CN202440624U - Let-off device for carbon fiber multilayer angle-link loom - Google Patents

Abstract

The utility model discloses a let-off device for a carbon fiber multilayer angle-link loom. The let-off device for the carbon fiber multilayer angle-link loom comprises a let-off creel, a sheet yarn tension-adjusting device and a yarn gathering device, wherein the yarn gathering device is disposed directly in front of a loom cloth-fell, the sheet yarn tension-adjusting device is arranged directly in front of the yarn gathering device, and the let-off creel is placed directly in front of the sheet yarn tension-adjusting device. The let-off creel comprises a beam frame, a plurality of beam shaft cores are arranged on the beam frame, a plurality of beam yarn spools are fixedly disposed on each beam shaft core, and a driving mechanism is arranged on each beam shaft core. The let-off device for the carbon fiber multilayer angle-link loom enables yarn to keep constant tension in the process of let-off, and is compact in structure, less in occupied space, and suitable for multilayer weaving of the warp in bulk.

Description

Let-off device of carbon fiber multi-layer angle knitting machine

technical field

The utility model relates to a let-off device for a loom, in particular to a let-off device for a carbon fiber multi-layer corner loom.

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 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. In view of the characteristics of large thickness of finished carbon fiber fabric, non-wear-resistant carbon fiber surface and many weaving layers, there are special requirements for the design and research of the let-off part of the loom. The relevant patents retrieved at present are: 1) Chinese utility model patent 03255599.7 discloses a warp let-off device of a glass fiber loom, including a drive control device, a tension adjustment device, a weaving shaft, a warp let-off shaft, and a worm wheel, a worm, The transmission device composed of the warp let-off gear and the weaving shaft transmission gear, this device solves the problem that the production of hard yarn mesh products needs to move the warp let-off quickly, and is especially suitable for the delivery of yarn sliver in the production of glass fiber mesh cloth. But the utility model is only suitable for the weaving of single-layer fabrics, and is only suitable for the weaving of circular fabrics in cross section. 2) Chinese utility model patent 200910186427.4 discloses a multi-warp beam let-off device, which includes a plurality of warp beam bobbins installed on the warp beam core, each warp beam bobbin can rotate on the warp beam core, each The warp beam bobbins are respectively driven by independent drive mechanisms. Each warp beam bobbin has its own warp yarn tension. In practical application, each warp beam bobbin is wound with warp yarn of a single type of fiber and count. There are multi-color and multi-variety warp yarns on the format. Simultaneous warp let-off through multiple warp beam bobbins, but since each warp beam bobbin bobbin is individually driven and controlled, each warp bobbin bobbin has its own warp yarn tension, and the same yarn tension on the same mandrel cannot be guaranteed, that is Ensure that the yarn tension of each layer is consistent. Simultaneously for the fabric of special-shaped cross-section, this device also can't finish let-off. 3) Chinese utility model patent 201010153813.6 discloses a carbon fiber creel, including a frame, a spindle rod and a carbon fiber tube, the end of the spindle rod is provided with a tension spring and a nut, and the nut compresses the tension spring on the The outer end plate of the carbon fiber cylinder. By tightening or loosening the nut, the pressure of the tension spring can be adjusted to increase or decrease the friction force between the moving friction plate and the fixed friction plate, thereby adjusting the tension of the released carbon fiber. However, in the process of yarn weaving, as the diameter of the carbon fiber bobbin changes, it cannot automatically adjust the tension of the yarn. When the above-mentioned patents are used for weaving multi-layer warp 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. And none of the existing let-off devices can perform tension control and warp let-off to single yarn and sheet yarn at the same time.

Utility model content

In order to solve the technical problems in the known technology, the utility model provides a let-off device of a carbon fiber multi-layer corner loom, which can make the tension of the same layer of yarns consistent.

The technical solution adopted by the utility model for solving the technical problems existing in the known technology is: a warp let-off device of a carbon fiber multi-layer corner loom, comprising a warp let-off beam frame, a sheet yarn tension regulating device and a yarn gathering device, The yarn device is located directly in front of the weaving mouth of the loom, the piece yarn tension adjustment device is located directly in front of the yarn gathering device, and the warp let-off beam frame is located directly in front of the piece yarn tension adjustment device; the warp let-off beam frame includes a warp beam machine The warp beam frame is equipped with a plurality of warp beam cores, each warp beam core is fixed with a plurality of warp beam bobbins, and each warp beam core is provided with a driving mechanism.

The utility model has the advantages and positive effects that: the tension of the yarn can be kept constant during the warp-feeding process, the structure is compact, the occupied space is small, and it is suitable for multi-layer weaving of a large number of warp yarns.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic structural view of the warp let-off creel frame of the utility model;

Fig. 3 is a structural schematic diagram of a single warp beam shaft core driving mechanism of the warp let-off creel of the utility model;

Fig. 4 is an enlarged view of part A of Fig. 2;

Fig. 5 is a structural schematic diagram of the utility model sheet yarn tension regulating device;

Fig. 6 is a sectional enlarged view of part A of Fig. 5;

Fig. 7 is an enlarged cross-sectional view of part B of Fig. 5;

Fig. 8 is the C direction view of Fig. 6;

Fig. 9 is a D direction view of Fig. 7;

Fig. 10 is a schematic structural view of the yarn gathering device of the present invention;

Fig. 11 is an enlarged view of part A of Fig. 10;

Fig. 12 is a structural schematic diagram of a part of the let-off creel of the utility model;

Fig. 13 is a partial side view of Fig. 12, that is, a schematic diagram of a spindle bar unit of the let-off creel of the present utility model;

Fig. 14 is a sectional view of Fig. 13, that is, a structural schematic diagram of the utility model in which the warp let-off creel bobbin is fixed on the spindle bar;

Fig. 15 is an enlarged view of part A of Fig. 12, that is, a structural schematic diagram of the tension swing arm part of the let-off creel of the utility model;

Fig. 16 is a schematic structural view of the single yarn tensioning frame of the present invention;

Figure 17 is an enlarged view of part I of Figure 16;

Fig. 18 is a schematic diagram of the connection structure of the tension spring sheet of the single yarn tension frame of the present invention.

Detailed ways

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

Please refer to Fig. 1, a warp let-off device of a carbon fiber multi-layer corner loom, including a warp let-off creel 1, a yarn tension adjustment device 3 and a yarn gathering device 5, and the yarn gathering device 5 is located directly in front of the loom's weaving mouth , The sheet yarn tension regulating device 3 is located directly in front of the yarn gathering device 5, and the let-off creel 1 is located directly in front of the sheet yarn tension regulating device 3.

Please refer to Fig. 2～Fig. 4, above-mentioned warp let-off creel frame 1 comprises warp beam frame 1-1, and warp beam shaft core 1-3 is installed on the warp beam frame 1-1, warp beam shaft core 1-1 3 are arranged in a row: front and rear, and up and down; each warp beam axis core 1-3 is provided with a piece of yarn guide roller 1-8, and the piece of yarn guide roller 1-8 is used to support Warp yarn 6 prevents it from sagging, interfering with the warp yarn below and interfering with each other, so that multiple layers of warp yarn are separated from each other and sent to the loom. The arrangement of the above-mentioned warp beam cores 1-3 occupies a small area, has a simple structure, and the yarn layout is clear without interference, which can ensure that the multi-layer warp yarns enter the loom smoothly.

A plurality of warp beam bobbins 1-2 are fixedly installed on each warp beam core 1-3, and each warp beam core 1-3 is provided with a driving mechanism. Multiple warp beam bobbins 1-2 adopt a warp beam core 1-3 transmission, which can ensure the synchronous movement of warp beam bobbins 1-2 on the same warp beam core 1-3, thereby ensuring the same layer of yarn The tension is consistent.

Above-mentioned driving mechanism comprises servomotor 1-6, speed reducer 1-7 and worm gear 1-4, worm screw 1-5, and worm gear 1-4 is fixedly installed on the shaft core 1-3 of warp beam, and meshes with worm screw 1-5, Worm screw 1-5 is connected with reducer 1-7, and reducer 1-7 is driven by servomotor 1-6. Servomotor 1-6 drives worm screw 1-5 and worm gear 1-4 through speed reducer 1-7, and worm gear 1-4 drives warp beam shaft core 1-3 to rotate, thereby drives warp beam bobbin 1-2 to rotate.

Adopt the structure that a plurality of warp beam bobbins 1-2 are installed on the warp beam core 1-3, each warp beam bobbin 1-2 can be made small and light, and the replacement of the bobbin is convenient.

In this embodiment, there are 10 rows of warp beam cores 1-3 in front and rear rows, 6 layers of warp beam cores 1-3 in rows up and down, and 6 layers of warp beam cores 1-3 are arranged symmetrically. Warp beam bobbins 1-2 can complete the let-off of 360 warp beam bobbins 1-2.

The multiple warp beam bobbins of the warp let-off creel are driven by a warp beam core, which ensures that the tension of the same layer of yarn is consistent. Small footprint and simple structure. The structure in which a plurality of warp beam bobbins is installed on one warp beam core can make each warp beam bobbin small and light, and facilitate the replacement of the warp bobbin bobbins. The above warp let-off creel not only realizes the weaving of carbon fiber fabrics with different widths, but also ensures the same tension of the same layer of yarn, and facilitates the replacement of warp beam bobbins.

In order to further keep the tension of the sheet yarn constant, please refer to Fig. 5 to Fig. 9, the above-mentioned sheet yarn tension adjustment device 3 includes a sheet yarn tension adjustment frame 3-1, and an upper tension adjustment device is installed on the sheet yarn tension adjustment frame 3-1. The support 3-3 and the lower tension adjustment support 3-2, the upper tension adjustment support 3-3 and the lower tension adjustment support 3-2 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.

Upper warp let-off rollers 3-6 and upper swinging tension rollers 3-10 arranged in pairs along the warp let-off direction are mounted on the upper tension adjustment bracket 3-3; upper warp let-off rollers 3-6 are rotatably connected to the upper swing arm shaft 3-5, the upper swing arm shaft 3-5 is rotatably connected to the upper tension adjustment bracket 3-3; the upper oscillating tension roller 3-10 is rotatably connected to the upper oscillating roller supporting shaft 3-9, and the upper oscillating roller supporting shaft 3-9 is fixedly connected on the upper swing arm rotating shaft 3-5 through the upper swing arm 3-7 fixedly connected to its two ends, and the lower end of the upper swing arm 3-7 is fixedly connected with the upper swing roller supporting shaft 3-9, and the upper swing The upper end of the arm 3-7 is affixed to the upper swing arm rotating shaft 3-5; a spring I3 is clamped between the lower part of the upper swing arm 3-7 near the weaving mouth of the loom and the yarn tension adjustment frame 3-1 -8.

Lower warp let-off rollers 3-16 and lower swing tension rollers 3-13 are installed in pairs on the lower tension adjustment bracket 3-2; the lower warp let-off rollers 3-16 are rotatably connected to the lower swing arm shaft 3-15, the lower swing arm shaft 3-15 is rotatably connected to the lower tension adjustment bracket 3-2; the lower swing tension roller 3-13 is rotatably connected to the lower swing roller support shaft 3-12, and the lower swing roller support shaft 3-12 is fixedly connected on the lower swing arm rotating shaft 3-15 through the lower swing arm 3-17 fixedly connected to its two ends, and the lower swing roller supporting shaft 3-12 is positioned at the top of the lower swing arm rotating shaft 3-15; Arm 3-17 is clamped with spring II3-14 between the upper part of one side near loom weaving mouth and sheet yarn tension adjustment frame 3-1.

The upper end of the lower swing arm 3-17 is affixed to the lower swing roller support shaft 3-12, the middle part of the lower swing arm 3-17 is affixed to the lower swing arm rotating shaft 3-15, and the lower end of the lower swing arm 3-17 is provided with The counterweight mounting hole and the counterweight support rod II3-18, the counterweight support rod II3-18 and the spring II3-14 are arranged on the same side of the lower swing arm 3-17. The top of the upper swing arm 3-7 is provided with a counterweight support rod 13-4, and the counterweight support rod 13-4 and the spring I3-8 are respectively located on both sides of the upper swing arm 3-7. The counterweight support rod I3-4 and the counterweight support rod II3-14 are usually arranged in an inclined manner.

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

The upper warp let-off roller 3-6, the lower warp let-off roller 3-16, the upper swing tension roller 3-10 and the lower swing tension roller 3-13 are all made of lightweight SCP composite steel pipes to reduce damage to the yarn wear and tear.

Electromagnetic brakes are installed on the upper swing arm rotating shaft 3-5 and the lower swing arm rotating shaft 3-15. When the loom is beating up, in order to prevent the beating force from being too large and causing the yarn to be blocked at the beating point, an electromagnetic brake is set. When weaving, the electromagnetic brake tightly holds the rotating shaft of the swing arm, so that the rotating shaft of the swing arm remains stationary and does not rotate with the beating force, so as to avoid yarn congestion. Electromagnetic brake unclamps the swing arm rotating shaft after this weft beating motion finishes, to facilitate loom to carry out weaving motion next time.

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 above-mentioned sheet yarn tension adjustment device:

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.

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 tension.

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 above-mentioned sheet yarn tension adjusting device has the following advantages:

1) In the let-off direction, the 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 a tight state, the structure is simple, and the effect is remarkable; 2) The upper and lower tension adjustment brackets are installed on the frame with a vertical section in a V shape and symmetrically arranged up and down, which can make the yarn layout clear without interference, and ensure that the multi-layer yarn enters the loom smoothly, and has a compact structure and a small footprint , small size; the vertical force of the yarn acting on the upper and lower tension adjustment brackets can be partially offset, which improves the stress condition of the frame and enhances the stability of the device; 3) The warp let-off roller and the swing tension roller are light High-quality SCP composite steel pipe reduces the wear on the yarn.

In order to reduce the occupied space of the equipment, please refer to Figures 10 to 11, the above-mentioned yarn gathering device 5 includes a yarn gathering frame 5-5; The longitudinal section of the roller support 5-1 is a V-shaped opening opposite to the loom; on the upper half of the yarn gathering roller support 5-1, a plurality of mutually parallel upper layer yarn feeding and gathering rollers 5-2 are installed, and all upper layers The yarn-feeding rolls 5-2 are located in the same plane; the upper-layer yarn-feeding rolls 5-3 are arranged obliquely below each upper-layer yarn-feeding roll 5-2 along the warp-feeding direction, and all the upper-layer yarn-feeding rolls The rollers 5-3 are located in the same plane, and the plane where all the upper-layer yarn-feeding rollers 5-3 are located is parallel to the plane where all the upper-layer yarn-feeding rollers 5-2 are located; There are a plurality of lower-layer yarn-feeding rollers 5-6 parallel to each other installed on the top, and all the lower-layer yarn-feeding rollers 5-6 are located in the same plane; The warp direction is provided with the lower yarn output scoop rollers 5-7, and all the lower yarn output scrum rollers 5-7 are located in the same plane, and the plane where all the lower yarn output scrum rollers 5-7 is located is the same as that of all the lower yarn feed rolls. The planes where 5-6 are located are parallel.

The above-mentioned yarn gathering device gathers all the yarns sent by the let-off device to a height of no more than 300mm, and minimizes the distance between the yarn gathering part and the warp letting-off part of the equipment, and considers the particularity of carbon fibers that are easy to bend and wear. The yarn gathering roller support with a V-shaped longitudinal section can gather dozens of layers of yarn up to 4m sent by the let-off device to a height of no more than 300mm within a distance of about 4m. The length of the yarn gathering device is only The height of the yarn sent out by the let-off device is about 30%, and the height of the yarn gathering device is only about 40% of the height of the yarn sent by the let-off device. The footprint of the equipment is reduced, and the yarn bending angle is minimized as much as possible.

In order to make the structure of the yarn gathering roller support more compact, the force is more reasonable, and the yarn routing is more convenient. The numbers of 5-6 and the yarn-feeding rollers 5-7 of the lower layer are all equal, and the yarn-feeding rollers 5-2 of the upper layer and the yarn-feeding rollers 5-6 of the lower layer are symmetrically arranged up and down, and the yarn-feeding rollers 5-6 of the upper layer are arranged symmetrically. -3 is symmetrically arranged up and down with the lower layer's yarn-out and yarn-winding rollers 5-7.

In order to reduce the wear and tear on the yarn, the upper yarn feeding roll 5-2, the upper yarn output rolling roll 5-3, the lower yarn feeding roll 5-6 and the lower yarn output rolling roll 5-7 all pass through the Bearing is installed on the yarn gathering roller support 5-1. In the yarn gathering process, under the pulling of the yarn, the yarn gathering roller rotates together with the yarn.

In order to further reduce the wear and tear on the yarn, the upper layer yarn feeding roller 5-2, the upper layer yarn outlet roller 5-3, the lower yarn inlet roller 5-6 and the lower yarn outlet roller 5-7 Both are made of SCP composite steel pipe.

The above-mentioned yarn gathering device can gather 20,000 yarns with 90 layers up to 4m to no more than 300mm.

The working principle of the above yarn gathering device:

The above yarn gathering device is installed between the warp let-off part of the carbon fiber multi-layer angular loom and the loom mouth part, and the yarn sent out from the warp let-off part first passes through the yarn gathering roller outside the yarn gathering roller support and then passes out. The yarn gathering roller follows an S-shaped route, gathers in the V-shaped opening of the yarn gathering roller support, and then enters the loom weaving mouth.

The above yarn gathering device has the following advantages: 1) The yarn gathering roller support adopts a V-shaped structure, which can gather dozens of layers of yarn up to 4m sent by the let-off device to a height of no more than 300mm within a distance of about 4m. The length of the yarn device is only about 30% of the height of the yarn sent out by the let-off device, and the height of the yarn gathering device is only about 40% of the height of the yarn sent out by the let-off device. Folding within a distance, the structure is compact, the floor area is small, and the bending angle of the yarn is minimized as much as possible; 2) The yarn gathering roller support adopts a V-shaped structure, which is symmetrical up and down, so that the yarn is vertical to the yarn gathering roller. The force is partially offset, which improves the stress condition of the yarn gathering frame; 3) The double-layer yarn gathering rollers arranged symmetrically up and down in a V shape can effectively avoid the interference between multi-layer yarns; 4) The yarn gathering rollers are made of lightweight SCP composite Steel tubes reduce wear on yarns.

When weaving special-shaped skeleton fabrics, the above-mentioned let-off device should also include a warp let-off creel 2 and a single yarn tensioning frame 4, the single yarn tensioning frame 4 is located directly in front of the above-mentioned yarn gathering device 5, and the warp let-off creel 2 is located at the single yarn tensioning frame 4. The place ahead of the yarn tension frame 4, in order to make the equipment compact, preferably the let-off creel 2 is placed on the let-off creel 1.

In order to keep the tension of the single yarn constant, please refer to Fig. 12 to Fig. 15 for details, the above-mentioned let-off creel 2 includes a creel frame body 2-4, and a plurality of spindle bars 2-1 are fixedly mounted on the creel frame body. The arrangement of the rods 1 is as follows: the front and back are in a row, and the top and bottom are in layers.

Each spindle bar 2-1 is provided with two left and right symmetrical yarn tube cover rollers 2-2. 1 is connected through the rotation of the bearing 2-15, and each bobbin sleeve roller 2-2 is provided with an inner bobbin fixing tapered sleeve 2-13 on the inner side, and an outer bobbin fixing tapered sleeve 2-5 is arranged on the outer side; the inner bobbin is fixed The cone sleeve 2-13 is fixed on the yarn tube sleeve roller 2-2, and the outer yarn tube fixed cone sleeve 2-5 is empty on the yarn tube sleeve roll 2-2, and is provided with a locking nut 2-3 on the outside.

For the convenience of installation and replacement, the inner bobbin fixing cone sleeve 2-13 is connected to the inner end of the bobbin sleeve roller 2-2 through a key, and the inner end of the bobbin sleeve roller 2-2 is provided with an inner yarn bobbin fixing awl sleeve The spacing shoulder 2-17 of 2-13.

In order to facilitate dismounting, the cross-section of the outer surface of the inner end of the inner yarn bobbin fixing cone sleeve 2-13 is set to a hexagonal shape, so as to facilitate locking with tools, and prevent the inner yarn bobbin from being fixed when the locking nut 2-3 is tightened. Taper sleeve 2-13 and yarn bobbin cover roller 2-2 follow up together.

The inside yarn bobbin fixing cone sleeve 2-13 is provided with a belt groove, and the tension belt 2-14 is tensioned in the belt groove, and one end of the tension belt 2-14 is fixed on the creel frame body 2-4, and the other end is connected with the One end of the spring A2-12 is connected, the other end of the spring A2-12 is connected with the pin shaft 2-9 through the adjustment screw 2-11 and the lock nut 2-16, the adjustment screw 2-11 runs through the pin shaft 2-9, and the lock nut 2 -16 is connected on the adjusting screw rod 2-11, and is located on both sides of pin shaft 2-9 separately with spring A2-12. The initial length of the spring A2-12 is adjusted by adjusting the position of the lock nut 2-16 on the adjusting screw rod 2-11.

Tension swing arm 2-10 is V-shaped, is provided with front and back two branch arms, is provided with connecting hole on the front branch arm, pin shaft 2-9 is inserted in the connection hole of tension swing arm 2-10, rear branch arm The upper end is fixedly connected to the inner end of the detection roller support shaft 2-8, and the outer end of the detection roller support shaft 2-8 is provided with a bobbin radius detection roller 2-7 connected to it in rotation, and the tension swing arm 2-10 passes through Its V-shaped bottom is rotatably connected on the creel frame body 2-4.

Two bobbin sleeve rollers 2-2 are symmetrically installed on a spindle bar 2-1 by bearings 2-15 respectively, and the yarn on every bobbin 2-6 can be unwound independently. The inner yarn bobbin fixing cone sleeve 2-13 is connected with the yarn bobbin sleeve roller 2-2 through a key, and the limit shaft shoulder 2- 17. The outer yarn bobbin fixing cone sleeve 2-5 is empty on the yarn bobbin sleeve roller 2-2, and a locking nut 2-3 is arranged on the outer side. The fixed structure of the above-mentioned yarn bobbins 2-6 is stable and reliable, and easy to replace.

The number of yarn bobbins 2-6 installed on each working surface of the creel frame body is 5 layers up and down, 33 rows before and after, and the 33 rows before and after are divided into 3 units, and each unit is equipped with an equalizer in the middle of each layer of yarn bobbins 2-6. The two dividing reeds of the cloth, the reed teeth of the dividing reed are made of ceramic material to prevent yarn winding and wear, and the above-mentioned let-off device can complete the let-off of 330 bobbins.

The working principle of the above-mentioned let-off creel:

As the diameter of the yarn tube decreases, the torque of the yarn acting on the fixed cone sleeve of the inner bobbin becomes smaller and smaller; the bobbin radius detection roller moves continuously to the center of the spindle bar as the bobbin radius decreases, And drive the spring A to reduce the stretching amount, and the spring A drives the tension belt to reduce the pressure on the fixed tapered sleeve of the inner yarn tube, thereby reducing the friction force of the tension belt and the fixed cone sleeve of the inner yarn tube. The frictional moment keeps the frictional moment of the tension belt acting on the fixed tapered sleeve of the inner bobbin and the traction moment of the yarn acting on the fixed tapered sleeve of the inner bobbin always in balance.

The above-mentioned let-off creel has the following advantages: 1) A tension belt is set on the transmission part of the yarn bobbin-the inner yarn bobbin fixing cone sleeve, one end of the tension belt is fixed, one end is connected with one end of the spring A, and the other end of the spring A The structure connected with the tension swing arm of the bobbin radius detection roller makes the deformation of the spring A change with the change of the bobbin radius, and the tension of the tension belt changes with the change of the deformation of the spring A, and finally makes the tension belt act on The frictional moment of the inner bobbin fixing cone sleeve and the traction torque of the yarn acting on the inner bobbin fixing awl sleeve are kept in balance, and the tension of each yarn is automatically adjusted to keep it constant; 2) Since the tension belt is fixed to the inner bobbin The friction between the tapered sleeves makes the yarn have an initial tension; due to the friction between the tension belt and the fixed tapered sleeve of the inner bobbin, the yarn will not rush out due to the rotational inertia of the bobbin when stopping or decelerating; 3) Adopt the spring An adjusting screw structure is set between A and the pin shaft, so that the tension of the yarn can be adjusted; 4) The yarn bobbin is easy to replace; 5) The structure is compact, the volume is small and the space is saved.

In order to further keep the tension of the single yarn constant, please refer to Figures 16-18, the above-mentioned single yarn tensioning frame 4 includes a tensioning frame body 4-6, and the upper part of the tensioning frame body 4-6 is provided with a yarn guide frame 4-6. 7. There is a tensioning frame 4-8 under the yarn guiding frame 4-7, and the tensioning frame 4-8 is fixed on the tensioning frame body 4-6. The yarn guiding frame 4-7 is provided with a plurality of mutually parallel The single yarn guide roller 4-1, the single yarn guide roller 4-1 is supported on the tension frame body 4-6 through the bearing, and can rotate freely, and all the single yarn guide rollers 4-1 are in the same plane; The tension frame 4-8 is provided with a tension support fixed rod 4-2 corresponding to the single yarn guide roller 4-1, and the tension support fixed rod 4-2 is provided with a fixed block 4-2 corresponding to the number of single yarns. 3. Each fixed block 4-3 is set on the tension support fixed rod 4-2, and is locked with a jacking screw. All are fixed with a tension spring piece 4-4 on each fixed block 4-3, and porcelain ring 4-5 is installed on the tension spring piece 4-4. The thickness of the tension spring sheet 4-4 is usually 0.5-2 mm, preferably 0.8-1.2 mm. When it is necessary to adjust the position of the tensioning spring piece, loosen the jacking screw to adjust the position of the fixing block, thereby achieving the purpose of adjusting the position of the tensioning spring piece.

In order to reduce the wear and tear on the yarn, the single yarn guide roller 4-1 is made of SCP composite steel pipe.

In this embodiment, there are 10 single yarn guide rollers 4-1 on the yarn guide frame 4-7, and the 10 single yarn guide rollers 4-1 are evenly distributed and fixed on the yarn guide frame 4-7 parallel to each other. . The tension frame 4-8 is provided with 10 tension support fixed rods 4-2 corresponding to the single yarn guide roller 4-1, and 99 fixed blocks 4-3 are installed on each tension support fixed rod 4-2. A tension spring sheet 4-4 is installed on each fixed block 4-3, and a porcelain ring 4-5 is provided on the tension spring sheet 4-4. It can adjust the tension of 990 single yarns.

The working principle of the above single yarn tensioner:

The above-mentioned single yarn tensioning frame is installed between the let-off mechanism of the carbon fiber multi-layer corner loom and the weaving mouth of the loom. After the jacquard let-off mechanism sends out a single yarn, the single yarn is guided by the single yarn guide roller With the support, it passes through the ceramic ring on the tension spring at a certain angle and enters the weaving mouth of the loom. During the process of fabric opening and heald leveling, a single yarn can always be in a tensioned state under the action of the tension spring, so that the released single carbon fiber warp yarn always has a certain tension, which plays a role in micro-compensating the amount of opening warp yarn role.

The above-mentioned single yarn tensioning frame has the following advantages: by adopting the tension spring sheet structure corresponding to the number of single yarns installed on the tension support fixed rod, and adding ceramic rings, the single carbon fiber yarn passing through the ceramic rings can be Under the action of the tension spring, it is always in a tensioned state, thus realizing the automatic adjustment of the tension of a single carbon fiber yarn during the weaving process, which solves the problem of redundant yarns in the process of fabric opening and heddle leveling alternately The problem of thread tension; and it has a certain guiding and supporting effect on a single yarn for long-distance let-off, avoiding the problem of mutual interference of multiple yarns. Moreover, the utility model has a simple structure, takes up less space, can simultaneously adjust the tension of a large number of single yarns, and can control the number of tension springs through the length of the single yarn guide roller and the tension support fixing rod. To meet the needs of different numbers of warp yarns.

Although the preferred embodiment of the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific implementation, and the above-mentioned specific implementation is only illustrative and not restrictive. Under the enlightenment of the utility model, those skilled in the art can also make many forms without departing from the purpose of the utility model and the protection scope of the claims, and these all belong to the protection scope of the utility model.

Claims (8)

1. a carbon fiber multilayer angle joins loom let off motion; Comprise warp let-off creel, sheet yarn tension adjusting device and hold together yarn feeding device; Hold together the dead ahead that yarn feeding device is positioned at the loom fell; Sheet yarn tension adjusting device is positioned at the dead ahead of yarn feeding device, and warp let-off creel is positioned at the dead ahead of sheet yarn tension adjusting device; It is characterized in that said warp let-off creel comprises through the axle frame, the said many warps axle core that on the axle frame, are equipped with, every is fixed with a plurality of beamed yarn tubes on an axle core, be equipped with driving mechanism on the every warp axle axle core.

2. carbon fiber multilayer according to claim 1 angle joins loom let off motion, it is characterized in that, said yarn tension adjusting device comprises sheet yarn tension adjusting frame; Said yarn tension regulated on the frame top tension adjustment support and bottom tension adjustment support is installed; Said top tension adjustment support and said bottom tension adjustment support are symmetric arrangement up and down; And vertically section is V-shaped, and the V-arrangement opening is relative with the loom fell;

On the tension adjustment support of said top there be along top warp let-off roller and top swing idler roller that warp let-off direction sets gradually mounted in pairs; Said top warp let-off roller is rotatably connected in the swing arm rotating shaft of top, and the swing arm rotating shaft of said top is rotatably connected on the tension adjustment support of said top; Said top swing idler roller is rotatably connected on the pendulum roller bolster of top; Said top pendulum roller bolster is fixed in the swing arm rotating shaft of said top through the top swing arm that is fixed in its two ends; The lower end of said top swing arm is connected with said top pendulum roller bolster, and the upper end of said top swing arm is connected with the swing arm rotating shaft of said top; Regulate between the frame near a side lower part of loom fell and sheet yarn tension in the swing arm of said top and to be clamped with spring I;

On the tension adjustment support of said bottom there be along bottom warp let-off roller and bottom swing idler roller that warp let-off direction sets gradually mounted in pairs; Said bottom warp let-off roller is rotatably connected on bottom swing arm rotating shaft, and the swing arm rotating shaft of said bottom is rotatably connected on the tension adjustment support of said bottom; Said bottom swing idler roller is rotatably connected on the pendulum roller bolster of bottom; Said bottom pendulum roller bolster is fixed in the swing arm rotating shaft of said bottom through the bottom swing arm that is fixed in its two ends, and said bottom pendulum roller bolster is positioned at the top of said bottom swing arm rotating shaft; Regulate between the frame near a upper lateral part of loom fell and sheet yarn tension in the swing arm of said bottom and to be clamped with spring II.

3. carbon fiber multilayer according to claim 2 angle joins loom let off motion, it is characterized in that, is provided with counterweight support bar I in the upper end of said top swing arm, and said counterweight support bar I and said spring I divide the both sides that are located at the swing arm of said top; The upper end of said bottom swing arm and said bottom pendulum roller bolster are affixed; The middle part of said bottom swing arm and the swing arm rotating shaft of said bottom are affixed; Be provided with counterweight installing hole and counterweight support bar II in the lower end of said bottom swing arm, said counterweight support bar II and said spring II are arranged on the homonymy of said bottom swing arm.

4. carbon fiber multilayer according to claim 2 angle joins loom let off motion, it is characterized in that, in swing arm rotating shaft of said top and the swing arm rotating shaft of said bottom electromagnetic brake is installed all.

5. carbon fiber multilayer according to claim 1 angle joins loom let off motion, it is characterized in that, saidly holds together yarn feeding device and comprises holding together the yarn frame; Saidly hold together on the yarn frame to be connected with yarn roller support, the said vertical section that holds together yarn roller support is the opening V-arrangement relative with loom;

The many upper stratas that are parallel to each other are installed on said the first half of holding together yarn roller support advance yarn and hold together the yarn roller, all said upper stratas are advanced yarn and are held together the yarn roller and be positioned at same plane; Every said upper strata advance yarn hold together the yarn roller tiltedly below be provided with the upper strata yarn along warp let-off direction and hold together the yarn roller; All said upper strata yarns are held together the yarn roller and are positioned at same plane, and all upper strata yarns are held together plane and all said upper stratas at yarn roller place and advanced the plane parallel that yarn holds together yarn roller place;

The many lower floors that are parallel to each other are installed on said the latter half of holding together yarn roller support advance yarn and hold together the yarn roller, all said lower floors advance yarn and hold together the yarn roller and be positioned at same plane; Advancing oblique upper that yarn holds together the yarn roller every said lower floor is provided with lower floor's yarn along warp let-off direction and holds together the yarn roller; All said lower floor yarns are held together the yarn roller and are positioned at same plane, and the plane parallel that yarn holds together yarn roller place is advanced by plane and all said lower floors that yarn roller place is held together in all said lower floor yarns.

6. carbon fiber multilayer according to claim 1 angle joins loom let off motion; It is characterized in that; This let-off motion also comprises warp let-off bobbin cradle and single thread tensioning frame, and said single thread tensioning frame is positioned at the said dead ahead of holding together yarn feeding device, and said warp let-off bobbin cradle is positioned at the place ahead of said single thread tensioning frame.

7. carbon fiber multilayer according to claim 6 angle joins loom let off motion, it is characterized in that said warp let-off bobbin cradle comprises the bobbin cradle support body, is fixed with many spindle blades on the said bobbin cradle support body; Be equipped with symmetrical two yarn jacket casing rollers on the every spindle blade, said two yarn jacket casing roller branches are located at said bobbin cradle support body both sides, and are rotationally connected with said spindle blade; Each said yarn jacket casing roller is provided with fixedly tapered sleeve of inboard yarn tube in the inboard, be provided with fixedly tapered sleeve of outside yarn tube in the outside; Said inboard yarn tube fixedly tapered sleeve is fixed on the said yarn jacket casing roller; Said outside yarn tube fixedly tapered sleeve sky is enclosed within on the said yarn jacket casing roller, and is provided with locking nut in the outside;

Said inboard yarn tube fixed cone puts and is provided with belt grooves; Tension band is stretched in the said belt grooves; One end of said tension band is fixed on the said bobbin cradle support body, and the other end is connected with the end of said spring A, and the other end of said spring A is connected with the tension force swing arm through bearing pin; Said tension force swing arm is a V-arrangement; Be provided with former and later two minutes arm, the said preceding arm that divides is provided with connecting hole, and said bearing pin is inserted in the said connecting hole; Said back divides the upper end of arm affixed with the medial extremity of visiting the roller back shaft, is provided with the yarn tube radius that is rotationally connected with it in the outboard end of said spy roller back shaft and visits roller, and said tension force swing arm is rotatably connected on the said bobbin cradle support body through its V-arrangement bottom.

8. carbon fiber multilayer according to claim 6 angle joins loom let off motion, it is characterized in that said single thread tensioning frame comprises the tensioning frame support body; Said tensioning frame support body top is provided with yarn guide; Said yarn guide below is provided with tensioning frame, and said tensioning frame is fixed on the said tensioning frame support body, and said yarn guide is provided with the many single thread cord rollers that are parallel to each other; On said tensioning frame support body, all said single thread cord rollers are in together in the plane said single thread cord roller through bearings; Said tensioning frame is provided with the tensioning support fixation bar corresponding with said single thread cord roller; Said tensioning support fixation bar is provided with the fixed block suitable with single thread quantity; Each said fixed block all is sleeved on the said tensioning support fixation bar; And, all be fixed with a tensioning spring sheet on each said fixed block with holding out against screw locking, on the said tensioning spring sheet porcelain ring is installed.

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