A thread pulling and stretching mechanism for a spinning machine

Abstract

The present invention belongs to the technical field of spinning machines, and in particular to a silk thread traction and stretching mechanism for a spinning machine; the present invention comprises: a frame; and a reel-and-reel mechanism installed on the frame, the reel-and-reel mechanism automatically reels and releases the silk thread according to the tightness of the silk thread; when the silk thread becomes loose, the length of the silk thread wound on the reel-and-reel mechanism becomes longer, increasing the tension of the silk thread, so that the silk thread is converted from a relaxed state to a tightened state; when the silk thread becomes tight, the length of the silk thread wound on the reel-and-reel mechanism becomes shorter, reducing the tension of the silk thread, so that the silk thread is converted from an overtight state to a tightened state; the present invention is provided with a reel-and-reel mechanism, when the silk thread becomes loose, the length of the silk thread wound on the reel-and-reel mechanism becomes longer, so that the silk thread is converted from a relaxed state to a tightened state; when the silk thread becomes tight, the length of the silk thread wound on the reel-and-reel mechanism becomes shorter, reducing the tension of the silk thread, so that the silk thread is converted from an overtight state to a tightened state.

Description

Technical Field

[0001] The invention relates to the technical field of spinning machines, and in particular to a silk thread pulling and stretching mechanism for a spinning machine. Background Art

[0002] Textile fabrics, also known as non-woven fabrics, are fabrics that do not require spinning and weaving. They are made by directional or random arrangement of textile staple fibers or filaments to form a fiber mesh structure, and then reinforced by mechanical, thermal bonding or chemical methods. The textile part is processed by spinning lines. The melt spinning process mainly includes: extruding the melt through the spinneret eye - the formation of melt streams; the melt streams are elongated and thinned and cooled and solidified. The oiling and winding of solid filaments have the characteristics of high winding speed, no need for solvents and precipitants, simple equipment, and short process flow.

[0003] However, the spinning line is usually in a suspended state during the conveying process. If the distance between the conveying rollers is too long, the conveying rollers may not be lubricated in time and the rotation speed may be different after long-term use of the equipment, resulting in the spinning line becoming loose or tight during the conveying process. The traction equipment cannot adjust the tightness of the spinning during the traction process, and the spinning line may easily break or the line roll may become loose during the winding process. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a silk thread traction and stretching mechanism for a spinning machine. By providing a take-up and pay-out mechanism, the spinning thread can be automatically taken up and paid out, thereby overcoming the shortcomings of the prior art that the silk thread is too loose or too tight during transportation, and aims to solve the problems in the background technology.

[0005] In order to achieve the above-mentioned technical objectives, the specific technical scheme of the present invention is as follows: a silk thread traction and stretching mechanism for a spinning machine proposed by the present invention comprises: a frame; and a wire-reeling and wire-winding mechanism installed on the frame, the silk thread is wound around the wire-reeling and wire-winding mechanism for at least one circle, and the wire-reeling and wire-winding mechanism automatically reels in and releases the silk thread according to the tightness of the silk thread; when the silk thread becomes loose, the length of the silk thread wound around the wire-reeling and wire-winding mechanism becomes longer, increasing the tension of the silk thread, so that the silk thread is converted from a relaxed state to a stretched state; when the silk thread becomes tight, the length of the silk thread wound around the wire-reeling and wire-winding mechanism becomes shorter, reducing the tension of the silk thread, so that the silk thread is converted from an overly tight state to a stretched state.

[0006] As a preferred technical solution of the present invention, the wire retracting and releasing mechanism includes: a hydraulic cylinder filled with hydraulic oil; a plurality of pairs of winding assemblies are symmetrically connected on both sides of the hydraulic cylinder, corresponding one to one to the number of wires, and are evenly arranged along the length direction of the hydraulic cylinder, and the wires are wound one by one on the corresponding winding assemblies.

[0007] As a preferred technical solution of the present invention, the winding assembly includes: a pressure rod, one end of which is rotatably connected to the first winding wheel, and the other end is rotatably connected to the hydraulic cylinder through a connecting rod; a plurality of piston cylinders are provided on the surface of the hydraulic cylinder, and a piston rod is rotatably connected to the interior of the piston rod, and one end of the piston rod is rotatably connected to the pressure rod.

[0008] As a preferred technical solution of the present invention, a pair of wire pressing rollers are symmetrically connected on both sides of the wire taking-up and paying-out mechanism, and the wires are passed under the two wire pressing rollers. The wire pressing rollers are connected to the frame and can move up and down. The two wire pressing rollers are flush in height and are both lower than the height of the wire taking-up and paying-out mechanism.

[0009] As an optimal technical solution of the present invention, an oil cylinder is installed on the frame, and the oil cylinder is connected to the hydraulic cylinder through an oil pipe, and a movable cylinder column is sealed in the oil cylinder, and a connecting frame is connected to the two wire pressing rollers, and the cylinder column is fixedly connected to the connecting frame; when the wire is too tight, the pressure of the wire on the piston rod increases, driving the two pressure rods on the same pair of winding assemblies to rotate closer to each other, so that the length of the wire wrapped on the winding assembly is reduced, and the wire is loosened, and when the pressure rod rotates, it drives the piston rod to shrink into the piston cylinder, drives the hydraulic oil to flow, and the hydraulic oil lifts the cylinder column to rise, drives the two wire pressing rollers to rise, and reduces the degree of compression of the wire; when the wire is too loose, the pressure of the wire on the piston rod is reduced, and the cylinder column descends due to the gravity of the two wire pressing rollers, compresses the wire, and the descending of the cylinder column drives the hydraulic oil to flow, and the hydraulic oil drives the piston rod to extend outward, so that the two pressure rods on the same pair of winding assemblies rotate away from each other, so that the length of the wire wrapped on the winding assembly is increased, and the wire is tightened.

[0010] As a preferred technical solution of the present invention, the frame is provided with sliding holes corresponding to the wire-pressing rollers one by one, a slider is slidably connected in the sliding holes, the wire-pressing roller is rotatably connected to the slider, and the slider is fixedly connected to the connecting frame, and a guide column is connected in the sliding hole and slidably connected to the slider, and a spring is connected to the guide column.

[0011] As a preferred technical solution of the present invention, a bracket is fixedly connected to the bottom of the hydraulic cylinder, corresponding one to one with the winding assembly; a pair of second winding wheels are symmetrically connected to the bracket.

[0012] As a preferred technical solution of the present invention, an adjusting cylinder is provided on the hydraulic cylinder, a movable adjusting column is sealed in the adjusting cylinder, a rod body is connected to the adjusting column, a worm is fixedly connected to the surface of the rod body; a bracket is fixedly connected to the frame, a worm wheel meshing with the worm is rotatably connected to the bracket, and a coaxially rotating turntable is connected to the worm wheel.

[0013] As a preferred technical solution of the present invention, a threaded rod is fixedly connected to the cylinder column, and a threaded sleeve threadedly connected to the threaded rod is rotatably connected to the connecting frame.

[0014] As a preferred technical solution of the present invention, at least two winding grooves are provided on the surface of the first winding wheel.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention is provided with a wire-retracting and -releasing mechanism. When the wire becomes loose, the length of the wire wound on the wire-retracting and -releasing mechanism becomes longer, thereby increasing the tension of the wire and converting the wire from a relaxed state to a tightened state. When the wire becomes tight, the length of the wire wound on the wire-retracting and -releasing mechanism becomes shorter, thereby reducing the tension of the wire and converting the wire from an overtight state to a tightened state, thereby avoiding the problem of the wire being too tight or loose.

[0017] 2. The present invention provides wire pressing rollers on both sides of the hydraulic cylinder. When the wire becomes loose, the length of the wire wound on the wire taking-up and unwinding mechanism becomes longer, increasing the tension of the wire, and the wire pressing roller is driven down by hydraulic oil to increase the degree of compression of the wire; when the wire becomes tight, the length of the wire wound on the wire taking-up and unwinding mechanism becomes shorter, reducing the tension of the wire, and the wire pressing roller is driven up by hydraulic oil to reduce the degree of compression of the wire, and the tightness of the wire is further adjusted by the lifting and lowering of the wire pressing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a silk thread pulling and stretching mechanism for a spinning machine proposed by the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of a silk thread pulling and stretching mechanism for a spinning machine proposed by the present invention from another angle.

[0020] Figure 3 It is a structural schematic diagram of the wire-retracting and -releasing mechanism of the present invention.

[0021] Figure 4 It is a schematic diagram from another angle of the wire retracting and releasing mechanism of the present invention.

[0022] Figure 5 for Figure 3 Schematic diagram of the front view.

[0023] Figure 6 for Figure 1 A partial enlarged view of point A in the middle.

[0024] Figure 7 for Figure 2 A partial enlarged view of point B in the middle.

[0025] Figure 8 for Figure 2A partial enlarged view of point C in the middle.

[0026] In the figure: 1. frame; 101. slide hole; 2. wire-retracting and -releasing mechanism; 21. hydraulic cylinder; 22. pressure rod; 23. first winding wheel; 231. winding groove; 24. piston cylinder; 25. piston rod; 26. connecting rod; 27. bracket; 28. second winding wheel; 29. ​​adjusting cylinder; 210. adjusting column; 211. rod body; 212. worm; 3. wire-pressing roller; 4. sliding block; 5. connecting frame; 6. guide column; 7. spring; 8. oil pipe; 9. oil cylinder; 10. cylinder column; 11. threaded rod; 12. threaded sleeve; 13. bracket; 14. worm gear; 15. turntable. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] One implementation method:

[0029] The present invention is a silk thread traction and stretching mechanism for a spinning machine, comprising: a frame 1; and a reeling and winding mechanism 2 installed on the frame 1, the silk thread is wound around the reeling and winding mechanism 2 for at least one circle, and the reeling and winding mechanism 2 automatically reels and unwinds the silk thread according to the tightness of the silk thread; in specific implementation, when the silk thread becomes loose, the length of the silk thread wound around the reeling and winding mechanism 2 becomes longer, increasing the tension of the silk thread, so that the silk thread is converted from a relaxed state to a stretched state; when the silk thread becomes tight, the length of the silk thread wound around the reeling and winding mechanism 2 becomes shorter, reducing the tension of the silk thread, so that the silk thread is converted from an overtight state to a stretched state, thereby achieving the function of automatic loosening and tightening.

[0030] like Figure 3-Figure 5 As shown, the wire-reeling and retracting mechanism 2 comprises: a hydraulic cylinder 21, which is filled with hydraulic oil; a plurality of pairs of winding assemblies are symmetrically connected on both sides of the hydraulic cylinder 21, corresponding one to one with the number of wires, and are evenly arranged along the length direction of the hydraulic cylinder 21, the wires are wound on the corresponding winding assemblies one by one, and the number of wires wound on the winding assemblies is at least one circle, and the more circles there are, the greater the degree of wire-reeling and retracting; the winding assembly comprises: a pressure rod 22, one end of which is rotatably connected to a first winding wheel 23, and the other end is rotatably connected to the hydraulic cylinder 21 through a connecting rod 26, and the connecting rod 26 is rotatably connected to the pressure rod 22 and the hydraulic cylinder 21; a plurality of piston cylinders 24 are provided on the surface of the hydraulic cylinder 21, and the piston cylinder 24 corresponds one to one with the winding assemblies, and a piston rod 25 is sealed and movably connected inside the hydraulic cylinder 21, and one end of the piston rod 25 is rotatably connected to the pressure rod 22, and when the pressure rod 22 rotates, it drives the piston rod 25 to contract in the piston cylinder 24, thereby driving the flow of hydraulic oil.

[0031] like Figure 2As shown, a pair of crimping rollers 3 are symmetrically connected on both sides of the wire-reeling and wire-unreeling mechanism 2. The wires all pass under the two crimping rollers 3 and are pressed by the two crimping rollers 3. The crimping rollers 3 are connected to the frame 1 and can move up and down. In this embodiment, the two crimping rollers 3 are flush in height and are both lower than the height of the wire-reeling and wire-unreeling mechanism 2; an oil cylinder 9 is installed on the frame 1, and the oil cylinder 9 is connected to the hydraulic cylinder 21 through an oil pipe 8. A movable cylinder column 10 is sealed and connected in the oil cylinder 9, and a connecting frame 5 is connected to the two crimping rollers 3, and the cylinder column 10 is fixedly connected to the connecting frame 5; the inner diameter of the oil cylinder is larger than the inner diameter of the piston cylinder 24. According to Pascal's law and the incompressibility principle of liquids, the pressures at both ends of the hydraulic oil are the same, and the cross-sectional area of ​​the cylinder column 10 is larger than the cross-sectional area of ​​the piston rod 25. Since the force applied to the wire is limited, the piston rod 25 can drive the movement of the cylinder column 10 by a small force, thereby increasing the sensitivity of adjusting the tightness of the wire.

[0032] In specific implementation, when the wire is too tight, the pressure of the wire on the piston rod 25 increases, driving the two pressure rods 22 on the same pair of winding assemblies to rotate closer to each other, so that the length of the wire wrapped around the winding assembly is reduced, and the wire is loosened. When the pressure rod 22 rotates, it drives the piston rod 25 to contract into the piston cylinder 24, driving the hydraulic oil to flow. According to the incompressible principle of liquid, the hydraulic oil lifts the cylinder column 10 to rise, driving the two pressure rollers 3 to rise, reducing the degree of compression on the wire, and further relaxing the wire. When the wire is too loose, the pressure of the wire on the piston rod 25 decreases, and the cylinder column 10 The two wire pressing rollers 3 are lowered due to the gravity, and the wire pressing rollers 3 are lowered to press the wire tightly, and the cylinder column 10 is lowered to drive the hydraulic oil to flow, and the hydraulic oil drives the piston rod 25 to extend outward, so that the two pressure rods 22 on the same pair of winding assemblies rotate away from each other, so that the length of the wire wound on the winding assembly is increased, and the wire is further tightened. This embodiment automatically adjusts the degree of compression of the wire while releasing and retracting the wire through the lifting and lowering of the wire pressing rollers 3 and the rotation of the pressure rods 22. The two adjustment actions ensure that the wire is not broken and improve the sensitivity of automatic adjustment of the wire.

[0033] Preferably, Figure 1 and Figure 8 As shown, a threaded rod 11 is fixedly connected to the cylinder column 10, and a threaded sleeve 12 threadedly connected to the threaded rod 11 is rotatably connected to the connecting frame 5. Rotating the threaded sleeve 12 can adjust the height of the connecting frame 5 and the wire pressing roller 3, thereby adjusting the degree of compression of the wire.

[0034] Preferably, a bracket 27 is fixedly connected to the bottom of the hydraulic cylinder 21, corresponding one to one with the winding assembly; a pair of second winding wheels 28 are symmetrically connected to the bracket 27, and the second winding wheels 28 are fixed in position to tighten the wire so that the wire can be smoothly wound on the winding assembly.

[0035] Preferably, at least two winding grooves 231 are provided on the surface of the first winding wheel 23. In this embodiment, since the silk thread is wound around the winding assembly once, the silk thread passes around the first winding wheel 23 twice. There are two winding grooves 231 on the first winding wheel 23, which avoids friction between the silk threads during transportation.

[0036] Another embodiment:

[0037] like Figure 1 and 6 As shown, an adjusting cylinder 29 is provided on the hydraulic cylinder 21, and the adjusting cylinder 29 is also filled with hydraulic oil. A movable adjusting column 210 is sealed and connected in the adjusting cylinder 29, and a rod body 211 is connected to the adjusting column 210, and a worm 212 is fixedly connected to the surface of the rod body 211; a bracket 13 is fixedly connected to the frame 1, and a worm wheel 14 meshing with the worm 212 is rotatably connected to the bracket 13, and a coaxially rotating turntable 15 is connected to the worm wheel 14, and the worm wheel 14 is driven to rotate by rotating the turntable 15, and then the worm 212 is driven to rotate, thereby driving the adjusting column 210 to rise and fall. When the adjusting column 210 is raised and lowered, the internal pressure of the hydraulic cylinder 21 can be adjusted. For example, when the adjusting column 210 descends, it pushes the hydraulic oil in the hydraulic cylinder 21 to flow, and the hydraulic oil pushes the piston rod 25 to move outward and the cylinder column 10 to rise, thereby increasing the length of the wire on the winding assembly. When the cylinder column 10 rises, it drives the wire pressing roller 3 to rise, reducing the degree of compression on the wire, so as to achieve the purpose of manually adjusting the tightness of the wire.

[0038] Preferably, Figure 7 As shown, the frame 1 is provided with sliding holes 101 corresponding to the wire-pressing roller 3 one by one, and a slider 4 is slidably connected in the sliding hole 101. The wire-pressing roller 3 is rotatably connected to the slider 4, and the slider 4 is fixedly connected to the connecting frame 5. A guide column 6 is connected in the sliding hole 101 and is slidably connected to the slider 4. A spring 7 is connected to the guide column 6. The spring 7 supports the wire-pressing roller 3, reduces the gravity of the wire-pressing roller 3, and enables the cylinder column 10 to lift the wire-pressing roller 3 to rise.

[0039] The working principle is as follows: the silk thread Figure 1As shown, they are respectively wound on two wire pressing rollers and a wire taking-up and unwinding mechanism. When the wire is too tight, the pressure of the wire on the piston rod 25 increases, driving the two pressure rods 22 on the same pair of winding assemblies to rotate closer to each other, so that the length of the wire wound on the winding assembly is reduced, and the wire is loosened. When the pressure rod 22 rotates, it drives the piston rod 25 to retract into the piston cylinder 24, driving the hydraulic oil to flow, and the hydraulic oil lifts the cylinder column 10 to rise, driving the two wire pressing rollers 3 to rise, reducing the degree of pressure on the wire, and further relaxing the wire; when the wire is too loose, the pressure of the wire on the piston rod 25 is reduced, and the cylinder column 10 descends due to the gravity of the two wire pressing rollers 3. The wire pressing rollers 3 descend to press the wire, and the descent of the cylinder column 10 drives the hydraulic oil to flow, and the hydraulic oil drives the piston rod 25 to extend outward, so that the two pressure rods 22 on the same pair of winding assemblies rotate away from each other, so that the length of the wire wound on the winding assembly is increased, and the wire is further tightened, so as to achieve the purpose of automatic winding and tensioning of the wire.

[0040] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A yarn pulling and stretching mechanism for a spinning machine, characterized in that: include: Rack(1); and a wire-reeling and -winding mechanism (2) mounted on the frame (1), wherein the wire is wound around the wire-reeling and -winding mechanism (2) for at least one turn, and the wire-reeling and -winding mechanism (2) automatically reels in and releases the wire according to the tightness of the wire; When the silk thread becomes loose, the length of the silk thread wound on the wire-retracting and -releasing mechanism (2) becomes longer, thereby increasing the tension of the silk thread, so that the silk thread is converted from a relaxed state to a tightened state; When the wire becomes tighter, the length of the wire wound on the wire-retracting and -releasing mechanism (2) becomes shorter, reducing the tension of the wire, so that the wire is converted from an overtight state to a stretched state; The wire retracting and releasing mechanism (2) comprises: a hydraulic cylinder (21) filled with hydraulic oil; a plurality of pairs of winding assemblies are symmetrically connected to both sides of the hydraulic cylinder (21), corresponding one to one with the number of wires and evenly arranged along the length direction of the hydraulic cylinder (21), and the wires are wound one by one on the corresponding winding assemblies; The winding assembly comprises: a pressure rod (22), one end of which is rotatably connected to a first winding wheel (23), and the other end of which is rotatably connected to the hydraulic cylinder (21) via a connecting rod (26); a plurality of piston cylinders (24) are provided on the surface of the hydraulic cylinder (21), the interior of which is sealed and movably connected to a piston rod (25), and one end of the piston rod (25) is rotatably connected to the pressure rod (22); A pair of wire pressing rollers (3) are symmetrically connected on both sides of the wire taking-up and paying-out mechanism (2), and the wires are passed under the two wire pressing rollers (3). The wire pressing rollers (3) are connected to the frame (1) and can move up and down. The two wire pressing rollers (3) are flush with each other and are both lower than the height of the wire taking-up and paying-out mechanism (2); The frame (1) is provided with an oil cylinder (9), the oil cylinder (9) and the hydraulic cylinder (21) are connected via an oil pipe (8), a movable cylinder column (10) is sealedly connected inside the oil cylinder (9), the two wire pressing rollers (3) are connected with a connecting frame (5), and the cylinder column (10) is fixedly connected to the connecting frame (5); when the wire is too tight, the pressure of the wire on the piston rod (25) increases, driving the two pressure rods (22) on the same pair of winding assemblies to rotate closer to each other, so that the length of the wire wound on the winding assembly is reduced, the wire is loosened, and when the pressure rod (22) rotates, it drives the movable rod (25) to rotate. The plug rod (25) contracts into the piston cylinder (24), driving the hydraulic oil to flow, and the hydraulic oil lifts the cylinder column (10) upward, driving the two wire pressing rollers (3) to rise, thereby reducing the degree of compression of the wire. When the wire is too loose, the pressure of the wire on the piston rod (25) is reduced, and the cylinder column (10) is lowered by the gravity of the two wire pressing rollers (3), compressing the wire. The lowering of the cylinder column (10) drives the hydraulic oil to flow, and the hydraulic oil drives the piston rod (25) to extend outward, so that the two pressure rods (22) on the same pair of winding assemblies rotate away from each other, so that the length of the wire wound on the winding assembly increases, and the wire is tightened.

2. A yarn pulling and stretching mechanism for a spinning machine according to claim 1, characterized in that: The frame (1) is provided with sliding holes (101) corresponding to the wire pressing rollers (3) one by one, a slider (4) is slidably connected in the sliding hole (101), the wire pressing roller (3) is rotatably connected to the slider (4), and the slider (4) is fixedly connected to the connecting frame (5), and a guide column (6) is connected in the sliding hole (101) and is slidably connected to the slider (4), and a spring (7) is connected to the guide column (6).

3. A yarn pulling and stretching mechanism for a spinning machine according to claim 2, characterized in that: A support frame (27) is fixedly connected to the bottom of the hydraulic cylinder (21), corresponding one to one with the winding assembly; a pair of second winding wheels (28) are symmetrically connected to the support frame (27).

4. A yarn pulling and stretching mechanism for a spinning machine according to claim 3, characterized in that: The hydraulic cylinder (21) is provided with an adjustment cylinder (29), a movable adjustment column (210) is sealedly connected inside the adjustment cylinder (29), a rod body (211) is connected to the adjustment column (210), a worm (212) is fixedly connected to the surface of the rod body (211); a bracket (13) is fixedly connected to the frame (1), a worm wheel (14) meshing with the worm wheel (212) is rotatably connected to the bracket (13), and a coaxially rotating turntable (15) is connected to the worm wheel (14).

5. A yarn pulling and stretching mechanism for a spinning machine according to claim 4, characterized in that: A threaded rod (11) is fixedly connected to the cylinder column (10), and a threaded sleeve (12) threadably connected to the threaded rod (11) is rotatably connected to the connecting frame (5).

6. A yarn pulling and stretching mechanism for a spinning machine according to claim 1 or 5, characterized in that: At least two winding grooves (231) are provided on the surface of the first winding wheel (23).

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