obtuse second angle, and the second angle is greater than the first angle.

5. The double-station three-dimensional woven contour weaving equipment according to claim 4 is characterized in that: The lifting mechanism includes slide rails (203022) located on both sides of the main core mold placement frame (20306) and extending up and down, sliders (203024) installed on the slide rails, and a lifting platform (501) connected to the sliders; connecting shafts are provided on both sides of the main core mold placement frame (20306) to connect with the lifting platform (501), and the sliders are lifted and lowered along the slide rails to drive the lifting platform (501) and the main core mold placement frame (20306) to lift and lower.

6. The double-station three-dimensional woven contour weaving equipment according to claim 5 is characterized in that: The slide rail (203022) is provided with a plurality of positioning holes from top to bottom, and the slider (203024) is provided with a detachable positioning bolt. The slider is moved to a position where a positioning hole is located, and the slider is fixed to the slide rail with the positioning bolt.

7. The double-station three-dimensional woven contour weaving equipment according to claim 5 is characterized in that: The connecting shaft comprises a main core mold placement frame connecting shaft extending outwardly from the main core mold placement frame (20306) and a core mold adjustment mechanism connecting shaft extending inwardly from the lifting platform (501), and the main core mold placement frame connecting shaft and the core mold adjustment mechanism connecting shaft are coaxially connected via a coupling.

8. The double-station three-dimensional woven contour weaving equipment according to claim 7 is characterized in that: The imitation forming component (203) further comprises a step-down vehicle (20305) close to one end of the main core mold placement rack (20306), and the step-down vehicle (20305) is used to carry the main core mold taken off the main core mold placement rack.

9. The double-station three-dimensional woven contour weaving equipment according to claim 1 is characterized in that: The weaving component (202) has a base that supports a beating-up connecting rod mechanism (20202) and a beating-up reed (20204); the beating-up connecting rod mechanism (20202) includes a motor reducer assembly, a drive shaft (4201), a connecting rod (4202), a pulling rod (4203), and a pulling rod (4204); one end of the pulling rod (4205) is hinged to the bottom of the beating-up reed (20204) and the other end is hinged to the top of the pulling rod (4204); the bottom of the pulling rod (4204) is hinged to the inner wall of the base; the connecting rod mechanism (20202) includes a motor reducer assembly, a drive shaft (4201), a connecting rod (4202), a pulling rod (4203), and a pulling rod (4204); one end of the pulling rod (4205) is hinged to the bottom of the beating-up reed (20204) and the other end is hinged to the top of the pulling rod (4204); the bottom of the pulling rod (4204) is hinged to the inner wall of the base; One end of the rod (4202) is hinged to the pull rod (4204) and the other end is matched with the drive shaft (4201); the hinge point of the connecting rod (4202) and the pull rod (4204) is located below the hinge point of the pull rod (4205) and the connecting rod (4202); the parts at both ends of the connecting rod (4202) form a "J"-shaped crank structure, and the drive shaft (4201) is connected to the output shaft of the motor reducer assembly and the part of the drive shaft (4201) passing through the connecting rod (4202) is parallel but not coaxially arranged.

10. A contour forming component, characterized in that: The invention comprises a lifting mechanism, a main core mold placement frame (20306) installed on the lifting mechanism and movable up and down, a detachable main core mold (20307) installed in the main core mold placement frame (20306), a core mold motor (20308) driving the main core mold (20307) to rotate, and a three-stage roller (20304) installed above and on both sides of the main core mold (20307); the imitation forming component (203) further comprises a two-stage roller (20302) located upstream of the three-stage roller (20304) and a one-stage roller (20301) located upstream of the two-stage roller (20302).

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