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CN-122013471-A - Water-saving dyeing device and process for polyester fabric

CN122013471ACN 122013471 ACN122013471 ACN 122013471ACN-122013471-A

Abstract

The invention discloses a terylene fabric water-saving printing and dyeing device and a process, which particularly relate to the technical field of fabric dyeing, and comprise a dyeing tank, a torsion device, a pressure regulating part and an overflow pipe, wherein the torsion device is movably arranged in the dyeing tank and comprises a protecting piece, a rotating shell and a conveying belt, the rotating shell drives the protecting piece to rotate and untwist fabrics, the pressure regulating part is movably arranged in the rotating shell and comprises a piston rod and a movable bulge, when the moving distance of the protecting piece to the central position is increased, the piston rod moves upwards to drive the movable bulge to move outwards and increase the extrusion force with the conveying belt, the overflow pipe is movably arranged above the rotating shell, one side of the overflow pipe is communicated with a liquid outlet pipe through the flow regulating part, the flow regulating part comprises a flow baffle plate, and the fabric is untwisted before entering the overflow pipe through the action of the torsion device, so that the fabric cannot be completely absorbed by the overflow pipe in a torsion state to cause uneven dyeing.

Inventors

  • SONG DONGHAI
  • CHEN DAN

Assignees

  • 浙江华越印染有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (9)

  1. 1. The utility model provides a polyester fabric water conservation printing and dyeing device, includes dyeing tank (1), its characterized in that still includes: the twisting device (9) is movably arranged in the dyeing tank (1) and comprises a protective piece (904), a rotary shell (903) and a conveyor belt (902), and the rotary shell (903) drives the protective piece (904) to rotate and untwist the fabric; The pressure adjusting part (14) is movably arranged in the rotary shell (903) and comprises a piston rod (1404) and a movable protrusion (1406), when the movement distance of the protective piece (904) to the central position is increased, the piston rod (1404) moves upwards to drive the movable protrusion (1406) to move outwards and increase the extrusion force with the conveyor belt (902); The overflow pipe (12) is movably arranged above the rotary shell (903), one side of the overflow pipe (12) is communicated with the liquid outlet pipe (13) through the flow adjusting part (15), the flow adjusting part (15) comprises a flow blocking plate (1502), a piston rod (1404) drives the flow blocking plate (1502) to move upwards and reduce the blocking area of the liquid outlet pipe (13), and the dye liquor amount entering the overflow pipe (12) along the liquid outlet pipe (13) is increased.
  2. 2. The water-saving printing and dyeing device for polyester fabric according to claim 1, wherein the twisting device (9) further comprises: The driving motor (901) is fixedly arranged outside the dyeing tank (1), the output end of the driving motor is movably connected with the conveyor belt (902) through a turntable, and the driving motor (901) drives the rotary shell (903) to rotate through the conveyor belt (902); And a detector (908) fixedly arranged at the bottom of the rotary shell (903) and used for detecting the state when the fabric reaches the inside of the rotary shell (903).
  3. 3. The water-saving printing and dyeing device for polyester fabric according to claim 1, wherein the twisting device (9) further comprises: The mounting cavity (905) is uniformly formed in the side wall of the rotary shell (903); The upper telescopic piece (906) is fixedly arranged in the mounting cavity (905), and the output end of the upper telescopic piece is hinged with the upper end of the protective piece (904) and is used for driving the upper end of the protective piece (904) to move; the lower telescopic piece (907) is fixedly arranged in the mounting cavity (905), and the output end of the lower telescopic piece is hinged with the lower end of the protective piece (904) and is used for driving the lower end of the protective piece (904) to move.
  4. 4. A water-saving printing and dyeing device for polyester fabric according to claim 3, wherein the pressure adjusting part (14) comprises: the movable piston (1401) is fixedly arranged at the output end of the upper telescopic piece (906), and the outer surface of the movable piston (1401) is movably and hermetically connected with the inner wall of the mounting cavity (905) and is used for movably extruding gas in the mounting cavity (905); The fixed piston (1402) is fixedly arranged on one side of the mounting cavity (905) close to the output end of the upper telescopic piece (906), and the inner wall of the fixed piston (1402) is movably and hermetically connected with the outer surface of the upper telescopic piece (906).
  5. 5. The water-saving printing and dyeing device for polyester fabric according to claim 1, wherein the pressure adjusting part (14) further comprises: the sliding cavity (1403) is formed in the rotary shell (903), the top of the sliding cavity (1403) is communicated with the outside, and the bottom of the sliding cavity is communicated with the mounting cavity (905) through a channel; The hydraulic cavity (1405) is arranged in the rotary shell (903) and one side of the hydraulic cavity is communicated with the side wall of the sliding cavity (1403) through a pipeline, and the movable protrusion (1406) is movably connected in the hydraulic cavity (1405).
  6. 6. The water-saving printing and dyeing device for polyester fabric according to claim 1, wherein the flow regulating part (15) further comprises: The movable plate (1501) is movably arranged at the bottom of the overflow pipe (12), and the bottom of the movable plate (1501) is contacted with the top of the piston rod (1404); the butt joint hole (1503) is formed in the flow baffle (1502) and has the same size as the liquid outlet pipe (13), and when the flow baffle (1502) moves, the butt joint hole (1503) is driven to move and the overlapping area of the liquid outlet pipe (13) is changed.
  7. 7. The water-saving dyeing device for polyester fabric according to claim 5, wherein the rotary shell (903) is movably connected inside the dyeing tank (1), the fabric enters the overflow pipe (12) upwards for overflow dyeing after untwisting inside the rotary shell (903), the piston rod (1404) is arranged inside the sliding cavity (1403) in a sealing sliding manner, the moving distance of the protective piece (904) to the central position is increased, and the upward moving distance of the piston rod (1404) is increased.
  8. 8. The water-saving printing and dyeing device for polyester fabric according to claim 6, wherein the conveying belt (902) is movably connected to the outer surface of the rotary shell (903) and is in extrusion contact with the movable protrusion (1406), the rotary shell (903) is driven to rotate by the rotation of the conveying belt (902) through the movable protrusion (1406) and untwists the fabric, the flow blocking plate (1502) is fixedly arranged above one side, close to the liquid outlet pipe (13), of the movable plate (1501), and the piston rod (1404) drives the flow blocking plate (1502) to move upwards through the movable plate (1501) when moving upwards.
  9. 9. A water-saving printing and dyeing process for polyester fabric, which uses the water-saving printing and dyeing device for polyester fabric according to claim 1, and is characterized by comprising the following steps: S1, enabling the fabric to enter the rotary shell (903) upwards to be untwisted, and enabling the fabric to enter the overflow pipe (12) upwards to be overflow dyed after the untwisting is completed; S2, when the torsion degree of the fabric is increased, the movement amount of the protective piece (904) towards the end close to the fabric is increased, the upward movement amount of the piston rod (1404) is increased, the movable protrusion (1406) is moved outwards and increases the pressing force with the conveyor belt (902), the conveyor belt (902) drives the rotary shell (903) to rotate and torque force to be increased, and the piston rod (1404) drives the baffle plate (1502) to move upwards and increase the opening of the liquid outlet pipe (13); S3, when gaps appear in the positions of the fabric joints, the protective piece (904) moves away from the fabric end, the upward movement amount of the piston rod (1404) is reduced, the movable protrusion (1406) moves inwards and breaks away from the pressing force of the conveyor belt (902), the rotary shell (903) does not rotate, and the piston rod (1404) drives the baffle plate (1502) to move downwards and reduce the opening of the liquid outlet pipe (13); and S4, when the fabric breaks, the plurality of protection pieces (904) move to the maximum distance towards the end close to the fabric and clamp the broken position, the piston rod (1404) moves up to the maximum distance and drives the baffle plate (1502) to block the liquid outlet pipe (13), and the transmission belt (902) stops transmitting.

Description

Water-saving dyeing device and process for polyester fabric Technical Field The invention relates to the technical field of fabric dyeing, in particular to a water-saving dyeing device and a water-saving dyeing process for polyester fabric. Background The typical process in the fabric dyeing industry mainly comprises overflow dyeing, gas-liquid shunt dyeing and gas-liquid atomization dyeing processes, wherein a gas-liquid overflow dyeing machine is main flow intermittent dyeing equipment in the textile dyeing field, integrates three technical paths of gas flow conveying, overflow dyeing and jet dyeing, takes low tension, low bath ratio, high-efficiency leveling and energy-saving environment-friendly as core advantages, and is suitable for dyeing processing of easily-deformable fabrics such as needle fabrics, elastic fabrics and chemical fiber blended fabrics. The publication number CN117306149B discloses an overflow dyeing machine with uniform dyeing temperature, which relates to the technical field of dyeing machines and comprises an overflow dyeing machine body and a heat exchanger arranged on the machine body, the dye liquor enters the machine body after being heated by the heat exchanger, the machine body is provided with an overflow pipe, and the high-temperature dye liquor heated by the heat exchanger overflows repeatedly in the overflow pipe. In the scheme, the fabric is easy to twist in the conveying process before entering the overflow pipe, and the fabric cannot fully absorb the dye liquor in the overflow pipe, so that the follow-up overflow dyeing is uneven and the like. The existing fixed protective piece cannot adapt to fabrics with different torsion degrees, and the contact area between the protective piece and the fabrics with different torsion degrees cannot be adjusted adaptively, so that damage to the fabrics and insufficient untwisting effects are easily caused in the untwisting process. When the torsion degree of the fabric is increased, the required torsion force is increased along with the increase, and the belt water environment of the conveyor belt and the rotary shell can cause insufficient compression force of the conveyor belt and the rotary shell to skid, so that the untwisting effect is affected. Fabrics with different torsion degrees have different dye liquor absorption requirements, the opening size of the existing liquid outlet pipe cannot be flexibly adjusted, and uneven dyeing is caused. The edge curling condition is easy to occur in the conveying process of the fabric, the existing device cannot untwist the curling part in a targeted manner, and the untwisting of the curling part is incomplete, so that the dyeing quality is affected. And the joint part of the fabric is easy to generate gaps in the cyclic processing dyeing process, if the dye liquor with larger flow rate washes the joint part in the overflow pipe, the gaps are easy to be enlarged, and when the fabric breaks, the broken part of the fabric falls into the storage pipe again, so that the fabric is knotted in the storage pipe, the broken position cannot be accurately positioned, and the fabric is reworked rapidly. Disclosure of Invention In order to overcome the defects in the prior art, the embodiment of the invention provides a water-saving printing and dyeing device and a process for polyester fabric, which are used for solving the problems in the prior art. In order to achieve the purpose, the invention provides the following technical scheme that the water-saving dyeing device for the polyester fabric comprises a dyeing tank and further comprises: The twisting device is movably arranged in the dyeing tank and comprises a protecting piece, a rotating shell and a conveyor belt, and the rotating shell drives the protecting piece to rotate and untwists the fabric; the pressure adjusting part is movably arranged in the rotary shell and comprises a piston rod and a movable protrusion, when the moving distance of the protective piece to the central position is increased, the piston rod moves upwards to drive the movable protrusion to move outwards and increase the extrusion force with the conveyor belt; the overflow pipe is movably arranged above the rotary shell, one side of the overflow pipe is communicated with a liquid outlet pipe through a flow regulating part, the flow regulating part comprises a flow blocking plate, a piston rod drives the flow blocking plate to move upwards and reduce the blocking area of the liquid outlet pipe, and the dye liquor amount entering the overflow pipe along the liquid outlet pipe is increased. Preferably, the torsion device further includes: the driving motor is fixedly arranged outside the dyeing tank, the output end of the driving motor is movably connected with the conveyor belt through a turntable, and the driving motor drives the rotary shell to rotate through the conveyor belt; And the detector is fixedly arranged at the bottom of the rotary shell and is used for detecti