Three-dimensional fabric opening transfer device and method

Abstract

The invention discloses a three-dimensional fabric opening transfer device and method.The device comprises an opening frame, a warp matrix, a transfer mechanism, a driving transfer mechanism and a driven transfer mechanism, one end of the warp matrix is a cloth fell, the other end of the warp matrix penetrates through the opening frame in a radial mode, and an interlayer opening channel is formed; the transmission mechanism is arranged between the opening frame and a cloth fell, and the driving transmission mechanism and the driven transmission mechanism are symmetrically arranged on the two sides of the transmission mechanism, can synchronously move in the warp feeding direction and are used for fast and stable transmission of an opening. Through mutual cooperation of the transmission mechanism, the driving transmission mechanism and the driven transmission mechanism, long-stroke rapid and stable transmission from an opening to a cloth fell is achieved, the stability of the height position of the cloth fell and the consistency of the product size specification are ensured, and therefore the weaving efficiency and the product quality of three-dimensional fabric are improved.

Description

Technical Field

[0001] The invention relates to the field of textile technology, in particular to a three-dimensional fabric opening transmission device and method. Background Art

[0002] As the requirements for three-dimensional fabrics continue to increase with the development of aerospace technology, the urgent need for the development of three-dimensional fabric forming equipment from manual to automated is also growing. Three-dimensional fabrics are mostly formed by fixed-length weaving technology, which includes five major movements: warp feeding, shedding, weft beating, weft insertion and traction. It has the characteristics of flexible structure, strong designability and short cycle.

[0003] Due to the characteristics of the process, the warp yarns are mostly arranged in a radial shape in space. Since the distance between the opening and the cloth fell is long, the warp yarns will squeeze each other at the cloth fell, making the cloth fell smaller, making it difficult to introduce the weft yarns, and the height position of the cloth fell in the thickness direction is also unstable. Manual assistance is often required to transfer the opening, the degree of automation is low, and the consistency of the preform size specifications is poor. In order to improve the stability and weaving efficiency of three-dimensional fabrics, an opening transfer device and method are urgently needed to achieve long-distance fast and stable transfer between the opening and the cloth fell, so as to ensure the stability of the cloth fell height position and improve the consistency of product size specifications. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] The technical problem to be solved by the present invention is how to improve the weaving efficiency and product quality of three-dimensional fabrics.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a three-dimensional fabric opening transmission device, which includes an opening frame, a warp yarn matrix, a transmission mechanism, an active transmission mechanism and a driven transmission mechanism, one end of the warp yarn matrix is ​​the cloth fell, and the other end of the warp yarn matrix radially passes through the opening frame to form an interlayer opening channel, the transmission mechanism is arranged between the opening frame and the cloth fell, the active transmission mechanism and the driven transmission mechanism are symmetrically arranged on both sides of the transmission mechanism, and can move synchronously along the warp feeding direction for fast and stable transmission of the opening.

[0007] As a preferred solution of the three-dimensional fabric opening transmission device described in the present invention, the active transmission mechanism can realize multi-degree-of-freedom movement in space, which is convenient for the transmission of the opening. It includes an active lifting module, an active rotating mechanism and a layered precession mechanism. The active lifting module is arranged on the transmission mechanism, the active rotating mechanism is arranged on the active lifting module, and the layered precession mechanism is arranged on the active rotating mechanism. The active lifting module, the active rotating mechanism and the layered precession mechanism are connected in series in sequence. The layered precession mechanism can rotate around the z-axis when driven by the active rotating mechanism, so that the layered precession mechanism in the warp yarn matrix can swing up and down, thereby facilitating the combing and layering of sticky warp yarns.

[0008] As a preferred solution of the three-dimensional fabric opening transmission device of the present invention, wherein: the driven transmission mechanism includes a driven lifting module and a locking compensation mechanism, the driven lifting module is arranged on the transmission mechanism, and the locking compensation mechanism is arranged on the driven lifting module;

[0009] The locking compensation mechanism comprises a locking mechanism and a posture follower compensation mechanism, the locking mechanism is movably arranged on the driven lifting module, and the posture follower compensation mechanism is arranged on the locking mechanism.

[0010] As a preferred solution of the three-dimensional fabric opening transmission device described in the present invention, wherein: the layered precession mechanism includes a precession drive and a transmission rod, the precession drive is arranged on the active rotation mechanism, the transmission rod is arranged on the precession drive, and the transmission rod can move along the y-axis under the action of the precession drive.

[0011] As a preferred solution of the three-dimensional fabric opening transfer device described in the present invention, the transfer rod is in a gear rod structure, and the end of the transfer rod is flexibly and floatingly connected to a tip cone of a conical structure to facilitate the positioning of the transfer rod and capture the current warp yarn layer, and to play a certain buffering and length compensation role.

[0012] As a preferred solution of the three-dimensional fabric opening transmission device described in the present invention, wherein: the locking mechanism includes a locking frame, a locking inner sleeve, a locking outer sleeve, steel balls and a locking drive, the locking frame is arranged on the driven lifting module, the locking inner sleeve is arranged on the locking frame, so that the locking inner sleeve can rotate around the locking frame, the locking outer sleeve is sleeved on the locking inner sleeve, the inlet end of the locking outer sleeve is provided with a wedge-shaped step, the steel balls are arranged on the locking inner sleeve, and the locking drive is arranged on the locking outer sleeve.

[0013] As a preferred solution of the three-dimensional fabric opening transmission device described in the present invention, wherein: the posture follower compensation mechanism includes a male reset block, a female reset block and a reset drive, the male reset block and the female reset block are a pair of complementary rotating wedge blocks, the rotating wedge block is arranged on the locking frame, the male reset block is fixedly connected to the locking inner sleeve, and the reset drive is arranged on the female reset block. When the locking mechanism is deflected at an angle, the reset drive acts on the female reset block to restore the locking mechanism to its initial position.

[0014] As a preferred solution of the three-dimensional fabric opening transfer device described in the present invention, wherein: the transfer mechanism includes a frame, two groups of transmission guide mechanisms, two first mobile platforms and an opening transfer drive, the frame is arranged at the bottom of the warp yarn matrix, the two groups of transmission guide mechanisms are symmetrically arranged on both sides of the frame, the two first mobile platforms are symmetrically arranged on the transmission guide mechanisms, the opening transfer drive is arranged on the first mobile platform, the active lifting module and the driven lifting module are correspondingly arranged on the two first mobile platforms, so that the master and slave transfer mechanisms move in the form of a Cartesian coordinate system.

[0015] As a preferred solution of the three-dimensional fabric opening transmission device described in the present invention, wherein: the transmission mechanism includes two gear rods and two second moving platforms, the two gear rods are symmetrically arranged on both sides of the warp yarn matrix, the active lifting module and the driven lifting module are symmetrically arranged on both sides of the opening frame, one end of the two gear rods is respectively connected to the active lifting module and the driven lifting module, two second moving platforms are symmetrically arranged on the gear rods, and the layered precession mechanism and the locking compensation mechanism are correspondingly arranged on the two second moving platforms, so that the master and slave transmission mechanisms move in polar coordinates.

[0016] A three-dimensional fabric opening transmission method, comprising the three-dimensional fabric opening transmission device, comprises the following steps:

[0017] Step 1: The transmission mechanism synchronously drives the master and slave transmission mechanisms to the intersection of the warp matrix and the open frame;

[0018] Step 2: The master and slave lifting modules respectively drive the layered precession mechanism and the locking compensation mechanism to synchronously position to the current opening layer;

[0019] Step 3: The precession drive drives the transfer rod to pass through the current open layer of the warp yarn matrix, and the tip cone at the end of the transfer rod enters into the locking inner sleeve;

[0020] Step 4: Lock the driver and lock the outer sleeve to lock the tip cone;

[0021] Step 5: The transmission mechanism drives the master and slave transmission mechanisms to move synchronously, transmits the opening to the cloth fell position, and starts weft insertion;

[0022] Step 6: After the weft insertion is completed, the locking drive drives the locking outer sleeve to release the tip cone;

[0023] Step 7: The precession drive drives the transfer rod back to the initial position;

[0024] Step 8: Repeat steps 1 to 7 until the weaving is complete.

[0025] The beneficial effects of the present invention are as follows: through the cooperation between the transmission mechanism, the active transmission mechanism and the driven transmission mechanism, a long-stroke fast and stable transmission from the opening to the cloth fell is achieved, thereby ensuring the stability of the cloth fell height position and the consistency of product size specifications, thereby improving the weaving efficiency and product quality of the three-dimensional fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0027] Figure 1 This is a schematic diagram of the overall structure of the three-dimensional fabric opening transmission device in Example 1.

[0028] Figure 2 It is a schematic diagram of the structure of the transfer rod of the three-dimensional fabric opening transfer device.

[0029] Figure 3 It is a schematic diagram of the structure of locking the tip cone of the locking mechanism of the three-dimensional fabric opening transmission device.

[0030] Figure 4 It is a structural schematic diagram of the posture follower compensation mechanism of the three-dimensional fabric opening transmission device.

[0031] Figure 5 This is a schematic diagram of the overall structure of the three-dimensional fabric opening transmission device in Example 2.

[0032] Figure 6 This is a schematic diagram of the overall structure of another three-dimensional fabric opening transmission device in Example 2.

[0033] In the figure: 1. opening frame; 2. warp matrix; 3. active transmission mechanism; 31. active lifting module; 32. active rotation mechanism; 33. layered precession mechanism; 331. precession drive; 332. transmission rod; 333. tip cone; 4. driven transmission mechanism; 41. driven lifting module; 42. locking compensation mechanism; 421. locking mechanism; 4211. locking frame; 4212. locking drive; 4213. locking inner sleeve; 4214. locking outer sleeve; 4215. steel ball; 422. posture driven compensation mechanism; 4221. male reset block; 4222. female reset block; 4223. reset drive; 5. transmission mechanism; 51. frame; 52. opening transmission drive; 53. transmission guide mechanism; 54. first moving platform; 55. gear rod; 56. second moving platform. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0037] Example 1

[0038] Reference Figures 1 to 4 , which is the first embodiment of the present invention, and provides a three-dimensional fabric opening transmission device, which includes an opening frame 1, a warp yarn matrix 2, a transmission mechanism 5, an active transmission mechanism 3 and a driven transmission mechanism 4, one end of the warp yarn matrix 2 is the cloth fell, and the other end of the warp yarn matrix 2 radially passes through the opening frame 1 to form an interlayer opening channel, the transmission mechanism 5 is arranged between the opening frame 1 and the cloth fell, the active transmission mechanism 3 and the driven transmission mechanism 4 are symmetrically arranged on both sides of the transmission mechanism 5 for fast and stable transmission of the opening.

[0039] The opening frame 1 is a rectangular structure, and one end of the warp yarn matrix 2 radially passes through the opening frame 1 to form an interlayer opening channel. The other end of the warp yarn matrix 2 is the cloth fell, which is located directly in front of the opening frame 1. The distance between the opening and the cloth fell is relatively far, which causes the warp yarns at the cloth fell position to squeeze each other, the cloth fell becomes smaller, the weft yarn is difficult to introduce, and the height position of the cloth fell in the thickness direction is also unstable, resulting in poor consistency in the size specifications of the preform. In this embodiment, a transmission mechanism 5 is installed between the opening frame 1 and the cloth fell, and an active transmission mechanism 3 and a driven transmission mechanism 4 are symmetrically installed on both sides of the transmission mechanism 5, so that the active transmission mechanism 3 and the driven transmission mechanism 4 can be synchronously moved along the warp feeding direction, and the transmission mechanism 5, the active transmission mechanism 3 and the driven transmission mechanism 4 cooperate with each other to achieve long-stroke fast and stable transmission from the opening to the cloth fell, ensuring the stability of the height position of the cloth fell and the consistency of the product size specifications, thereby improving the weaving efficiency and product quality of the three-dimensional fabric.

[0040] Specifically, the transfer mechanism 5 includes a frame 51, two sets of transmission guide mechanisms 53, two first mobile platforms 54 and an opening transfer drive 52. The frame 51 is arranged at the bottom of the warp matrix 2, the two sets of transmission guide mechanisms 53 are symmetrically arranged on both sides of the frame 51, the two first mobile platforms 54 are symmetrically arranged on the transmission guide mechanisms 53, the opening transfer drive 52 is arranged on the first mobile platform 54, and the active lifting module 31 and the driven lifting module 41 are correspondingly arranged on the two first mobile platforms 54.

[0041] The transmission mechanism 5 in this embodiment is mainly composed of a frame 51, two sets of transmission guide mechanisms 53, two first mobile platforms 54 and an opening transmission drive 52. A frame 51 for installation is installed at the bottom of the warp matrix 2, and two sets of transmission guide mechanisms 53 are symmetrically installed on the left and right sides of the frame 51. It should be noted that the structure of the transmission guide mechanism 53 in this embodiment includes but is not limited to gear rack transmission and synchronous belt transmission. This embodiment takes gear rack transmission as an example. Two racks are symmetrically installed on the left and right sides of the frame 51, and two first mobile platforms 54 are symmetrically slidably installed on the two racks. The opening transfer drive 52 is installed on the mobile platform 54. The opening transfer drive 52 in this embodiment can adopt a motor or other driving methods. A gear is installed on the output shaft of the motor, and the gear is meshed with the rack. The active lifting module 31 in the active transmission mechanism 3 and the driven lifting module 41 in the driven transmission mechanism 4 are respectively installed on the upper surfaces of the two first mobile platforms 54, so that the transmission guide mechanism 53 can drive the active transmission mechanism 3 and the driven transmission mechanism 4 to move synchronously through the first mobile platform 54. This embodiment can make the master and slave transmission mechanisms move in the form of a Cartesian coordinate system, that is, Figure 1As shown, in this embodiment, the Cartesian coordinate system is defined with the direction of the warp centerline as the z-axis, the vertical direction as the x-axis, and the direction perpendicular to the warp centerline as the y-axis.

[0042] Specifically, the active transmission mechanism 3 includes an active lifting module 31, an active rotation mechanism 32 and a layered precession mechanism 33. The active lifting module 31 is arranged on the transmission mechanism 5, the active rotation mechanism 32 is arranged on the active lifting module 31, and the layered precession mechanism 33 is arranged on the active rotation mechanism 32. The active lifting module 31, the active rotation mechanism 32 and the layered precession mechanism 33 are sequentially connected in series; specifically, the layered precession mechanism 33 includes a precession drive 331 and a transmission rod 332. The precession drive 331 is arranged on the active rotation mechanism 32, and the transmission rod 332 is arranged on the precession drive 331. Further, the transmission rod 332 is a gear rod 55 structure, and the end of the transmission rod 332 is flexibly and floatingly connected with a tip cone 333 of a conical structure.

[0043] The active transmission mechanism 3 in this embodiment can realize multi-degree-of-freedom movement in space to facilitate the transmission of the opening. It is mainly composed of an active lifting module 31, an active rotating mechanism 32 and a layered precession mechanism 33. The active lifting module 31 is installed on the first mobile platform 54 on the left side of the frame 51. It should be noted that the active lifting module 31 in this embodiment includes but is not limited to gear rack transmission and synchronous belt transmission. This embodiment takes gear rack transmission as an example. The rack is vertically installed on the first mobile platform 54, and the rack is slidably installed on a fixed frame. A driving motor is installed on the fixed frame. A gear is installed on the output shaft of the motor. The gear is meshed with the rack, and an active rotating mechanism 32 is installed on the fixed frame to realize The active rotating mechanism 32 now moves up and down on the x-axis, and a layered precession mechanism 33 is installed on the active rotating mechanism 32. The active rotating mechanism 32 in this embodiment is mainly composed of a servo motor and a worm gear. The servo motor drives the worm gear, so that the layered precession mechanism 33 can rotate around the z-axis under the drive of the active rotating mechanism 32, so as to realize that the transfer rod 332 in the layered precession mechanism 33 in the warp matrix 2 swings up and down at a certain angle in the xoy plane, thereby facilitating the combing and layering of the sticky warp yarns; wherein the layered precession mechanism 33 is composed of a precession drive 331 and a transfer rod 332, and the precession drive 331 can drive the transfer rod 332 to perform telescopic movement along the y-axis, such as Figure 2As shown, the transfer rod 332 is in the form of a circular toothed rod 55 structure, which facilitates the transfer rod 332 to make telescopic movements, and at the same time, the warp yarns can be combed and layered through the teeth on the outer surface of the transfer rod 332, and a tip cone 333 with a conical structure is flexibly and floatingly connected to the end of the transfer rod 332 through a spring, and a slot is also provided on the tip cone 333 to facilitate the positioning of the transfer rod 332 and capture of the current warp yarn layer, and to play a certain buffering and length compensation role, and when the active lifting module 31 is driven to position at a certain opening layer, the precession drive 331 can drive the transfer rod 332 to move in the positive direction along the y-axis and pass through the interlayer opening, and at the same time, the tip cone 333 can also separate the warp yarns sticking between the layers up and down to ensure a clear opening.

[0044] Specifically, the driven transmission mechanism 4 includes a driven lifting module 41 and a locking compensation mechanism 42. The driven lifting module 41 is arranged on the transmission mechanism 5, and the locking compensation mechanism 42 is arranged on the driven lifting module 41; the locking compensation mechanism 42 includes a locking mechanism 421 and a posture driven compensation mechanism 422. The locking mechanism 421 is movably arranged on the driven lifting module 41, and the posture driven compensation mechanism 422 is arranged on the locking mechanism 421; specifically, the locking mechanism 421 includes a locking frame 4211, a locking inner sleeve 421 3. A locking outer sleeve 4214, a steel ball 4215 and a locking drive 4212. The locking frame 4211 is arranged on the driven lifting module 41. The locking inner sleeve 4213 is arranged on the locking frame 4211, so that the locking inner sleeve 4213 can rotate around the locking frame 4211. The locking outer sleeve 4214 is sleeved on the locking inner sleeve 4213. A wedge-shaped step is arranged at the entrance end of the locking outer sleeve 4214. The steel ball 4215 is arranged on the locking inner sleeve 4213. The locking drive 4212 is arranged on the locking outer sleeve 4214.

[0045] The driven transmission mechanism 4 is mainly composed of a driven lifting module 41 and a locking compensation mechanism 42. The driven lifting module 41 is installed on another first mobile platform 54, and the locking compensation mechanism 42 is installed on the driven lifting module 41, which is used to capture and lock the tip cone 333 of the precessing transmission rod 332, which not only ensures the stability of the transmission rod 332 during the opening transmission process, but also passively compensates for the change of the posture angle when the active rotating mechanism 32 actively combs the warp yarn; it should be noted that the structure of the driven lifting module 41 is the same as that of the active lifting module 31, and follows the active lifting module 31 along the x-axis and z-axis synchronous linkage, which will not be repeated here. Specifically, the locking compensation mechanism 42 includes a locking mechanism 421 and a posture follower The compensation mechanism 422, wherein the locking mechanism 421 is mainly composed of a locking frame 4211, a locking inner sleeve 4213, a locking outer sleeve 4214, a steel ball 4215 and a locking drive 4212. The locking frame 4211 is movably mounted on the fixing frame of the driven lifting module 41, and the locking inner sleeve 4213 is mounted on the locking frame 4211 so that the locking inner sleeve 4213 can rotate around the locking frame 4211. The locking outer sleeve 4214 is sleeved on the locking inner sleeve 4213, and a wedge-shaped step is provided at the inlet end of the locking outer sleeve 4214. A steel ball 4215 is also movably mounted in the inner wall of the front end of the locking inner sleeve 4213, and a locking drive 4212 is installed on the locking outer sleeve 4214; Figure 3 As shown, when the tip cone 333 advances, it is inserted into the inner hole of the locking inner sleeve 4213. At this time, the locking outer sleeve 4214 moves in the negative direction of the y-axis under the action of the locking drive 4212, and the wedge-shaped hole at the front end of the locking outer sleeve 4214 squeezes the steel ball 4215, so that it is embedded in the groove of the tip cone 333, thereby completing the capture and locking of the transfer rod 332; when the transfer opening is opened, the master and slave transfer mechanisms move synchronously to the cloth fell position, and at the same time, the active rotating mechanism 32 drives the transfer rod 332 to swing up and down, so as to realize the combing of the warp yarn matrix 2 and reduce the sticking of the warp yarns.

[0046] Specifically, the posture follower compensation mechanism 422 includes a male reset block 4221, a female reset block 4222 and a reset drive 4223. The male reset block 4221 and the female reset block 4222 are a pair of complementary rotating wedge blocks. The male reset block 4221 is arranged on the locking frame 4211. The male reset block 4221 is fixedly connected to the locking inner sleeve 4213. The reset drive 4223 is arranged on the female reset block 4222.

[0047] like Figure 4As shown, the posture follower compensation mechanism 422 is mainly composed of a male reset block 4221, a female reset block 4222 and a reset drive 4223, wherein the male reset block 4221 and the female reset block 4222 are a pair of complementary rotary wedge blocks, the rotary wedge blocks are installed on the locking frame 4211, and the end of the male reset block 4221 opposite to the female reset block 4222 is fixedly connected to the locking inner sleeve 4213, and the end of the female reset block 4222 opposite to the male reset block 4221 is connected to the reset drive 4223. The reset drive 4223 in this embodiment can adopt a reset compression spring. When the mechanism 421 swings following the transfer rod 332, the transfer rod 332 drives the male reset block 4221 to move synchronously through the locking inner sleeve 4213. During this process, the female reset block 4222 is acted upon by the reset compression spring to slide back and forth along the inclined groove on the male reset block 4221 to achieve posture compensation for the transfer rod 332 during the swinging process, so that the transfer rod 332 can better comb and layer the warp yarn at the weaving mouth. When the posture compensation is completed, the female reset block 4222 returns to its initial position under the action of the reset compression spring to keep the entire locking compensation mechanism 42 horizontal.

[0048] During operation, the motor of the opening transfer drive 52 is first started, and the motor drives the gear to rotate, and the gear is meshed with the rack, so that the opening transfer drive 52 can drive the active transfer mechanism 3 and the driven transfer mechanism 4 to move synchronously to the intersection root between the yarn matrix and the opening frame 1 through the first moving platform 54, and then start the driving motors on the active lifting module 31 and the driven lifting module 41, so that the active lifting module 31 and the driven lifting module 41 can drive the layered precession mechanism 33 and the locking compensation mechanism 42 to synchronously position to the current opening layer. After positioning is completed, the precession drive 331 is used to drive the transfer rod 332 to pass through the current opening layer of the warp yarn matrix 2, and the tip cone 333 at the end of the transfer rod 332 extends into the locking inner sleeve 42. 13, and start the locking drive 4212 to drive the locking sleeve 4214 to move in the negative direction of the y-axis, the wedge-shaped hole at the front end of the locking sleeve 4214 squeezes the steel ball 4215, so that it is embedded in the groove of the tip cone 333, thereby completing the capture and locking of the transfer rod 332, and then the motor of the opening transfer drive 52 drives the active transfer mechanism 3 and the driven transfer mechanism 4 to move synchronously along the positive direction of the z-axis, so as to quickly and stably transfer the opening to the cloth mouth position, start weft insertion, and finally, after completing the weft insertion, start the locking drive 4212 to drive the locking sleeve 4214 to move in the positive direction of the y-axis, release the tip cone 333, and start the precession drive 331 to drive the transfer rod 332 back to the initial position for the next opening transfer.

[0049] Example 2

[0050] Reference Figures 2 to 6, which is the second embodiment of the present invention. The difference between this embodiment and the previous embodiment lies in the composition structure of the transmission mechanism 5.

[0051] Specifically, the transmission mechanism 5 includes two gear rods 55 and two second mobile platforms 56. The two gear rods 55 are symmetrically arranged on both sides of the warp matrix 2. The active lifting module 31 and the driven lifting module 41 are symmetrically arranged on both sides of the opening frame 1. One end of the two gear rods 55 is respectively connected to the active lifting module 31 and the driven lifting module 41. The two second mobile platforms 56 are symmetrically arranged on the gear rods 55. The layered precession mechanism 33 and the locking compensation mechanism 42 are correspondingly arranged on the two second mobile platforms 56.

[0052] The transmission mechanism 5 in this embodiment is mainly composed of two gear rods 55 and two second mobile platforms 56. The active lifting module 31 and the driven lifting module 41 are symmetrically installed on the left and right sides of the opening frame 1. One end of the two gear rods 55 is respectively connected to the active lifting module 31 and the driven lifting module 41, so that the gear rods 55 can rotate around the hinge axis under the drive of the active and driven lifting modules 41. The other end of the gear rod 55 is hinged at the cloth fell. The two second mobile platforms 56 are symmetrically installed on the gear rods 55. The layered precession mechanism 33 and the locking compensation mechanism 42 are correspondingly installed on the two second mobile platforms 56. In this embodiment, the hinge axis is used as the polar coordinate origin and the gear rod 55 is used as the polar axis, so that the active and driven transmission mechanisms move in the form of polar coordinates.

[0053] The second mobile platform 56 makes a linear motion in the polar axis direction along the gear rod 55, and the layered precession mechanism 33 and the locking compensation mechanism 42 are synchronously linked on the second mobile platform 56 on both sides, thereby transferring the opening to the cloth fell position through the motion form of the polar coordinate system.

[0054] Another working condition of this embodiment is as follows Figure 6 As shown, in order to improve the transmission efficiency, two second moving platforms 56 are respectively installed on the two gear rods 55 in this embodiment, and two pairs of layered precession mechanisms 33 and locking compensation mechanisms 42 are respectively installed, which are synchronously linked. When the first group of transfer rods 332 transfers the opening to a certain position, the second group of transfer rods 332 captures the current opening and continues to perform the opening transfer work, while the first group of transfer rods 332 runs to the next warp yarn opening layer to prepare for the positioning and transfer of the next layer of opening. The two groups of transfer rods 332 alternately transfer the opening to achieve efficient operation, thereby further improving the transmission efficiency.

[0055] Example 3

[0056] Reference Figures 1 to 6 , which is the third embodiment of the present invention, is based on the first two embodiments and provides a three-dimensional fabric opening transmission method, comprising the following steps:

[0057] Step 1: The active transmission mechanism 3 and the driven transmission mechanism 4 are synchronously driven to the intersection of the warp matrix 2 and the open frame 1 through the transmission mechanism 5;

[0058] Step 2: After the driving of the master and slave transmission mechanisms is completed, the active lifting module 31 and the slave lifting module 41 respectively drive the layered precession mechanism 33 and the locking compensation mechanism 42 to synchronously locate to the current opening layer;

[0059] Step 3: After positioning is completed, the transfer rod 332 is driven through the current opening layer of the warp matrix 2 by the precession drive 331, and the tip cone 333 at the end of the transfer rod 332 enters the locking inner sleeve 4213;

[0060] Step 4: After the tip cone 333 enters the locking inner sleeve 4213, the locking outer sleeve 4214 is driven by the locking drive 4212 to lock the tip cone 333;

[0061] Step 5: After the locking of the tip cone 333 is completed, the active transmission mechanism 3 and the driven transmission mechanism 4 are driven by the transmission mechanism 5 to move synchronously toward the cloth fell direction, the opening is transmitted to the cloth fell position, and weft insertion begins;

[0062] Step 6: After the weft insertion is completed, the locking drive 4212 is used to drive the locking sleeve 4214 to release the tip cone 333;

[0063] Step 7: After the tip cone 333 is released, the transfer rod 332 is driven back to the initial position by the precession drive 331;

[0064] Step 8: Repeat steps 1 to 7 until the weaving is complete.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A three-dimensional fabric opening transmission device, characterized in that: The invention comprises an opening frame (1), a warp yarn matrix (2), a transmission mechanism (5), an active transmission mechanism (3) and a driven transmission mechanism (4); one end of the warp yarn matrix (2) is a cloth fell, and the other end of the warp yarn matrix (2) radially passes through the opening frame (1) to form an interlayer opening channel; the transmission mechanism (5) is arranged between the opening frame (1) and the cloth fell; the active transmission mechanism (3) and the driven transmission mechanism (4) are symmetrically arranged on both sides of the transmission mechanism (5) for fast and stable transmission of the opening.

2. The three-dimensional fabric opening transmission device according to claim 1, characterized in that: The active transmission mechanism (3) comprises an active lifting module (31), an active rotating mechanism (32) and a layered precession mechanism (33); the active lifting module (31) is arranged on the transmission mechanism (5); the active rotating mechanism (32) is arranged on the active lifting module (31); the layered precession mechanism (33) is arranged on the active rotating mechanism (32); the active lifting module (31), the active rotating mechanism (32) and the layered precession mechanism (33) are sequentially connected in series and linked.

3. The three-dimensional fabric opening transmission device according to claim 2, characterized in that: The driven transmission mechanism (4) comprises a driven lifting module (41) and a locking compensation mechanism (42); the driven lifting module (41) is arranged on the transmission mechanism (5); and the locking compensation mechanism (42) is arranged on the driven lifting module (41); The locking compensation mechanism (42) comprises a locking mechanism (421) and a posture driven compensation mechanism (422); the locking mechanism (421) is movably arranged on the driven lifting module (41); and the posture driven compensation mechanism (422) is arranged on the locking mechanism (421).

4. The three-dimensional fabric opening transmission device according to claim 2, characterized in that: The layered precession mechanism (33) comprises a precession drive (331) and a transmission rod (332); the precession drive (331) is arranged on the active rotation mechanism (32); and the transmission rod (332) is arranged on the precession drive (331).

5. The three-dimensional fabric opening transmission device according to claim 4, characterized in that: The transmission rod (332) is in a gear rod structure, and the end of the transmission rod (332) is flexibly and floatingly connected to a tip cone (333) of a conical structure.

6. The three-dimensional fabric opening transmission device according to claim 3, characterized in that: The locking mechanism (421) comprises a locking frame (4211), a locking inner sleeve (4213), a locking outer sleeve (4214), a steel ball (4215) and a locking drive (4212); the locking frame (4211) is arranged on the driven lifting module (41); the locking inner sleeve (4213) is arranged on the locking frame (4211); the locking outer sleeve (4214) is sleeved on the locking inner sleeve (4213); a wedge-shaped step is arranged at the inlet end of the locking outer sleeve (4214); the steel ball (4215) is arranged on the locking inner sleeve (4213); and the locking drive (4212) is arranged on the locking outer sleeve (4214).

7. The three-dimensional fabric opening transmission device according to claim 6, characterized in that: The posture driven compensation mechanism (422) comprises a male reset block (4221), a female reset block (4222) and a reset drive (4223). The male reset block (4221) and the female reset block (4222) are a pair of complementary rotating wedge blocks, the rotating wedge block is arranged on the locking frame (4211), the male reset block (4221) is fixedly connected to the locking inner sleeve (4213), and the reset drive (4223) is arranged on the female reset block (4222).

8. The three-dimensional fabric opening transmission device according to claim 3, characterized in that: The transfer mechanism (5) comprises a frame (51), two groups of transmission guide mechanisms (53), two first mobile platforms (54) and an opening transfer drive (52); the frame (51) is arranged at the bottom of the warp matrix (2); the two groups of transmission guide mechanisms (53) are symmetrically arranged on both sides of the frame (51); the two first mobile platforms (54) are symmetrically arranged on the transmission guide mechanisms (53); the opening transfer drive (52) is arranged on the first mobile platforms (54); and the active lifting module (31) and the driven lifting module (41) are correspondingly arranged on the two first mobile platforms (54).

9. The three-dimensional fabric opening transmission device according to claim 3, characterized in that: The transmission mechanism (5) comprises two gear rods (55) and two second movable platforms (56), the two gear rods (55) are symmetrically arranged on both sides of the warp matrix (2), the active lifting module (31) and the driven lifting module (41) are symmetrically arranged on both sides of the opening frame (1), one end of the two gear rods (55) is respectively connected to the active lifting module (31) and the driven lifting module (41), the two second movable platforms (56) are symmetrically arranged on the gear rods (55), and the layered precession mechanism (33) and the locking compensation mechanism (42) are correspondingly arranged on the two second movable platforms (56).

10. A three-dimensional fabric opening transmission method, comprising a three-dimensional fabric opening transmission device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The transmission mechanism synchronously drives the master and slave transmission mechanisms to the intersection of the warp matrix and the open frame; Step 2: The master and slave lifting modules respectively drive the layered precession mechanism and the locking compensation mechanism to synchronously position to the current opening layer; Step 3: The precession drive drives the transfer rod to pass through the current open layer of the warp yarn matrix, and the tip cone at the end of the transfer rod enters into the locking inner sleeve; Step 4: Lock the driver and lock the outer sleeve to lock the tip cone; Step 5: The transfer mechanism drives the master and slave transfer mechanisms to move synchronously, transfers the opening to the cloth fell position, and starts weft insertion; Step 6: After the weft insertion is completed, the locking drive drives the locking outer sleeve to release the tip cone; Step 7: The precession drive drives the transfer rod back to the initial position; Step 8: Repeat steps 1 to 7 until the weaving is complete.

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