Three-dimensional woven double-station integrated automatic weaving equipment

Abstract

The application provides a three-dimensional woven double-station integrated automatic weaving equipment, which comprises a jacquard module and two stations below the jacquard module; the jacquard module comprises a jacquard machine and two split yarn ducts below the jacquard machine and arranged in a split manner; an eye plate is arranged at the bottom opening of each split yarn duct for passing yarn; in the scheme, double-channel split yarn is adopted, the passing yarn of the jacquard head is split to two stations, one jacquard head can control the warp yarns of two stations, and the number of passing yarns in the two channels can be changed according to different weaving requirements, so that the passing yarn resources of the jacquard head can be fully utilized. In the equipment, a multi-hole eye plate is adopted, two stations can independently select the eye plate suitable for the station according to requirements, the passing yarns in the split yarn channels are concentrated below the split yarn channels through the bundling function of the eye plate, and the passing yarns do not interfere with each other.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of composite material textile machinery, and particularly relates to a three-dimensional weaving double-station integrated automatic weaving equipment. BACKGROUND

[0002] Lightweight of aerospace components has become a trend in future development. The large weight of alloy components limits the thrust-to-weight ratio of aircraft, and composite materials are widely used in aerospace vehicle components due to their high specific strength, high specific stiffness and other advantages. Complex components such as variable cross-section pipe, special-shaped cross-section component and large thickness component are the focus of composite material weaving breakthrough, and in-depth study of the process and equipment of related components of rapid forming has far-reaching significance.

[0003] Three-dimensional woven fabric has good interlaminar performance, and three-dimensional weaving process has the advantages of strong designability, high automation degree and fast forming speed. Through designing different organizational structures, weaving paths and weaving methods, complex components of aerospace vehicles can be formed with high quality, and the design of automatic three-dimensional weaving equipment with high degree of automation and higher efficiency meets the demand of future development. SUMMARY

[0004] The purpose of the application is to solve the above problems, and the three-dimensional weaving double-station integrated automatic weaving equipment is provided, which aims to provide a three-dimensional weaving equipment with high degree of automation and higher efficiency.

[0005] To achieve the above purpose, the three-dimensional weaving double-station integrated automatic weaving equipment provided by the application has the technical scheme that:

[0006] A three-dimensional weaving double-station integrated automatic weaving equipment, comprising a jacquard module for intersecting and positioning warp yarns, and two stations located below the jacquard module; the jacquard module comprises a jacquard machine and two split yarn ducts located below the jacquard machine and arranged in a bifurcated manner, a through yarn connected with the jacquard machine is arranged in each split yarn duct; an eye plate is mounted at the bottom opening of each split yarn duct, a plurality of through holes are arranged on the eye plate, and each through hole is provided for a through yarn.

[0007] Beneficial effects: The three-dimensional weaving double-station integrated automatic weaving equipment provided by the application adopts double-channel split yarns, and the through yarns of the jacquard head are split to two stations. One jacquard head can control the warp yarns of two stations, and the number of through yarns in the two channels can be changed according to different weaving requirements, so as to realize full utilization of the through yarn resources of the jacquard head. In the equipment, a multi-hole eye plate is used, and two stations can independently select an eye plate suitable for the station according to requirements. Through the bunching function of the eye plate, the through yarns in the split yarn channel are concentrated below the split yarn channel, and the through yarns do not interfere with each other.

[0008] If the multi-hole flat screen is not set, the jacquard machine may affect the rest of the warp yarns that do not need to be hooked during the hooking process, and other weaving equipment may encounter the problem of redundant or insufficient harness yarns when weaving different numbers of preforms, which may cause the problem of waste of harness yarns of the jacquard head. The two problems are solved in the equipment.

[0009] Further, the two workstations below the jacquard module are respectively located below two separate yarn ducts, one of which is placed with a woven forming weaving device, and the other is placed with a profiled woven forming weaving device.

[0010] Further, the woven forming weaving device comprises a beating reed, a connecting rod beating module and a yarn separating rod; the connecting rod beating module is located between the yarn separating rod and the beating reed.

[0011] Further, the connecting rod beating module comprises a motor reducer assembly, a driving shaft, a connecting rod, a pulling rod and a pulling lever; one end of the pulling rod is hingedly connected to the bottom of the weft insertion connecting seat, and the other end is hingedly connected to the top of the pulling lever; the bottom of the pulling lever is hingedly connected to the inner wall of the base; one end of the connecting rod is hingedly connected to the pulling lever, and the other end is matched with the driving shaft; the hinged point of the connecting rod and the pulling lever is located below the hinged point of the pulling lever and the connecting rod; the part of the driving shaft passing through the connecting rod and the part of the output shaft of the motor reducer assembly are arranged in parallel but different shafts.

[0012] Further, the profiled woven forming weaving device comprises a lifting mechanism, a main core mold placing rack installed on the lifting mechanism and movable up and down, a detachable main core mold installed in the main core mold placing rack, a core mold motor driving the main core mold to rotate, and a three-stage roller installed above and on both sides of the main core mold; the profiled forming component further comprises a two-stage roller located upstream of the three-stage roller, and a one-stage roller located upstream of the two-stage roller.

[0013] Further, the one-stage roller comprises a one-stage horizontal roller arranged transversely, and a first pre-core mold arranged below the one-stage horizontal roller and matched with the one-stage horizontal roller; the two-stage roller comprises a two-stage horizontal roller arranged transversely and two two-stage inclined rollers arranged on both sides of the two-stage horizontal roller, and a second pre-core mold arranged below the two-stage roller and matched with the two-stage roller; the three-stage roller comprises a three-stage horizontal roller arranged transversely and two three-stage inclined rollers arranged on both sides of the three-stage horizontal roller.

[0014] Further, the axial direction of the two-stage horizontal roller intersects with the axial direction of the two-stage inclined roller to form a first obtuse angle, and the axial direction of the three-stage horizontal roller intersects with the axial direction of the three-stage inclined roller to form a second obtuse angle, and the second obtuse angle is greater than the first obtuse angle.

[0015] Further, the lifting mechanism comprises slide rails extending upward and downward on both sides of the main core mold placing rack, slide blocks installed on the slide rails, and a lifting platform connected with the slide blocks; both sides of the main core mold placing rack are provided with connecting shafts connected with the lifting platform, the slide blocks are lifted along the slide rails to drive the lifting platform and the main core mold placing rack to be lifted; a plurality of positioning holes are arranged on the slide rails from top to bottom, and the slide blocks are provided with detachable positioning bolts, the slide blocks are fixed on the slide rails by the positioning bolts when the slide blocks are moved to a certain position of the positioning holes.

[0016] Further, the connecting shafts comprise main core mold placing rack connecting shafts extending outward from the sides of the main core mold placing rack and core mold adjusting mechanism connecting shafts extending inward from the sides of the lifting platform, and the main core mold placing rack connecting shafts and the core mold adjusting mechanism connecting shafts are coaxially connected through a shaft coupling.

[0017] Further, the profiled forming component further comprises a step-off vehicle close to one end of the main core mold placing rack, and the step-off vehicle is used to carry the main core mold taken off from the main core mold placing rack. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure diagram of the whole structure of the three-dimensional woven double-station integrated automatic weaving equipment.

[0019] Figure 2 It is a perspective view of the jacquard module in the application.

[0020] Figure 3 It is a perspective view of the woven forming weaving device in the application.

[0021] Figure 4 It is a structural schematic view of the connecting rod beating-up module in the woven forming weaving device.

[0022] Figure 5 It is a structural view of the profiled woven forming weaving device from a first perspective.

[0023] Figure 6 It is a structural view of the profiled woven forming weaving device from a second perspective.

[0024] Figure 7 It is a structural view of the profiled woven forming weaving device from a third perspective.

[0025] Figure 8 It is a schematic view of the cooperation between the lifting platform, the slide block and the slide rail in the profiled woven forming weaving device. DETAILED DESCRIPTION

[0026] The present application will be further clarified by the following description and examples, which should be understood as being without limiting the scope of the present application. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0027] Please refer to Figure 1 and Figure 2 The present application discloses a three-dimensional woven double-station integrated automatic weaving equipment, which comprises a jacquard module 1 for intersecting and positioning warp yarns, and two stations below the jacquard module 1. The jacquard module comprises a jacquard machine 101 and two split yarn ducts 102 arranged below the jacquard machine and split, and each split yarn duct 102 is provided with a through wire 105 connected with the jacquard machine. A bottom opening of each split yarn duct 102 is provided with an eye plate 103, and the eye plate is provided with a plurality of through holes, each of which passes through a through wire 105. The through wires 105 are divided into two forming weaving areas through the split yarn ducts 102. During the splitting process, different numbers of through wires 105 can be split into the two split yarn ducts 102 according to the different actual process requirements of the two stations, so that the resources of the jacquard module can be fully utilized. When different numbers of through wires 105 are inserted into the two split yarn ducts 102, only the corresponding eye plate 103 needs to be replaced.

[0028] In the present embodiment, the two stations below the jacquard module 1 are respectively located below the two split yarn ducts 102, one of which is placed with a woven forming weaving device 2, and the other is placed with a profiled woven forming weaving device 3.

[0029] Please refer to Figure 3 The woven forming weaving device 2 comprises a woven forming weaving mechanism 21 and a plurality of straight line traction modules 22, and a traction frame platform 23. The woven forming weaving mechanism 21 comprises a beating-up reed 4201, a connecting rod beating-up module 202 and a yarn splitting rod 201, and the connecting rod beating-up module 202 is located between the yarn splitting rod 201 and the beating-up reed 203.

[0030] Please refer to Figure 4As shown, the connecting rod weft insertion module 202 includes a trunnion seat 4202, a slider 4203, a slide rail 4204, a tie rod 4205, a pin 4206, a connecting rod 4207, a drive shaft 4208, a pull rod 4209, a weft insertion drive motor 4210, a motor reducer assembly 4211, a reducer fixed shaft 4212, a hinge shaft 4213, a pull rod fixed bearing seat 4214, a fixed plate 4215, a drive shaft 4208, a connecting rod 4207, a tie rod 4205, and a pull rod 4209, all connected below the weft insertion reed 4201. The two ends of the tie rod 4205 are hinged to the top of the trunnion seat 4202 and the top of the pull rod 4209, respectively. The bottom of the trunnion seat 4202 is provided with a slider 4203, which is mounted on the slide rail 4204. The bottom of the pull rod 4209 is hinged to the inner wall of the base; one end of the connecting rod 4207 is hinged to the pull rod 4209, and the other end is engaged with the drive shaft 4208; the hinge point between the connecting rod 4207 and the pull rod 4209 is located below the hinge point between the pull rod 4205 and the connecting rod 4207; the portion of the drive shaft 4208 passing through the connecting rod 4207 and the portion of the drive shaft 4208 connecting to the output shaft of the motor reducer assembly form a "U"-shaped crank structure. The portion of the drive shaft 4208 connecting to the output shaft of the motor reducer assembly is parallel to, but not on, the portion of the drive shaft 4208 passing through the connecting rod 4207. This "U"-shaped crank structure causes the drive shaft to rotate, driving the connecting rod to reciprocate back and forth, thus causing the weft-beating reed to move back and forth towards or away from the yarn guide rod.

[0031] In the machine-woven forming weaving device 2, the warp yarns pass through the beat-up reed, are formed in front of the beat-up reed, and are then pulled by the multi-width straight traction module.

[0032] Please combine Figures 5 to 8 As shown, the contour weaving device 3 includes a lifting mechanism, a main core mold placement frame 20306 mounted on the lifting mechanism and movable up and down, a detachable main core mold 20307 mounted in the main core mold placement frame 20306, a core mold motor 20308 driving the main core mold 20307 to rotate, and a third-stage roller 20304 mounted above and on both sides of the main core mold 20307. The contour weaving device 3 also includes a second-stage roller 20302 located upstream of the third-stage roller 20304 and a first-stage roller 20301 located upstream of the second-stage roller 20302. The second-stage roller 20302 and the first-stage roller 20301 are located on a platform, which is independent of the core mold placement frame 20306.

[0033] The lifting mechanism comprises slide rails 203022 extending up and down on both sides of the main core mold placing rack 20306, slide blocks 203024 mounted on the slide rails, and a lifting platform 501 connected with the slide blocks 203024; both sides of the main core mold placing rack 20306 are provided with connecting shafts connected with the lifting platform 501, and the slide blocks are lifted along the slide rails to drive the lifting platform 501 and the main core mold placing rack 20306 to be lifted. A plurality of positioning holes are arranged on the slide rails 203022 from top to bottom, and the slide blocks 203024 are provided with detachable positioning bolts (not shown in the figure), the slide blocks 203024 are moved to a certain position of the positioning holes, and the slide blocks are fixed on the slide rails 203022 by the positioning bolts. The connecting shafts comprise the main core mold placing rack connecting shafts 203010 extending outward from the sides of the main core mold placing rack 20306 and the core mold adjusting mechanism connecting shafts 203018 extending inward from the sides of the lifting platform 501, and the main core mold placing rack connecting shafts 203010 and the core mold adjusting mechanism connecting shafts 203018 are coaxially connected through a shaft coupling 203014.

[0034] For the set of three rollings, the first roll 20301 includes a first lateral roll 203011, and a first front core mold 203012 is arranged below the first lateral roll 203011 and cooperates with the first lateral roll 203011; the second roll 20302 includes a second lateral roll 203021 and two second inclined rolls 203022 arranged on both sides of the second lateral roll 203021, and a second front core mold 203023 is arranged below the second roll 20302 and cooperates with the second roll 20302; the third roll 20304 includes a third lateral roll 203041 and two third inclined rolls 203042 arranged on both sides of the third lateral roll 203041. The second lateral roll 203021 and the second inclined roll 203022 are arranged at a first obtuse angle, and the third lateral roll 203041 and the third inclined roll 203042 are arranged at a second obtuse angle, and the second obtuse angle is greater than the first obtuse angle. The woven fabric is sequentially rolled through the first roll 20301, the second roll 20302, and the third roll 20304, and then tightly wound on the main core mold 20307 to complete the profiling weaving. Each roll in the third roll has a different rolling angle, and the rolling angle increases from the first roll to the third roll, so that the woven fabric can be tightly pressed on the main core mold 20307. The main core mold 20307 is driven by the core mold motor 20308 to rotate to curl the woven fabric to the required thickness. The profiling forming part 203 also includes a step-off vehicle 20305 arranged near one end of the main core mold placing rack 20306, and the step-off vehicle 20305 is used to carry the main core mold 20307 taken off from the main core mold placing rack. In the present forming equipment, three rolls are adopted, each roll has a different rolling angle and the rolling height of each roll is adjustable, and the setting of three rolls can reduce the pressure applied to the preform in each roll, reduce the displacement of the fibers in the preform, and reduce the damage of the profiling forming to the organizational structure of the preform, so that more sizes and more shapes of the main core mold can be adapted. In the present forming equipment, the main core mold adjusting mechanism is adopted to adjust the height and angle of the main core mold, such as controlling the movement of the main core mold placing rack 20306 by the up and down movement of the two side sliders 203024, or by the height difference of the two side sliders 203024 of the main core mold adjusting mechanism, so that the main core mold placing rack 20306 has a certain angle with the horizontal direction, and the main core mold adjusting mechanism cooperates with the three rolls to form a preform with multiple shapes and multiple sizes.

Claims

1. A three-dimensional weaving dual-station integrated automated weaving equipment, characterized in that, Includes a jacquard module (1) for positioning the warp yarns and two workstations located below the jacquard module (1); The jacquard module includes a jacquard machine (101) and two branching pipes (102) located below the jacquard machine. Each branching pipe (102) is provided with a through wire (105) connected to the jacquard machine. A mesh plate (103) is installed at the bottom opening of each branching pipe (102). The mesh plate is provided with several through holes, and each through hole allows a through wire (105) to pass through. The two workstations below the jacquard module (1) are located below the two yarn splitting pipes (102), with one workstation housing the machine-woven forming weaving device (2) and the other workstation housing the contour machine-woven forming weaving device (3). The contour weaving device (3) includes a lifting mechanism, a main core mold placement frame (20306) mounted on the lifting mechanism and movable up and down, a detachable main core mold (20307) mounted in the main core mold placement frame (20306), a core mold motor (20308) that drives the main core mold (20307) to rotate, and a third-stage roller (20304) mounted above and on both sides of the main core mold (20307); the contour forming component (203) also includes a second-stage roller (20302) located upstream of the third-stage roller (20304) and a first-stage roller (20301) located upstream of the second-stage roller (20302). The first-stage rolling mill (20301) includes a transversely arranged first-stage cross roll (203011), and a first front mandrel (203012) that cooperates with the first-stage cross roll (203011) is provided below the first-stage cross roll (203011). The second-stage rolling mill (20302) includes a transversely arranged second-stage cross roll (203021) and two second-stage skew rolls located on both sides of the second-stage cross roll (203021). A second front mandrel (203023) that cooperates with the second-stage rolling mill (20302) is provided below the second-stage rolling mill (20302). The third-stage rolling mill (20304) includes a transversely arranged third-stage cross roll (203041) and two third-stage skew rolls (203042) located on both sides of the third-stage cross roll (203041).

2. The three-dimensional weaving dual-station integrated automated weaving equipment according to claim 1, characterized in that, The machine-woven forming weaving device (2) includes a weft-beating reed (4201), a connecting rod weft-beating module (202), and a yarn-separating rod (201); the connecting rod weft-beating module (202) is located between the yarn-separating rod (201) and the weft-beating reed (4201).

3. The three-dimensional weaving dual-station integrated automated weaving equipment according to claim 1, characterized in that, The connecting rod weft insertion module (202) includes a motor reducer assembly, a drive shaft (4208), a connecting rod (4207), a tie rod (4205), and a pull rod (4209); one end of the tie rod (4205) is hinged to the bottom of the weft insertion connector (4101), and the other end is hinged to the top of the pull rod (4209); the bottom of the pull rod (4209) is hinged to the inner wall of the base; one end of the connecting rod (4207) is hinged to the pull rod (4209), and the other end is engaged with the drive shaft (4208); The hinge point of the connecting rod (4207) and the pull rod (4209) is located below the hinge point of the tie rod (4205) and the pull rod (4209); the part of the drive shaft (4208) that passes through the connecting rod (4207) and the part of the drive shaft (4208) that connects to the output shaft of the motor reducer assembly form a "U" shaped crank structure. The part of the drive shaft (4208) that connects to the output shaft of the motor reducer assembly and the part of the drive shaft (4208) that passes through the connecting rod (4207) are parallel but not on the same axis.

4. The three-dimensional weaving dual-station integrated automated weaving equipment according to claim 1, characterized in that, The axial direction of the secondary transverse roll (203021) intersects with the axial direction of the secondary skew roll to form a first obtuse angle, and the axial direction of the tertiary transverse roll (203041) intersects with the axial direction of the tertiary skew roll (203042) to form a second obtuse angle, and the second angle is greater than the first angle.

5. The three-dimensional weaving dual-station integrated automated weaving equipment according to claim 1, characterized in that, The lifting mechanism includes slide rails (203022) located on both sides of the main core mold placement frame (20306) and extending vertically, a slider (203024) mounted on the slide rails, and a lifting platform (501) connected to the slider; the main core mold placement frame (20306) has connecting shafts on both sides that are connected to the lifting platform (501), and the slider moves up and down along the slide rails to drive the lifting platform (501) and the main core mold placement frame (20306) to move up and down; the slide rails (203022) have several positioning holes from top to bottom, and the slider (203024) has detachable positioning bolts. When the slider moves to the position of a certain positioning hole, the positioning bolts fix the slider to the slide rail.

6. The three-dimensional weaving dual-station integrated automated weaving equipment according to claim 5, characterized in that, The connecting shaft includes a main core mold placement frame connecting shaft extending laterally outward from the self-propelled core mold placement frame (20306) and a core mold adjustment mechanism connecting shaft extending laterally inward from the self-lifting platform (501). The main core mold placement frame connecting shaft and the core mold adjustment mechanism connecting shaft are coaxially connected by a coupling.

7. The three-dimensional weaving dual-station integrated automated weaving equipment according to claim 6, characterized in that, The morphing forming component (203) also includes a stepping car (20305) near one end of the master mold placement frame (20306), which is used to carry the master mold removed from the master mold placement frame.

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