CN113862848A

CN113862848A - Yarn clamping device for spinning frame

Info

Publication number: CN113862848A
Application number: CN202111259380.7A
Authority: CN
Inventors: 林锦涛; 杨杭杰; 曾庆宏
Original assignee: Napo Tongyi New Silk Technology Industry Co Ltd
Current assignee: Napo Tongyi New Silk Technology Industry Co Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2021-12-31

Abstract

The invention relates to the field of spinning, in particular to a yarn clamping device for a spinning frame, which comprises a yarn winding wheel and a yarn tensioning device which are arranged on a frame, guide frames which are symmetrically arranged on two sides of the yarn tensioning device, and an induction device which is arranged between the guide frames and the yarn tensioning device, wherein the yarn tensioning device comprises a fixed yarn disc, a movable yarn disc and a magnetic force rebounding assembly, the fixed yarn disc is fixedly arranged on the frame through a fixing piece, the movable yarn disc can move relative to the fixed yarn disc, a moving adjusting device which is used for driving the movable yarn disc to move is also arranged on the frame, the direction of clamping yarns between the fixed yarn disc and the movable yarn disc is also vertical to the direction of guiding yarns between the two guide frames, the application realizes better clamping of the yarns through the action of the magnetic force rebounding assembly and the moving adjusting device on the movable yarn disc, the condition that the yarn is loosened excessively or clamped excessively is avoided, and the smooth operation of the yarn is ensured.

Description

Yarn clamping device for spinning frame

Technical Field

The invention relates to the field of spinning, in particular to a yarn clamping device for a spinning frame.

Background

The knitting machine is a textile device which utilizes a knitting needle to form coils by yarns of various raw materials and varieties and then is connected into knitted fabrics in a series-sleeved mode, a yarn clamping device is an important component which is arranged on the knitting machine and ensures uniform yarn feeding tension and maintains normal yarn conveying, the yarn clamping device in the prior art comprises two steel yarn clamping discs which are assembled in a matching mode, the two yarn clamping discs are pressed through a pressure spring, the yarns penetrate through the two yarn clamping discs, however, most of the existing yarn clamping devices are pressed through the pressure spring in the yarn clamping aspect, deviation can occur for a long time, a tensioning mechanism capable of adjusting yarn clamping is not provided, and the problem that the yarns are loosened or excessively clamped between the two yarn clamping discs easily occurs.

The present disclosure of chinese patent, CN201720603121.4, is a yarn clamping device for spinning machine, comprising two yarn clamping discs which are assembled together, wherein the yarn clamping discs comprise an upper disc and a lower disc, the upper disc and the lower disc are fastened together, arc-shaped grooves are formed on both the upper disc and the lower disc, when fastened, a circular cavity is formed in the yarn clamping disc by the two arc-shaped grooves, and a circular heating pipe is connected in the circular cavity.

According to the above-mentioned patent, this patent has realized pressing from both sides tightly to the yarn according to the hanging wall and the lower wall that press from both sides the yarn dish, still effectual messenger's yarn obtains leveling through ring shape heating pipe, the smoothness degree of yarn has been improved, however, this patent does not have the mechanism of adjusting to the yarn dish, it is loose or the tight excessive condition of clamp to make the yarn appear easily, this presss from both sides the yarn dish and realizes pressing from both sides tightly to the yarn through the effort of pressure spring, the tight condition of deviation also can appear pressing from both sides, combine these two problems, consequently, need one kind can adjust yarn rate of tension and can guarantee to press from both sides the yarn device that the yarn dish accurately clamped the yarn.

Disclosure of Invention

Based on this, it is necessary to provide a yarn clamping device for a spinning frame aiming at the problems in the prior art, and the application realizes better clamping of the yarn through the action of the magnetic resilience assembly and the movement adjusting device on the movable yarn disc, avoids the condition that the yarn is loosened excessively or clamped excessively, and ensures that the operation of the yarn is smoother.

In order to solve the problems of the prior art, the invention adopts the technical scheme that:

the invention provides a yarn clamping device for a spinning frame, which comprises a yarn winding wheel and a yarn tensioning device which are arranged on a rack, guide frames which are symmetrically arranged on two sides of the yarn tensioning device, and an induction device used for inducing the yarn shaking amplitude is also arranged between the guide frames and the yarn tensioning device.

Preferably, the magnetic force subassembly of kick-backing is including fixed sleeve, movable bush and magnetic force elastic mechanism, the fixed sleeve is fixed to be set up on removing adjusting device, the coaxial cover of movable bush is established on fixed sleeve and movable bush still coaxial fix on the one side that fixed yarn dish was kept away from to movable yarn dish, be equipped with the card strip along its axis direction on fixed sleeve's the outer wall, and still seted up the draw-in groove of activity joint on the card strip on movable bush's the inner wall, still the cover is equipped with a compression spring and this compression spring is located between movable bush's the cover establishment end and the fixed sleeve's stiff end on the fixed sleeve, still be equipped with a magnetic force elastic mechanism between fixed sleeve and the movable bush.

Preferably, the magnetic elastic mechanism comprises a first common magnet and a second common magnet, the first common magnet and the second common magnet are both in a disc-shaped structure, the first common magnet and the second common magnet repel each other in the same polarity, the first common magnet and the second common magnet are respectively fixed inside the movable bushing and the fixed sleeve through a limiting ring, and the first common magnet and the second common magnet are coaxial with the movable yarn disc.

Preferably, the movable adjusting device comprises a guide post and a guide seat, the guide seat is fixedly arranged on the frame, one end of the guide post is fixedly arranged at the fixed end of the fixed sleeve through a fixed disc, the guide post can also move along the axis direction of the fixed yarn disc on the guide seat, a driving mechanism for driving the guide post to move is further arranged on the frame, and a baffle is further arranged at one end, far away from the fixed disc, of the guide post.

Preferably, the driving mechanism comprises an electric push rod which is fixedly arranged on the frame through a base, the output direction of the electric push rod faces the guide post, and a push plate fixed at the end part of the guide post is further arranged at the output end of the electric push rod.

Preferably, actuating mechanism is including a slide bar, a round mouth has coaxially been seted up on the guide post, the one end of slide bar is coaxial to be inserted and is established in the round mouth, the other end of slide bar is fixed in the frame through a fixing base, the slide bar inserts the intraoral tip of round and is fixed through a holding ring and is equipped with a first electro-magnet, the round mouth depths of guide post are through the fixed second electro-magnet that is equipped with of a plurality of locating pins, thereby can drive the removal of guide post through the size regulation magnetic force size that changes electric current between first electro-magnet and the second electro-magnet.

Preferably, the movable yarn disc and the fixed yarn disc are identical in structure, a cavity is formed in each of the movable yarn disc and the fixed yarn disc, the cavities in each of the movable yarn disc and the fixed yarn disc are sealed through a sealing cover, and a heating element is arranged in each of the cavities in each of the movable yarn disc and the fixed yarn disc.

Preferably, the heating element is a heating coil, and the inner surfaces of the cavities of the movable yarn disc and the fixed yarn disc are provided with temperature change layers.

Preferably, each guide frame is provided with a guide opening through which the yarn can pass, and each guide opening is internally embedded with a rubber gasket.

Preferably, the induction device comprises an induction seat, the induction seat is fixedly arranged on the rack, a U-shaped opening coaxial with the guide opening on the guide frame is formed in the top of the induction seat, a light-transmitting cover of a U-shaped structure is further arranged at the edge of the U-shaped opening, a transmitter and a receiver are further respectively arranged on two sides of the induction seat, the working ends of the transmitter and the receiver face the light-transmitting cover, and a pressure sensor with an output end abutting against a compression spring is further arranged at the fixed end of the fixed yarn disc.

Compared with the prior art, the invention has the beneficial effects that:

1. this application has realized that the yarn can be better to obtain pressing from both sides tight through the effect of magnetic force resilience subassembly and removal adjusting device to activity yarn dish, avoids the yarn loose excessive or pressed from both sides the excessive condition of tight appearing, guarantees that the function of yarn is more level and smooth.

2. This application has realized that the activity bush cover can be quick when receiving external force to slide on fixed sleeve to home position through the effect of magnetic force elastic mechanism between activity bush and the fixed sleeve, keeps pressing from both sides tightly to the yarn.

3. This application has realized that the movable sleeve can be rebounded to the primary position after receiving external force on fixed sleeve through the power of mutual repulsion between first ordinary magnet and the ordinary magnet of second, compares with current pressure spring for the clamp of activity yarn dish is tight more accurate, guarantees that the position accuracy that the activity yarn dish can follow after the pressurized gets back to original position department that presss from both sides tightly to the yarn.

4. This application has realized the moving as a whole of activity yarn dish and magnetic force subassembly of kick-backing through actuating mechanism to the removal of guide post to adjusted the distance between activity yarn dish and the fixed yarn dish, guaranteed that the tight degree of the clamp of the resilience of activity yarn dish is in suitable state.

5. This application has realized the bulk movement of activity yarn dish and magnetic force resilience subassembly through the promotion of electronic push rod to the guide post.

6. This application has realized the removal to the guide post through the magnetic force change between first electro-magnet and the second electro-magnet, has accomplished the interval between activity yarn dish and the fixed yarn dish and has adjusted.

7. This application has realized leveling the yarn through the setting of activity yarn dish and fixed yarn dish interior heating member, has played ironing effect.

8. This application has realized heating coil heating back heat can spread fast to the internal surface of activity yarn dish and fixed yarn dish through the setting on activity yarn dish and fixed yarn dish internal surface temperature change layer, has improved the level and smooth effect to the yarn.

9. This application has realized the protection to the yarn through the setting of the intraoral rubber packing ring of leading truck's direction, has also made the quality of yarn to obtain the guarantee when having guaranteed the yarn normal operating.

10. This application is through the judgement of transmitter and receiver on the response seat to the yarn, and the rate of tension that has realized the yarn can order about the regulation of removal adjusting device to the activity yarn dish after obtaining to judge, through compression spring to pressure sensor's pressure, the tight condition of clamp of yarn is further judged, more effectual regulation to the yarn rate of tension.

Drawings

FIG. 1 is a schematic perspective view of the embodiment;

FIG. 2 is a front view of the embodiment;

FIG. 3 is a partial perspective view of the embodiment;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a schematic perspective view of a first embodiment of the mobile adjustment device;

FIG. 6 is a schematic perspective view of a second embodiment of the mobile adjustment device;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a cross-sectional view taken at A-A of FIG. 7;

FIG. 9 is a schematic perspective view of a yarn tensioning device;

FIG. 10 is a front view of FIG. 9;

FIG. 11 is a cross-sectional view taken at B-B of FIG. 10;

FIG. 12 is a perspective view of a stationary yarn disk;

FIG. 13 is an exploded perspective view of the stationary yarn disc;

FIG. 14 is a perspective view of the guide frame and the sensing device;

fig. 15 is a left side view of fig. 14.

The reference numbers in the figures are:

1-a frame;

2-a yarn winding wheel;

3-a yarn tensioning device; 3 a-fixing the yarn disc; 3a 1-cover; 3 b-a movable yarn disc; 3 c-a magnetic rebound assembly; 3c 1-fixed sleeve; 3c 11-card bar; 3c 2-movable liner; 3c 21-card slot; 3c 3-magnetoelastic mechanism; 3c31 — first common magnet; 3c 32-a second common magnet; 3c 33-stop collar; 3c 4-compression spring;

4-a guide frame; 4 a-a guide port; 4 b-a rubber gasket;

5-a fixing piece;

6-moving the adjusting device; 6 a-a guide post; 6a 1-fixed disk; 6a 2-baffle; 6a 3-round mouth; 6 b-a guide seat; 6 c-a drive mechanism; 6c 1-electric push rod; 6c 11-push plate; 6c 2-base; 6c 3-slide bar; 6c 4-fixed seat; 6c 5-positioning ring; 6c6 — first electromagnet; 6c 7-locating pins; 6c 8-second electromagnet;

7-an induction device; 7 a-an induction seat; 7a1 — light transmissive cover; 7 b-a transmitter; 7 c-a receiver; 7 d-pressure sensor;

8-heating element; 8 a-a heating coil; 8 b-temperature change layer.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

As shown in fig. 1-4:

a yarn clamping device for a spinning frame comprises a yarn winding wheel 2 and a yarn tensioning device 3 which are arranged on a frame 1, and guide frames 4 which are symmetrically arranged on two sides of the yarn tensioning device 3, and an induction device 7 used for inducing the yarn shaking amplitude is further arranged between the guide frames 4 and the yarn tensioning device 3, the yarn tensioning device 3 comprises a fixed yarn disc 3a, a movable yarn disc 3b and a magnetic rebounding assembly 3c, the fixed yarn disc 3a is fixedly arranged on the rack 1 through a fixing piece 5, the movable yarn disc 3b can move relative to the fixed yarn disc 3a, a moving adjusting device 6 used for driving the movable yarn disc 3b to move is further arranged on the rack 1, the magnetic rebounding assembly 3c is arranged between the movable yarn disc 3b and the moving adjusting device 6, and the direction of clamping yarns between the fixed yarn disc 3a and the movable yarn disc 3b is perpendicular to the direction of guiding yarns between the two guide frames 4.

Based on the above embodiment, most of the existing yarn clamping devices clamp yarns by the action force of the pressure spring, however, the pressure spring is acted for a long time, the tension is insufficient, and because there is no mechanism capable of adjusting the tension of the yarns, the yarn clamping disc is easy to be clamped excessively or loosened when clamping the yarns, therefore, in order to solve the technical problem of how to better clamp the yarns, an operator firstly winds a roll of yarns on the yarn winding wheel 2, then, the operator passes the thread ends between the two guide frames 4 and the movable yarn disc 3b and the fixed yarn disc 3a until the thread ends are placed on the textile tool, with the use of the yarns, the shaking of the yarns in the textile process causes the yarns to touch the movable yarn disc 3b, the movable yarn disc 3b is buffered under the action of the magnetic rebounding assembly 3c, then, the movable yarn disc 3b rebounds to the original position under the action of the magnetic rebounding assembly 3c to clamp the yarns, the movable yarn disc 3b passively performs loosening and tightening operations under the operation of yarns, when the yarns operate, the sensing device 7 judges whether the movable yarn disc 3b is excessively clamped or loosened according to the vibration amplitude of the yarns, if abnormal conditions occur, the movable adjusting device 6 needs to adjust the distance between the movable yarn disc 3b and the fixed yarn disc 3a, the movable yarn disc 3b loosens the yarns or further clamps the yarns according to the conditions, and the yarns are guaranteed to be normally clamped between the movable yarn disc 3b and the fixed yarn disc 3 a.

Further, in order to solve the technical problem of how the magnetic rebounding assembly 3c causes the movable yarn disc 3b to clamp the yarn, as shown in fig. 9-11:

the magnetic rebounding assembly 3c includes a fixed sleeve 3c1, a movable bushing 3c2 and a magnetic elastic mechanism 3c3, the fixed sleeve 3c1 is fixedly disposed on the movement adjusting device 6, the movable bushing 3c2 is coaxially sleeved on the fixed sleeve 3c1, the movable bushing 3c2 is further coaxially fixed on one surface of the movable yarn disc 3b far away from the fixed yarn disc 3a, a clamping strip 3c11 is disposed on the outer wall of the fixed sleeve 3c1 along the axial direction of the fixed sleeve, a clamping groove 3c21 movably clamped on the clamping strip 3c11 is further disposed on the inner wall of the movable bushing 3c2, a compression spring 3c4 is further sleeved on the fixed sleeve 3c1, the compression spring 3c4 is located between the sleeved end of the movable bushing 3c2 and the fixed end of the fixed sleeve 3c1, and a magnetic elastic mechanism 3c3 is further disposed between the fixed sleeve 3c1 and the movable bushing 3c 2.

Based on the above embodiment, when the yarn runs, the movable yarn disc 3b has a clamping force in the direction of the fixed yarn disc 3a through the action of the magnetic rebounding assembly 3c, the movable yarn disc 3b makes the movable bushing 3c2 slide on the fixed sleeve 3c1 under the vibration of the yarn, due to the magnetic elastic mechanism 3c3, the movable bushing 3c2 rebounds to the original position immediately after sliding on the fixed sleeve 3c1 to continue clamping the yarn, when the movable bushing 3c2 slides on the fixed sleeve 3c1, the clamping slot 3c21 on the movable bushing 3c2 slides on the clamping strip 3c11, so that the movable bushing 3c2 can only move on the fixed sleeve 3c1 along the axial direction thereof, and cannot rotate on the fixed sleeve 3c1, thereby ensuring stable clamping of the movable yarn disc 3b on the yarn.

Further, in order to solve the technical problem of how the magnetoelastic mechanism 3c3 makes the movable bushing 3c2 rebound after receiving an external force, as shown in fig. 11:

the magnetic elastic mechanism 3c3 includes a first common magnet 3c31 and a second common magnet 3c32, the first common magnet 3c31 and the second common magnet 3c32 are both disc-shaped structures, the first common magnet 3c31 and the second common magnet 3c32 are also repelled by the same polarity, the first common magnet 3c31 and the second common magnet 3c32 are respectively fixed inside the movable bushing 3c2 and inside the fixed sleeve 3c1 through a limit ring 3c33, and the first common magnet 3c31 and the second common magnet 3c32 are both coaxial with the movable reel 3 b.

Based on the above embodiment, when the movable bush 3c2 slides towards the fixed sleeve 3c1 under external force, due to the mutual repulsion force between the first common magnet 3c31 and the second common magnet 3c32, the first common magnet 3c31 immediately drives the movable bush 3c2 to rebound outwards under the repulsion of the second common magnet 3c32, so that the movable bush 3c2 returns to the original position, and the yarn is clamped by the movable yarn disc 3 b.

Further, in order to solve the technical problem of how to adjust the yarn tension, as shown in fig. 3 and 4:

the movement adjusting device 6 comprises a guide post 6a and a guide seat 6b, the guide seat 6b is fixedly arranged on the machine frame 1, one end of the guide post 6a is fixedly arranged on the fixed end of the fixed sleeve 3c1 through a fixed disc 6a1, the guide post 6a can also move on the guide seat 6b along the axial direction of the fixed yarn disc 3a, a driving mechanism 6c for driving the guide post 6a to move is further arranged on the machine frame 1, and a baffle plate 6a2 is further arranged at one end of the guide post 6a far away from the fixed disc 6a 1.

Based on the above embodiment, after the sensing device 7 senses the amplitude change of the yarn, if the amplitude is too large, it is indicated that the yarn is too loose clamped by the movable yarn disc 3b, if the amplitude is too small, it is indicated that the yarn is too tight clamped by the movable yarn disc 3b, and when the adjusting device 6 is moved to adjust, the driving mechanism 6c drives the guide post 6a to move on the guide seat 6b, along with the movement of the guide post 6a, the movable yarn disc 3b and the magnetic rebounding component 3c move along with the guide post 6a, and the gap between the movable yarn disc 3b and the fixed yarn disc 3a is adjusted, so that the tightness of the movable yarn disc 3b in clamping the yarn on the fixed yarn disc 3a is adjusted, and the yarn is ensured to obtain a proper tensioning degree.

Further, in order to solve the technical problem of how the driving mechanism 6c drives the guide post 6a to move, as shown in fig. 5:

the driving mechanism 6c comprises an electric push rod 6c1, the electric push rod 6c1 is fixedly arranged on the frame 1 through a base 6c2, the output direction of the electric push rod 6c1 faces the guide post 6a, and the output end of the electric push rod 6c1 is also provided with a push plate 6c11 fixed at the end part of the guide post 6 a.

According to the above embodiment, when the driving mechanism 6c is driven, the electric push rod 6c1 pushes the guide post 6a to move via the push plate 6c11, and the guide post 6a moves on the guide base 6 b.

Further, in order to solve the technical problem of how the driving mechanism 6c drives the guide post 6a to move, as shown in fig. 6-8:

the driving mechanism 6c comprises a sliding rod 6c3, a round opening 6a3 is coaxially formed on the guide column 6a, one end of a sliding rod 6c3 is coaxially inserted into the round opening 6a3, the other end of the sliding rod 6c3 is fixed on the machine frame 1 through a fixing seat 6c4, a first electromagnet 6c6 is fixedly arranged at the end part of the sliding rod 6c3 inserted into the round opening 6a3 through a positioning ring 6c5, a second electromagnet 6c8 is fixedly arranged at the deep part of the round opening 6a3 of the guide column 6a through a plurality of positioning pins 6c7, and the magnetic force between the first electromagnet 6c6 and the second electromagnet 6c8 can be adjusted by changing the current so as to drive the guide column 6a to move.

Based on the above embodiment, when the driving mechanism 6c is driven, the first electromagnet 6c6 and the second electromagnet 6c8 are simultaneously energized, the current of the first electromagnet 6c6 and the second electromagnet 6c8 is changed, so that the magnetic force between the first electromagnet 6c6 and the second electromagnet 6c8 is changed, the magnitude of the magnetic force between the first electromagnet 6c6 and the second electromagnet 6c8 is adjusted according to the judgment of the yarn tension degree by the sensing device 7, if the yarn tension is too loose, the current of the first electromagnet 6c6 and the second electromagnet 6c8 is increased, so that the magnetic force between the first electromagnet 6c6 and the second electromagnet 6c8 is increased, the repulsive force between the first electromagnet 6c6 and the second electromagnet 6c8 is increased, so that the second electromagnet 6c8 moves away from the first electromagnet 6c6, and the guiding column 6a also drives the movable yarn disc 3b to move towards the fixed yarn disc 3a, if the yarn is over-tensioned, the current of the first electromagnet 6c6 and the second electromagnet 6c8 is reduced, so that the magnetic force between the first electromagnet 6c6 and the second electromagnet 6c8 is reduced, the repulsive force between the first electromagnet 6c6 and the second electromagnet 6c8 is reduced, the second electromagnet 6c8 moves towards the first electromagnet 6c6, and the guide pillar 6a also drives the movable reel 3b to move away from the fixed reel 3 a.

Further, in order to solve the technical problem of how to keep the yarn flat when the movable reel 3b and the fixed reel 3a clamp the yarn, as shown in fig. 12 and 13:

the movable yarn disc 3b and the fixed yarn disc 3a are identical in structure, a cavity is formed in each of the movable yarn disc 3b and the fixed yarn disc 3a, the cavities in each of the movable yarn disc 3b and the fixed yarn disc 3a are sealed through a sealing cover 3a1, and a heating element 8 is further arranged in each of the cavities in each of the movable yarn disc 3b and the fixed yarn disc 3 a.

Based on the above embodiment, when the movable yarn disc 3b clamps the yarn on the fixed yarn disc 3a, the heating elements 8 in the movable yarn disc 3b and the fixed yarn disc 3a are heated, so that the clamping surfaces of the movable yarn disc 3b and the fixed yarn disc 3a are heated, and the yarn passes through the movable yarn disc 3b and the fixed yarn disc 3a to be flattened through the contact between the yarn and the surfaces of the movable yarn disc 3b and the fixed yarn disc 3 a.

Further, in order to solve the technical problem of how the heating member 8 is heated, as shown in fig. 13:

the heating element 8 is a heating coil 8a, and the inner surfaces of the cavities of the movable yarn disc 3b and the fixed yarn disc 3a are both provided with a temperature change layer 8 b.

Based on the above-mentioned embodiment, heating coil 8a heats in the cavity of activity yarn dish 3b and fixed yarn dish 3a for the temperature that heating coil 8a heated spreads to on the temperature change layer 8b, because the surface of temperature change layer 8b laminating in activity yarn dish 3b and fixed yarn dish 3a cavity, consequently, temperature change layer 8b can be fast with heat diffusion to the surface of activity yarn dish 3b and fixed yarn dish 3a, more effective yarn levels.

Further, in order to solve the technical problem of how to ensure that the yarn is always between the movable reel 3b and the fixed reel 3a during operation, as shown in figures 14 and 15:

every leading truck 4 is last all to be offered the guide way 4a that can supply the yarn to pass to still all embedded a rubber packing ring 4b in every guide way 4 a.

Based on the above embodiment, after the yarn passes through the guiding ports 4a of the two guiding frames 4, because the guiding frames 4 are located at two sides of the movable yarn disc 3b and the fixed yarn disc 3a, and the distribution directions of the movable yarn disc 3b and the fixed yarn disc 3a are perpendicular to the distribution directions of the two guiding frames 4, when the yarn runs on the two guiding frames 4, the movable yarn disc 3b can normally clamp the yarn on the fixed yarn disc 3a, and when the yarn moves in the guiding ports 4a of the guiding frames 4, the rubber gasket 4b arranged in the guiding ports 4a ensures that the yarn is not damaged, and the situation that the surface of the yarn is abraded or broken due to friction generated by the guiding ports 4a of the guiding frames 4 when the yarn moves is avoided.

Further, in order to solve the technical problem of how the sensing device 7 senses the yarn motion, as shown in fig. 10, 14 and 15:

the induction device 7 comprises an induction seat 7a, the induction seat 7a is fixedly arranged on the rack 1, a U-shaped opening coaxial with the guide opening 4a on the guide frame 4 is formed in the top of the induction seat 7a, a light-transmitting cover 7a1 with a U-shaped structure is further arranged on the edge of the U-shaped opening, a transmitter 7b and a receiver 7c are further respectively arranged on two sides of the induction seat 7a, working ends of the transmitter 7b and the receiver 7c face to the light-transmitting cover 7a1, and a pressure sensor 7d with an output end abutting against the compression spring 3c4 is further arranged on the fixed end of the fixed yarn disc 3 a.

Based on the above embodiment, when the yarn is in operation, after the yarn tensioning device 3 clamps the yarn, the yarn passes through the U-shaped opening of the sensing seat 7a, since the light-transmitting cover 7a1 is arranged on the U-shaped opening of the sensing seat 7a, the transmitter 7b transmits a signal to the opposite receiver 7c through the light-transmitting cover 7a1 after sensing the yarn shaking amplitude, and drives the driving mechanism 6c to operate after the receiver 7c receives the signal, and according to the yarn judgment, the distance between the movable yarn disc 3b and the fixed yarn disc 3a is adjusted by the driving mechanism 6c, in order to be able to judge the yarn shaking amplitude more accurately, when the yarn shakes to push the movable bushing 3c2 to move on the fixed sleeve, the compression spring 3c4 compresses, and the pressure sensor 7d judges the yarn clamping degree according to the pressure received by the pressure sensor 7d after sensing the pressure of the compression spring 3c4, the yarn tension can be further adjusted.

This application is rebounded subassembly 3c and is removed adjusting device 6 through magnetic force and to the effect of activity reel 3b, realized that the yarn can be better obtain press from both sides tightly, avoid the yarn loose excessively or the tight excessive condition of clamp to appear, guarantee that the function of yarn is more level and smooth, through induction system 7 and the additional action of heating member 8, better realization to the function of yarn and the regulation to the yarn tensioning, improve the operating efficiency of yarn, and then also improved textile quality.

The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A yarn clamping device for a spinning frame comprises a yarn winding wheel (2) and a yarn tensioning device (3) which are arranged on a rack (1), guide frames (4) which are symmetrically arranged on two sides of the yarn tensioning device (3), and a sensing device (7) used for sensing the shaking amplitude of yarn is arranged between the guide frames (4) and the yarn tensioning device (3), and is characterized in that the yarn tensioning device (3) comprises a fixed yarn disc (3a), a movable yarn disc (3b) and a magnetic rebounding assembly (3c), the fixed yarn disc (3a) is fixedly arranged on the rack (1) through a fixing piece (5), the movable yarn disc (3b) can move relative to the fixed yarn disc (3a), a moving adjusting device (6) used for driving the movable yarn disc (3b) to move is further arranged on the rack (1), and the magnetic rebounding assembly (3c) is arranged between the movable yarn disc (3b) and the moving adjusting device (6), the direction of clamping the yarn between the fixed reel (3a) and the movable reel (3b) is also perpendicular to the direction of guiding the yarn between the two guiding carriages (4).

2. The yarn clamping device for the spinning frame as claimed in claim 1, wherein the magnetic force rebounding assembly (3c) comprises a fixed sleeve (3c1), a movable bushing (3c2) and a magnetic force elastic mechanism (3c3), the fixed sleeve (3c1) is fixedly arranged on the movable adjusting device (6), the movable bushing (3c2) is coaxially sleeved on the fixed sleeve (3c1) and the movable bushing (3c2) is also coaxially fixed on the movable yarn disc (3b) at the side far away from the fixed yarn disc (3a), a clamping strip (3c11) is arranged on the outer wall of the fixed sleeve (3c1) along the axial direction of the fixed sleeve, a clamping groove (3c21) movably clamped on the clamping strip (3c11) is further arranged on the inner wall of the movable bushing (3c2), a compression spring (3c4) is further sleeved on the fixed sleeve (3c1) and the compression spring (3c4) is positioned between the fixed end 1 of the movable bushing (3c2) and the fixed sleeve (1), a magnetic elastic mechanism (3c3) is also arranged between the fixed sleeve (3c1) and the movable bush (3c 2).

3. A yarn clamping device for spinning frames as in claim 2, characterized in that said magnetomechanical elastic means (3c3) comprise a first common magnet (3c31) and a second common magnet (3c32), said first common magnet (3c31) and said second common magnet (3c32) being of disc-like configuration, said first common magnet (3c31) and said second common magnet (3c32) being also repelled by the same polarity, said first common magnet (3c31) and said second common magnet (3c32) being fixed inside said movable bush (3c2) and inside said fixed sleeve (3c1) by means of a stop ring (3c33), respectively, and said first common magnet (3c31) and said second common magnet (3c32) being coaxial with said movable reel (3 b).

4. A yarn clamping device for spinning frames according to claim 1, characterized in that the movement adjusting device (6) comprises a guide post (6a) and a guide seat (6b), the guide seat (6b) is fixedly arranged on the frame (1), one end of the guide post (6a) is fixedly arranged on the fixed end of the fixed sleeve (3c1) through a fixed disc (6a1), the guide post (6a) can also move on the guide seat (6b) along the axial direction of the fixed yarn disc (3a), the frame (1) is further provided with a driving mechanism (6c) for driving the guide post (6a) to move, and one end of the guide post (6a) far away from the fixed disc (6a1) is further provided with a baffle (6a 2).

5. A yarn clamping device for spinning frame as claimed in claim 4, characterized in that the driving mechanism (6c) comprises an electric push rod (6c1), the electric push rod (6c1) is fixedly arranged on the frame (1) through a base (6c2), the output direction of the electric push rod (6c1) faces the guide post (6a), and a push plate (6c11) fixed on the end of the guide post (6a) is arranged on the output end of the electric push rod (6c 1).

6. The yarn clamping device for the spinning frame as claimed in claim 4, wherein the driving mechanism (6c) comprises a sliding rod (6c3), the guide post (6a) is coaxially provided with a round opening (6a3), one end of the sliding rod (6c3) is coaxially inserted into the round opening (6a3), the other end of the sliding rod (6c3) is fixed on the frame (1) through a fixing seat (6c4), the end of the sliding rod (6c3) inserted into the round opening (6a3) is fixedly provided with a first electromagnet (6c6) through a positioning ring (6c5), the deep part of the round opening (6a3) of the guide post (6a) is fixedly provided with a second electromagnet (6c8) through a plurality of positioning pins (6c7), and the first electromagnet (6c6) and the second electromagnet (6c8) can adjust the magnetic force by changing the current so as to drive the guide post (6a) to move.

7. The yarn clamping device for the spinning frame as claimed in claim 1, wherein the movable yarn disc (3b) and the fixed yarn disc (3a) have the same structure, a cavity is formed in each of the movable yarn disc (3b) and the fixed yarn disc (3a), the cavities in each of the movable yarn disc (3b) and the fixed yarn disc (3a) are sealed by a sealing cover (3a1), and a heating element (8) is further arranged in each of the cavities in each of the movable yarn disc (3b) and the fixed yarn disc (3 a).

8. Yarn clamping device for spinning frames according to claim 7, characterised in that the heating element (8) is a heating coil (8a) and the inner surfaces of the cavities of the movable yarn disc (3b) and of the fixed yarn disc (3a) are also provided with a temperature-variable layer (8 b).

9. The yarn clamping device for the spinning frame as claimed in claim 1, wherein each guide frame (4) is provided with a guide opening (4a) through which the yarn can pass, and each guide opening (4a) is embedded with a rubber gasket (4 b).

10. The yarn clamping device for the spinning frame as claimed in claim 1, wherein the sensing device (7) comprises a sensing base (7a), the sensing base (7a) is fixedly arranged on the frame (1), a U-shaped opening coaxial with the guide opening (4a) of the guide frame (4) is formed in the top of the sensing base (7a), a U-shaped light-transmitting cover (7a1) is further arranged on the edge of the U-shaped opening, a transmitter (7b) and a receiver (7c) are further respectively arranged on two sides of the sensing base (7a), the working ends of the transmitter (7b) and the receiver (7c) face the light-transmitting cover (7a1), and a pressure sensor (7d) with an output end abutting against the compression spring (3c4) is further arranged on the fixed end of the fixed yarn disc (3 a).