CN209686027U - A kind of basalt grid weft yarn instant twister online - Google Patents

Abstract

The utility model is related to a kind of basalt grid weft yarn instant twister online, placement mechanism is rolled into a ball including yarn, fixed mechanism and transmission mechanism, it includes twisting rotation axis that yarn, which rolls into a ball placement mechanism, is twisting the outside of rotation axis and is being placed with six pieces of arc tension blocks around twisting rotation axis；There is rotation bolt on the spindle nose of twisting rotation axis, places yarn group in the outside of tension block；Fixed mechanism, which is included in below yarn group placement mechanism, is fixed with circular yarn group pallet, and yarn group's pallet and twisting rotation axis are integrated, yarn group pallet lower section dress there are two bearing block, twisting rotation axis is fixed on the rack by bearing block；Transmission mechanism includes being fixed the bottom of twisting rotation axis on the rack equipped with belt pulley, and belt pulley is connected to motor by V-belt, and motor speed is by Frequency Converter Control.The utility model all plays the role of conclusive the raising of the inherent quality of basalt fabric, the raising of production efficiency, the reduction of raw materials consumption, reduction of fabric difficulty of processing etc..

Description

An online real-time twisting device for basalt grid weft yarn

technical field

The utility model belongs to the technical field of twisting equipment, in particular to an on-line instant twisting device for basalt grid weft yarns.

Background technique

As a reinforced geotechnical material, fiberglass grid is widely used in road construction to improve the load bearing capacity of the road surface and prolong the service life of the road surface. However, under extreme conditions and demanding conditions, it is difficult for fiberglass grids to meet the requirements, such as high temperature, high cold, or large temperature differences between day and night, or runways used for airport landings, etc. Basalt fiber itself has the characteristics of higher strength, greater modulus and impact resistance, better wear resistance, better high temperature resistance and freeze-thaw resistance than glass fiber, so in some key and special cases , you have to use basalt grille. The basalt fiber roving used in the production of basalt grating is a bundle formed by combining multiple parallel strands without twisting. In the basalt roving bundle, the bundled fibers of the parallel strands are very poor, and the strands are in a dispersed state, and when multiple strands of strands are merged, due to the different tensions between the strands, the merged rovings are in a tensioned state. Sometimes it is loose and sometimes tight. At the same time, because the basalt fiber itself has a large modulus, strong rigidity, and is easy to be broken, it is easy to form "hairiness" when there is resistance. When basalt fiber is used as weft yarn and warp-knitting machine is used to weave geogrid, 12 weft yarns pass through 12 porcelain eyes on the weft-laying trolley, and the weft-laying trolley drives the reciprocating weft laying on the 6-meter-wide warp-knitting machine. The weft yarn grippers on both sides of the warp knitting machine hold the 12 weft yarns laid by the trolley and move forward with the laid weft yarns at the same time. When the weft yarn moves forward to the weaving area (binding area), the intersecting points formed by the weft yarns laid flat on the warp yarns are bound together by the weaving mechanism with very thin polyester filament threads to form a mesh-like sheet fabric— grille. The basalt rovings used as weft yarns are formed by combining multiple strands of raw silk in parallel without twisting, which results in inconsistent tension of the raw silks of the formed rovings. When the roving is under tension, some of the original filaments are still in a relaxed state. In this case, the roving (weft yarn) moving to the binding area cannot be bound by the binding needle and thread running at high speed, and may even damage the binding crochet hook, resulting in failure of normal production. When the 12 weft yarns are reciprocated by the weft laying trolley, the speed of the weft yarns will change for each weft laying reciprocation: static-acceleration-deceleration-static; and then return: from static-acceleration-deceleration-static. Therefore, the force of the weft yarn is also changing. When the weft yarn moves to both sides of the warp knitting machine and is held by the weft yarn gripper, the direction of movement of the weft yarn turns 180° instantly, and the force of the weft yarn is very large at this time. Because the basalt filaments have no twist when they are combined in parallel, and the basalt fibers have the characteristics of high rigidity, the basalt filaments are easily broken, forming "hairiness" to block the yarn guide hole and affecting production. Although basalt grating has many advantages, the structure of basalt roving is determined by the properties of basalt fiber itself and the method of roving combined processing. It cannot be produced.

Multiple strands of basalt raw silk are wound and combined in parallel through the stranding machine according to the required specifications to form yarn clusters with uniform diameters. The outer side of the yarn cluster used for weft yarn is fixed with a heat-sealing film, and the inner hole of the yarn cluster is lined with a paper tube. Under normal circumstances, there is no paper tube in the inner hole of the yarn cluster. When the yarn cluster is used, the yarn is drawn out from the inner hole of the yarn cluster, and the yarn cluster is in a static state. When the basalt rovings with multiple strands of raw filaments are combined in parallel are used to make grids and used as weft yarns, in order to solve the problem of inconsistent fiber tension when the rovings are combined, it is necessary to twist the rovings to make the yarn clusters rotate. Therefore, the roving should be unwound from the outside (when the basalt thick thread is used as a warp, the inner hole does not put a paper tube, the roving is unwound from the inside, and the yarn cluster is in a static state).

The principle of yarn twisting in the existing textile industry is: the twisted yarn ball is in a static state, the yarn is drawn from the yarn ball to the bobbin of the twisting spindle, the spindle drives the bobbin to rotate at a high speed, and the yarn is Twist is added and the twisted yarn is wound on the bobbin at the same time to complete the twisting of the yarn.

The "online instant twisting" of basalt roving in the utility model is just opposite to the yarn twisting in the textile industry. Take it out and use it immediately to complete the twisting of the roving.

Contents of the invention

In order to solve the above-mentioned technical problems raised in the background technology, the utility model proposes an on-line instant twisting device for basalt grid weft yarns. The yarn clusters are twisted together and completed simultaneously during the weft laying process: weft laying open (equipment start-up), twisting open, weft laying stop, twisting stop - "online instant twisting". By twisting the roving, the multi-strand raw yarns that were originally parallel combined are entwined together, which solves the problem of not being able to bind the intersection of warp and weft yarns caused by the inconsistent tension of the raw yarns, and also solves the problem of reducing the parallel combined roving The problem of broken hairiness and blocked yarn guide hole due to inconsistent tension solves the difficulty of basalt grid production.

The technical solution of the utility model is: the utility model provides a basalt grid weft yarn online instant twisting device, including a frame, and multiple groups of twisting mechanisms located above the frame, and the twisting mechanism includes a yarn ball placement mechanism , a fixing mechanism and a transmission mechanism, the yarn group placement mechanism includes a twisting rotating shaft, and six arc-shaped tension blocks are placed on the outside of the twisting rotating shaft and around the twisting rotating shaft; on the shaft head of the twisting rotating shaft There is a rotating bolt, and the yarn cluster is placed on the outside of the tension block; the fixing mechanism includes a circular yarn cluster tray fixed under the entire yarn cluster placement mechanism, and the yarn cluster tray is integrated with the rotating shaft. Two bearing seats, the twisting rotating shaft is fixed on the frame through the bearing seats; the transmission mechanism includes a pulley at the bottom end of the twisting rotating shaft fixed on the frame, the pulley is connected with the motor through a V-belt, and the motor speed Controlled by frequency converter, one motor drives one twisting rotating shaft to be controlled separately.

As a preference, 8 groups of twisting mechanisms are arranged above the frame, and the 8 groups of twisting mechanisms are divided into 2 parts and installed vertically on both sides of the frame, with 4 groups on each side, and the axial center distance between each group is 800mm.

As preferably, the motor is installed on the crossbeam at the bottom of the frame center, and the belt pulley is on the same horizontal plane as the belt pulley of the twisting rotating shaft downward.

As a preference, on both sides of the frame and on the frame next to each twisting rotating shaft, guard yarn covers and loop protectors are respectively installed to prevent looping caused by the centrifugal force of the roving when the yarn cluster rotates at a high speed. twist effect.

Preferably, the shroud is in the shape of a cone, and a porcelain eye is installed on the tip of the vertebra, and the basalt roving is twisted and led out through the porcelain eye.

As preferably, the yarn guard cover is made of stainless steel plate, the inner side will be smooth, and the seam can not hang the yarn.

As a preference, the gauze cover is connected with the rocker arm, and the rocker arm is fixed by the vertical rocker arm fixing rod. The rocker arm is in the shape of a right angle. The tapered tip of the yarn cover is connected; the horizontal lever of the rocker arm vertically hangs the yarn cover directly above the twisting rotating shaft, and covers the yarn cluster of one-third of the height; the vertical rod of the rocker arm inserted into the fixed rod of the rocker arm can be Extracted from the fixed rod tube and can be rotated.

As a preference, a loop protector is installed below the middle of the yarn cluster. The loop protector is a rectangular frame composed of two horizontal steel bars, a vertical sleeve and a stainless steel plate surface. The sleeve is installed on the rocker arm fixing rod. On the shaft frame outside the bottom, the torsion spring gives the loop protector a certain torque, so that the loop protector has a shaft frame fixed outside the bottom of the rocker arm fixed rod as a rotating frame, driving the vertical frame in the horizontal plane Twist, the stainless steel plate with a certain arc installed on the other end of the rectangular frame is tightly attached to the outside of the yarn ball.

The composition and principle of the basalt grid weft twisting mechanism:

①The twisting device consists of three parts: the yarn ball placing mechanism, the fixing mechanism and the transmission mechanism. First, the yarn cluster placement mechanism: on the outside of the twisting rotation axis, six arc-shaped tension blocks are placed around the twisting rotation axis. There is a rotating bolt on the shaft head of the twisting rotating shaft, and the size of the diameter of the circular shaft composed of six arc-shaped tension blocks pasted around the twisting rotating shaft can be adjusted by rotating the bolt. When the yarn cluster is put in, the six arc-shaped tension blocks are in a tight state, and their diameters are smaller than the inner diameter of the bobbins in the yarn cluster, so as to facilitate loading and unloading. After the yarn cluster is placed, turn the bolt, and the six arc-shaped tension blocks in the tightened state will expand outward, tensioning the loaded yarn cluster, so that the yarn cluster and the twisting rotating shaft are integrated, and the yarn cluster is together with the rotating shaft turn. A circular tray is fixed below the yarn ball placing mechanism, its diameter is 340mm (the maximum diameter of the yarn ball is not more than 300mm), and it is integrated with the rotating shaft. The yarn cluster is placed on the tray and rotates with the yarn disc. Second, two bearing seats are installed below the yarn ball tray, and the twisting rotating shaft is fixed on the frame through the bearing seats. All twisting rotating shafts must be vertical to the upper plane of the frame when they are fixed on the frame, so as to ensure the stability when the twisting rotating shafts drive the yarn clusters to run at high speed. Third, the lowermost end of the twisting rotating shaft fixed vertically on the frame is equipped with a pulley, which is connected with the motor through a V-belt, and the motor speed is controlled by a frequency converter, and one motor drives a twisting rotating shaft for independent control. Each frame is equipped with 8 rotating shafts, which can twist 8 yarn clusters at the same time. When there are more than 8, such as 12 yarn clusters to be twisted, 2 sets of twisting equipment can be selected (only 12 of the 16 twisting shafts are used, and the remaining 4 are used as spares. Each twisting machine can also be installed with more than 8 Twisting rotating shaft, but if there are too many installations, firstly, the equipment is bulky and difficult to place, and secondly, it is inconvenient to operate).

②Frame part: 8 groups of twisting and rotating shafts are divided into 2 parts and installed vertically on both sides of the frame, with 4 groups on each side, and the axis center distance between each group is 800mm (the specification of the general basalt yarn group is: height 260mm, diameter 250~300mm, inner hole diameter 75mm). The size of the frame is: length * width * height = 3200 * 1800 * 600, the motor is installed on the beam under the center of the frame, the belt pulley faces downward, and is on the same level as the belt pulley of the twisting rotating shaft. Each twisting shaft is driven by a motor. On both sides of the frame and next to each twisting shaft, guards and loop protectors are respectively installed to prevent twisting from being affected by loops formed by the roving due to centrifugal force when the yarn cluster rotates at high speed .

③ Protective gauze cover. A shroud is installed directly above the basalt yarn cluster of each twisting rotating shaft. The shroud is conical, and a porcelain eye is installed on the tip of the cone. The basalt roving is twisted and exported through the porcelain eye. The gauze cover is made of stainless steel plate, the inner side should be smooth, and the seam cannot hang the gauze. The shroud has a rocker arm which is fixed by a vertical rocker arm fixing rod. The rocker arm is in the shape of a right angle. One side is vertically inserted into the rocker fixing rod. The rocker arm horizontal bar vertically hangs the yarn cover directly above the twisting rotating shaft, and covers the yarn cluster of one-third of the height. The rocker vertical rod inserted into the rocker rod can be withdrawn from the rod tube and can be rotated. When the basalt yarn cluster needs to be replaced or the fault is dealt with, the vertical rod of the rocker arm can be pulled out and turned to one side to expose the basalt yarn cluster under the yarn guard for yarn replacement or troubleshooting. When the rocker arm is in the working state directly above the yarn cluster, there is a positioning pin between the rocker arm fixing bar and the rocker arm bar to fix the yarn cover to ensure that the high-speed twisted and unwound roving is covered in the yarn cover.

④Gauze ring protector: A yarn ring protector—a yarn ring protector is installed below the middle of the rotating basalt yarn group to prevent the formation of yarn rings when the yarn group rotates at high speed. The yarn ring protector is a rectangular frame composed of two horizontal steel bars, a vertical sleeve and stainless steel plate surface. The torsion force makes the loop protector have: take the shaft frame fixed on the bottom outside of the rocker arm fixed rod as the rotating frame, drive the frame in the vertical direction to twist in the horizontal plane, and install the frame at the other end of the rectangular frame with a certain arc The shaped stainless steel plate is tightly attached to the outside of the yarn cluster (it cannot be disengaged when the yarn cluster rotates at high speed), so that the high-speed rotating and unwound basalt roving will The coils formed by the rotating centrifugal force are destroyed, and the roving is tightly attached to the surface of the yarn cluster, and while being twisted, it is guided out of the porcelain eyelet at the top of the cone-shaped yarn guard.

Place the basalt fiber group with a woven tube in the inner hole used as weft yarn on the twisting rotating shaft, tighten the bolts above the twisting rotating shaft, and tighten the six tension blocks on the surface of the twisting rotating shaft Under the action of force, the basalt fiber cluster and the twisting rotating shaft are integrated. Feed the basalt yarn end through the porcelain hole at the top of the tapered sheath, then place the sheath over the bobbin. According to the different specification requirements of basalt grid production, the number of weft yarns used at the same time is 6, 8, 10, 12, etc., and the number of twisting rotating shafts can be determined according to the actual number of weft yarns required. Each twisting rotating shaft has a motor and frequency conversion control respectively, which group can be started when using which group of twisting rotating shafts, and which group is not turned on when not in use. At a height of 2 meters from the ground, there is a yarn-guiding porcelain eye directly above each twisting rotating shaft. The weft-laying trolley of the knitting machine, along with the horizontal reciprocating movement of the weft-laying trolley, completes the weft-laying work of the basalt grid. The amount of basalt twisting used as weft yarn is generally 5 twists/meter, that is to say, the twisting axis needs to rotate 5 times for every meter of weft yarn output. Because the twisting motor is controlled by a frequency converter, the speed of the motor can be adjusted according to the actual situation during production, that is, the number of twisting degrees. The number of twisting should not be too much under the premise of ensuring production, that is, adding The rotational speed of the twisting shaft should not be too high. According to the requirements of the number of weft yarns in the grid specification, place the used weft yarn clusters on the twister, and introduce the roving to the weft laying trolley of the warp knitting machine according to the export path, and start the "slow car" start button of the warp knitting machine , When there is no problem with the cooperation between the twisting machine and the warp knitting machine, start production normally. The start-up of the warp knitting machine and the twisting machine is synchronous. When the warp knitting machine is running "slow", the twisting machine is running at a low speed. The machine stops, and the twisting machine also stops rotating at the same time. The reciprocating motion of the weft laying trolley on the warp knitting machine pulls the basalt rovings to be continuously unwound from the yarn clusters and output outwards. During the unwinding output process, the rovings twist the unwound rovings by the high-speed rotation of the yarn clusters. The process of twisting, unwinding and weft laying of basalt roving is completed, thus realizing the production of basalt grid.

The production process of basalt precursor fiber and the merging process of precursor parallel rovings determine that the basalt roving yarn bundles are highly dispersed, there is no cohesion between the merged precursor fibers, and the tension of the precursors forming the roving is inconsistent. When it is tight, the original silk is still in a loose state, so that the warp knitting machine is in the binding area of warp and weft yarns, and the binding needles running at high speed cannot bind the whole weft yarn, resulting in failure to produce. At present, when basalt fiber rovings are used as weft yarns in weaving, they must be twisted in advance to improve the cohesion between the roving filaments, so as to meet the roving fluffing caused by inconsistent tension when the weft yarns run at high speed instantaneously; or to avoid warp knitting When the grid is produced by the machine, some of the raw silk in the roving is loose, and the binding crochet needles cannot fully bind the weft yarn. The intentional twisting of basalt rovings before use has many disadvantages: one is to invest in large-package twisting machine equipment, because the rovings used for basalt grids are generally around 2400tex (2.4 kg per kilometer), and only Large twisting machines and bobbins with large packages can accommodate more rovings. The purchase of twisting machines and production requires a lot of manpower and material resources. The weft yarn is used, but it must be wound into a yarn ball by the winder before being used as a weft yarn (the two ends of the yarn tube of the twisting machine have plugs, which cannot meet the instantaneous high-speed unwinding of the weft yarn). When the roving on the bobbin is turned into a yarn cluster, due to the high modulus of the basalt fiber, that is, the high rigidity, great accidental damage is caused to the fiber. The basalt roving is specially twisted before use. Although it solves the problem of the cohesion of the raw silk in the roving, it also brings unfavorable factors that affect the production efficiency and product quality. The third is that a bobbin with a large package capacity can only hold about 5 kg of roving, while a basalt bobbin weighs 20 kg. A large bobbin is unintentionally divided into 4 bobbins during the twisting process, resulting in four joints . There is no joint in the large yarn bobbin, but there are 4 knots in the bobbin, which artificially increases the number of joints and the number of shutdowns during use. Calculated on the basis of 12 weft-laid rovings, compared with the yarn clusters formed after twisting with large yarns on-line and twisting with rovings, assuming that the yarn clusters are all calculated at a weight of 20 kg, the online instant twisting uses up a yarn cluster and stops The number of times is nearly 50 times less, so the use of yarn clusters after twisting and winding seriously affects production efficiency.

Compared with glass fiber grid, basalt grid has greater advantages in performance, especially in extreme environments and special applications, it plays a more important role and cannot be replaced by glass fiber grid. Therefore, with the development of society, the application fields of basalt grating will become wider and wider, and the amount of use will also increase. To increase the amount of basalt grating, we must first solve the problem of difficult processing of basalt grating, that is, how to improve production efficiency under the premise of ensuring quality. The key to improving the production efficiency of basalt grids is to solve the problem of the cohesion of the original filaments in the rovings after the basalt rovings are merged. The cohesion force of the raw silk in the roving is good, and the tension of the raw silk of the roving is consistent, which is convenient for the high-speed production of the basalt grating, otherwise it will affect the production efficiency and product quality of the basalt grating. There are three ways to solve the cohesion force of basalt roving: one is to change the cohesion force of basalt fiber roving by changing the production process of basalt fiber roving, just like the production process of glass fiber direct yarn, and complete the roving required by the process at one time on the wire drawing machine The number (tex number) will no longer go through the joint process of combining the original silk, but the current production process of basalt fiber cannot meet this requirement. The second way is that when the basalt roving is used as weft yarn to weave grids, twisting treatment is carried out in the process of use to increase the cohesion between the original filaments in the ply roving, that is, the online instant twisting of the present invention method. The third is the currently used method of twisting the basalt roving after plying before use to improve the cohesion between the original silks. Among these three ways, only the second way is the most realistic, the most convenient to operate and the best effect. In the production process of basalt grid, the basalt roving used as weft yarn is twisted during weft laying, that is, weft laying while twisting has many advantages. First, it reduces a process of twisting in advance, thereby reducing the investment in equipment and manpower, and reducing the production cost; second, it avoids the damage to the basalt roving caused by twisting in advance and the problem of too many joints, so that The quality and production efficiency of the final grille are guaranteed; thirdly, the difficulty of operation is reduced, and the production rate of products is improved. The premise of the large-scale implementation of basalt grid is to solve the problem of cohesion of the original filaments in the basalt grid weft roving after merging, and the best way to solve the cohesion force is to twist the basalt roving, through the interaction between the original silk fibers The entanglement and mutual extrusion make all the parallel and merged raw filaments into one. Further, the most effective way to twist the basalt weft yarn is to twist in the process of grid production and weft laying, that is, instant twisting in online production ( Only twist the weft yarn, because the instantaneous speed of the weft yarn changes greatly during the reciprocating weft laying process: high speed-zero-high speed-zero speed change. The movement of the warp yarn is uniform, so no twisting is used), this is the basic The purpose and key of the utility model.

Twisting the yarn with a twisting machine is a very common process. Regardless of whether the twisted yarn is thick or thin, the principle is the same. The twisted yarn passes through the traction force of the roller at a certain speed. It is unwound from the yarn cluster and transported to the bobbin that rotates with the spindle at high speed. The bobbin twists at high speed while winding the twisted yarn on the bobbin. Its principle is that the rotation of the spindle drives the rotation of the twisted yarn, twists the yarn, and winds the twisted yarn on the bobbin. And the utility model is just opposite to the principle of twisting the basalt roving used as the grid weft yarn, and the twisting machine to the yarn. Through the pulling force of the warp knitting machine weft laying trolley, the basalt roving is pulled out from the yarn cluster at a certain speed (the speed at which one weft laying is completed). When the yarn cluster roving is pulled and unwound by the pulling force, the entire yarn Driven by the high-speed rotating and twisting rotating shaft, the ball is rotated and twisted at a high speed according to the set speed, that is, the basalt roving is twisted while being unwound from the yarn ball. The utility model completes the twisting of the roving through the high-speed rotation of the yarn cluster, thereby realizing the online instant twisting of the basalt grid weft yarn during use, which is the basic principle and idea of the twisting equipment of the utility model.

Twisting rotating shaft is the core component of basalt roving twisting, which is equivalent to the spindle of spinning machine. Since the weight of a basalt yarn cluster must be more than 20kg, and the yarn cluster must run together at high speed driven by the twisting shaft, the twisting shaft is required to have high strength and high-speed running stability. Guarantee on machining accuracy. There is a direction for the basalt yarn group to be put into the twisting rotating shaft, and the unwinding direction of the roving must be the same as the rotating direction of the twisting rotating shaft. Each twisting shaft is driven by a motor through a V-belt, and each motor is controlled by a frequency converter. The total power supply is connected with the "slow" and "fast" switch buttons of the main machine (warp knitting machine), and is controlled by the main machine together. The size of the twisting degree can be determined according to the actual production situation, to meet the standard of normal start-up production of the machine, and it can be realized by adjusting the frequency converter of the motor to adjust the speed of the yarn cluster. During the unwinding process of the roving at high speed, due to the centrifugal force of the circular motion and the heavy weight of the roving, a large yarn loop will be formed. The formation of the yarn loop will cause the rotation of the yarn cluster and the output of the roving after twisting can not be carried out normally, so below the middle of the height of the yarn cluster, a device to prevent the formation of the yarn loop when the yarn cluster rotates at a high speed - the loop protector is designed to prevent The yarn loops formed by the high-speed rotating centrifugal force of the yarn group ensure the normal progress of twisting and unwinding of the roving. When the roving is unwound from the top of the yarn roll, the yarn ring protector attached to the surface of the yarn roll will not work, so a conical yarn guard is designed directly above the center of the yarn roll (the center of the rotating shaft), which will add The twisted roving loops are gradually gathered up and output through the porcelain eyelets at the conical top of the sheath cover, completing the design task of twisting and unwinding the roving. Therefore, after twisting, the basalt rovings output through the porcelain eyes at the top of the sheath cover move vertically 1.5 meters upward along the direction of the porcelain eyes, and then pass through a porcelain eye to change the movement direction of the rovings, and the rovings enter the weft-laying trolley of the warp knitting machine. Through the function and mutual connection of various design agencies, the function of weft yarn twisting and weft laying on-line during the production process of the basalt grid is realized (1.5 meters vertically upward of the twisted roving is the twisting area of the roving, and the roving must be added along the The twisting shaft moves vertically upwards, which is beneficial to the twisting and output of the roving and reduces the damage to the roving).

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the front view of the overall structure of the utility model;

Fig. 2 is the detailed structure front view of a group of twisting mechanism of the present utility model;

Fig. 3 is the top view of the overall structure of the utility model;

Fig. 4 is the detailed structural top view of a group of twisting mechanism of the present utility model;

Fig. 5 is a top view of the detailed structure of the utility model loop protector;

Fig. 6 is a front view of the detailed structure of the utility model loop protector;

Fig. 7 is the top view of the structure of the twisting rotating shaft of the utility model;

Fig. 8 is the flow chart of the utility model twisting

Among the figure, 1, rocker arm fixing rod, 2, rocker arm rod, 3, yarn guard, 4, frame, 5, belt pulley, 6, torsion spring, 7, yarn ring protector, 8, twisting rotating shaft, 9 , bearing seat, 10, porcelain eye, 11, yarn ball, 12, yarn ball tray, 13, rotating bolt, 14, motor, 15, tension block, 16, rotating frame, 17, triangle belt, 18, protector fixing seat .

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The application principle of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1, as shown in Fig. 1-8 is the structural diagram of this patent, a basalt grid weft yarn online instant twisting device, including a frame 4, multiple sets of twisting mechanisms located above the frame 4, the twisting mechanism includes Yarn cluster placement mechanism, fixing mechanism and transmission mechanism, the yarn cluster placement mechanism includes a twisting rotating shaft 8, and six arc-shaped tension blocks 15 are placed on the outside of the twisting rotating shaft 8 and around the twisting rotating shaft 8; There is a rotating bolt 13 on the shaft head of the twisting rotating shaft 8, and the yarn cluster 11 is placed outside the tension block 15; It is integrated with the twisting rotating shaft 8, and two bearing blocks 9 are installed under the yarn ball tray 12, and the twisting rotating shaft 8 is fixed on the frame 4 through the bearing blocks 9; The lowermost end of the twisting rotating shaft 8 on the top is equipped with pulley 5, and belt pulley 5 is connected with motor 14 by V-belt 17, and motor 14 rotating speeds are controlled by frequency converter, and a motor 14 drives a twisting rotating shaft 8 independent control.

As a preference, 8 groups of twisting mechanisms are arranged above the frame 4, and the 8 groups of twisting mechanisms are divided into 2 parts and installed vertically on both sides of the frame 4, with 4 groups on each side, and the axial center distance between each two groups is 800mm .

As preferably, motor 14 is installed on the crossbeam of frame 4 center lower sides, and belt pulley is on the same horizontal plane with the belt pulley of twisting rotating shaft downward.

Preferably, on the frame 4 on both sides of the frame 4 and next to each twisting rotating shaft 8, a yarn cover 3 and a loop protector 7 are respectively installed to prevent the roving from forming due to centrifugal force when the yarn cluster rotates at a high speed. The effect of looping on twisting.

Preferably, the yarn guard 3 is conical, and a porcelain eye 10 is installed on the tip of the cone, and the basalt roving is twisted and led out through the porcelain eye.

As preferably, yarn guard cover 3 is made of stainless steel plate, and the inner side will be smooth, and seam can not hang yarn.

As preferably, the yarn guard 3 is connected with the rocker arm 2, and the rocker arm 2 is fixed by the vertical rocker arm fixed bar 1, and the rocker arm 2 is right-angled, and one side is vertically inserted into the rocker arm fixed bar 1, and the other side The horizontal bar is connected with the cone-shaped tip of the sheath cover 3 below the porcelain eye 10; the rocker arm horizontal bar hangs the sheath cover vertically directly above the twisting rotating shaft 8, and covers one-third of the yarn cluster; insert the rocker arm to fix it The rocker vertical rod in rod 1 can be extracted from the fixed rod tube and can rotate.

As preferably, a loop protector 7 is installed below the middle of the yarn cluster, and the loop protector 7 is a rectangular frame made up of two horizontal steel bars, a vertical sleeve and a stainless steel plate surface, and the sleeve is installed on the rocker arm. On the shaft frame outside the bottom of the fixed rod 1, a certain torsion force is given to the ring protector 7 by the torsion spring 6, so that the ring protector 7 has a shaft frame fixed on the bottom outside of the rocker arm fixed rod 1 as a rotating frame 16, driving The frame in the vertical direction is twisted in the horizontal plane, and the stainless steel plate with a certain arc shape installed at the other end of the rectangular frame is tightly attached to the outside of the yarn cluster 11 .

The composition and principle of the basalt grid weft twisting mechanism:

①The twisting device consists of three parts: the yarn ball placing mechanism, the fixing mechanism and the transmission mechanism. First, the yarn cluster placement mechanism: on the outside of the twisting rotation axis, six arc-shaped tension blocks are placed around the twisting rotation axis. There is a rotating bolt on the shaft head of the twisting rotating shaft, and the size of the diameter of the circular shaft composed of six arc-shaped tension blocks pasted around the twisting rotating shaft can be adjusted by rotating the bolt. When the yarn cluster is put in, the six arc-shaped tension blocks are in a tight state, and their diameters are smaller than the inner diameter of the bobbins in the yarn cluster, so as to facilitate loading and unloading. After the yarn cluster is placed, turn the bolt, and the six arc-shaped tension blocks in the tightened state will expand outward, tensioning the loaded yarn cluster, so that the yarn cluster and the twisting rotating shaft are integrated, and the yarn cluster is together with the rotating shaft turn. A circular tray is fixed below the yarn ball placing mechanism, its diameter is 340mm (the maximum diameter of the yarn ball is not more than 300mm), and it is integrated with the rotating shaft. The yarn cluster is placed on the tray and rotates with the yarn disc. Second, two bearing seats are installed below the yarn ball tray, and the twisting rotating shaft is fixed on the frame through the bearing seats. All twisting rotating shafts must be vertical to the upper plane of the frame when they are fixed on the frame, so as to ensure the stability when the twisting rotating shafts drive the yarn clusters to run at high speed. Third, the lowermost end of the twisting rotating shaft fixed vertically on the frame is equipped with a pulley, which is connected with the motor through a V-belt, and the motor speed is controlled by a frequency converter, and one motor drives a twisting rotating shaft for independent control. Each frame is equipped with 8 rotating shafts, which can twist 8 yarn clusters at the same time. When there are more than 8, such as 12 yarn clusters to be twisted, 2 sets of twisting equipment can be selected (only 12 of the 16 twisting shafts are used, and the remaining 4 are used as spares. Each twisting machine can also be installed with more than 8 Twisting rotating shaft, but if there are too many installations, firstly, the equipment is bulky and difficult to place, and secondly, it is inconvenient to operate).

②Frame part: 8 groups of twisting and rotating shafts are divided into 2 parts and installed vertically on both sides of the frame, with 4 groups on each side, and the axis center distance between each group is 800mm (the specification of the general basalt yarn group is: height 260mm, diameter 250~300mm, inner hole diameter 75mm). The size of the frame is: length * width * height = 3200 * 1800 * 600, the motor is installed on the beam under the center of the frame, the belt pulley faces downward, and is on the same level as the belt pulley of the twisting rotating shaft. Each twisting shaft is driven by a motor. On both sides of the frame and next to each twisting shaft, guards and loop protectors are respectively installed to prevent twisting from being affected by loops formed by the roving due to centrifugal force when the yarn cluster rotates at high speed .

③ Protective gauze cover. A shroud is installed directly above the basalt yarn cluster of each twisting rotating shaft. The shroud is conical, and a porcelain eye is installed on the tip of the cone. The basalt roving is twisted and exported through the porcelain eye. The gauze cover is made of stainless steel plate, the inner side should be smooth, and the seam cannot hang the gauze. The shroud has a rocker arm which is fixed by a vertical rocker arm fixing rod. The rocker arm is in the shape of a right angle. One side is vertically inserted into the rocker fixing rod. The rocker arm horizontal bar vertically hangs the yarn cover directly above the twisting rotating shaft, and covers the yarn cluster of one-third of the height. The rocker vertical rod inserted into the rocker rod can be withdrawn from the rod tube and can be rotated. When the basalt yarn cluster needs to be replaced or the fault is dealt with, the vertical rod of the rocker arm can be pulled out and turned to one side to expose the basalt yarn cluster under the yarn guard for yarn replacement or troubleshooting. When the rocker arm is in the working state directly above the yarn cluster, there is a positioning pin between the rocker arm fixing bar and the rocker arm bar to fix the yarn cover to ensure that the high-speed twisted and unwound roving is covered in the yarn cover.

④Gauze ring protector: A yarn ring protector—a yarn ring protector is installed below the middle of the rotating basalt yarn group to prevent the formation of yarn rings when the yarn group rotates at high speed. The yarn ring protector is a rectangular frame composed of two horizontal steel bars, a vertical sleeve and stainless steel plate surface. The torsion force makes the loop protector have: take the shaft frame fixed on the bottom outside of the rocker arm fixed rod as the rotating frame, drive the frame in the vertical direction to twist in the horizontal plane, and install the frame at the other end of the rectangular frame with a certain arc The shaped stainless steel plate is tightly attached to the outside of the yarn cluster (it cannot be disengaged when the yarn cluster rotates at high speed), so that the high-speed rotating and unwound basalt roving will The coils formed by the rotating centrifugal force are destroyed, and the roving is tightly attached to the surface of the yarn cluster, and while being twisted, it is guided out of the porcelain eyelet at the top of the cone-shaped yarn guard.

Of course, the above description is not limited to the above example, the undescribed technical features of the utility model can be realized through or adopt the existing technology, and will not be repeated here; the above embodiments and accompanying drawings are only used to illustrate the technology of the utility model The scheme is not a limitation of the utility model, and the utility model has been described in detail with reference to the preferred embodiment, and those of ordinary skill in the art should understand that those of ordinary skill in the art are within the essential scope of the utility model. Changes, modifications, additions or replacements do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims (8)

1. A basalt grid weft yarn online instant twisting device is characterized in that: it comprises a frame, a plurality of groups of twisting mechanisms positioned above the frame, and the twisting mechanism includes a yarn group placement mechanism, a fixing mechanism and a transmission mechanism, The yarn group placement mechanism includes a twisting rotating shaft, and six arc-shaped tension blocks are placed on the outside of the twisting rotating shaft and around the twisting rotating shaft; there are rotating bolts on the shaft head of the twisting rotating shaft, and The outer side of the yarn ball is placed; the fixing mechanism includes a circular yarn ball tray fixed under the entire yarn ball placing mechanism, and the yarn ball tray is integrated with the twisting rotating shaft, and two bearing seats are installed under the yarn ball tray. The twisting rotating shaft is fixed on the frame through the bearing seat; the transmission mechanism includes a belt pulley at the bottom end of the twisting rotating shaft fixed on the frame, and the pulley is connected with the motor through a V-belt, and the motor speed is controlled by a frequency converter. One motor drives one twisting rotating shaft to be controlled separately. 2. A basalt grid weft yarn online instant twisting device according to claim 1, characterized in that 8 groups of twisting mechanisms are arranged above the frame, and the 8 groups of twisting mechanisms are divided into 2 parts and installed vertically on the frame There are 4 groups on each side, and the axial center distance between each group is 800mm. 3. A basalt grid weft yarn online instant twisting device according to claim 1, characterized in that: the motor is installed on the beam under the center of the frame, the belt pulley is facing downwards and the belt pulley of the twisting rotating shaft is in the on the same level. 4. A basalt grid weft yarn online instant twisting device according to claim 1, characterized in that: on both sides of the frame, on the frame next to each twisting rotating shaft, guard yarn covers and Yarn loop protector prevents twisting from the looping formed by the roving due to the centrifugal force when the yarn cluster rotates at high speed. 5. A basalt grid weft yarn online instant twisting device according to claim 4, characterized in that: the sheath cover is in the shape of a cone, and a porcelain eye is installed on the tip of the cone, and the basalt roving is guided out through the porcelain eye after being twisted. 6. A basalt grid weft yarn online instant twisting device according to claim 4, characterized in that: the yarn guard is made of stainless steel plate, the inner side must be smooth, and the seam cannot hang yarn. 7. A basalt grid weft yarn online instant twisting device according to claim 4, characterized in that: the yarn guard is connected to the rocker lever, the rocker lever is fixed by the vertical rocker arm fixing rod, and the rocker lever is at a right angle One side is vertically inserted into the fixed rod of the rocker arm, and the horizontal rod of the rocker arm on the other side is connected with the tapered tip of the sheath cover under the porcelain eye; The yarn cluster of one height is covered; The rocker vertical rod inserted in the rocker arm fixed rod can be drawn out from the fixed rod tube and can rotate. 8. A basalt grid weft yarn online instant twisting device according to claim 4, characterized in that: a loop protector is installed below the middle of the yarn cluster, and the loop protector is composed of two horizontal steel bars and a A rectangular frame composed of a vertical sleeve and a stainless steel plate surface, the sleeve is installed on the shaft frame outside the bottom of the rocker arm fixing rod, and the yarn ring protector is given a certain torque by the torsion spring, so that the yarn ring protector has the ability to be fixed on the The shaft frame outside the bottom of the rocker arm fixed rod is a rotating frame, which drives the vertical frame to twist in the horizontal plane, and the stainless steel plate with a certain arc installed on the other end of the rectangular frame is tightly attached to the outside of the yarn ball .