CN111270382A

CN111270382A - Active control system for beaming tension of sectional warping machine

Info

Publication number: CN111270382A
Application number: CN202010094645.1A
Authority: CN
Inventors: 徐曙; 万鹤俊
Original assignee: Jiangyin No4 Textile Machinery New Tech Manufacturing Co ltd
Current assignee: Jiangyin No4 Textile Machinery New Tech Manufacturing Co ltd
Priority date: 2020-02-16
Filing date: 2020-02-16
Publication date: 2020-06-12
Anticipated expiration: 2040-02-16
Also published as: CN111270382B

Abstract

The invention belongs to the technical field of textile machinery, and discloses a rewinding tension active control system for a sectional warping machine.

Description

Active control system for beaming tension of sectional warping machine

Technical Field

The invention relates to the technical field of textile machinery, in particular to an active control system for beaming tension of a sectional warping machine.

Background

The warping is that the cheese is wound on a pan head in parallel, constant speed and tidiness under the same tension according to the number and length of yarns required by the process, is a vital preparation procedure in warp knitting, and needs a warping machine in the process.

Chinese patent No. CN202175773U discloses a beam warping machine, which comprises a main frame mechanism; a shaft releasing mechanism; a drying mechanism; a reed mechanism; a yarn-ejecting bar mechanism; a speed-measuring yarn-guiding roller mechanism; a winding mechanism; a lateral yarn pressing mechanism; an upper shaft dropping mechanism; the upper yarn of the shaft-releasing pan head is dried by a drying cylinder, then passes through a telescopic reed for width fixing, passes through a speed-measuring yarn guide roller, and is uniformly wound on the other pan head, so that the warp of the pan head is divided for sizing. The yarn releasing mechanism comprises a transmission shaft frame, a chuck, a damping cylinder, a damping belt component, a damping disc, a transmission shaft sleeve, a transmission shaft, a support shaft, a proximity switch induction disc, a clapping cylinder, a connecting shaft and a yarn releasing disc head.

When the beaming warping machine works, the piston rod of the damping air cylinder retracts to draw the damping belt component to stretch and cling to the transmission shaft, the rotating speed of the transmission shaft is reduced by utilizing friction force, and then the yarn releasing speed is reduced, so that yarns are tensioned. On the contrary, the piston rod of the damping cylinder extends out to release the damping band part, the friction force between the damping band part and the transmission shaft is reduced, the transmission shaft can smoothly rotate, the yarn releasing speed is accelerated, and the yarns are loosened. Finally, the tension of the yarn is adjusted.

Similar with above-mentioned beam warper, also often can set up damping structure in warp beam department on the current beam warper, and theory of operation is opposite: when the friction force borne by the warp beam is increased, the rotating speed is slowed down, and the tension on the yarn is reduced; when the friction force to which the warp beam is subjected decreases, its rotational speed increases and the tension on the yarn increases.

However, there are major drawbacks in adjusting the yarn tension in this manner. The friction between damping structure and the warp beam can be with mechanical energy conversion internal energy for the temperature of the two junctions rises rapidly, often needs extra cooperation water cooling system, cools down to this department. Furthermore, the conversion of mechanical energy into internal energy also means that the energy output by the motor is not completely converted into kinetic energy of the beam and the yarn, and the extra loss of energy is large.

Disclosure of Invention

The invention aims to provide an active control system for the rewinding tension of a sectional warping machine, which has the advantages that the rotating speed of a motor is adjusted according to the yarn tension, the energy output by the motor is fully utilized as much as possible in the process of controlling the yarn tension, and the extra loss is small.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a rewinding tension initiative control system for horizontal warper, includes the frame, the rotating bracket is equipped with the warp beam and leads the yarn roller in the frame, still erects in the frame to be used for the drive to lead the rotatory motor element of yarn roller, still including erectting the tension roll between warp beam and lead the yarn roller, the tension roll rotates with the frame to be connected, and the height of tension roll is greater than the warp beam and leads the yarn roller, and the tension roll is on a parallel with the warp beam setting, and the tension roll below is equipped with tension sensor and links to each other with the frame, tension sensor and motor element electric connection.

By adopting the technical scheme, the height of the tension roller is greater than that of the warp beam and the yarn guide roller, the yarn is obliquely conveyed upwards after being separated from the yarn guide roller, bypasses the tension roller and then obliquely descends, the included angle of the yarn between the tension roller and the yarn guide roller relative to the vertical direction is recorded as α, the included angle of the yarn between the tension roller and the warp beam relative to the vertical direction is recorded as β, the tensions at all positions on the yarn are equal, the tension is recorded as T, and the component force of the resultant force of the yarn applied to the tension roller in the vertical direction is F₁(cos α + cos β) and the weight of the structure such as tension roller is F₂The pressure sensed by the tension sensor is F₁+F₂Due to F₂The tension on the yarn can be reversely deduced through the pressure borne by the tension sensor; if the tension on the yarn is increased, the pressure borne by the tension sensor is increased, after an electric signal is output to the motor assembly, the rotating speed output by the motor is increased, the yarn conveying speed of the yarn guide roller is increased, and the yarn is properly loosened; if the tension on the yarn is reduced, the pressure borne by the tension sensor is reduced, after an electric signal is output to the motor assembly, the rotating speed output by the motor is reduced, the yarn conveying speed of the yarn guide roller is reduced, and the yarn is properly tensioned; the damping structure is cancelled, the rotating speed of the motor is adjusted according to the yarn tension, and in the process of controlling the yarn tension, the energy output by the motor can be fully utilized as far as possible, and the extra loss is small.

Further, the frame is gone up to slide and is equipped with the regulation seat, still is equipped with the drive assembly who is used for ordering about the regulation seat and slides in the frame, adjust the seat and be located the tension roller and lead between the yarn roller, highly being less than the tension roller of adjusting the seat, adjust the seat and set up in pairs, two length direction that adjust the seat and follow the tension roller are arranged, and the last rotating stand of two regulation seats is equipped with the yarn roller.

Through adopting above-mentioned technical scheme, along with the increase of yarn on the warp beam around rolling up thickness, the yarn between warp beam and the tension roller is raised gradually, β increases gradually, under the unchangeable condition of tension T, F₁Gradually reducing, namely deviation occurs between the tension measured by the tension sensor and an actual value, which is not beneficial to the stability of yarn tension, so that an adjusting seat and a yarn guide roller are arranged, at the moment, α is an included angle of the yarn between the tension roller and the yarn guide roller relative to the vertical direction, the adjusting seat slides on a frame to drive the yarn guide roller to move, namely, the size of α can be adjusted, and when the yarn just starts to be wound on a warp beam, the size of α is α₀β size β₀α size is α during yarn winding_xβ size β_xThen only cos α needs to be guaranteed₀+cosβ₀=cosα_x+cosβ_xI.e., according to β_xCan be calculated to obtain α_xAnd thus the position of the thread-guiding roller is adjusted, so that T and F are₁The conversion relation between the two is kept unchanged, and the tension on the yarn can be controlled more stably.

Further, be equipped with the slide rail in the frame, the slide rail is the arc setting, and the centre of a circle and the coincidence of tension roll top of slide rail are equipped with the slider in the slide rail, adjust seat and slider rigid coupling, adjust the seat and pass through the slider slip setting in the frame.

Through adopting above-mentioned technical scheme, slide rail cooperation slider is injectd the slip orbit of adjusting the seat, and the centre of a circle and the coincidence of tension roller top of arc slide rail, in the error band that allows, can think the centre of a circle of slide rail and the terminal coincidence of yarn that is located between tension roller and the yarn guide roll, α's the variation and the distance that the seat removed of adjusting are the linear relation this moment, are convenient for adjust α.

Further, drive assembly is including erectting cylinder in the frame, the driven rack that links to each other with the piston rod of cylinder, setting on adjusting the seat, driven rack is the arc setting, and the centre of a circle of driven rack coincides with the centre of a circle of slide rail, the tangent direction setting of driven rack is followed to the driven rack, and the driving rack meshes with the driven rack, the length direction setting of driving rack is followed to the cylinder.

Through adopting above-mentioned technical scheme, the piston rod of cylinder is flexible, orders about the initiative rack and removes, and then drives the driven rack with initiative rack meshing, makes the regulation seat slide along the slide rail.

Further, two of the cylinders are connected in series.

Through adopting above-mentioned technical scheme, the cylinder series connection has better synchronism, makes the seat of adjusting difficult card dead at the removal in-process.

Furthermore, a limiting plate is erected on the rack, and the limiting plate is abutted against one side, back to the driven rack, of the driving rack.

Through adopting above-mentioned technical scheme, limiting plate offsets with the one side that the initiative rack dorsad driven rack, makes initiative rack and driven rack stable meshing, is difficult for appearing jumping the condition of tooth.

Furthermore, the limiting plate is provided with a roller towards the rotating frame on one side of the driving rack, and the limiting plate is abutted against the driving rack through the roller.

Through adopting above-mentioned technical scheme, set up the gyro wheel, can reduce the frictional force that the initiative rack received when removing greatly.

Furthermore, the driving assembly comprises a driving lever arranged on the adjusting seat, a shifting block arranged on the rack in a sliding mode, and a screw rod arranged on the shifting block in a penetrating mode, the screw rod is arranged along the tangential direction of the sliding rail and is connected with the rack in a rotating mode, the screw rod is in threaded fit with the shifting block, the sliding direction of the shifting block is parallel to the screw rod, a clamping groove is formed in the shifting block, the clamping groove is arranged along the normal direction of the sliding rail, the driving lever is arranged in the clamping groove in a penetrating mode, and the driving lever is parallel to the yarn guide roller.

Through adopting above-mentioned technical scheme, the screw rod sets up along the tangential direction of slide rail, rotates the screw rod, can make the shifting block remove to the other end from the one end of slide rail, and its and the constant change of distance between the slide rail, and the draw-in groove sets up along the normal direction of slide rail, so the driving lever slides along the draw-in groove at the in-process that the shifting block removed, nevertheless keeps in contact with the shifting block all the time, pulls the regulation seat and slides under the drive of shifting block.

In conclusion, the invention has the following beneficial effects:

1. the rotating speed of the motor is adjusted according to the yarn tension, so that the energy output by the motor can be fully utilized as much as possible in the process of controlling the yarn tension, and the extra loss is small;

2. t and F are adjusted by arranging an adjusting seat and a yarn guide roller₁The conversion relation between the two is kept unchanged, and the tension on the yarn can be controlled more stably.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1;

FIG. 2 is a schematic view showing the connection between the guide roller and the frame in example 1;

FIG. 3 is a schematic view of the structure of a drive unit in embodiment 1;

fig. 4 is a schematic structural view of a drive unit in embodiment 2.

In the figure, 1, a frame; 2. a warp beam; 3. a yarn guide roller; 4. a tension roller; 5. a tension sensor; 6. an adjusting seat; 7. a yarn guide roller; 8. a yarn; 11. a slide rail; 12. a slider; 13. a cylinder; 14. a driving rack; 15. a driven rack; 16. a limiting plate; 17. a roller; 18. shifting blocks; 19. a screw; 110. a card slot; 111. a second motor; 112. a guide bar; 31. a first motor; 32. a speed reducer; 33. a driving pulley; 34. a driven pulley; 35. a drive belt; 61. a deflector rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

an active control system for the rewinding tension of a sectional warping machine comprises a frame 1, wherein a yarn guide roller 3, a yarn guide roller 7, a tension roller 4 and a warp beam 2 are sequentially erected on the frame 1, and the structures are rotatably connected with the frame 1, arranged along the advancing direction of yarns 8 and parallel to each other.

As shown in fig. 1, a motor assembly including a first motor 31 and a speed reducer 32 is mounted on the frame 1. Wherein, the output shaft of the first motor 31 is sleeved with a driving belt wheel 33, the input shaft of the speed reducer 32 is sleeved with a driven belt wheel 34, the driving belt wheel 33 and the driven belt wheel 34 are wound with a transmission belt 35, and the output shaft of the speed reducer 32 is connected with the yarn guide roller 3. The motor component drives the yarn guide roller 3 to rotate, and controls the speed of the yarn 8 conveyed by the yarn guide roller 3.

As shown in fig. 1, a tension sensor 5 is arranged below the tension roller 4, and the tension roller 4 is rotatably erected on the tension sensor 5 and is connected with the frame 1 through the tension sensor 5. The tension sensor 5 is bolted to the frame 1 and is electrically connected to the controller of the first motor 31.

As shown in figure 1, the height of the tension roller 4 is larger than that of the warp beam 2, the yarn guide roller 7 and the yarn guide roller 3, and the top end of the yarn guide roller 7 is positioned above the connecting line between the top end of the tension roller 4 and the bottom end of the yarn guide roller 3. The yarn 8 sequentially bypasses the bottom end of the yarn guide roller 3, the top end of the yarn guide roller 7, the top end of the tension roller 4 and the top end of the warp beam 2 and then is wound on the warp beam 2.

For the two strands of yarn 8 on both sides of the tension roller 4, the ends thereof facing away from the tension roller 4 are inclined downwards. The angle of the yarn 8 between the tension roller 4 and the warp beam 2 with respect to the vertical direction gradually increases as the winding thickness of the yarn 8 on the warp beam 2 increases. The angle of the yarn 8 between the tension roller 4 and the guide roller 7 with respect to the vertical direction is determined by the position of the guide roller 7.

As shown in fig. 2, an arc-shaped slide rail 11 is erected on the frame 1, the slide rail 11 is a groove rail, an arc-shaped slide block 12 is slidably disposed in the groove rail, and a center of the slide rail 11 coincides with a top end of the tension roller 4 (see fig. 1).

As shown in fig. 2, the sliding rails 11 are arranged in pairs at both ends of the thread guiding roller 7 with their notches facing each other. The two sliding blocks 12 are respectively welded with an adjusting seat 6, and the adjusting seats 6 are arranged on the rack 1 in a sliding mode through the sliding blocks 12 and the sliding rails 11. The yarn guide roller 7 is erected on the two adjusting seats 6, and two ends of the yarn guide roller are respectively connected with the two adjusting seats 6 in a rotating mode.

As shown in fig. 2 and 3, the bottom end of the adjusting seat 6 is welded with an arc-shaped driven rack 15, the center of the driven rack 15 coincides with the center of the slide rail 11, and the sawtooth surface of the driven rack is arranged opposite to the adjusting seat 6. Correspondingly, a cylinder 13 is erected on the frame 1, the cylinder 13 is arranged along the tangential direction of a driven rack 15, and a piston rod of the cylinder is connected with a driving rack 14. The driving rack 14 is coaxial with the cylinder 13 and meshes with the driven rack 15.

As shown in fig. 2 and 3, the driven rack 15, the air cylinder 13 and the driving rack 14 form a driving assembly, and the air cylinders 13 in the two driving assemblies are connected in series, so that high synchronism is achieved. The piston rod of the cylinder 13 stretches out and draws back, and pushes the driving rack 14 to slide, thereby driving the adjusting seat 6 to slide along the slide rail 11.

As shown in fig. 2 and fig. 3, a limiting plate 16 is erected on the rack 1, the limiting plate 16 is located on a side of the driving rack 14 facing away from the driven rack 15, and a roller 17 is rotatably erected on a side of the limiting plate 16 facing the driving rack 14 and abuts against the driving rack 14 through the roller 17. The driving rack 14 is limited by the limiting plate 16 during the moving process and is stably meshed with the driven rack 15.

The specific implementation process comprises the following steps:

when the yarn 8 is too loose, the tension sensor 5 senses that the tension on the yarn 8 is reduced, outputs an electric signal to the first motor 31, reduces the rotating speed of the output shaft of the first motor 31, and further slows down the speed of the yarn 8 conveyed by the yarn guide roller 3, so that the yarn 8 is tensioned.

When the yarn 8 is too tensioned, the tension sensor 5 senses that the tension on the yarn 8 is increased, an electric signal is output to the first motor 31, the rotating speed of an output shaft of the first motor 31 is increased, the speed of conveying the yarn 8 by the yarn guide roller 3 is increased, and the yarn 8 is loosened.

Example 2:

the difference from the embodiment 1 is that, unlike the driving component driving the adjusting seat 6 to slide, as shown in fig. 4, the frame 1 is provided with a screw 19 and a second motor 111. The screw rod 19 is arranged along the tangential direction of the slide rail 11, is rotatably connected with the frame 1, is connected with an output shaft of the second motor 111, and rotates under the driving of the second motor 111. In addition, the screw rod 19 is sleeved with a shifting block 18, and the shifting block are in threaded fit. One end of the shifting block 18 facing the center of the slide rail 11 is provided with a clamping groove 110, and the clamping groove 110 is arranged along the normal direction of the slide rail 11. Correspondingly, a shift lever 61 is welded on the adjusting seat 6. The deflector rod 61 is parallel to the yarn guide roller 7, penetrates through the clamping groove 110, and has a diameter equal to the width of the clamping groove 110.

As shown in fig. 4, a guide rod 112 is erected on the frame 1, and the guide rod 112 is parallel to the screw rod 19 and has a square cross section. In addition, the guide rod 112 is inserted into the shifting block 18 and is in sliding fit with the shifting block 18.

The specific implementation process comprises the following steps:

the second motor 111 drives the screw rod 19 to rotate, which drives the shifting block 18 to move, and the shifting block 18 drives the adjusting seat 6 to slide through the shifting rod 61. In the sliding process, the shifting block 18 and the adjusting seat 6 keep synchronous along the length direction of the slide rail 11, the distance along the normal direction of the slide rail 11 is constantly changed, and the shifting rod 61 slides in the clamping groove 110.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a rewind tension active control system for horizontal warper, includes frame (1), rotating rack is equipped with warp beam (2) and leads yarn roller (3) on frame (1), still erects in frame (1) to be used for the drive to lead the rotatory motor element of yarn roller (3), its characterized in that: still including setting up tension roller (4) between warp beam (2) and leading yarn roller (3), tension roller (4) rotate with frame (1) and are connected, and the height of tension roller (4) is greater than warp beam (2) and leads yarn roller (3), and tension roller (4) are on a parallel with warp beam (2) and set up, and tension roller (4) below is equipped with tension sensor (5) and links to each other with frame (1), tension sensor (5) and motor element electric connection.

2. The active control system of beaming tension for a sectional warper of claim 1, wherein: the yarn guide roller is characterized in that adjusting seats (6) are arranged on the rack (1) in a sliding mode, driving assemblies used for driving the adjusting seats (6) to slide are further arranged on the rack (1), the adjusting seats (6) are located between the tension rollers (4) and the yarn guide rollers (3), the height of the adjusting seats (6) is lower than that of the tension rollers (4), the adjusting seats (6) are arranged in pairs, the adjusting seats (6) are arranged along the length direction of the tension rollers (4), and the yarn guide rollers (7) are arranged on the rotating frames on the adjusting seats (6).

3. The active control system of beaming tension for a sectional warper of claim 2, wherein: be equipped with slide rail (11) on frame (1), slide rail (11) are the arc setting, and the centre of a circle and tension roller (4) top coincidence of slide rail (11), slide in slide rail (11) and be equipped with slider (12), adjust seat (6) and slider (12) rigid coupling, adjust seat (6) and slide through slider (12) and set up in frame (1).

4. The active control system of beaming tension for a sectional warper of claim 3, wherein: the driving assembly comprises a cylinder (13) erected on the rack (1), a driving rack (14) connected with a piston rod of the cylinder (13), and a driven rack (15) arranged on the adjusting seat (6), wherein the driven rack (15) is arc-shaped, the circle center of the driven rack (15) coincides with the circle center of the sliding rail (11), the driving rack (14) is arranged along the tangential direction of the driven rack (15), the driving rack (14) is meshed with the driven rack (15), and the cylinder (13) is arranged along the length direction of the driving rack (14).

5. The active control system of beaming tension for a sectional warper of claim 4, wherein: the two cylinders (13) are connected in series.

6. The active control system of beaming tension for a sectional warper of claim 4, wherein: a limiting plate (16) is erected on the rack (1), and the limiting plate (16) is abutted against one side, back to the driven rack (15), of the driving rack (14).

7. The active control system of beaming tension for a sectional warper of claim 6, wherein: the limiting plate (16) is provided with a roller (17) towards the rotating frame on one side of the driving rack (14), and the limiting plate (16) is abutted against the driving rack (14) through the roller (17).

8. The active control system of beaming tension for a sectional warper of claim 3, wherein: the driving assembly comprises a shifting rod (61) arranged on the adjusting seat (6), a shifting block (18) arranged on the rack (1) in a sliding mode, and a screw rod (19) arranged on the shifting block (18) in a penetrating mode, wherein the screw rod (19) is arranged along the tangential direction of the sliding rail (11), the screw rod (19) is rotatably connected with the rack (1), the screw rod (19) is in threaded fit with the shifting block (18), the sliding direction of the shifting block (18) is parallel to the screw rod (19), a clamping groove (110) is formed in the shifting block (18), the clamping groove (110) is arranged along the normal direction of the sliding rail (11), the shifting rod (61) is arranged in the clamping groove (110) in a penetrating mode, and the shifting rod (61) is parallel to the yarn guide roller (7).