A tooth groove type uniform yarn hanging device

Abstract

The present invention belongs to the field of textile machinery, and specifically relates to a toothed slot type uniform yarn hanging device that can produce three-dimensional fabrics, including a lifting and adjusting device, a guide column, a shaping and reinforcing cover plate, and a toothed slot type uniform yarn distribution ring; the lifting and adjusting device is installed on the gantry frame, and is used to bear the gravity of the entire yarn hanging device and the woven fabric and adjust the height of the entire set of yarn hanging devices; the upper end of the guide column is connected to the lifting and adjusting device, and the lower end is connected to the toothed slot type uniform yarn distribution ring, which is used to connect and fix the toothed slot type uniform yarn distribution ring and the auxiliary shaping and reinforcing cover plate to lift and lower; the shaping and reinforcing cover plate is sleeved on the guide column, and is used to press the yarn after being bolted and hung to prevent the yarn from moving; the toothed slot type uniform yarn distribution ring is used to achieve a ring-shaped uniform arrangement of the yarn. Compared with the prior art, the present invention solves the problem that in the weaving process of three-dimensional fabrics with special cross-sections, the yarn is arranged complicatedly along the cross-sectional contour of the fabric, and it is easy to slip along the contour direction, resulting in uneven yarn density.

Description

Technical Field

[0001] The invention belongs to the field of textile machinery, and in particular relates to a tooth-groove type uniform yarn hanging device capable of producing three-dimensional fabrics, which meets the uniform hanging requirement of yarns when the three-dimensional fabrics are knitted. Background Art

[0002] The integral forming technology of three-dimensional braided composite materials is a new type of textile technology developed in the 1980s. In the fabric formed by this method, the fibers penetrate obliquely along the thickness direction of the fabric, so the fabric has strong integrity, avoiding the risk of composite material delamination, and can be better applied in the aerospace field.

[0003] The existing three-dimensional braided fabrics need a certain yarn hanging device to hang the yarn during the weaving process to facilitate the weaving and forming of the fabric. For fabrics with regular interface rotation bodies, the yarns can be naturally evenly distributed in the circular weaving section, which has little effect on the uniformity of the fabric warp density. For fabrics with special-shaped cross-sections, the uniformity of the warp arrangement is easily affected by the local change trends such as the depression and protrusion of the fabric cross-section, resulting in uneven arrangement of the fabric warp yarns, affecting the uniformity of the fabric forming density. The invention patent "a yarn hanging device" with the publication number CN 211078001 U provides a yarn hanging device with the advantages of simple structure, convenient installation and low production cost, which solves the problem that the current yarn hanging device has high manufacturing cost, complex process, low batch production efficiency and cannot meet the production needs. The invention patent "a biaxial warp knitting machine X-direction needle plate yarn hanging device" with the publication number CN213925286 U provides a biaxial warp knitting machine X-direction needle plate yarn hanging device, which solves the problem of cutting yarn falling to the ground and polluting the workshop environment. The above patents and existing market technologies do not involve the problem of uneven yarn hanging of three-dimensional braided fabrics with special cross-sections. Summary of the invention

[0004] The purpose of the present invention is to provide a tooth-groove type uniform yarn hanging device, so as to realize equal spacing constraint of yarns along the contour direction during the yarn hanging process, so as to avoid uneven yarn arrangement, thereby affecting the uniformity of fabric density. The invention solves the problem that in the process of weaving three-dimensional fabrics with special cross-sections, the yarns are arranged complicatedly along the cross-sectional contour of the fabric, and are easy to slip along the contour direction, resulting in uneven yarn density, and even failing to meet the process requirements.

[0005] The technical solution to achieve the purpose of the present invention is: a toothed uniform yarn hanging device, including a lifting and adjusting device, a guide column, a shaping and pressure cover plate and a toothed uniform yarn distribution ring; the lifting and adjusting device is installed on the gantry frame, and is used to bear the gravity of the entire yarn hanging device and the woven fabric and adjust the height of the entire yarn hanging device; the upper end of the guide column is connected to the lifting and adjusting device, and the lower end is connected to the toothed uniform yarn distribution ring, which is used to connect and fix the toothed uniform yarn distribution ring and the auxiliary shaping and pressure cover plate for lifting and lowering; the shaping and pressure cover plate is sleeved on the guide column, and is used to press the yarn after being hung to prevent the yarn from moving; the toothed uniform yarn distribution ring is used to achieve a ring-shaped uniform arrangement of the yarn.

[0006] Furthermore, the lifting and adjusting device includes a frame crossbeam, a lifting and adjusting plate and a lifting screw; the frame crossbeam is installed on the gantry frame to bear the gravity of the entire yarn hanging device and the woven fabric; the lifting and adjusting plate is provided with two layers, the upper lifting and adjusting plate is fixedly connected to the frame crossbeam and is threadedly connected to the upper end of the lifting screw, and the lower lifting and adjusting plate is threadedly connected to the lower end of the lifting screw. By adjusting the lifting screw, the lower lifting and adjusting plate is driven to move up and down, which is used for height adjustment of the entire set of yarn hanging device.

[0007] Furthermore, the middle of the guide column is an optical axis, and threads are arranged at both ends.

[0008] Furthermore, the shaping and pressurizing cover plate is provided with guide holes for providing guide constraints for the lifting and lowering of the shaping and pressurizing cover plate; the shaping and pressurizing cover plate is provided with contoured matching grooves inside for pressing the yarn.

[0009] Furthermore, the tooth-groove type uniform yarn distribution ring is provided with equally spaced segmentation tooth columns for equally spaced segmentation and circumferential constraint of the hung yarn.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the present invention relates to a composite material three, which is a tooth-groove type uniform yarn hanging device for fabrics with special cross-sections, which can realize uniform arrangement of multi-layer warp yarns with special cross-sections, thereby making the warp yarn density uniform, further making the fabric density uniform, and improving the quality of the three-dimensional fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of a tooth-groove type uniform yarn hanging device;

[0012] Figure 2 It is a pressing plate for a toothed-type uniform yarn hanging device;

[0013] Figure 3 It is a yarn hanging ring for a toothed-type uniform yarn hanging device;

[0014] Figure 4 a is a square tooth-groove yarn hanging ring;

[0015] Figure 4 b is a triangular toothed yarn hanging ring;

[0016] Figure 5 Schematic diagram of the yarn hanging in the tooth groove.

[0017] In the figure: 1-frame crossbeam, 2-lifting adjustment device, 3-lifting adjustment plate, 4-guide column, 5-lifting screw, 6-forming pressure cover plate, 7-tooth groove type uniform yarn distribution ring. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The toothed slot type uniform yarn hanging device provided by the present invention comprises a toothed slot type uniform yarn laying ring 7, a shaping and pressurizing cover plate 6, a guide column 4 and a lifting and lowering adjustment device 2.

[0019] like Figure 1 The lifting and adjusting device 2 is installed on the gantry frame, and the lifting and adjusting device 2 includes a frame beam 1, a lifting and adjusting plate 3 and a lifting screw 5; the frame beam 1 is installed on the gantry frame, and the frame beam 1 is used to bear the gravity of the entire yarn hanging device and the woven fabric; the lifting and adjusting plate 3 is provided with two layers, the upper lifting and adjusting plate is fixedly connected to the frame beam 1 and is threadedly connected to the upper end of the lifting screw 5, and the lower lifting and adjusting plate is threadedly connected to the lower end of the lifting screw 5. During the initial weaving and weaving process, the lifting screw 5 can be adjusted according to the process and weaving operation requirements to drive the lower lifting and adjusting plate to move up and down, so as to realize the height adjustment of the whole set of yarn hanging device to achieve the optimal weaving height.

[0020] The middle of the guide column 4 is an optical axis, and threads are set at the upper and lower ends. The upper end of the guide column is fixedly connected to the lower lifting and adjusting plate by threads, and the lower end is fixedly connected to the toothed uniform yarn distribution ring 7 by threads; a guide hole is provided on the shaping and pressurizing cover plate 6, and the guide optical axis in the middle of the guide column 4 passes through the guide hole of the shaping and pressurizing cover plate 6, providing guiding constraints for the lifting and lowering movement of the shaping and pressurizing cover plate 6.

[0021] The shaped pressure cover plate 6 has a contoured matching groove processed inside, referring to Figure 2 The shaping and pressurizing cover plate 6 can be lifted and lowered manually, or an electric lifting mechanism can be installed on the lifting and adjusting plate 3 to drive the shaping and pressurizing cover plate 6 to lift and lower. When the shaping and pressurizing cover plate 6 is lowered to a certain position, the contour matching groove inside it cooperates with the toothed groove type uniform yarn distribution ring 7 to achieve compression and shaping of the yarn after being tied and prevent the yarn from moving.

[0022] like Figure 3 and Figure 5The tooth-groove type uniform yarn distribution ring 7 is processed with equally spaced segmented tooth columns according to the process yarn density. The spacing and tooth-groove depth of the segmented tooth columns can be designed according to the process requirements. When the yarn is tied, it can be equally spaced by relying on the tooth columns, and the tooth columns can be used to constrain the yarn to be uniformly spaced circumferentially, so as to achieve uniform annular arrangement of the yarn and ensure uniform density of the warp yarn of the fabric.

[0023] like Figure 4 As shown, the toothed uniform yarn distribution ring 7 can be designed into different cross-sectional shapes, such as triangle, square or other special shapes, according to the cross-section of the three-dimensional fabric to be woven, so that the internal contour matching groove of the corresponding shaping pressure cover plate 6 is processed into a shape matching with the toothed uniform yarn distribution ring 7.

[0024] Working principle: the toothed uniform yarn distribution ring 7 is fastened with yarn and has equally spaced dividing teeth for uniform division and screening; with the cooperation of the guide column, the shaping pressure cover plate 6 is adjusted to make it tightly fit with the toothed uniform yarn distribution ring 7; the toothed uniform yarn distribution ring is connected to the lower lifting adjustment plate through the guide column 4, and the lifting screw 5 works to drive the lower lifting adjustment plate and the toothed uniform yarn distribution ring to a suitable adjustment height for textile operations.

[0025] In summary, the tooth-groove type uniform yarn hanging device provided by the present invention can realize equal-distance constraints on the yarn along the contour direction during the yarn hanging process, avoiding uneven yarn arrangement, thereby solving the problem that during the weaving process of special-section three-dimensional fabrics, the yarn is complexly arranged along the cross-sectional contour of the fabric, and is prone to slipping along the contour direction, resulting in uneven yarn density and even failing to meet the process requirements.

Claims

1. A tooth-groove type uniform yarn hanging device, characterized in that: It includes a lifting and adjusting device, a guide column, a shaping and pressurizing cover plate and a toothed and grooved uniform yarn distribution ring; The lifting and adjusting device is installed on the gantry frame to bear the gravity of the entire yarn hanging device and the woven fabric and to adjust the height of the entire yarn hanging device; The upper end of the guide column is connected to the lifting and lowering adjustment device, and the lower end is connected to the toothed groove type uniform yarn distribution ring, which is used to connect and fix the toothed groove type uniform yarn distribution ring and the lifting and lowering of the shaping and pressurizing cover plate; The shaping and pressurizing cover plate is sleeved on the guide column to press the yarn after being hung to prevent the yarn from moving; The toothed uniform yarn distribution ring is used to achieve uniform annular distribution of the yarn.

2. The tooth groove type uniform yarn hanging device according to claim 1 is characterized in that: The lifting and adjusting device comprises a frame crossbeam, a lifting and adjusting plate and a lifting screw; the frame crossbeam is installed on the gantry frame and is used to bear the gravity of the entire yarn hanging device and the woven fabric; the lifting and adjusting plate is provided with two layers, the upper lifting and adjusting plate is fixedly connected to the frame crossbeam and is threadedly connected to the upper end of the lifting screw, and the lower lifting and adjusting plate is threadedly connected to the lower end of the lifting screw. By adjusting the lifting screw, the lower lifting and adjusting plate is driven to move up and down, which is used for height adjustment of the entire set of yarn hanging device.

3. The tooth groove type uniform yarn hanging device according to claim 1, characterized in that: The middle of the guide column is an optical axis, and threads are arranged at both ends.

4. The tooth groove type uniform yarn hanging device according to claim 1, characterized in that: The shaped pressurized cover plate is provided with a guide hole for providing a guide constraint for the lifting and lowering of the shaped pressurized cover plate; The pressurized shaping cover plate is provided with a contoured matching groove inside for pressing the yarn.

5. The tooth groove type uniform yarn hanging device according to claim 1, characterized in that: The tooth-groove type uniform yarn distribution ring is provided with equally spaced segmentation tooth columns for equally spaced segmentation and circumferential constraint of the hung yarn.

Images