CN211594604U

CN211594604U - Yarn section dyeing and coloring device

Info

Publication number: CN211594604U
Application number: CN201922295278.7U
Authority: CN
Inventors: 钟腾波
Original assignee: Guangzhou Taixinsheng Machinery Co ltd
Current assignee: Guangzhou Taixinsheng Machinery Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-09-29
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a yarn segment dyeing and coloring device, which comprises a bracket, a height adjusting mechanism and a plurality of dyeing mechanisms, wherein the height adjusting mechanism and the plurality of dyeing mechanisms are arranged on the bracket in sequence along the conveying direction of yarns; each group of dyeing mechanism comprises a dyeing groove, a line pressing component, a first dyeing roller and a second dyeing roller, wherein the second dyeing roller is locally soaked in the dyeing groove and directionally rotates, the roller surface of the first dyeing roller is attached to and contacted with the roller surface of the second dyeing roller, the first dyeing roller synchronously and reversely rotates along with the second dyeing roller, the line pressing component comprises a line pressing unit, the line pressing unit is arranged above the first dyeing roller and can lift and move between an upper lifting position and a lower pressing position, when the line pressing unit is positioned at the upper lifting position, a gap for a yarn to pass through is formed between the line pressing unit and the first dyeing roller, and when the line pressing unit is positioned at the lower pressing position, the line pressing unit downwards presses the yarn passing through the upper part of the first dyeing roller to the roller surface of the first dyeing roller and synchronously and reversely rotates along with the first dyeing roller.

Description

Yarn section dyeing and coloring device

Technical Field

The utility model belongs to the technical field of yarn dyeing equipment technique and specifically relates to a yarn section dyes device of coloring.

Background

The space-dyed yarns with different colors on different sections of one textile yarn are also called colored knot yarns, are one type of fancy yarns, are widely applied, can be used for weaving fabrics with colorful and fashionable color patterns, such as knitting, yarn-dyed fabrics and the like, can avoid or reduce the problem that a plurality of yarns with different colors are needed in weaving to weave patterns, and are beneficial to solving the production problem of certain pattern patterns with difficulty in weaving. The current production methods of space dyeing yarns mainly comprise two methods: the first is a color spinning process, that is, chemical or artificial fibers are spun separately or mixed with other color fibers after being dyed in a fiber manufacturing stage, but the process cannot realize space dyeing of natural fiber yarns such as cotton, hemp, silk, wool and the like; the second is skein dyeing process, namely, the yarn dyed with ground color or without ground color is made into skein, and under the static state of skein, the dye solutions with different colors are respectively sprayed downwards to different sections of the yarn and absorbed by a vacuum pump at the lower part.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a space dyeing is efficient, of high quality, and the yarn line segment that the variety of dyeing is high dyes the device of coloring.

In order to achieve the above purpose, the utility model provides a scheme does: a yarn segment dyeing and coloring device is arranged between a yarn feeder and a yarn winder and used for carrying out sectional dyeing on yarns, and comprises a bracket, a height adjusting mechanism and a plurality of groups of dyeing mechanisms, wherein the height adjusting mechanism and the plurality of groups of dyeing mechanisms are sequentially arranged on the bracket along the conveying direction of the yarns; the height adjusting mechanism is used for limiting the feeding height of the yarns entering the dyeing mechanisms; each dyeing mechanism comprises a dyeing groove, a line pressing component, a first dye roller and a second dye roller which are arranged up and down, wherein the dyeing groove is communicated with a preset dyeing box through a pipeline to form a dye circulation loop, the second dye roller is locally soaked in the dyeing groove and is driven by a preset dye driving unit to rotate directionally, the roller surface of the first dye roller is attached to and contacted with the roller surface of the second dye roller, the first dye roller synchronously rotates along with the second dye roller in a reverse direction, the line pressing component comprises a line pressing unit and a lifting driving mechanism, the line pressing unit is arranged above the first dye roller and can move up and down between a lifting position and a pressing position under the driving of the lifting driving mechanism, when the line pressing unit is at the lifting position, a gap for a yarn to pass through is arranged between the line pressing unit and the first dye roller, when the yarn pressing unit is located at a pressing position, the yarn passing through the upper portion of the first dye roller is pressed down to the roller surface of the first dye roller by the yarn pressing unit and rotates in the opposite direction along with the first dye roller.

Furthermore, the line pressing unit is a pressing roller, and when the pressing roller is located at a pressing position, the roller surface of the pressing roller is in contact with the roller surface of the first dye roller in an attached mode.

Further, the line pressing unit is a pressing plate, when the pressing plate is in a pressing position, the pressing plate rotates around one side edge of the pressing plate, and a rotating path of the other side edge of the pressing plate and the roller surface of the first dye roller are provided with a superposition part, so that the other side edge of the pressing plate is intermittently attached to and contacted with the roller surface of the first dye roller.

Furthermore, a plurality of pairs of supporting rails distributed along the conveying direction of the yarns are formed on the bracket, and the plurality of pairs of supporting rails are respectively configured with the plurality of groups of dyeing mechanisms one by one; two support rails in each pair of support rails extend along the vertical direction and are respectively and oppositely arranged at two sides of the conveying direction of the yarn, a first dye roller and a second dye roller in a corresponding group of dyeing mechanisms are respectively arranged between the two opposite support rails and are respectively provided with a first end part and a second end part which are respectively and rotatably connected with the two support rails, meanwhile, the first end part of the first dye roller penetrates through the corresponding support rails and is fixedly sleeved with a first transmission gear on the penetrating part, the first end part of the second dye roller penetrates through the corresponding support rails and is fixedly sleeved with a second transmission gear and a transmission belt wheel on the penetrating part, the first transmission gear and the second transmission gear are mutually meshed, the transmission belt wheel is in transmission connection with a dye driving unit through a preset transmission belt so as to drive the transmission belt wheel to rotate through the dye driving unit, a line pressing unit in the corresponding group of dyeing mechanisms is arranged between the two opposite support rails and is provided with a first end part and a second end part, the first end and the second end of the line pressing unit are respectively connected to the two support rails in a rotating mode and can move up and down along the two support rails, the first end of the line pressing unit penetrates through the corresponding support rails and penetrates through the first end, a third transmission gear is fixedly sleeved on the first end, and when the line pressing unit is located at a pressing position, the third transmission gear on the first end of the line pressing unit is meshed with the first transmission gear.

Furthermore, each group of the lifting driving mechanisms in the dyeing mechanism comprises two lifting driving components which are respectively configured with the first end part and the second end part of the line pressing unit so as to synchronously drive the two end parts of the line pressing unit to move up and down, wherein each lifting driving component comprises a lever which is arranged above the end part of the line pressing unit and is hinged with the top end of the supporting rail, an air cylinder with a telescopic end hinged with one end of the lever, a buffer rod with a top end hinged with the other end of the lever and a suspender with a top end hinged with the middle section of the lever, the cylinder body of the air cylinder is hinged on the supporting rail, a first buffer spring is sleeved on the rod section of the buffer rod, one end of the first buffer spring is connected with a limit nut fixedly sleeved on the buffer rod, the other end of the first buffer spring is connected with a limit boss formed on the supporting rail, the lever is driven to swing up and down through the telescopic action of the cylinder so as to drive the suspender to move up and down, and further drive the end part of the line pressing unit to move up and down.

Furthermore, in each group of dyeing mechanism, a second buffer spring is connected between the first end and the second end of the line pressing unit, which correspond to the first end and the second end of the first dye roller respectively.

Further, height adjustment mechanism includes that two are vertical setting and locate the direction of delivery both sides of yarn relatively backup pad, connect material pole, trough pipe and ejection of compact pivot, wherein, connect material pole, trough pipe and ejection of compact pivot all transversely set up and set up between two backup pads along the direction of delivery of yarn in proper order, wherein, connect the height of material pole and trough pipe unanimous, and the height that highly is less than a little of material pole and trough pipe of ejection of compact pivot, it has a plurality of annular grooves that are used for the bearing yarn to distribute along the equidistance of the extending direction of trough pipe on the pipe surface of trough pipe, ejection of compact pivot rotationally sets up between two backup pads.

Furthermore, a circulating pump for driving the dye to flow is arranged on a pipeline between the feeding end of the dye trough and the discharging end of the dye box, and a valve for controlling the flow of the dye is arranged on a pipeline between the discharging end of the dye trough and the feeding end of the dye box.

Compared with the prior art, the utility model has the advantages that the dyeing length and the dyeing pattern of the yarn can be accurately controlled by controlling the lifting movement of the line pressing units of the plurality of dyeing mechanisms, the degree of automation is high, the yarn dyeing efficiency and quality are improved, and the shapes adopted by the line pressing units can be diversified, so that the dyeing patterns of the yarn are diversified; meanwhile, the first dyeing roller which plays a role in dye transfer is additionally arranged between the yarn and the second dyeing roller, so that the dye stained on the yarn can be more uniform.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic structural diagram of the height adjusting mechanism of the present invention.

Fig. 3 is the structure schematic diagram of the dyeing mechanism of the utility model discloses line ball unit is the compression roller.

Fig. 4 is a partial enlarged view of the position a of the present invention.

Fig. 5 is a schematic structural view of the dyeing mechanism with the pressing plate as the line pressing unit of the present invention.

The dyeing machine comprises a support 1, a support rail 11, a height adjusting mechanism 2, a receiving rod 21, a groove pipe 22, a discharging rotating shaft 23, a dyeing mechanism 3, a dyeing groove 31, a first dyeing roller 32, a second dyeing roller 33, a line pressing unit 34, a lever 35, a cylinder 36, a buffer rod 37, a first buffer spring 38, a hanging rod 39, a first transmission gear 4, a second transmission gear 5, a third transmission gear 6, a second buffer spring 7 and a dyeing box 8.

Detailed Description

The invention will be further described with reference to the following specific embodiments:

referring to fig. 1 to 5, the present embodiment is a yarn segment dyeing and coloring device, which is disposed between a yarn feeder and a yarn winder for sectional dyeing of yarn. The yarn segment dyeing and painting device comprises a support 1, a height adjusting mechanism 2 and four groups of dyeing mechanisms 3, wherein the height adjusting mechanism 2 and the four groups of dyeing mechanisms are sequentially arranged on the support 1 along the conveying direction of yarns. The yarn feeder is used for supplying yarn material. Yarns led out from the yarn feeder pass through the height adjusting mechanism 2, sequentially pass through the four dyeing mechanisms 3 for sectional dyeing, and finally enter the yarn winding machine for winding.

In the present embodiment, the height adjustment mechanism 2 is used to define the feed height of the yarn into the plurality of sets of dyeing mechanisms 3. Specifically, height adjustment mechanism 2 includes that two are vertical setting and locate the backup pad of the direction of delivery both sides of yarn relatively, connect material pole 21, grooved tube 22 and ejection of compact pivot 23, wherein, connect material pole 21, grooved tube 22 and ejection of compact pivot 23 all transversely to set up and set up between two backup pads along the direction of delivery of yarn in proper order. The two ends of the material receiving rod 21 and the two ends of the groove pipe 22 are respectively fixed on the two supporting plates in a welding or riveting mode and the like, and the horizontal heights of the two supporting plates are consistent. Two ends of the discharging rotating shaft 23 are respectively connected to the two supporting plates in a rotating manner and the height of the discharging rotating shaft is slightly lower than the height of the material receiving rod 21 and the height of the groove pipe 22. A plurality of annular grooves for supporting yarns are distributed on the tube surface of the groove tube 22 at equal intervals along the extending direction of the groove tube 22. The yarn is connected from receiving rod 21 and is seen off from ejection of compact pivot 23 behind trough pipe 22, through receiving rod 21, trough pipe 22 and ejection of compact pivot 23 supporting effect to the yarn, can guarantee the height when yarn gets into four groups dyeing mechanism 3, can produce the tensile force to the yarn when follow-up yarn rolling machine rolling simultaneously for the yarn can not appear flagging the condition through four groups dyeing mechanism 3's in-process.

In this embodiment, each dyeing mechanism 3 includes a dye trough 31, a line pressing assembly, and a first dye roller 32 and a second dye roller 33 which are arranged up and down, wherein the dye trough 31 is communicated with a preset dye box 8 (the dye box 8 and the dye trough 31 are configured one by one) through a pipeline and forms a dye circulation loop. The dye stored in the dye tank 8 is transported to the dye tank 31 through a pipe. The second dye roller 33 is partially immersed in the dye tank 31 and is driven by a preset dye driving unit to rotate directionally, and the roller surface of the second dye roller 33 can be stained with the dye in the dye tank 31 during rotation. The roll surface of the first dye roll 32 is in contact with the roll surface of the second dye roll 33, and the first dye roll 32 rotates synchronously and reversely along with the second dye roll 33. Since the roll surface of the first dye roll 32 is in contact with the roll surface of the second dye roll 33, the roll surface of the first dye roll 32 can pick up the dye on the roll surface of the second dye roll 33 during the synchronous rotation. The thread pressing assembly comprises a thread pressing unit 34 and a lifting driving mechanism, wherein the thread pressing unit 34 is arranged above the first dye roller 32 and can move up and down between an upper lifting position and a lower pressing position under the driving of the lifting driving mechanism. When the yarn pressing unit 34 is in the raised position, a gap for the yarn to pass through is formed between the yarn pressing unit 34 and the first dye roller 32, and at this time, since the yarn does not contact with the roller surface of the first dye roller 32 at all, the yarn does not contaminate the dye on the roller surface of the first dye roller 32 when passing over the first dye roller 32, and the yarn is not dyed. When the yarn pressing unit 34 is at the downward pressing position, the yarn passing through the upper portion of the first dye roller 32 is pressed downward onto the roller surface of the first dye roller 32 by the yarn pressing unit 34 and rotates synchronously and reversely along with the first dye roller 32, and at this time, since the yarn is in close contact with the roller surface of the first dye roller 32, the yarn passing through the roller surface of the first dye roller 32 can be stained with the dye on the roller surface of the first dye roller 32, thereby realizing dyeing. By doing so, by controlling the time point and the time length when the thread pressing unit 34 is in the pressing position in each set of dyeing mechanism 3, the sectional dyeing can be accurately performed on the yarn, and the longer the time length when the thread pressing unit 34 is in the pressing position, the longer the yarn dyeing length. For example, if the line pressing units 34 of the four dyeing mechanisms 3 arranged in sequence from the yarn conveying direction are controlled to press down sequentially and for the same duration, four continuous line segments of different colors (different dyes in the dye tanks 31 of the four dyeing mechanisms 3) are formed on the yarn, and the lengths of the line segments are equal. Next, the first dye roller 32 and the second dye roller 33 are disposed to avoid a situation that the yarn is directly contacted with the second dye roller 33, and a large amount of dye picked up by the second dye roller 33 from the dye tank 31 is directly stained on the yarn, so that the yarn is dyed too deeply.

In the present embodiment, the pressing unit 34 of three of the four dyeing mechanisms 3 is a pressing roller, and the pressing unit 34 of one of the four dyeing mechanisms is a pressing plate. In some embodiments, the line pressing units 34 in all of the dyeing mechanisms 3 may be used as press rollers, and the line pressing units 34 in some of the dyeing mechanisms 3 may be used as press plates. It should be noted that the pressing roller or the pressing plate adopted by the pressing unit 34 can make the yarn dyeing effect different, and the pressing roller or the pressing plate is selected according to the actual yarn processing style requirement. Specifically, if the yarn pressing unit 34 is a pressing roller, when the pressing roller is in the pressing position, the roller surface of the pressing roller is in contact with the roller surface of the first dye roller 32, and the pressing roller synchronously rotates along with the first dye roller 32 in the opposite direction, and at this time, due to the continuous pressing of the pressing roller, the yarn is continuously in contact with the roller surface of the first dye roller 32, so that a continuous long line segment is formed on the yarn. If the yarn pressing unit 34 is a pressing plate, when the pressing plate is in a pressing position, the pressing plate rotates around one side edge of the pressing plate, and the rotating path of the other side edge of the pressing plate and the roller surface of the first dye roller 32 have a superposed part, so that the other side edge of the pressing plate is intermittently attached to and contacted with the roller surface of the first dye roller 32, and at the moment, the roller surface of the first dye roller 32 is contacted once when the pressing plate rotates for every circle, so that the yarn is intermittently attached to and contacted with the roller surface of the first dye roller 32, and a plurality of short line segments with equal intervals can be formed on the yarn. In some embodiments, the line pressing unit 34 may also take other forms, such as a gear shape, etc., according to the requirement.

In this embodiment, four pairs of support rails 11 are formed on the carriage 1 so as to be distributed in the yarn feeding direction. The four pairs of support rails 11 are respectively configured with the four groups of dyeing mechanisms 3 one by one. The two support rails 11 of each pair of support rails 11 extend in the vertical direction and are respectively oppositely arranged on both sides of the yarn conveying direction. For each set of dyeing mechanism 3 and the supporting rails 11 arranged with the same, the first dye roller 32 and the second dye roller 33 in the dyeing mechanism 3 are both arranged between the two opposite supporting rails 11 and both have a first end and a second end which are respectively rotatably connected to the two supporting rails 11. Specifically, the support rail 11 is welded with fixed bearing seats near the bottom end and the middle section. The first end and the second end of the first dyeing roller 32 and the second dyeing roller 33 are respectively connected to the corresponding fixed bearing seats in a rotating way through preset rolling bearings. Further, the first end of the first dye roller 32 penetrates the corresponding support rail 11 and the penetrating part is fixedly sleeved with the first transmission gear 4 through key connection. And the first end part of the second dye roller 33 penetrates through the corresponding support rail 11, and the penetrating part is fixedly sleeved with the second transmission gear 5 and the transmission belt wheel through key connection. The first transmission gear 4 and the second transmission gear 5 are meshed with each other. The driving belt wheel is in transmission connection with the dye driving unit through a preset driving belt so as to drive the driving belt wheel to rotate through the dye driving unit. Specifically, the dye driving unit is a driving motor; the output shaft of the driving motor is sleeved with a driving wheel; the action wheel passes through the drive belt looks drive connection with driving pulley, is rotated by driving motor drive action wheel and drives driving pulley and rotate, drives second dye roller 33 then and rotates, then because the meshing of first drive gear 4 and second drive gear 5 for first dye roller 32 is along with the synchronous antiport of second dye roller 33. The thread pressing unit 34 in the dyeing mechanism 3 is provided between the two opposing support rails 11 and has a first end and a second end. The first end and the second end of the wire pressing unit 34 are respectively rotatably connected to the two support rails 11 and can move up and down along the two support rails 11. Specifically, a movable bearing seat is arranged at the position of the support rail 11 close to the top end; the movable bearing seat can slide up and down along the support rail 11; the first end and the second end of the wire pressing unit 34 are respectively connected to the corresponding movable bearing seats in a rotating manner through a preset rolling bearing and move synchronously with the movable bearing seats. The first end of the line pressing unit 34 penetrates through the corresponding support rail 11, and the penetrating part is fixedly sleeved with the third transmission gear 6, and when the line pressing unit 34 is at the pressing position, the third transmission gear 6 on the first end of the line pressing unit 34 is meshed with the first transmission gear 4. Since the third transmission gear 6 is meshed with the first transmission gear 4, the line pressing unit 34 synchronously rotates reversely along with the first dye roller 32.

In the present embodiment, the lifting drive mechanism in each set of dyeing mechanisms 3 includes two lifting drive assemblies. The two lifting driving assemblies are respectively configured with the first end part and the second end part of the line pressing unit 34 to synchronously drive the two end parts of the line pressing unit 34 to lift and move, wherein each lifting driving assembly comprises a lever 35 which is arranged above the end part of the line pressing unit 34 and hinged to the top end of the supporting rail 11, a cylinder 36 with a telescopic end hinged to one end of the lever 35, a buffer rod 37 with a top end hinged to the other end of the lever 35 and a suspender 39 with a top end hinged to the middle section of the lever 35. The cylinder body of the air cylinder 36 is hinged on the support rail 11. The rod section of the buffer rod 37 near the end is sleeved with a first buffer spring 38. One end of the first buffer spring 38 is connected to a limit nut fixedly sleeved on the end of the buffer rod 37, and the other end is connected to a limit boss formed on the support rail 11. Specifically, a through hole is formed on a limiting boss on the support rail 11; the rod section of the buffer rod 37 near the end penetrates the through hole; and the other end of the first buffer spring 38 is connected to the bottom surface of the limit boss. The first buffer spring 38 plays a role of buffering the swing action of the lever 35, and improves the reliability of the lifting driving assembly. The end of the wire pressing unit 34 is pivotally connected to the bottom end of the suspension rod 39. Specifically, the bottom end of the suspender 39 is fixedly connected with the movable bearing seat; the end part of the line pressing unit 34 is rotatably connected to the movable bearing seat through a rolling bearing; the lever 35 is driven to swing up and down by the telescopic action of the cylinder 36, so as to drive the suspender 39 to move up and down, further drive the end part of the line pressing unit 34 to move up and down, and finally realize the lifting movement of the line pressing unit 34 between a lifting position and a pressing position.

In the present embodiment, in each dyeing mechanism 3, a second buffer spring 7 is connected between the first end and the second end of the line pressing unit 34 and the first end and the second end of the first dye roller 32, respectively. Specifically, both ends of the second buffer spring 7 are respectively connected to a movable bearing connected to the line pressing unit 34 and a fixed bearing connected to the first dye roller 32.

In this embodiment, a circulation pump for driving the flow of the dye is provided on the pipe between the feed end of the dye vat 31 and the discharge end of the dye tank 8. And a valve for controlling the dye flow is arranged on a pipeline between the discharge end of the dye tank 31 and the feed end of the dye box 8. During operation, the circulating pump supplements the dyestuff in the dyestuff case 8 to dyestuff groove 31, and the steerable dyestuff in the dyestuff groove 31 of aperture through control valve flows back to the flow of dyestuff case 8, both steerable dyestuff liquid level in the dyestuff groove 31. When the yarn segment dyeing and coloring device is shut down, the dye in the dye groove 31 can completely flow back to the dye box 8, so that the dye groove 31 is convenient to clean.

In this embodiment, the yarn segment dyeing and painting device is provided with a programmable controller. The cylinders 36 of the dyeing mechanisms 3 of each group are provided with electromagnetic valves. The signal output end of the programmable controller is electrically connected with the signal input end of each electromagnetic valve, so that the programmable controller controls the air cylinders 36 of each group of dyeing mechanisms 3 according to a preset program to realize different dyeing requirements. It should be noted that, as a conventional technical means for controlling an actuator such as the air cylinder 36 according to a preset program by a programmable controller, reference is made to patent document No. CN 103978368B.

In addition, it should be noted that the names of the parts and the like of the embodiments described in the present specification may be different, and all the equivalent or simple changes made according to the structure, the features and the principle of the present invention are included in the protection scope of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a yarn section dyes device of coloring, locates between yarn feeder and the yarn rolling machine in order to be used for carrying out the segmentation dyeing to the yarn, its characterized in that: comprises a bracket (1), a height adjusting mechanism (2) and a plurality of groups of dyeing mechanisms (3) which are arranged on the bracket (1) in sequence along the conveying direction of yarns; the height adjusting mechanism (2) is used for limiting the feeding height of the yarns entering the dyeing mechanisms (3); each dyeing mechanism (3) comprises a dyeing groove (31), a line pressing assembly, a first dyeing roller (32) and a second dyeing roller (33), wherein the first dyeing roller (32) and the second dyeing roller (33) are arranged up and down, the dyeing groove (31) is communicated with a preset dyeing box (8) through a pipeline to form a dye circulation loop, the second dyeing roller (33) is locally soaked in the dyeing groove (31) and directionally rotates under the drive of a preset dye driving unit, the roller surface of the first dyeing roller (32) is attached to and contacted with the roller surface of the second dyeing roller (33), the first dyeing roller (32) synchronously and reversely rotates along with the second dyeing roller (33), the line pressing assembly comprises a line pressing unit (34) and a lifting driving mechanism, the line pressing unit (34) is arranged above the first dyeing roller (32) and can be lifted up and moved down between a lifting position and a pressing position under the drive of the lifting driving mechanism, when the yarn pressing unit (34) is located at the lifting position, a gap for a yarn to pass through is formed between the yarn pressing unit (34) and the first dye roller (32), and when the yarn pressing unit (34) is located at the pressing position, the yarn passing through the upper portion of the first dye roller (32) is pressed down onto the roller surface of the first dye roller (32) by the yarn pressing unit (34) and rotates synchronously and reversely along with the first dye roller (32).

2. The yarn segment dyeing and coloring device according to claim 1, characterized in that: the line pressing unit (34) is a pressing roller, and when the pressing roller is located at a pressing position, the roller surface of the pressing roller is in contact with the roller surface of the first dye roller (32) in an attached mode.

3. The yarn segment dyeing and coloring device according to claim 1, characterized in that: the line pressing unit (34) is a pressing plate, when the pressing plate is in a pressing position, the pressing plate rotates around one side edge of the pressing plate, and the rotating path of the other side edge of the pressing plate and the roller surface of the first dye roller (32) have a superposition part, so that the other side edge of the pressing plate is intermittently attached to and contacted with the roller surface of the first dye roller (32).

4. The yarn segment dyeing and coloring device according to claim 1, characterized in that: a plurality of pairs of supporting rails (11) distributed along the conveying direction of the yarns are formed on the bracket (1), and the plurality of pairs of supporting rails (11) are respectively configured with the plurality of groups of dyeing mechanisms (3) one by one; two support rails (11) in each pair of support rails (11) extend along the vertical direction and are respectively and oppositely arranged on two sides of the conveying direction of the yarns, a first dye roller (32) and a second dye roller (33) in a corresponding group of dyeing mechanisms (3) are respectively arranged between the two opposite support rails (11) and respectively provided with a first end part and a second end part which are respectively and rotatably connected to the two support rails (11), meanwhile, the first end part of the first dye roller (32) penetrates through the corresponding support rails (11) and is fixedly sleeved with a first transmission gear (4) in the penetrating part, the first end part of the second dye roller (33) penetrates through the corresponding support rails (11) and is fixedly sleeved with a second transmission gear (5) and a transmission belt wheel, the first transmission gear (4) and the second transmission gear (5) are mutually meshed, the belt wheel is in transmission connection with a dye drive unit through a preset transmission belt so as to rotate through the dye drive unit, line ball unit (34) in a set of dyeing mechanism (3) that corresponds are located between two relative support rails (11) and have first end and second end, the first end and the second end of line ball unit (34) rotate respectively to be connected on two support rails (11) and can be followed two support rails (11) and make the lift removal, the first end of line ball unit (34) runs through corresponding support rail (11) and the fixed third drive gear (6) of having cup jointed on the through part, when line ball unit (34) is in and pushes down the position, third drive gear (6) on line ball unit (34) first end mesh with first drive gear (4).

5. The yarn segment dyeing and coloring device according to claim 4, characterized in that: the lifting driving mechanism in each dyeing mechanism (3) comprises two lifting driving components, the two lifting driving components are respectively configured with the first end part and the second end part of the line pressing unit (34) to synchronously drive the two end parts of the line pressing unit (34) to lift and move, wherein each lifting driving component comprises a lever (35) which is arranged above the end part of the line pressing unit (34) and hinged to the top end of the supporting rail (11), an air cylinder (36) with a telescopic end hinged to one end of the lever (35), a buffer rod (37) with a top end hinged to the other end of the lever (35) and a suspender (39) with a top end hinged to the middle section of the lever (35), the cylinder body of the air cylinder (36) is hinged to the supporting rail (11), a first buffer spring (38) is sleeved on the rod section of the buffer rod (37), one end of the first buffer spring (38) is connected with a limit nut fixedly sleeved on the buffer rod (37), the other end of the wire pressing unit is connected with a limiting boss on the forming and supporting rail (11), the end part of the wire pressing unit (34) is rotatably connected to the bottom end of the suspender (39), and the telescopic action of the air cylinder (36) drives the lever (35) to swing up and down so as to drive the suspender (39) to move up and down and further drive the end part of the wire pressing unit (34) to move up and down.

6. The yarn segment dyeing and coloring device according to claim 5, characterized in that: in each group of dyeing mechanisms (3), a second buffer spring (7) is connected between the first end part and the second end part of the line pressing unit (34) and the first end part and the second end part of the first dyeing roller (32) respectively.

7. The yarn segment dyeing and coloring device according to claim 1, characterized in that: height adjusting mechanism (2) are vertical setting and locate the backup pad of the direction of delivery both sides of yarn relatively including two, connect material pole (21), tub (22) and ejection of compact pivot (23), wherein, connect material pole (21), tub (22) and ejection of compact pivot (23) and all transversely set up and set up between two backup pads along the direction of delivery of yarn in proper order, wherein, connect the height of material pole (21) and tub (22) to be unanimous, and the height that highly is less than a little and connects material pole (21) and tub (22) of ejection of compact pivot (23), it has a plurality of annular grooves that are used for bearing the yarn to have along the equal interval distribution of the extending direction of tub (22) on the pipe surface of tub (22), ejection of compact pivot (23) rotationally set up between two backup pads.

8. The yarn segment dyeing and coloring device according to claim 1, characterized in that: a circulating pump for driving dyes to flow is arranged on a pipeline between the feeding end of the dye trough (31) and the discharging end of the dye box (8), and a valve for controlling the dye flow is arranged on a pipeline between the discharging end of the dye trough (31) and the feeding end of the dye box (8).