CN116145351A

CN116145351A - Fabric dyeing device

Info

Publication number: CN116145351A
Application number: CN202310431036.4A
Authority: CN
Inventors: 双群; 朱宝林; 周玉稳; 忠涛; 林凯; 双家炜
Original assignee: Yangzhou Huakai Mechanics Co ltd
Current assignee: Yangzhou Huakai Mechanics Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2023-05-23

Abstract

The application relates to the field of fabric dyeing, in particular to a fabric dyeing device, which comprises a dip dyeing pool, a floating piece, a first pull rope and a second pull rope, wherein one end of the first pull rope is connected with the upper end of the floating piece and is used for pulling the floating piece upwards, and one end of the second pull rope is connected with the lower end of the floating piece and is used for pulling the floating piece downwards; when the floating piece is immersed into the dip dyeing liquid in the dip dyeing tank, the liquid level of the dip dyeing liquid is over the hanging rod, and the floating piece moves upwards to be separated from the dip dyeing liquid, so that the dip dyeing liquid can generate water waves in the left-right direction. The first pull rope and the second pull rope pull the floating piece to lift reciprocally, so that the liquid level of the dip dye liquor forms water waves, bidirectional alternate impact, extrusion and penetration are generated on the fabric, the impact, extrusion and penetration actions of the fabric at different moments are continuously changed, the dip dyeing efficiency and the dyeing uniformity degree are improved, and reflected water waves are formed when the water waves generated each time are not completely attenuated to impact, extrude and penetrate the fabric reversely.

Description

Fabric dyeing device

Technical Field

The application relates to the field of fabric dyeing, in particular to a fabric dyeing device.

Background

The fabric in the prior art is generally soaked in a dip dyeing tank to be dyed, however, the dip dyeing liquid in the dip dyeing tank has poor fluidity, so that the uneven dyeing of the fabric is easy to cause, and the dip dyeing efficiency is low.

Therefore, in the prior art, the circulating water pump is used to drive the dip dyeing liquid in the dip dyeing tank to circulate, so as to solve the problems of uneven dyeing and low dip dyeing efficiency, however, when the dip dyeing liquid circulates, the surface of the fabric facing the flowing direction is fully dyed, and the surface facing away from the flowing direction is difficult to fully dyed, so that the problem of uneven dyeing still exists, and in order to achieve the aim that the dyeing degree of both surfaces of the fabric reaches the expectation, the surface facing away from the flowing direction needs to be fully dyed, so that the dip dyeing efficiency is still not high (compared with the dip dyeing efficiency lifting amount before improvement is smaller), and the circulating water pump needs to continuously work, and once the operation is stopped, the flowing dip dyeing liquid is blocked by the fabric and is stopped soon, so that the energy consumption is larger.

Disclosure of Invention

In view of the above, a fabric dyeing device is provided, which has the energy-saving effect while improving the fabric dip dyeing efficiency and the dyeing uniformity.

The application provides a fabric dyeing device, which comprises a dip dyeing tank,

the dyeing device comprises a dip dyeing pond, a floating piece, a first pull rope and a second pull rope, wherein the floating piece is positioned in the dip dyeing pond, one end of the first pull rope is connected with the upper end of the floating piece and used for pulling the floating piece upwards, and one end of the second pull rope is connected with the lower end of the floating piece and used for pulling the floating piece downwards;

the dip dyeing tank is of a rectangular groove structure, the length direction of the dip dyeing tank is set along the left-right direction, the hanging rods are arranged along the length direction of the dip dyeing tank, and the hanging rods are perpendicular to the length direction of the dip dyeing tank;

the hanging rods are symmetrically arranged left and right by taking the center of the dip dyeing tank as a symmetrical point, and the floating piece is positioned on a vertical line where the center of the dip dyeing tank is positioned;

when the floating piece is immersed into the dip dyeing liquid in the dip dyeing tank, the liquid level of the dip dyeing liquid is beyond the hanging rod, the floating piece moves upwards to be separated from the dip dyeing liquid to enable the dip dyeing liquid to generate water waves in the left-right direction, the wave peak of the water waves is higher than the hanging rod, and the wave trough of the water waves is lower than the lower edge of the fabric hung on the hanging rod.

In some possible embodiments of the present application, the dip tank top is provided with a cover plate, the upper end of the first pull rope is connected with the cover plate, the lower end of the first pull rope is connected with the upper end of the floating member, the first pull rope has elasticity, and the first pull rope is in a pulled rope state.

In some possible embodiments of the present application, a first fixed pulley is connected to the bottom of the dip tank, one end of the second pull rope bypasses the first fixed pulley and then is connected to the floating member, and the other end of the second pull rope opens to the upper side of the cover plate.

In some possible embodiments of the present application, the cover plate is provided with a through hole through which the second pull rope passes, and a limiting block is connected to the second pull rope and is located above the cover plate.

In some possible embodiments of the present application, a bracket is disposed above the cover plate, a second fixed pulley is connected to the bracket, one end of the second pull rope, which is far away from the floating member, bypasses the second fixed pulley and is connected to a pull ring, and the limiting block is located between the cover plate and the second fixed pulley.

In some possible embodiments of the present application, the fabric further comprises a weight adapted to be fixedly connected to the lower edge of the fabric hanging on the hanging bar.

In some possible embodiments of the present application, a magnet is fixedly connected to the bottom of the dip dyeing tank, the balancing weight is made of magnetic metal, and the magnet is located right below the balancing weight and is close to the balancing weight.

In some possible embodiments of the present application, the left and right sides of each peg are respectively provided with a mesh plate, the mesh plate is perpendicular to the length direction of the dip-dyeing tank, the lower end of the mesh plate is fixedly connected with the bottom of the dip-dyeing tank, and the upper end of the mesh plate is higher than the central axis of the peg.

In some possible embodiments of the present application, further comprising a cover plate, a servo motor, a bracket, a reel, a first fixed pulley, a third fixed pulley;

the cover plate is covered on the top of the dip dyeing pond, the servo motor and the support are respectively fixedly connected with the cover plate and arranged above the cover plate, the central shaft of the reel is rotationally connected with the support, and the output shaft of the servo motor is in transmission connection with the central shaft of the reel;

the first fixed pulley and the third fixed pulley are respectively connected with the bottom of the dip dyeing pool, one end of the first pull rope penetrates through the cover plate to be connected with the upper end of the floating piece, and the other end of the first pull rope is wound on the reel;

one end of the second stay rope penetrates through the cover plate and sequentially bypasses the third fixed pulley and the first fixed pulley and then is connected with the lower end of the floating piece, and the other end of the second stay rope is wound on the reel;

the winding direction of the first pull rope on the reel is opposite to the winding direction of the second pull rope on the reel.

In some possible embodiments of the present application, further comprising a controller, an infrared distance sensor;

the servo motor and the infrared distance sensor are respectively connected with the controller, the infrared distance sensor is fixed on the lower surface of the floating piece, the detection direction of the infrared distance sensor is vertical downwards, the infrared distance sensor is used for detecting the vertical distance between the lower surface of the floating piece and the liquid level of the dye dip liquid, the detection result is transmitted to the controller, and the controller controls the servo motor to work according to the detection result.

ADVANTAGEOUS EFFECTS OF INVENTION

The first pull rope and the second pull rope pull the floating piece to lift reciprocally, so that the liquid level of the dip dye liquor forms water waves, bidirectional alternate impact, extrusion and penetration are generated on the fabric, the impact, extrusion and penetration actions of the fabric at different moments are continuously changed, the dip dyeing efficiency and the dyeing uniformity degree are improved, and reflected water waves are formed when the water waves generated each time are not completely attenuated to impact, extrude and penetrate the fabric reversely.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features and aspects of the present application and together with the description, serve to explain the principles of the present application.

Fig. 1 shows a schematic structural view of a fabric dyeing apparatus according to an exemplary embodiment of the present application.

Fig. 2 shows a schematic structural view of a fabric dyeing apparatus according to an exemplary embodiment of the present application in an operating state.

Fig. 3 shows a schematic structural view of a fabric dyeing apparatus according to an exemplary embodiment of the present application in another working state.

Fig. 4 shows a schematic structural view of a fabric dyeing apparatus according to an exemplary embodiment of the present application in another working state.

Fig. 5 shows a schematic structural view of a fabric dyeing apparatus according to an exemplary embodiment of the present application in another working state.

Fig. 6 shows a schematic structural view of a fabric dyeing apparatus according to another exemplary embodiment of the present application.

Fig. 7 shows a schematic structural diagram of an electrical module connection according to another exemplary embodiment of the present application.

Description of the reference numerals

100. A dip dyeing pond; 102. a float; 104. a first pull rope; 106. a second pull rope; 108. a fabric; 110. a hanging rod; 112. a cover plate; 114. a first fixed pulley; 116. a limiting block; 118. a bracket; 120. a second fixed pulley; 122. balancing weight; 124. a magnet; 126. a screen plate; 128. a servo motor; 130. a reel; 132. a third fixed pulley; 134. a controller; 136. an infrared distance sensor; 138. dipping dye liquor; 140. a wave of water; 142. and (5) a pull ring.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated. The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. In addition, for the purposes of better illustrating the subject application, it will be apparent to one skilled in the art that numerous specific details are set forth in the various embodiments that follow. The present application may be practiced without some of these specific details. In some embodiments, methods, means and elements well known to those skilled in the art have not been described in detail in order to facilitate the salient features of the present application.

As shown in fig. 1 to 5, the embodiment of the present application provides a fabric dyeing apparatus, which comprises a dip tank 100, and further comprises a floating member 102, a first pull rope 104 and a second pull rope 106, wherein the floating member 102 is positioned in the dip tank 100, one end of the first pull rope 104 is connected with the upper end of the floating member 102 for pulling the floating member 102 upwards, and one end of the second pull rope 106 is connected with the lower end of the floating member 102 for pulling the floating member 102 downwards; the dip dyeing tank 100 is of a rectangular groove structure, the length direction of the dip dyeing tank 100 is arranged along the left-right direction, the hanging rods 110 are arranged along the length direction of the dip dyeing tank 100, and the hanging rods 110 are perpendicular to the length direction of the dip dyeing tank 100; the hanging rods 110 are symmetrically arranged left and right by taking the center of the dip dyeing tank 100 as a symmetrical point, and the floating piece 102 is positioned on a vertical line where the center of the dip dyeing tank 100 is positioned; when the floating member 102 is immersed in the dip dyeing liquid 138 in the dip dyeing tank 100, the liquid level of the dip dyeing liquid 138 is over the hanging rod 110, the floating member 102 moves upwards to be separated from the dip dyeing liquid 138, so that water waves 140 in the left-right direction can be generated by the dip dyeing liquid 138, the wave peak of the water waves 140 is higher than the hanging rod 110, and the wave trough of the water waves 140 is lower than the lower edge of the fabric 108 hung on the hanging rod 110.

In the fabric dyeing apparatus provided in this embodiment, during operation, the first pull rope 104 and the second pull rope 106 pull the floating member 102 to make the floating member 102 continuously reciprocate or intermittently reciprocate along a vertical direction, when the floating member 102 moves down to be immersed in the dip-dyeing liquid 138, the floating member 102 extrudes the dip-dyeing liquid 138 to raise the liquid level of the dip-dyeing liquid 138, the floating member 102 is quickly lifted, the water wave 140 is formed under the action of the hydraulic pressure difference, the water wave 140 propagates along the length direction of the dip-dyeing tank 100, when the water wave 140 encounters the fabric 108 hung on the hanging rod 110, part of energy is absorbed, and at the same time, the water wave 140 generates a sudden lifting hydraulic pressure on the wave-facing surface (the surface facing the water wave 140) of the fabric 108 to make part of the dip-dyeing liquid 138 penetrate the fabric 108 to dip the fabric 108, after the energy of the water wave 140 is attenuated, the rest of the water wave 140 can continue to propagate in the form of waves, the back fabric 108 is impacted, extruded and penetrated and dyed, the water wave 140 collides with the side wall of the dip dyeing pool 100 after crossing all the fabric 108, the reflected water wave 140 impacts, extrudes and penetrates and dyes the other side of the fabric 108, at different moments, the hydraulic pressure, the liquid flow speed and the impact direction of the surface of the fabric 108 are continuously changed, and the water wave 140 is subjected to the action of the hydraulic pressure, the penetration and the impact which are alternately left and right, compared with the circulation flow type dip dyeing in the prior art, the dip dyeing efficiency and the dyeing uniformity are greatly improved, the dip dyeing depth (the inside of the fabric 108 is fully dip dyed in the process of alternately penetrating in two directions) is also improved, because the water wave 140 generated by lifting the floating piece 102 can propagate along the left and right directions each time and is gradually attenuated, namely the reflected reverse water wave 140 exists in each time, and the water waves 140 at the left and right ends are overlapped when being reflected simultaneously, when the overlapped position is above the fabric 108, even if the single wave energy is smaller, the energy of the overlapped wave is still larger, so that even if the floating piece 102 stops being pulled to move up and down, the fabric 108 can be kept for a period of time to be impacted by the water waves 140, and finally, most of the energy of the water waves 140 is consumed by the fabric 108 (the fabric 108 is positioned between the wave crest and the wave trough of the water waves 140, and the water waves 140 do work on the fabric 108 in the propagation process), thereby being beneficial to improving the effective utilization rate of the energy of the water waves 140, and being less in energy consumption required for achieving the same dip dyeing effect and being beneficial to achieving the energy saving effect compared with the prior art. To increase the number of water waves 140, only the float 102 needs to be driven to reciprocate up and down; when the number of the water waves 140 is enough, the traction of the floating member 102 can be suspended to move up and down, when the wave peak height and the wave trough depth of the water waves 140 are insufficient, a worker observes the condition of the water waves 140, when the wave trough is about to reach the position right below the floating member 102, pulls the second pull rope 106, pulls the floating member 102 to move down, when the wave trough reaches the vertical line where the center of the floating member 102 is located, the floating member 102 passes through the wave trough downwards and extrudes the wave trough, the wave trough depth is increased, the wave crest height is increased, then pulls the first pull rope 104 to enable the floating member 102 to rise rapidly, and the reciprocating is carried out for a plurality of times, so that the kinetic energy of each water wave 140 is supplemented.

In some exemplary implementations of the present embodiment, the dip tank 100 is provided with a cover plate 112 at the top, the upper end of the first pull rope 104 is connected to the cover plate 112, the lower end of the first pull rope 104 is connected to the upper end of the float 102, the first pull rope 104 has elasticity, and the first pull rope 104 is in a pulled state.

Through the above-mentioned exemplary implementation of this embodiment, during operation, the second pull rope 106 is pulled, the traction floating member 102 moves downwards to be immersed in the dip-dyeing liquid 138, meanwhile, the first pull rope 104 is stretched, and after the second pull rope 106 is released, the first pull rope 104 contracts by virtue of elasticity, and the traction floating member 102 rises to be separated from the dip-dyeing liquid 138, so that convenience of operation is improved; preferably, the floating member 102 adopts a hollow thin-wall cylindrical structure, is light in weight, is horizontally arranged in the axial direction and is vertically arranged in the left-right direction, and the dip dyeing liquid 138 can generate water waves 140 with the same size at all positions in the axial direction of the floating member 102 in the lifting process, so that the dyeing uniformity of all positions of the fabric 108 is improved, and the dip dyeing efficiency is improved; because the float 102 adopts a hollow thin-wall structure, the weight of the float 102 is lighter, and the first pull rope 104 is assisted to pull the float 102 to quickly rise by means of elasticity so as to generate larger water waves 140.

In some exemplary implementations of the present embodiment, a first fixed pulley 114 is connected to the bottom of the dip tank 100, one end of the second pull rope 106 is connected to the float 102 after passing around the first fixed pulley 114, and the other end of the second pull rope 106 is led to above the cover plate 112.

Preferably, the first pull rope 104 is in a vertical state at the end connected with the floating member 102, and the second pull rope 106 is in a vertical state at the end connected with the floating member 102, so that the floating member 102 is kept on a vertical line in the center of the dip tank 100, and the floating member has the effects of guiding and centering floating.

In some exemplary embodiments of the present embodiment, a through hole is formed in the cover 112 for the second pull rope 106 to pass through, and a stopper 116 is connected to the second pull rope 106, where the stopper 116 is located above the cover 112.

With the above-described exemplary embodiment of the present embodiment, after the second pull cord 106 is released, the first pull cord 104 pulls the float 102 upward by virtue of the elasticity until the stopper 116 abuts the cover plate 112, at which time the first pull cord 104 is still in a stretched state, helping to maintain the first pull cord 104 with sufficient tension, and with each release of the second pull cord 106, a sufficiently large pull force can rapidly respond to and move upward to pull the float 102 out of the bath 138.

In some exemplary embodiments of the present embodiment, a bracket 118 is disposed above the cover 112, a second fixed pulley 120 is connected to the bracket 118, one end of the second pull rope 106 away from the floating member 102 bypasses the second fixed pulley 120 and is connected to a pull ring 142, and the stopper 116 is located between the cover 112 and the second fixed pulley 120.

In some exemplary implementations of the present embodiment, a weight 122 is also included, the weight 122 being adapted to be fixedly coupled to the underside of the fabric 108 that is hung on the hanger bar 110.

Through the above-mentioned exemplary embodiment of the present embodiment, the balancing weight 122 helps to straighten the fabric 108, so that a certain tension degree can be maintained when the fabric 108 receives the impact and extrusion of the water wave 140, so that the dip dyeing liquid 138 can penetrate the fabric 108 to a greater extent, and helps to avoid the fabric 108 from folding to affect the dip dyeing effect (at the same time, the excessive folding or bending degree can cause the excessive differences of hydraulic pressure, impact and penetration on the same side of the fabric 108), and also helps to avoid the fabric 108 from generating folds.

In some exemplary implementations of the present embodiment, a magnet 124 is fixedly connected to the bottom of the dip tank 100, the weight 122 is made of magnetic metal, and the magnet 124 is located directly below the weight 122 and is disposed close to the weight 122.

Through the above-described exemplary implementation of the present embodiment, the magnet 124 can generate a magnetic attraction force on the weight 122 to straighten the fabric 108, and also help to position the weight 122, for example, after the weight 122 deviates from the magnet 124 under the action of the water wave 140, the attraction force of the magnet 124 can gradually reset the weight 122.

In some exemplary embodiments of the present embodiment, the left and right sides of each hanging bar 110 are respectively provided with a mesh plate 126, the mesh plate 126 is perpendicular to the length direction of the dip tank 100, the lower end of the mesh plate 126 is fixedly connected with the bottom of the dip tank 100, and the upper end of the mesh plate 126 is higher than the central axis of the hanging bar 110.

Through the above-described exemplary implementation of this embodiment, the mesh plate 126 can support the fabric 108, so as to avoid the fabric 108 from being impacted by the water wave 140, excessively bent or inclined after being extruded, and even separated from the hanging rod 110, and when the fabric 108 is extruded to be abutted against the mesh plate 126, the fabric 108 does not move along with the water wave 140 any more, which helps to increase the maximum hydraulic pressure and impact of the water wave 140 on the fabric 108.

As shown in fig. 6 and 7, in some exemplary implementations of the present embodiment, the cover 112, the servo motor 128, the bracket 118, the reel 130, the first fixed pulley 114, and the third fixed pulley 132 are further included; the cover plate 112 is covered on the top of the dip dyeing pond 100, the servo motor 128 and the bracket 118 are respectively fixedly connected with the cover plate 112 and arranged above the cover plate 112, the central shaft of the reel 130 is rotationally connected with the bracket 118, and the output shaft of the servo motor 128 is in transmission connection with the central shaft of the reel 130; the first fixed pulley 114 and the third fixed pulley 132 are respectively connected with the bottom of the dip tank 100, one end of the first pull rope 104 passes through the cover plate 112 to be connected with the upper end of the floating piece 102, and the other end of the first pull rope 104 is wound on the reel 130; one end of the second pull rope 106 passes through the cover plate 112 and sequentially bypasses the third fixed pulley 132 and the first fixed pulley 114 to be connected with the lower end of the floating piece 102, and the other end of the second pull rope 106 is wound on the reel 130; the first pull cord 104 is wound around the spool 130 in a direction opposite to the direction in which the second pull cord 106 is wound around the spool 130.

With the above-described exemplary implementation of the present embodiment, the servo motor 128 reciprocates in a forward direction and in a reverse direction, and the first pull rope 104 and the second pull rope 106 pull the float member 102 to reciprocate up and down, so as to automatically excite and generate the water wave 140.

In some exemplary implementations of the present embodiment, further comprising a controller 134, an infrared distance sensor 136; the servo motor 128 and the infrared distance sensor 136 are respectively connected with the controller 134, the infrared distance sensor 136 is fixed on the lower surface of the floating member 102, the detection direction of the infrared distance sensor 136 is vertical downward, the infrared distance sensor 136 is used for detecting the vertical distance between the lower surface of the floating member 102 and the liquid level of the immersion liquid 138, the detection result is transmitted to the controller 134, and the controller 134 controls the servo motor 128 to work according to the detection result.

With the above exemplary embodiment of the present embodiment, when the infrared distance sensor 136 detects that the distance gradually increases, the controller 134 controls the servo motor 128 to rotate in one direction, drives the float 102 to move downward, provides a power input to the water wave 140, rapidly drives the float 102 to rise and separate from the immersion liquid 138 when the float 102 moves to a preset lowest position (for example, each time the float 102 is driven to move downward by 1 meter), and then detects the distance again, and circulates the process, and when the detected maximum distance is greater than a preset value (for example, based on the trough depth, the preset trough minimum depth is 60 cm, which is taken as the preset value), the controller 134 controls the servo motor 128 to operate, otherwise controls the servo motor 128 to stop operating, so that the intermittent driving of the float 102 to reciprocate is realized, and the water wave 140 keeps a sufficient amplitude state to propagate.

The terms "up, down, left, and right" refer to the directions of view in the drawings, as indicated by directional arrows in fig. 1. The water wave 140 does not represent a wave generated by water alone, but should be understood as a wave generated by liquid.

The embodiments of the present application have been described above, the foregoing description is exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A fabric dyeing apparatus comprising a dip dyeing tank (100), characterized in that,

the dyeing device comprises a dip dyeing pond (100), and is characterized by further comprising a floating piece (102), a first pull rope (104) and a second pull rope (106), wherein the floating piece (102) is positioned in the dip dyeing pond (100), one end of the first pull rope (104) is connected with the upper end of the floating piece (102) and is used for pulling the floating piece (102) upwards, and one end of the second pull rope (106) is connected with the lower end of the floating piece (102) and is used for pulling the floating piece (102) downwards;

the dyeing machine further comprises a plurality of hanging rods (110) for hanging the fabric (108), wherein each hanging rod (110) is detachably connected with the dip dyeing tank (100), the dip dyeing tank (100) is of a rectangular groove structure, the length direction of the dip dyeing tank (100) is arranged along the left-right direction, each hanging rod (110) is arranged along the length direction of the dip dyeing tank (100), and each hanging rod (110) is perpendicular to the length direction of the dip dyeing tank (100);

the hanging rods (110) are symmetrically arranged left and right by taking the center of the dip dyeing tank (100) as a symmetry point, and the floating piece (102) is positioned on a vertical line where the center of the dip dyeing tank (100) is positioned;

when the floating piece (102) is immersed into the dip dyeing liquid (138) in the dip dyeing tank (100), the liquid level of the dip dyeing liquid (138) is higher than that of the hanging rod (110), the floating piece (102) moves upwards to be separated from the dip dyeing liquid (138) to enable the dip dyeing liquid (138) to generate water waves (140) in the left-right direction, the wave peaks of the water waves (140) are higher than that of the hanging rod (110), and the wave troughs of the water waves (140) are lower than the lower edges of the fabrics (108) hung on the hanging rod (110).

2. The fabric dyeing apparatus according to claim 1, characterized in that a cover plate (112) is provided at the top of the dip tank (100), the upper end of the first pull rope (104) is connected to the cover plate (112), the lower end of the first pull rope (104) is connected to the upper end of the floating member (102), the first pull rope (104) has elasticity, and the first pull rope (104) is in a pulled rope state.

3. The fabric dyeing apparatus according to claim 2, characterized in that the bottom of the dip tank (100) is connected with a first fixed pulley (114), one end of the second pull rope (106) is connected with the floating member (102) after bypassing the first fixed pulley (114), and the other end of the second pull rope (106) is led to the upper side of the cover plate (112).

4. A fabric dyeing apparatus according to claim 3, characterized in that the cover plate (112) is provided with a through hole for the second pull rope (106) to pass through, the second pull rope (106) is connected with a limiting block (116), and the limiting block (116) is located above the cover plate (112).

5. The fabric dyeing apparatus according to claim 4, wherein a bracket (118) is arranged above the cover plate (112), a second fixed pulley (120) is connected to the bracket (118), one end of the second pull rope (106) away from the floating member (102) bypasses the second fixed pulley (120) and then is connected with a pull ring (142), and the limiting block (116) is located between the cover plate (112) and the second fixed pulley (120).

6. The fabric dyeing apparatus according to claim 1, characterized in that it further comprises a balancing weight (122), said balancing weight (122) being adapted to be fixedly connected to the lower edge of said fabric (108) hanging on said hanging bar (110).

7. The fabric dyeing apparatus according to claim 6, characterized in that the bottom of the dip dyeing tank (100) is fixedly connected with a magnet (124), the balancing weight (122) is made of magnetic metal, and the magnet (124) is located under the balancing weight (122) and is arranged close to the balancing weight (122).

8. The fabric dyeing apparatus according to claim 1, wherein a mesh plate (126) is provided at both left and right sides of each of the hanging bars (110), the mesh plate (126) is perpendicular to the length direction of the dip tank (100), the lower end of the mesh plate (126) is fixedly connected with the bottom of the dip tank (100), and the upper end of the mesh plate (126) is higher than the central axis of the hanging bar (110).

9. The fabric dyeing apparatus according to claim 1, further comprising a cover plate (112), a servo motor (128), a bracket (118), a reel (130), a first fixed pulley (114), a third fixed pulley (132);

the cover plate (112) is arranged at the top of the dip dyeing tank (100) in a covering mode, the servo motor (128) and the support (118) are respectively fixedly connected with the cover plate (112) and are arranged above the cover plate (112), the central shaft of the reel (130) is rotationally connected with the support (118), and the output shaft of the servo motor (128) is in transmission connection with the central shaft of the reel (130);

the first fixed pulley (114) and the third fixed pulley (132) are respectively connected with the bottom of the dip dyeing tank (100), one end of the first pull rope (104) penetrates through the cover plate (112) to be connected with the upper end of the floating piece (102), and the other end of the first pull rope (104) is wound on the reel (130);

one end of the second stay cord (106) passes through the cover plate (112) and sequentially bypasses the third fixed pulley (132) and the first fixed pulley (114) to be connected with the lower end of the floating piece (102), and the other end of the second stay cord (106) is wound on the reel (130);

the first pull cord (104) is wound on the spool (130) in a direction opposite to the second pull cord (106) is wound on the spool (130).

10. The fabric dyeing apparatus according to claim 9, further comprising a controller (134), an infrared distance sensor (136);

the servo motor (128) and the infrared distance sensor (136) are respectively connected with the controller (134), the infrared distance sensor (136) is fixed on the lower surface of the floating member (102), the detection direction of the infrared distance sensor (136) is vertical downwards, the infrared distance sensor (136) is used for detecting the vertical distance between the lower surface of the floating member (102) and the liquid level of the dye dipping liquid (138), the detection result is transmitted to the controller (134), and the controller (134) controls the servo motor (128) to work according to the detection result.