Screw-in type three-dimensional fabric warp yarn automatic layering device and layering method

Abstract

The invention discloses a screw-in type three-dimensional fabric warp yarn automatic layering device and a layering method. The layering device comprises a frame and a screw-in type layering mechanism, the screw-in type layering mechanism is arranged on the frame, layering rods are controlled by a horizontal guide rail and a rotating motor which are arranged on the screw-in type layering mechanism to perform screw-in and screw-out movement in a warp layer, and a vertical guide rail drives two rotating rods to move in the vertical direction and the horizontal direction. The air cylinder drives one rotating rod to do reciprocating motion relative to the other rotating rod in the vertical direction, the rotating rods divide warp yarn into two parts after the warp yarn layer is inserted, an opening is formed, and automatic layering of the multi-layer warp yarn of the three-dimensional fabric is achieved. Compared with an insertion type layering rod, by using the rotating rod, the layering effect is better, through combined use of an alternate layering structure, the operation space is saved, and the problem of the occupied area of equipment can be solved.

Description

Technical Field

[0001] This invention belongs to the field of automated three-dimensional fabric forming technology, specifically relating to an automatic layering device and layering method for multi-layer warp yarns in three-dimensional fabrics. Background Technology

[0002] Three-dimensional woven fabrics contain at least two systems of yarns. The warp yarns constituting the three-dimensional woven fabric are arranged in a multi-layered structure in space, interlacing with the weft yarns or yarns in other directions to form an integral structure. During the production of three-dimensional fabrics, the warp layers are arranged layer by layer in the thickness direction of the fabric. Multiple layers of warp yarns converge at the weave point. The yarns are tightly packed together and cannot naturally form an effective opening, so manual or equipment-based layering of the fabric is required. In addition, the requirement for zero-tension production of warp yarns in three-dimensional fabrics exacerbates the difficulty of warp layering.

[0003] Common fabric layering techniques are mostly used in the production of two-dimensional fabrics or in the layering of three-dimensional warp yarns under tension. Chinese patent publication CN 114457485A discloses a shedding device suitable for the production of two-dimensional planar fabrics; Chinese patent publication CN102493107A discloses a weaving method for warp layering, which reduces warp friction loss in the heald eye area by adding two sets of back beams to the loom, but this method is also only suitable for the production of two-dimensional fabrics; Chinese patent publication CN215800177U discloses a reciprocating core loom cam shedding mechanism, which is also only suitable for the production of two-dimensional planar fabrics; Chinese patent publication CN 114855330A discloses a shedding mechanism and loom, but this shedding mechanism consists of multiple heald frames and is not suitable for the production of multi-layer three-dimensional woven fabrics. Patent CN104499163B discloses an opening device for forming 2.5D structure three-dimensional fabrics. This device works when the warp yarns are under tension, and the device moves the layering blocks to form an effective opening. However, this device is not suitable for production when the warp yarns are under zero tension. Patent CN100408737C discloses a three-dimensional fabric weaving machine, which also requires the warp yarns to be under tension, making it unsuitable for zero-tension production. Patent CN116163044B discloses a three-dimensional woven multi-layer warp layering device. This device uses two layering rods to form an opening in the tensioned yarn layer, but it is also not suitable for the production of three-dimensional fabrics with zero warp tension.

[0004] Therefore, there is a need for a device suitable for the automatic layering of multi-layer warp yarns in three-dimensional fabrics under zero warp tension. Summary of the Invention

[0005] To address the issue that existing automatic fabric layering devices can only be used for the production of two-dimensional or three-dimensional fabrics under warp tension, but not for the production of multi-layer three-dimensional fabrics under zero tension, this invention provides a screw-in type automatic warp layering device and method for three-dimensional fabrics. The device controls the screwing-in and screwing-out movement of the layering rod within the warp layer via a horizontal guide rail and a rotary motor. A vertical guide rail and a cylinder drive the vertical movement of the rotating rod, while the horizontal guide rail drives the horizontal movement of the rotating rod, causing the layering rod to perform a wave-like motion in the horizontal direction. After insertion into the warp layer, the rotating rod divides the warp into two parts, forming an opening, thus achieving automatic layering of multi-layer warp yarns in three-dimensional fabrics.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0007] A screw-in type three-dimensional fabric warp yarn automatic layering device includes:

[0008] frame;

[0009] The first screw-in layering mechanism is located on the rear side of the frame;

[0010] The second screw-in layering mechanism is located on the front side of the frame;

[0011] The first screw-in layered mechanism includes a horizontal guide rail I, a horizontal guide rail II, a vertical guide rail I, a rotating rod I, a rotating rod II, a rotating shaft I, a rotary motor I, a stepped base I, a stepped base II, and a cylinder I.

[0012] The horizontal guide rails I and II are respectively located on the upper and lower sides of the rear end of the frame, with one end of the horizontal guide rail tightly attached to the right-angle edge of one side of the frame and the other end extending to the middle of the frame; the rotating shaft I and the rotating motor I are respectively located on the ends of the horizontal guide rails I and II located in the middle of the frame, and the horizontal guide rails can drive the rotating motor and the rotating shaft to move back and forth synchronously; the vertical guide rail I is located between the rotating shaft I and the rotating motor I, with one end connected to the horizontal guide rail II through the rotating shaft I, and the other end connected to the rotating motor I and the horizontal guide rail I through the connecting piece I, and the vertical guide rail can be rotated circumferentially by the rotating motor;

[0013] The stepped base I and stepped base II are both mounted on the slider of the vertical guide rail I and are fixedly connected to the guide rail chain, allowing them to move up and down based on the vertical guide rail. One end of the rotating rod I and rotating rod II are respectively connected to the stepped base I and stepped base II, and they can move up and down along the vertical guide rail with the stepped base. The other end of the two rotating rods is screwed into the warp layer, where they perform screwing-in and screwing-out movements to separate the warp layers.

[0014] The cylinder I is mounted on the vertical guide rail I, and the cylinder extension rod is connected to the stepped base. The extension and retraction of the cylinder causes the stepped base and the rotating rod to move up and down relative to the stepped base.

[0015] The second screw-in layered mechanism includes a horizontal guide rail Ⅲ, a horizontal guide rail Ⅵ, a vertical guide rail Ⅱ, a rotating rod Ⅲ, a rotating rod Ⅵ, a rotating shaft Ⅱ, a rotary motor Ⅱ, a stepped base Ⅲ, a stepped base Ⅵ, and a cylinder Ⅱ;

[0016] The horizontal guide rails III and VI are respectively located on the upper and lower sides of the front end of the frame, with one end of the horizontal guide rail tightly attached to the right-angle edge of the other side of the frame and the other end extending to the middle of the frame; the rotating shaft II and the rotating motor II are respectively located on the ends of the horizontal guide rails III and VI located at the edge of the frame, and the horizontal guide rails can drive the rotating motor and the rotating shaft to move back and forth synchronously; the vertical guide rail II is located between the rotating shaft ⅠⅠ and the rotating motor ⅠⅠ, with one end connected to the horizontal guide rail VI through the rotating shaft II, and the other end connected to the rotating motor II and the horizontal guide rail III through the connecting piece II, and the vertical guide rail can be rotated circumferentially by the rotating motor;

[0017] The stepped bases III and VI are both mounted on the slider of the vertical guide rail II and are fixedly connected to the guide rail chain, allowing them to move up and down based on the vertical guide rail. One end of the rotating rods III and VI is connected to the stepped bases III and VI respectively, allowing them to move up and down along the vertical guide rail with the stepped bases. The other ends of the two rotating rods are screwed into the warp layer, where they perform screwing-in and screwing-out movements to separate the warp layers.

[0018] The cylinder II is mounted on the vertical guide rail II, and the cylinder extension rod is connected to the stepped base. The extension and retraction of the cylinder causes the stepped base and the rotating rod to move up and down relative to the stepped base.

[0019] All horizontal guide rails are of the same length and are half the length of the frame;

[0020] The second screw-in layering mechanism has the same structural connections as the first screw-in layering mechanism, and together with the first screw-in layering mechanism, they form a two-segment screw-in layering structure.

[0021] Furthermore, the frame structure is welded from square steel to ensure that the horizontal steel pipes are distributed in parallel, thus ensuring the stability and reliability of the structure. The length and height of the frame are determined according to the layering distance and product height, as long as they meet production requirements.

[0022] Furthermore, the frame is divided into n regions according to the layering distance. The number of regions is determined based on the actual layering effect. The layering device has n screw-in layering structures, where n is greater than 2. Each screw-in layering structure is connected to the first screw-in layering mechanism, and adjacent screw-in layering structures are alternately arranged in the frame. Steel pipes are welded along the width of the frame to install the screw-in layering structures. The warp yarn of the screw-in three-dimensional fabric warp layering device can be composed of n screw-in layering mechanisms, which perform n-1 transfer openings to transfer the weaving opening at the root of the heddle to the weaving area, thereby achieving zero-tension layering.

[0023] Furthermore, the present invention also provides a method for automatic layering of warp yarns in a three-dimensional fabric using the above-described device, comprising the following steps:

[0024] (1) The rotating ends of the two rotating rods in the first screw-in layering mechanism in the middle of the frame are located at the entrance of the warp layer in the heddle area on the back of the frame. The rotating rods are controlled to screw in and out in the warp layer by the horizontal guide rail and the rotating motor I. The vertical guide rail I drives the vertical and horizontal movement of the two rotating rods. The two rotating rods in the first screw-in layering mechanism move forward in the warp layer in a straight line and a wave-like motion, transferring the warp opening from the heddle area on the back of the frame to the middle of the frame and keeping it open.

[0025] Specifically, the vertical guide rail I drives the movement of the two rotating rods as follows: the cylinder I drives the rotating rod II to reciprocate in the vertical direction relative to the rotating rod I; the rotating rod I makes a small-amplitude wave-shaped movement in the horizontal direction; the rotating rod II makes a large-amplitude wave-shaped movement in the horizontal direction; after the warp layer is inserted, the two rotating rods divide the warp into two parts to form an opening, thereby realizing the automatic layering of the multi-layer warp of the three-dimensional fabric.

[0026] In the first screw-in layering mechanism, the rotary motor I, the rotating shaft I, and the vertical guide rail I are carried forward from the middle of the frame to the rear end of the frame via the upper and lower horizontal guide rails. The rotary motor I rotates clockwise, driving the stepped base and the rotating rod to rotate. The two movements work together to control the front end of the rotating rod to insert into the warp layer in a straight line at the rear end of the frame. The vertical guide rail I and the cylinder I drive the vertical movement of the rotating rod, while the horizontal guide rail drives the horizontal movement of the rotating rod, causing the rotating rod to make a wave-like movement in the horizontal direction.

[0027] (2) In the first screw-in layering mechanism, the rotating rod and the three-dimensional fabric multi-layer warp yarns after the opening are controlled by the horizontal guide rail carrying the rotating motor I, the rotating shaft I and the vertical guide rail I to make a backward movement. The rotating rod I makes a small reciprocating movement in the vertical direction under the control of the stepped base and the vertical guide rail I. At the same time, the horizontal guide rail controls the rotating rod I to make a straight movement. Therefore, the rotating rod I makes a small wave-shaped movement from the rear end area of ​​the frame to the middle area of ​​the frame. The rotating rod II makes a large reciprocating movement in the vertical direction under the control of the stepped base and the cylinder I. At the same time, the horizontal guide rail controls the rotating rod II to make a straight movement. Therefore, the rotating rod II makes a large wave-shaped movement from the rear end area of ​​the frame to the middle area of ​​the frame until the rotating rod moves to the middle of the frame and transfers the opening from the rear end of the frame to the middle of the frame.

[0028] The opening size of the warp layer formed in the middle of the frame is 0.3 to 0.6 m;

[0029] (3) The rotating rod in the first screw-in layering mechanism lifts the opening formed by the warp yarn in the middle of the frame. The rotating rod in the second screw-in layering mechanism, under the control of its upper and lower horizontal guide rails and the rotating motor II, passes into the opening of the warp yarn in a straight line. The rotating rod then transmits the opening from the middle of the frame to the front end of the frame in a wave-like motion.

[0030] Specifically, in the second screw-in layering mechanism on the front side of the frame, the two rotating rods are controlled by their upper and lower horizontal guide rails, rotary motor II and vertical guide rail II. They rotate in a straight line into the warp layer in the opening formed by the two rotating rods of the first screw-in layering mechanism in the middle of the frame. The entire second screw-in layering mechanism moves in coordination from the front end of the frame to the middle of the frame to complete the screw-in action. The two rotating rods in the second screw-in layering mechanism move forward in the warp layer with linear and wave-like movements, transferring the warp opening from the middle of the frame to the front of the frame, thereby transferring the fabric to the effective weaving area.

[0031] (4) In the second screw-in layering mechanism, the rotating motor II, rotating shaft II and vertical guide rail II are carried by the horizontal guide rail to control the rotating rod and the three-dimensional fabric multi-layer warp yarns after the opening to move backward in the area from the middle of the frame to the front of the frame. In the second screw-in layering mechanism, the rotating rod III moves in a small amplitude reciprocating motion in the vertical direction under the control of the stepped base and the vertical guide rail II. At the same time, the horizontal guide rail controls the rotating rod III to move in a straight line. Therefore, the rotating rod III moves in a small amplitude wave-like motion in the area from the middle of the frame to the front of the frame. The rotating rod VI moves in a large amplitude reciprocating motion in the vertical direction under the control of the stepped base and the cylinder. At the same time, the horizontal guide rail controls the rotating rod VI to move in a straight line. Therefore, the rotating rod VI moves in a large amplitude wave-like motion in the area from the middle of the frame to the front of the frame until the rotating rod moves to the front of the frame, transferring the opening from the middle of the frame to the front of the frame, and completing the opening of the warp layer.

[0032] (5) All mechanisms in the frame move in opposite directions, and the rotating rods in the first and second screw-in layering mechanisms rotate out of the warp layer in sequence.

[0033] (6) In the first screw-in layering mechanism, the rotating rod moves vertically along the vertical direction to the next layering height under the control of the stepped base and cylinder I;

[0034] (7) Repeat steps (1) to (6) until all warp layers are opened.

[0035] Furthermore, each rotating rod moves forward and backward at a speed of 0-2 m / s on the horizontal guide rail in the corresponding layered structure, and each stepped base moves upward and downward at a speed of 0-2 m / s on the vertical guide rail in the corresponding layered structure. Each rotating motor rotates at a speed of 0-60° / s, controlling each rotating rod to rotate in and out of the warp layer in a straight line at a speed of 0-0.5 m / s.

[0036] Furthermore, the amplitude of each vertical guide rail in the layered motion is 0.1 to 0.15 m / s, and the amplitude of each cylinder is 0.3 to 0.6 m / s.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) The three-dimensional fabric warp layering device of the present invention controls the winding and unwinding motion of the layering rod in the warp layer by means of a horizontal guide rail and a rotary motor; the vertical guide rail, cylinder and horizontal guide rail work together to control the layering rod to move in a wave-like motion in the horizontal direction. After winding into the warp layer, the rotating rod divides the warp into two parts to form an opening, thereby realizing automatic layering of multiple warp layers in three-dimensional fabric.

[0039] (2) The three-dimensional fabric multi-layer warp automatic layering method of the present invention layers the warp layers one by one, specifically: ① The first screw-in layering mechanism controls two rotating rods to screw into the warp layer in a straight line; ② In the first screw-in layering mechanism, the rotating rods are controlled by the vertical guide rail, the cylinder and the horizontal guide rail to make a wave-shaped motion; ③ The first screw-in layering mechanism transmits the opening to the second screw-in layering mechanism; ④ In the second screw-in layering mechanism, the rotating rods are controlled by the vertical guide rail, the cylinder and the horizontal guide rail to make a wave-shaped motion; ⑥ Through multiple opening transmissions, the opening required for weaving is formed, realizing the automated continuous production of three-dimensional fabric.

[0040] (3) Compared with the use of insert-type layering rods, the present invention achieves better layering effect through the use of rotating rods, and saves working space through the combination of alternating layering structures, thus solving the problem of equipment floor space. Attached Figure Description

[0041] Figure 1This is a schematic diagram of the structure of the spiral-entry three-dimensional fabric warp automatic layering device described in this invention.

[0042] Figure 2 This is a schematic diagram of the integrated structure of the cylinder and vertical guide rail of the first screw-in layered mechanism of the present invention.

[0043] Figure 3 This is a schematic diagram of the three positions A, B, and C of the rotating rod in the frame described in the embodiment of the present invention.

[0044] Figure 4 This is a schematic diagram of the process by which the first spiral-in layering mechanism of the present invention spirals into the warp layer along a straight line on side A.

[0045] Figure 5 This is a schematic diagram showing the end of the first spiral-entry layering mechanism of the present invention spiraling into the warp layer along a straight line on side A.

[0046] Figure 6 This is a schematic diagram of the process of the vertical guide rail and the cylinder controlling the opening action of the rotating rod when the first screw-in layering mechanism moves from side A to side B in an embodiment of the present invention.

[0047] Figure 7 This is a schematic diagram of the process of the vertical guide rail and the cylinder controlling the closing action of the rotating rod when the first screw-in layering mechanism moves from side A to side B in an embodiment of the present invention.

[0048] Figure 8 This is a schematic diagram of the first screw-in layering mechanism in an embodiment of the present invention, showing the final state of the opening being transferred from side A to side B.

[0049] Figure 9 This is a schematic diagram illustrating the process of the second screw-in layering mechanism being inserted into the first screw-in layering mechanism along a straight line on side B to form an opening, according to an embodiment of the present invention.

[0050] Figure 10 This is a schematic diagram showing the end of the second screw-in layering mechanism being inserted into the opening formed by the first screw-in layering mechanism along a straight line on side B, according to an embodiment of the present invention.

[0051] Figure 11 This is a schematic diagram of the process of the vertical guide rail and the cylinder controlling the opening action of the rotating rod when the second screw-in layering mechanism in the embodiment of the present invention moves from side B to side C.

[0052] Figure 12 This is a schematic diagram of the process of the vertical guide rail and the cylinder controlling the closing action of the rotating rod when the second screw-in layering mechanism moves from side B to side C in an embodiment of the present invention.

[0053] Figure 13 This is a schematic diagram of the second screw-in layering mechanism in an embodiment of the present invention, showing the final state of the opening being transferred from side B to side C.

[0054] Figure 14 This is a schematic diagram of the motion state of the two rotating rods in the first and second screw-in layering mechanisms of the present invention during the layering process.

[0055] The components are: 1. Frame, 2. Horizontal guide rail I, 3. Rotary motor I, 4. Connector I, 5. Vertical guide rail I, 6. Stepped base I, 7. Stepped base II, 8. Rotating shaft I, 9. Horizontal guide rail II, 10.1 Rotating rod I, 10.2 Rotating rod II, 11. Rotary motor II, 12. Horizontal guide rail III, 13. Connector II, 14. Vertical guide rail II, 15. Stepped base III, 16. Stepped base VI, 17. Rotating shaft II, 18. Horizontal guide rail VI, 19.1 Rotating rod III, 19.2 Rotating rod VI, 20. Cylinder I, 21. Cylinder II. Detailed Implementation

[0056] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0057] A screw-in type three-dimensional fabric warp automatic layering device, such as Figure 1-3 As shown, it includes:

[0058] Framework 1;

[0059] The first screw-in layering mechanism is located on the rear side of frame 1;

[0060] The second screw-in layering mechanism is located on the front side of frame 1;

[0061] The first screw-in layered mechanism includes horizontal guide rail I2, horizontal guide rail II9, vertical guide rail I5, rotating rod I10-1, rotating rod II10-2, rotating shaft I8, rotating motor I3, stepped base I6, stepped base II7 and cylinder I20.

[0062] The horizontal guide rails I and II are respectively located on the upper and lower sides of the rear end of the frame, with one end of the horizontal guide rail tightly attached to the right-angle edge of one side of the frame and the other end extending to the middle of the frame; the rotating shaft I and the rotating motor I are respectively located on the ends of the horizontal guide rails I and II located in the middle of the frame, and the horizontal guide rails can drive the rotating motor and the rotating shaft to move back and forth synchronously; the vertical guide rail I is located between the rotating shaft I and the rotating motor I, with one end connected to the horizontal guide rail II through the rotating shaft I, and the other end connected to the rotating motor I and the horizontal guide rail I through the connecting piece I, and the vertical guide rail can be rotated circumferentially by the rotating motor;

[0063] The stepped base I and stepped base II are both mounted on the slider of the vertical guide rail I and are fixedly connected to the guide rail chain, allowing them to move up and down based on the vertical guide rail. One end of the rotating rod I and rotating rod II are respectively connected to the stepped base I and stepped base II, and they can move up and down along the vertical guide rail with the stepped base. The other end of the two rotating rods is screwed into the warp layer, where they perform screwing-in and screwing-out movements to separate the warp layers.

[0064] The cylinder I is mounted on the vertical guide rail I, and the cylinder extension rod is connected to the stepped base. The extension and retraction of the cylinder causes the stepped base and the rotating rod to move up and down relative to the stepped base.

[0065] The second screw-in layered mechanism includes horizontal guide rail Ⅲ12, horizontal guide rail Ⅵ18, vertical guide rail Ⅱ14, rotating rod Ⅲ19-1, rotating rod Ⅵ19-2, rotating shaft Ⅱ17, rotating motor Ⅱ11, stepped base Ⅲ15, stepped base Ⅵ16 and cylinder Ⅱ21;

[0066] The horizontal guide rails III and VI are respectively located on the upper and lower sides of the front end of the frame, with one end of the horizontal guide rail tightly attached to the right-angle edge of the other side of the frame and the other end extending to the middle of the frame; the rotating shaft II and the rotating motor II are respectively located on the ends of the horizontal guide rails III and VI located at the edge of the frame, and the horizontal guide rails can drive the rotating motor and the rotating shaft to move back and forth synchronously; the vertical guide rail II is located between the rotating shaft ⅠⅠ and the rotating motor ⅠⅠ, with one end connected to the horizontal guide rail VI through the rotating shaft II, and the other end connected to the rotating motor II and the horizontal guide rail III through the connecting piece II, and the vertical guide rail can be rotated circumferentially by the rotating motor;

[0067] The stepped bases III and VI are both mounted on the slider of the vertical guide rail II and are fixedly connected to the guide rail chain, allowing them to move up and down based on the vertical guide rail. One end of the rotating rods III and VI is connected to the stepped bases III and VI respectively, allowing them to move up and down along the vertical guide rail with the stepped bases. The other ends of the two rotating rods are screwed into the warp layer, where they perform screwing-in and screwing-out movements to separate the warp layers.

[0068] The cylinder II is mounted on the vertical guide rail II, and the cylinder extension rod is connected to the stepped base. The extension and retraction of the cylinder causes the stepped base and the rotating rod to move up and down relative to the stepped base.

[0069] All horizontal guide rails are of the same length and are half the length of the frame;

[0070] The second screw-in layering mechanism has the same structural connections as the first screw-in layering mechanism, and together with the first screw-in layering mechanism, they form a two-segment screw-in layering structure.

[0071] Furthermore, the frame structure is welded from square steel to ensure that the horizontal steel pipes are distributed in parallel, thus ensuring the stability and reliability of the structure. The length and height of the frame are determined according to the layering distance and product height, as long as they meet production requirements.

[0072] Furthermore, the frame is divided into n regions according to the layering distance. The number of regions is determined based on the actual layering effect. The layering device has n screw-in layering structures, where n is greater than 2. Each screw-in layering structure is connected to the first screw-in layering mechanism, and adjacent screw-in layering structures are alternately arranged in the frame. Steel pipes are welded along the width of the frame to install the screw-in layering structures. The warp yarn of the screw-in three-dimensional fabric warp layering device can be composed of n screw-in layering mechanisms, which perform n-1 transfer openings to transfer the weaving opening at the root of the heddle to the weaving area, thereby achieving zero-tension layering.

[0073] Furthermore, the present invention also provides a method for automatic layering of warp yarns in a three-dimensional fabric using the above-described device, comprising the following steps:

[0074] The spiral-insertion three-dimensional fabric warp layering method of this embodiment includes:

[0075] In the area from side B to side A of the frame, rotating rods I and II in the first screw-in layering mechanism perform screw-in actions. Horizontal guide rails I and II control the forward and backward distances of vertical guide rail I through servo motors, and can drive the movement of vertical guide rail I according to preset distance and speed. The rotation speed and time of rotary motor I control the rotation angle of vertical guide rail I. The vertical guide rail controls the up and down movement of trapezoidal bases I and II through servo motors. Through the coordinated control of horizontal guide rails, rotary motors and vertical guide rails, rotating rods I and II can rotate in a straight line at different heights on side A of the frame and enter the warp layer.

[0076] The length of the horizontal moving guide rail is 1.5-3m. The rotating rod moves forward and backward on the horizontal guide rail at a speed of 0-2m / s. The length of the vertical guide rail is 1.5-3m. The stepped base moves up and down on the vertical guide rail at a speed of 0-2m / s. The rotation speed of the rotary motor is 0-60° / s. The rotating rods I and II are controlled to rotate in and out of the warp layer in a straight line at a speed of 0-0.5m / s.

[0077] On frame A side, after the rotating rods I and II in the first screw-in layering mechanism are completely screwed into the warp layer, the warp layer is separated into layers with zero tension.

[0078] In the region from side A to side B of the frame, in the first screw-in layered mechanism, rotating rod I, under the control of stepped base I and vertical guide rail I, makes a small-amplitude reciprocating motion in the vertical direction. At the same time, horizontal guide rails I and II control rotating rod I to make linear motion. Therefore, rotating rod I makes a small-amplitude wavy motion in the region from side A to side B of the frame. Rotating rod II, under the control of stepped base II and cylinder, makes a large-amplitude reciprocating motion in the vertical direction. At the same time, horizontal guide rails I and II control rotating rod II to make linear motion. Therefore, rotating rod II makes a large-amplitude wavy motion in the region from side A to side B of the frame. Until rotating rods I and II move to side B of the frame, the opening is transferred from side A to side B of the frame.

[0079] The vertical guide rail has an amplitude of 0.1-0.15 m / s during the layered motion; the cylinder has an amplitude of 0.3-0.6 m / s; and the opening size formed on side B of the frame is 0.3-0.6 m.

[0080] On frame B side, the rotating rods I and II of the first screw-in layering mechanism maintain the formed opening. In the second screw-in layering mechanism, the rotating rods III and VI rotate in a straight line in the formed opening and enter the warp layer through the coordinated control of the horizontal guide rails III and VI, the rotary motor II and the vertical guide rail II. The entire second screw-in layering mechanism moves in coordination from frame C side to frame B side to complete the screw-in action.

[0081] In the region from side B to side C of the frame, in the second screw-in layered mechanism, the rotating rod III, under the control of the stepped base III and the vertical guide rail II, makes a small-amplitude reciprocating motion in the vertical direction. At the same time, the horizontal guide rails III and VI control the rotating rod III to make a linear motion. Therefore, the rotating rod III makes a small-amplitude wavy motion in the region from side B to side C of the frame. The rotating rod VI, under the control of the stepped base VI and the cylinder, makes a large-amplitude reciprocating motion in the vertical direction. At the same time, the horizontal guide rails III and VI control the rotating rod VI to make a linear motion. Therefore, the rotating rod VI makes a large-amplitude wavy motion in the region from side A to side B of the frame. Until the rotating rods III and VI move to the side B of the frame, the opening is transferred from the side A of the frame to the side B of the frame.

[0082] Complete the opening action of the yarn layer;

[0083] All mechanisms in the frame move in opposite directions, and the first and second spiral-entry layering mechanisms withdraw from the warp layer;

[0084] In the first screw-in layering mechanism, the vertical guide rail rises or falls, and the above operation is repeated in the new position until all warp layers are layered.

[0085] Example 1

[0086] This embodiment describes the multi-layer warp layering process of a three-dimensional fabric, using a spiral-insertion three-dimensional fabric warp layering device. The produced three-dimensional fabric is woven using carbon fiber, with 8 layers. The horizontal guide rail is 1.5m long, the vertical guide rail is 1.8m long, and the rotating rod is 1m long. Since the movements of each component of the layering mechanism are repetitive, this embodiment only describes the operation of the device during the first layer layering. The operating parameters of the layering device are shown in Table 1.

[0087] Table 1 Parameters of Layered Equipment

[0088]

[0089]

[0090] The specific steps of the automatic layering method for warp yarns in a spiral-inserted three-dimensional fabric described in this embodiment are as follows:

[0091] Steps for layering the first warp layer:

[0092] ① Set the operating parameters of the layering equipment: the horizontal running distance of zone 1 is 1.5m, the horizontal running distance of zone 2 is 1.5m, the horizontal running speed is 0.5m / s, the vertical amplitude of rotating rods I and III is 0.1m, and the vertical running speed is 0.2m / s. Start the equipment and set the initial position on the equipment. The initial position is the vertical and horizontal position of the first warp layer layer.

[0093] ② Operating Equipment: From side B to side A of the frame, in the first screw-in layering mechanism, horizontal guide rails I and II move at a constant speed of 0.5 m / s from side B to side A of the frame. Rotary motor I rotates at a variable angular velocity of arccos(cos A-0.5)° / s. Rotating rods I and II rotate in a straight line on side A of the frame to enter the first layer. (See...) Figure 4 As shown.

[0094] ③ From frame A to frame B, in the first screw-in layering mechanism, rotating rod I, driven by vertical guide rail I, reciprocates vertically at a speed of 0.2 m / s and an amplitude of 0.1 m. Rotating rod II, driven by a cylinder, reciprocates vertically at a frequency of 1 time / s and an amplitude of 0.6 m. Simultaneously, horizontal guide rails I and II move uniformly from frame A to frame B at a speed of 0.5 m / s. This causes rotating rod I to perform a wave-like motion with an amplitude of 0.1 m, and rotating rod II to perform a wave-like motion with an amplitude of 0.6 m. Through their relative up-and-down reciprocating motions, the two rotating rods form an opening in the zero-tension warp layer and transmit the opening from frame A to frame B. (See...) Figure 6 and Figure 7 As shown.

[0095] ④ Frame B side. In the first screw-in layered mechanism, rotating rods I and II move in a wave-like pattern to frame B side, forming an opening of 0.7m, see... Figure 8 As shown.

[0096] ⑤ From side C to side B of the frame, in the second screw-in layered mechanism, horizontal guide rails III and VI move uniformly from side C to side B at a speed of 0.5 m / s. Rotary motor II rotates at a variable angular velocity arccos(cos A-0.5)° / s. Rotating rods III and VI rotate linearly into the opening already formed on side B of the frame. (See...) Figure 9 As shown; see after fully entering. Figure 10 As shown.

[0097] ⑥ From frame B to frame C, in the second screw-in layering mechanism, rotating rod III, driven by vertical guide rail II, reciprocates vertically at a speed of 0.2 m / s and an amplitude of 0.1 m. Rotating rod VI, driven by cylinder II, reciprocates vertically at a frequency of 1 time / s and an amplitude of 0.6 m. Simultaneously, horizontal guide rails III and VI move uniformly from frame B to frame C at a speed of 0.5 m / s. This causes rotating rod III to perform a wave-like motion with an amplitude of 0.1 m, and rotating rod VI to perform a wave-like motion with an amplitude of 0.6 m. Through their relative up-and-down reciprocating motions, the two rotating rods form an opening in the zero-tension warp layer and transmit the opening from frame B to frame C. (See...) Figure 11 and Figure 12 As shown.

[0098] ⑦ Frame C side. In the second screw-in layered mechanism, rotating rods III and VI move in a wave-like pattern to the frame C side, stopping and forming a 0.7m opening, see... Figure 13 As shown.

[0099] ⑧ In the first and second spiral-entry layering mechanisms, the rotating rod rotates out of the warp layer.

[0100] ⑨ The first spiral-entry layering mechanism moves to the second warp layer layering position and repeats ①-⑧ to complete the second layer layering.

[0101] ⑩ Repeat steps ①-⑨ to complete the layering of all warp yarns.

[0102] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A screw-in type three-dimensional fabric warp yarn automatic layering device, characterized in that, include: Framework (1); The first screw-in layering mechanism is located on the rear side of the frame; The second screw-in layering mechanism is located on the front side of the frame; The first screw-in layered mechanism includes horizontal guide rail I (2), horizontal guide rail II (9), vertical guide rail I (5), rotating rod I (10-1), rotating rod II (10-2), rotating shaft I (8), rotating motor I (3), stepped base I (6), stepped base II (7) and cylinder I (20). The horizontal guide rails I (2) and II (9) are respectively located on the upper and lower sides of the rear end of the frame (1), with one end of the horizontal guide rail close to the right-angle edge of one side of the frame and the other end reaching the middle of the frame; the rotating shaft I (8) and the rotating motor I (3) are respectively located on the horizontal guide rail I and the horizontal guide rail II at the middle of the frame; the vertical guide rail I (5) is located between the rotating shaft I (8) and the rotating motor I (3), with one end connected to the horizontal guide rail II (9) through the rotating shaft I (8) and the other end connected to the rotating motor I (3) and the horizontal guide rail I (2) through the connector I (4); The stepped base I (6) and stepped base II (7) are both mounted on the slider of the vertical guide rail I (5) and are fixedly connected to the guide rail chain; one end of the rotating rod I (10-1) and the rotating rod II (10-2) are respectively connected to the stepped base I (6) and the stepped base II (7); The cylinder I (20) is mounted on the vertical guide rail I (5), and the cylinder extension rod is connected to the stepped base; The second screw-in layered mechanism includes horizontal guide rail Ⅲ (12), horizontal guide rail Ⅵ (18), vertical guide rail Ⅱ (14), rotating rod Ⅲ (19-1), rotating rod Ⅵ (19-2), rotating shaft Ⅱ (17), rotating motor Ⅱ (11), stepped base Ⅲ (15), stepped base Ⅵ (16) and cylinder Ⅱ (21); The horizontal guide rails Ⅲ (12) and Ⅵ (18) are respectively located on the upper and lower sides of the front end of the frame, with one end of the horizontal guide rail close to the right-angle edge of the other side of the frame and the other end reaching the middle of the frame; the rotating shaft Ⅱ (17) and the rotating motor Ⅱ (11) are respectively located on the horizontal guide rails Ⅲ and Ⅵ at the edge of the frame; the vertical guide rail Ⅱ (14) is located between the rotating shaft ⅠⅠ (17) and the rotating motor ⅠⅠ (11), with one end connected to the horizontal guide rail Ⅵ (18) through the rotating shaft Ⅱ (17) and the other end connected to the rotating motor Ⅱ (11) and the horizontal guide rail Ⅲ (12) through the connector Ⅱ (13); The stepped bases Ⅲ (15) and Ⅹ (16) are both mounted on the slider of the vertical guide rail Ⅱ (14) and are fixedly connected to the guide rail chain; one end of the rotating rods Ⅲ (19-1) and Ⅹ (19-2) are respectively connected to the stepped bases Ⅲ (15) and Ⅹ (16); The cylinder II (21) is mounted on the vertical guide rail II (14), and the cylinder extension rod is connected to the stepped base; All horizontal guide rails are of the same length and are half the length of the frame; The second screw-in layering mechanism has the same structural connections as the first screw-in layering mechanism, and together with the first screw-in layering mechanism, they form a two-segment screw-in layering structure.

2. The layering device according to claim 1, characterized in that, The frame structure is welded from square steel, with horizontally distributed steel pipes. The length and height of the frame are determined based on the layering distance and product height.

3. The layering device according to claim 2, characterized in that, The frame is divided into n regions according to the layering distance. The number of regions is determined based on the actual layering effect. The layering device has n screw-in layering structures, where n is greater than 2. Each screw-in layering structure is connected to the first screw-in layering mechanism, and adjacent screw-in layering structures are alternately arranged in the frame. Steel pipes are welded along the width of the frame to install the screw-in layering structures.

4. A method for automatic layering of warp yarns in a three-dimensional fabric using the apparatus described in any one of claims 1 to 3, characterized in that, Includes the following steps: (1) The rotating ends of the two rotating rods in the first screw-in layering mechanism in the middle of the frame are located at the entrance of the warp layer in the heddle area at the rear of the frame. The rotating rods are controlled by the step-shaped base and the rotating rods to rotate clockwise through the horizontal guide rail and the rotating motor I. The vertical guide rail I drives the vertical and horizontal movement of the two rotating rods. The rotating motor I, the rotating shaft I and the vertical guide rail I are carried by the upper and lower horizontal guide rails to move forward from the middle of the frame to the rear end of the frame. The two rotating rods in the first screw-in layering mechanism move forward in the warp layer with linear and wave-shaped movements, and transfer the warp opening from the heddle area at the rear of the frame to the middle of the frame and keep it open. (2) In the first screw-in layering mechanism, the rotating motor I, the rotating shaft I and the vertical guide rail I are carried by the horizontal guide rail to control the rotating rod and the three-dimensional fabric multi-layer warp yarns after the opening to make backward movement; the rotating rod I makes a small-amplitude reciprocating movement in the vertical direction under the control of the stepped base and the vertical guide rail I, while the horizontal guide rail controls the rotating rod I to make a straight line movement, and the rotating rod I makes a small-amplitude wave-shaped movement from the rear end area of ​​the frame to the middle area of ​​the frame; Under the control of the stepped base and cylinder I, the rotating rod II makes a large-amplitude reciprocating motion in the vertical direction. At the same time, the horizontal guide rail controls the rotating rod II to make a linear motion. The rotating rod II makes a large-amplitude wave-shaped motion from the rear end area of ​​the frame to the middle area of ​​the frame until the rotating rod moves to the middle of the frame, transferring the opening from the rear end of the frame to the middle of the frame. (3) The rotating rod in the first screw-in layering mechanism lifts the opening formed by the warp yarn in the middle of the frame. The rotating rod in the second screw-in layering mechanism, under the control of its upper and lower horizontal guide rails and the rotating motor II, passes into the opening of the warp yarn in a straight line. The rotating rod moves in a wave-like motion to transfer the opening from the middle of the frame to the front end of the frame. (4) In the second screw-in layering mechanism, the rotating motor II, rotating shaft II and vertical guide rail II are carried by the horizontal guide rail to control the rotating rod and the three-dimensional fabric multi-layer warp yarns after the opening to move backward in the area from the middle of the frame to the front of the frame. In the second screw-in layering mechanism, the rotating rod III moves in a small amplitude reciprocating motion in the vertical direction under the control of the stepped base and the vertical guide rail II. At the same time, the horizontal guide rail controls the rotating rod III to move in a straight line. The rotating rod III moves in a small amplitude wave-shaped motion in the area from the middle of the frame to the front of the frame. The rotating rod VI moves in a large amplitude reciprocating motion in the vertical direction under the control of the stepped base and the cylinder. At the same time, the horizontal guide rail controls the rotating rod VI to move in a straight line. Therefore, the rotating rod VI moves in a large amplitude wave-shaped motion in the area from the middle of the frame to the front of the frame until the rotating rod moves to the front of the frame, and the opening is transferred from the middle of the frame to the front of the frame, thus completing the opening of the warp layer. (5) All mechanisms in the frame move in opposite directions, and the rotating rods in the first and second screw-in layering mechanisms rotate out of the warp layer in sequence. (6) In the first screw-in layering mechanism, the rotating rod moves vertically along the vertical direction to the next layering height under the control of the stepped base and cylinder I; (7) Repeat steps (1) to (6) until all warp layers are opened.

5. The layering method according to claim 4, characterized in that, In step (1), the vertical guide rail I drives the two rotating rods to move in the vertical and horizontal directions as follows: the cylinder I drives the rotating rod II to reciprocate in the vertical direction relative to the rotating rod I; the rotating rod I makes a small-amplitude wave-shaped movement in the horizontal direction; the rotating rod II makes a large-amplitude wave-shaped movement in the horizontal direction; after the warp layer is inserted, the two rotating rods divide the warp into two parts to form an opening, thereby realizing the automatic layering of the multi-layer warp of the three-dimensional fabric.

6. The layering method according to claim 4, characterized in that, In step (2), the opening size of the warp layer formed in the middle of the frame is 0.3 to 0.6 m.

7. The layering method according to claim 4, characterized in that, Step (3) specifically includes: the two rotating rods in the second screw-in layering mechanism on the front side of the frame are controlled by the upper and lower horizontal guide rails, the rotating motor II and the vertical guide rail II, and rotate in a straight line into the warp layer in the opening formed by the two rotating rods of the first screw-in layering mechanism in the middle of the frame. The entire second screw-in layering mechanism moves in coordination from the front end of the frame to the middle of the frame to complete the screw-in action. The two rotating rods in the second screw-in layering mechanism move forward in the warp layer with straight and wave-shaped movements, and transfer the warp opening from the middle of the frame to the front of the frame, thereby transferring the fabric to the effective weaving area.

8. The layering method according to claims 4 to 7, characterized in that, Each rotating rod moves forward and backward at a speed of 0 to 2 m / s on the horizontal guide rail in the corresponding layered structure. Each stepped base moves upward and downward at a speed of 0 to 2 m / s on the vertical guide rail in the corresponding layered structure; Each rotating motor rotates at a speed of 0 to 60° / s, controlling each rotating rod to rotate in and out of the warp layer at a speed of 0 to 0.5 m / s along a straight line in the warp layer; The amplitude of each vertical guide rail during the layered motion is 0.1 to 0.15 m / s, and the amplitude of each cylinder is 0.3 to 0.6 m / s.

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