CN102587010B - Yarn sheet tension adjusting device for multilayer carbon fiber angle interlocking loom - Google Patents

Abstract

The invention discloses a yarn tension regulating device for a carbon fiber multi-layer corner loom. Arranged, and the longitudinal section is V-shaped, and the V-shaped opening is opposite to the weaving mouth of the loom; the tension adjustment bracket is equipped with a pair of let-off rollers and swing tension rollers arranged in sequence along the let-off direction; the let-off rollers are rotatably connected to the swing On the arm shaft, the swing arm shaft is rotatably connected to the tension adjustment bracket; the swing tension roller is rotatably connected to the swing roller support shaft, and the swing roller support shaft is fixedly connected to the swing arm shaft through the swing arms fixed at both ends. A spring is clamped between the side of the swing arm close to the loom fell and the frame. The invention can keep the yarn in a tight state all the time, has a simple structure and remarkable effect; moreover, the invention has a compact structure, a small occupied area, a small volume and good stability.

Description

Yarn Tension Adjustment Device for Carbon Fiber Multi-layer Angle-knit Loom

technical field

The invention relates to a loom yarn tension regulating device, in particular to a carbon fiber multi-layer corner loom piece yarn tension regulating device. the

Background technique

With the development of engineering technology and material science, the requirements for material properties are getting higher and higher. The research, development and application of advanced composite materials have become one of the important contents of high-tech material technology, and carbon fiber and its carbon fiber composite materials occupy a pivotal position in this field. Due to the unique and excellent performance of carbon fiber composite materials, it is widely used in the aviation field, especially in the aircraft manufacturing industry. The multi-layer corner weaving technology is a new composite skeleton weaving technology developed on the basis of the multi-layer warp weaving technology. Due to the large thickness of the finished carbon fiber fabric, the non-wear-resistant properties of the carbon fiber surface, and the large number of weaving layers, there are certain special requirements for the design and research of the tensioning part of the loom. During weaving, the warp yarn is required to always have tension and maintain a tensioned state. The relevant patents retrieved at present are: 1) Chinese utility model patent 200420122333.3 discloses a kind of constant tension warp let-off device, which is to add a thread warehouse between the let-off roller of the loom and the back beam of the loom, and stores the A certain length of warp, and the tension of the warp is provided by an air spring. Adjust the working pressure of the air spring to adjust the warp tension. 2) Chinese utility model patent 201020620755.9 discloses a constant tension device, which consists of a front guide wheel, a fixed wheel, a rear guide wheel, a broadband network cable, a bracket, a counterweight shaft, a counterweight bar, a counterweight, and a constant tension wheel. It is characterized in that The front end of the lower part of the bracket is provided with a counterweight shaft, on which a counterweight rod is arranged, the counterweight rod can rotate around the counterweight shaft, the other end of the counterweight rod is provided with a constant tension wheel, the middle part of the counterweight rod is provided with a counterweight, and the counterweight It can slide along the counterweight bar; the upper front end of the support is provided with a front guide wheel, the upper rear end of the support is provided with a rear guide wheel, and a fixed wheel is provided between the front guide wheel and the rear guide wheel on the support. The beneficial effect of the invention is that the constant tension device has a simple structure and convenient tension adjustment, and is suitable for the production of broadband network cables. When the above-mentioned patents are used for tension adjustment of multi-layer yarns, they are bulky, require a large installation space, and have high requirements for the factory building, which increases the infrastructure cost of the factory building. the

Contents of the invention

In order to solve the technical problems existing in the known technology, the present invention provides a carbon fiber multi-layer angle knitting machine sheet yarn tension adjustment device. When the device is used for tension adjustment of multi-layer sheet yarns, it has a compact structure and a small footprint. small volume. the

The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: a carbon fiber multi-layer angle knitting machine piece yarn tension adjustment device, including a frame; the upper tension adjustment bracket and the lower tension adjustment bracket are installed on the frame Tension adjustment bracket, the upper tension adjustment bracket and the lower tension adjustment bracket are symmetrically arranged up and down, and the longitudinal section is V-shaped, and the V-shaped opening is opposite to the weaving mouth of the loom; pairs are installed on the upper tension adjustment bracket. The upper warp let-off roller and the upper swing tension roller arranged in sequence along the warp let-off direction; the upper warp let-off roller is rotatably connected to the upper swing arm shaft, and the upper swing arm shaft is rotatably connected to the upper tension adjustment bracket; The upper swing tension roller is rotatably connected to the upper swing roller support shaft, and the upper swing roller support shaft is fixedly connected to the upper swing arm shaft through the upper swing arms fixed at both ends thereof, and the upper swing arm The lower end of the upper swing arm is connected to the support shaft of the upper swing roller, and the upper end of the upper swing arm is connected to the rotating shaft of the upper swing arm; it is clamped between the lower part of the upper swing arm near the weaving mouth of the loom and the frame There is a spring I; the lower let-off roller and the lower swing tension roller arranged in turn along the let-off direction are installed in pairs on the lower part of the tension adjustment bracket, and the lower part of the let-off roller is connected to the lower swing arm rotating shaft in rotation, and the lower part The rotating shaft of the swing arm is rotatably connected to the lower tension adjustment bracket; the lower oscillating tension roller is rotatably connected to the lower swing roller support shaft, and the lower swing roller support shaft is fixedly connected by the lower swing arm affixed to its two ends. On the shaft of the lower swing arm, the support shaft of the lower swing roller is located above the shaft of the lower swing arm; a spring is clamped between the upper part of the lower swing arm close to the weaving mouth of the loom and the frame II. the

The upper end of the upper swing arm is provided with a counterweight support rod I, and the counterweight support rod I and the spring I are respectively arranged on both sides of the upper swing arm; the upper end of the lower swing arm and the lower part The support shaft of the swing roller is fixedly connected, the middle part of the lower swing arm is fixedly connected with the rotating shaft of the lower swing arm, and a counterweight installation hole and a counterweight support rod II are arranged at the lower end of the lower swing arm, and the counterweight supports The rod II and the spring II are arranged on the same side of the lower swing arm. the

Both the upper tension adjusting bracket and the lower tension adjusting bracket are formed by connecting at least two segments. the

The upper let-off roller, the lower let-off roller, the upper oscillating tension roller and the lower oscillating tension roller are all made of lightweight SCP composite steel pipes. the

Both the counterweight support rod I and the counterweight support rod II are inclined. the

The advantages and positive effects of the present invention are: 1) In the let-off direction, a spring is used to compress the swing arm, and the swing arm drives the swing tension roller on the support shaft of the swing arm to compress the yarn so that the yarn is always in tension 2) The upper and lower tension adjustment brackets, which are symmetrically arranged up and down in a V-shaped longitudinal section, are installed on the frame, which can make the yarn layout clear without interference and ensure that the multi-layer yarn enters the weaving smoothly. The machine has a compact structure, a small footprint, and a small volume; the vertical force of the yarn acting on the upper and lower tension adjustment brackets can be partially offset, which improves the stress on the frame and enhances the stability of the device; 3) sending Both the warp roll and the oscillating tension roll are made of lightweight SCP composite steel pipe, which reduces the wear on the yarn. the

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a sectional enlarged view of part A of Fig. 1;

Fig. 3 is a sectional enlarged view of part B of Fig. 1;

Fig. 4 is the C direction view of Fig. 2;

Fig. 5 is a D-direction view of Fig. 3 . the

Among the figure: 1, frame, 2, lower tension adjustment support, 3. upper tension adjustment support, 4, counterweight support rod 1, 5, upper swing arm rotating shaft, 6, upper warp let-off roller, 7, upper swing arm, 8. Spring I, 9. Upper swing roller support shaft, 10. Upper swing tension roller, 11. Warp yarn, 12. Lower swing roller support shaft, 13. Lower swing tension roller, 14. Spring II, 15. Lower swing Arm rotating shaft, 16, bottom let-off roller, 17, bottom swing arm, 18, counterweight support bar II. the

Detailed ways

In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Figures 1 to 5, a carbon fiber multi-layer corner loom piece yarn tension adjustment device, including a frame 1, an upper tension adjustment bracket 3 and a lower tension adjustment bracket 2 are installed on the frame 1, and the upper tension adjustment bracket 3 and the lower tension adjustment bracket 2 are symmetrically arranged up and down, and the longitudinal section is V-shaped, and the V-shaped opening is opposite to the weaving mouth of the loom. the

The upper warp let-off roller 6 and the upper swing tension roller 10 arranged in pairs along the warp let-off direction are installed in pairs on the upper part tension adjustment bracket 3; Rotationally connected to the upper tension adjustment bracket 3; the upper swing tension roller 10 is rotatably connected to the upper swing roller support shaft 9, and the upper swing roller support shaft 9 is fixed to the upper swing arm through the upper swing arm 7 fixed at its two ends On the rotating shaft 5, the lower end of the upper swing arm 7 is fixedly connected with the upper swing roller support shaft 9, and the upper end of the upper swing arm 7 is fixedly connected with the upper swing arm rotating shaft 5; A spring I8 is clamped between the frames 1 . the

The lower warp let-off roller 16 and the lower swing tension roller 13 arranged in turn along the warp let-off direction are installed in pairs on the lower tension adjustment bracket 2; Rotationally connected to the lower tension adjustment bracket 2; the lower swing tension roller 13 is rotatably connected to the lower swing roller support shaft 12, and the lower swing roller support shaft 12 is fixed to the lower swing arm through the lower swing arm 17 fixed at its two ends. On the rotating shaft 15, the lower swing roller supporting shaft 12 is positioned above the lower swing arm rotating shaft 15; a spring II14 is clamped between the upper part of the lower swing arm 17 and the frame 1 near the weaving mouth of the loom. the

The upper end of the lower swing arm 17 is fixedly connected to the lower swing roller support shaft 12, the middle part of the lower swing arm 17 is fixedly connected to the lower swing arm shaft 15, and the lower end of the lower swing arm 17 is provided with a counterweight installation hole and a counterweight support rod II18 , the counterweight support rod II18 and the spring II14 are arranged on the same side of the lower swing arm 17 . The top of the upper swing arm 7 is provided with a counterweight support rod 14, and the counterweight support rod 14 and the spring I8 are respectively located on both sides of the upper swing arm 7. The counterweight support rod I4 and the counterweight support rod II14 are usually inclined. the

Both the upper tension adjusting bracket 3 and the lower tension adjusting bracket 2 can be formed by connecting at least two sections. To facilitate processing and transportation. the

The upper let-off roller 6, the lower let-off roller 16, the upper swing tension roller 10 and the lower swing tension roller 13 are all made of lightweight SCP composite steel pipes to reduce wear on the yarn. the

In this example, there are 90 swinging tension rollers arranged in a V shape in the longitudinal section, which can complete the tension adjustment of 90 layers of warp yarns. the

Working principle of the present invention:

The yarn enters through the let-off roller and is drawn out through the swinging tension roller. Under the action of the spring, the yarn is always in a taut state. The expansion and contraction of the spring can store the redundant yarn generated during the alternating process of shedding and hedging, ensuring that the yarn is always in a tensioned state during the weaving process. the

When the number of yarns in a single piece of yarn is small, the loom pulls the piece of yarn, and the pressure on the spring is not enough to make it deform enough. Apply the torque opposite to the spring torque released by the spring, so that the swing arm compresses the spring, causing the spring to produce sufficient deformation, compresses the swing arm, and the swing arm drives the swing cylinder support shaft and the swing tension roller to compress the yarn, so that the yarn tense. the

When the number of yarns in a single piece of yarn is large, add a counterweight in the counterweight installation hole, or hang an additional counterweight through the counterweight hole to balance the lower swing arm structure, so that the lower swing roller support shaft remains on the lower swing arm shaft to prevent the lower swing arm from turning upside down. the

Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art Under the enlightenment of the present invention, people can also make many forms without departing from the purpose of the present invention and the scope of protection of the claims, and these all belong to the protection scope of the present invention. the

Claims (5)

1. a carbon fiber multi-layer corner loom piece yarn tension adjustment device, is characterized in that, comprises frame; Described frame is equipped with upper tension adjustment support and lower tension adjustment support, and described upper tension adjustment support and all The lower tension adjustment bracket is symmetrically arranged up and down, and the longitudinal section is V-shaped, and the V-shaped opening is opposite to the weaving mouth of the loom; The upper warp let-off roller and the upper swing tension roller arranged in pairs along the warp let-off direction are mounted on the upper tension regulating bracket; the upper warp let-off roller is rotatably connected to the upper swing arm shaft, It is rotatably connected to the upper tension adjustment bracket; the upper oscillating tension roller is rotatably connected to the upper pendulum roller support shaft, and the upper pendulum roller support shaft is affixed to the On the shaft of the upper swing arm, the lower end of the upper swing arm is connected to the support shaft of the upper swing roller, and the upper end of the upper swing arm is connected to the shaft of the upper swing arm; A spring I is clamped between the lower part of one side and the frame; The lower warp let-off roller and the lower swing tension roller arranged in pairs along the warp let-off direction are installed in pairs on the lower tension adjustment bracket, and the lower warp let-off roller is rotatably connected to the lower swing arm shaft, and the lower swing arm shaft rotates Connected to the lower tension adjustment bracket; the lower swing tension roller is rotatably connected to the lower swing roller support shaft, and the lower swing roller support shaft is fixed to the lower swing arm through the lower swing arms fixed at both ends On the shaft of the swing arm, the support shaft of the lower swing roller is located above the shaft of the lower swing arm; a spring II is clamped between the upper part of the lower swing arm close to the weaving mouth of the loom and the frame. 2. The carbon fiber multi-layer angle knitting machine piece yarn tension adjustment device according to claim 1, characterized in that, a counterweight support rod I is provided on the upper end of the upper swing arm, and the counterweight support rod I and The spring I is respectively arranged on both sides of the upper swing arm; the upper end of the lower swing arm is fixedly connected to the support shaft of the lower swing roller, and the middle part of the lower swing arm is fixedly connected to the rotating shaft of the lower swing arm. A counterweight installation hole and a counterweight support rod II are provided at the lower end of the lower swing arm, and the counterweight support rod II and the spring II are arranged on the same side of the lower swing arm. 3. The yarn tension regulating device of carbon fiber multi-layer angle knitting machine according to claim 1, characterized in that, both the upper tension regulating bracket and the lower tension regulating bracket are connected by at least two segments. 4. The carbon fiber multi-layer angle knitting machine sheet yarn tension regulating device according to claim 1, characterized in that, the upper warp let-off roller, the lower warp let-off roller, the upper swing tension roller and the The lower swinging tension rollers are all made of lightweight SCP composite steel pipes. 5. The device for adjusting the yarn tension of the carbon fiber multi-layer angle knitting machine according to claim 2, characterized in that, the counterweight support rod I and the counterweight support rod II are both arranged obliquely.

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