阅读说明：本技术 一种涤纶印花织物增厚手感的工艺 (Process for thickening handfeel of polyester printed fabric ) 是由 梁良良 武丽娟 于 2020-07-03 设计创作，主要内容包括：本发明涉及织物加工技术领域,具体涉及一种涤纶印花织物增厚手感的工艺,包括坯布处理、印花干燥、梳面水洗和烘脱定型,其中采用的拉伸机包括拉筒、机架和控制器；由于卷绕封装的坯布在重新伸展开后,其卷绕过程中产生的细微褶皱会体现在拉筒上,改变了拉筒之间坯布的实际长度,而破坏了拉筒对坯布恒定的拉伸率状态,进而削弱了后续坯布加工中厚实手感的体现；故此,本发明通过设置在拉筒上的传感器,配合拉筒端部的独立驱动的伺服电机,将坯布在拉筒间的拉伸率变化反馈至控制器中,对拉筒间的转动运行状态进行及时调节,维持对坯布稳定的拉伸作用,从而提升了涤纶印花织物增厚手感工艺的应用效果。(The invention relates to the technical field of fabric processing, in particular to a process for thickening handfeel of printed polyester fabrics, which comprises grey cloth treatment, printing and drying, face combing and washing, and drying and shaping, wherein an adopted stretcher comprises a drawing cylinder, a rack and a controller; after the grey cloth which is wound and packaged is re-stretched, fine wrinkles generated in the winding process can be reflected on the drawing tubes, the actual length of the grey cloth between the drawing tubes is changed, the constant stretching rate state of the drawing tubes on the grey cloth is damaged, and the thick hand feeling in the subsequent processing of the grey cloth is weakened; therefore, the invention feeds back the change of the stretching rate of the grey cloth between the drawing drums to the controller by the sensor arranged on the drawing drum and the servo motor which is matched with the end part of the drawing drum and is independently driven, and adjusts the rotating running state between the drawing drums in time to maintain the stable stretching effect of the grey cloth, thereby improving the application effect of the thickening handfeel process of the polyester printed fabric.)

1. A process for thickening handfeel of a polyester printed fabric is characterized by comprising the following steps:

s1, grey cloth treatment: unfolding the packaged polyester grey cloth, mounting the polyester grey cloth on a drawing machine, controlling the acting tension of the polyester grey cloth to enable the elongation of the polyester grey cloth to be within 4%, and continuously circulating high-speed airflow with the humidity of 25-30% on the surface of the polyester grey cloth to finish the treatment of the polyester grey cloth;

s2, printing and drying: preparing corresponding printing paste according to the required printing type, adding the printing paste into a printing machine, controlling the fiber wool direction of the gray fabric to be the same as the feeding direction, printing the printing paste on the gray fabric processed in S1, and rapidly drying the gray fabric through a dry roller at 105-120 ℃;

s3, washing the combed noodles with water: after the printing of the grey cloth is finished in S2, removing fluff on the surface of the grey cloth through combing, then putting the grey cloth into alkali liquor with the concentration of 4-7% for soaking for 10-12min, then rinsing the grey cloth with neutral water, and finally centrifugally spin-drying the grey cloth;

s4, drying, removing and shaping: flatly laying the spun-dried gray fabric in the step S3 into drying plates, controlling the water content of the gray fabric to be 14-19%, and simultaneously, mutually moving the drying plates on a horizontal plane, and controlling the moving distance to be within the range of twice the thickness of the gray fabric to finish the shaping of the fabric;

the drawing machine in S1 comprises a drawing drum (1), a frame (2) and a controller; two ends of the rack (2) are respectively provided with a pull cylinder (1), the pull cylinders (1) are rotatably arranged on the rack (2), and the axial directions of the pull cylinders (1) are positioned in the vertical direction; the middle part of the rack (2) is provided with airflow grooves (3), the airflow grooves (3) are distributed on two sides of the rack (2), and the airflow grooves (3) are distributed in an area between the two pull cylinders (1); the end part of the drawing tube (1) is provided with a driving servo motor (11), the servo motors (11) are respectively under different running powers under the action of a controller, and the servo motors (11) enable the grey cloth transmitted between the drawing tubes (1) to be stressed and drawn; the end part of the pulling cylinder (1) is provided with a sensor (12) for detecting displacement, the sensor (12) feeds back the sliding condition of the pulled grey cloth on the surface of the pulling cylinder (1) to a controller, and the controller adjusts the power output between the two servo motors (11) to change the acting force pulled by the single pulling cylinder (1) to maintain the stretching state of the grey cloth.

2. The process for thickening handfeel of printed polyester fabrics according to claim 1, which is characterized in that: air grooves (13) are formed in two sides of the pull cylinder (1), the air grooves (13) are installed on the rack (2), and the air grooves (13) are parallel to the pull cylinder (1); the air groove (13) faces the grey cloth between the pull cylinders (1), and a fan arranged in the air groove (13) provides an outward blown airflow to prevent the dispersed wetting airflow in the airflow groove (3) from contacting the pull cylinders (1).

3. The process for thickening handfeel of printed polyester fabrics according to claim 2, which is characterized in that: the pull cylinder (1) comprises a driving cylinder (4) and a pre-tightening cylinder (5), the driving cylinder (4) is in transmission connection with a servo motor (11), and the pre-tightening cylinder (5) is arranged on one side of the driving cylinder (4); the end part of the pre-tightening cylinder (5) is provided with a pressure-regulating cylinder (51), and the pre-tightening cylinder (5) meets the clamping force action on different grey fabrics through the regulating cylinder (51).

4. The process for thickening handfeel of printed polyester fabrics according to claim 3, which is characterized in that: a positioning rod (52) is arranged at the end part of the air cylinder (51), the positioning rod (52) is rotatably arranged on the rack (2), and a rotating shaft of the positioning rod (52) is superposed with the axis of the driving barrel (4); the tail end of the positioning rod (52) is provided with a balancing weight (53), and the balancing weight (53) enables the grey cloth on the pre-tightening barrel (5) to deflect around the driving barrel (4) through the positioning rod (52).

5. The process for thickening handfeel of printed polyester fabrics according to claim 4, which is characterized in that: the tail end of the positioning rod (52) is also provided with a pin rod (54), and the top end of the pin rod (54) is provided with a clamping ring (541); the pin rod (54) changes the number of the installed balancing weights (53) through the clamping ring (541), and further adjusts the deflection state of the positioning lever and the acting force of the pre-tightening cylinder (5) on the grey cloth.

6. The process for thickening handfeel of printed polyester fabrics according to claim 1, which is characterized in that: an air return opening (21) is formed in the bottom of the rack (2), the air return opening (21) is located below the airflow groove (3), and a notch of the air return opening (21) faces to the right upper side; the tail end of the air return opening (21) is provided with an air duct (31) communicated with the airflow groove (3), and a circulating fan and a humidistat are arranged in the air duct (31).

Technical Field

The invention relates to the technical field of fabric processing, in particular to a process for thickening handfeel of a polyester printed fabric.

Background

The terylene is commonly known as polyester fiber, is synthetic fiber obtained by spinning polyester formed by polycondensation, and belongs to a high molecular compound; the polyester fiber has the greatest advantages of good crease resistance and shape retention, high strength and elasticity recovery capability, is a very large chemical fiber garment fabric used in daily life, is used as a garment fabric, is provided with pattern lines on the surface to show the difference between fabrics and the personality of a wearer, and simultaneously changes the hand feeling performance of the polyester fabric in the printing process of the polyester fabric; for the introduction of the handfeel of the polyester printed fabric, the Muhuali et al, the quantitative characterization of the handfeel style of the polyester fabric [ J ], the electrotype dyeing auxiliary agent, 2017(No.5), 57-60 can be seen.

After the grey cloth which is packaged in a winding mode is stretched again, fine wrinkles generated in the winding process are reflected on the drawing drums, the actual length of the grey cloth between the drawing drums is changed, the constant stretching rate state of the drawing drums for the grey cloth is damaged, the printing effect in subsequent grey cloth processing is weakened, and the thick hand feeling of a final fabric finished product can be influenced due to the damage to the fiber structure of the grey cloth.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a process for thickening handfeel of polyester printed fabrics, wherein the change of the stretching rate of grey cloth between pulling cylinders is fed back to a controller through a sensor arranged on the pulling cylinder and a servo motor which is independently driven at the end part of the pulling cylinder, the rotating running state between the pulling cylinders is timely adjusted, the stable stretching effect on the grey cloth is maintained, and the vertical pulling cylinder is utilized to meet the balance effect of wetting air flow on the surfaces of two sides of the grey cloth under the gravity, so that the application effect of the process for thickening handfeel of polyester printed fabrics is improved.

The invention relates to a process for thickening handfeel of a polyester printed fabric, which comprises the following steps:

s1, grey cloth treatment: unfolding the packaged polyester grey cloth, mounting the polyester grey cloth on a drawing machine, controlling the acting tension of the polyester grey cloth to enable the elongation of the polyester grey cloth to be within 4%, and continuously circulating high-speed airflow with the humidity of 25-30% on the surface of the polyester grey cloth to finish the treatment of the polyester grey cloth; by utilizing the telescopic performance of the polyester fabric, the internal stress formed in the winding and packaging of the grey cloth is eliminated by stretching the polyester grey cloth, the shape of the grey cloth after printing is stabilized, the stored fabric fiber is fully contacted with air, and the surface layer of the grey cloth is wetted by the high-speed circulating wet air flow, so that the subsequent printing sizing agent is convenient to attach;

s2, printing and drying: preparing corresponding printing paste according to the required printing type, adding the printing paste into a printing machine, controlling the fiber wool direction of the gray fabric to be the same as the feeding direction, printing the printing paste on the gray fabric processed in S1, and rapidly drying the gray fabric through a dry roller at 105-120 ℃; the effect of attaching the printing paste is improved by controlling the fiber wool direction of the grey cloth, and residual moisture between the printing paste and the grey cloth is removed by drying, so that the printing is stabilized in the fiber of the grey cloth;

s3, washing the combed noodles with water: after the printing of the grey cloth is finished in S2, removing fluff on the surface of the grey cloth through combing, then putting the grey cloth into alkali liquor with the concentration of 4-7% for soaking for 10-12min, then rinsing the grey cloth with neutral water, and finally centrifugally spin-drying the grey cloth; fiber hairs which are not firm on the surface of the fabric in the printing process are removed through the carding surface, and then the fiber hairs are soaked in low-concentration alkali liquor to promote the breakage of ester bonds of the polyester fibers, so that the reaction between the printing slurry and the polyester fibers is completed;

s4, drying, removing and shaping: flatly laying the spun-dried gray fabric in the step S3 into drying plates, controlling the water content of the gray fabric to be 14-19%, and simultaneously, mutually moving the drying plates on a horizontal plane, and controlling the moving distance to be within the range of twice the thickness of the gray fabric to finish the shaping of the fabric; by controlling the level of the water content after dehydration, the phenomenon that the stability of printing paste on a fiber structure is damaged after excessively dried polyester fabrics are wetted is avoided, and the distribution uniformity of the fiber structure in the fabrics is promoted by pulling the grey cloth by the drying plate;

the drawing machine in the S1 comprises a drawing drum, a frame and a controller; the two ends of the rack are respectively provided with a pull cylinder, the pull cylinders are rotatably arranged on the rack, and the axial directions of the pull cylinders are positioned in the vertical direction; the middle part of the frame is provided with airflow grooves which are distributed on two sides of the frame, and the airflow grooves are distributed in the area between the two pull cylinders; the end part of the drawing drum is provided with a driving servo motor, the servo motors are respectively under different running powers under the action of a controller, and the servo motors enable the grey cloth transmitted between the drawing drums to be stressed and stretched; the end part of the pull cylinder is provided with a sensor for detecting displacement, the sensor feeds back the sliding condition of the drawn grey cloth on the surface of the pull cylinder to the controller, and the controller adjusts the power output between the two servo motors to change the acting force drawn by the single pull cylinder to maintain the stretching state of the grey cloth; the grey cloth which is wound and packaged is arranged on a pull cylinder, a controller is started to enable the grey cloth to be in a stretched state, the running power difference between servo motors is controlled to achieve the stretching effect on grey cloth fibers, in the process that the grey cloth is moved to the pull cylinder for stretching, fine wrinkles generated in the winding process of the grey cloth which is wound and packaged are reflected on the pull cylinder after the grey cloth is stretched again, the actual length of the grey cloth between the pull cylinders is changed, the constant stretching rate state of the pull cylinder on the grey cloth is damaged, and the thick hand feeling in the subsequent processing of the grey cloth is weakened; the increase or decrease condition of the grey cloth in unit time is reflected in the relative displacement of the grey cloth on the surface of the pull cylinder through a sensor arranged at the end part of the pull cylinder, the relative displacement is fed back to a controller to correct and adjust a servo motor, the same wetting effect on two sides of the grey cloth is maintained through an airflow groove arranged between vertical pull cylinders, and the balanced treatment on the grey cloth is achieved; the invention utilizes the sensor arranged on the pull cylinder and the servo motor which is matched with the end part of the pull cylinder and is independently driven, the change of the stretching rate of the grey cloth between the pull cylinders is fed back to the controller, the rotating running state between the pull cylinders is timely adjusted, the stable stretching effect on the grey cloth is maintained, and the vertical pull cylinders are utilized to meet the balance effect of the wetting air flow on the surfaces of two sides of the grey cloth under the gravity, thereby improving the application effect of the thickening hand feeling process of the polyester printed fabric.

Preferably, air grooves are formed in two sides of the pull cylinder, the air grooves are installed on the rack, and the air grooves are parallel to the pull cylinder; the air groove faces the grey cloth between the pull cylinders, and the fan in the air groove provides an outward blown airflow to prevent the dispersed wetting airflow in the airflow groove from contacting the pull cylinders; under the action of wetting air flow in an air flow groove, the water content of fibers on the surface layer of the grey cloth is increased, so that the attachment effect of sizing agent on the surface of the grey cloth in the printing process is met, the wetting air emitted in the air flow groove can also float to the area of the pulling cylinder, the air containing moisture is attached to the surface of the pulling cylinder in a stretching state, the friction force between the pulling cylinder and the grey cloth can be damaged, and the stable stretching effect of the pulling cylinder on the grey cloth is interfered; through setting up the wind groove in slide both sides, the air current that the fan blew out in the wind groove forms the protective screen in the position of slide, avoids dispersed air current to adhere to the surface of slide, maintains invariable frictional force between slide and grey cloth, and then keeps the stability of grey cloth elongation to the application effect of dacron printed fabric bodiness technology of feeling has been promoted.

Preferably, the pull cylinder comprises a driving cylinder and a pre-tightening cylinder, the driving cylinder is in transmission connection with the servo motor, and the pre-tightening cylinder is arranged on one side of the driving cylinder; the end part of the pre-tightening cylinder is provided with a pressure regulating cylinder, and the pre-tightening cylinder meets the clamping force effect on different grey fabrics through the regulating cylinder; in the stretching state of the grey cloth between the drawing tubes, due to the friction acting force between the drawing tubes and the single-side surface of the grey cloth, the elastic deformation force after the grey cloth is stretched is difficult to meet, the stretching rate effect of the grey cloth cannot be achieved, the effect of the drawing tubes is weakened, and the processing of the subsequent process is influenced; the driving cylinder and the pre-tightening cylinder arranged in the pull cylinder act with the surfaces of two sides of the grey cloth at the same time, so that the friction force on the grey cloth is increased, an additional clamping force action is exerted according to the performance of the grey cloth material by adjusting the air cylinder at the end part of the pre-tightening cylinder, the sliding friction condition in the grey cloth stretching is reduced, and the application effect of the polyester printed fabric thickening hand feeling process is maintained.

Preferably, the end part of the cylinder is provided with a positioning rod, the positioning rod is rotatably arranged on the rack, and a rotating shaft of the positioning rod is superposed with the axis of the driving barrel; the tail end of the positioning rod is provided with a balancing weight, and the balancing weight enables the grey cloth on the pre-tightening cylinder to deflect around the driving cylinder through the positioning rod; under the matching action between the pre-tightening cylinder and the driving cylinder, the fiber structure of the grey cloth is prevented from being damaged by overlarge pre-tightening force, and meanwhile, the driving cylinder and the pre-tightening cylinder are in line contact with the pulled grey cloth, so that the friction acting force of the grey cloth still has a space for improving; the pre-tightening barrel is rotatably installed on the rack by the positioning rod, so that the pre-tightening barrel rotates by taking the driving barrel as an axis, the deflection acting force of the pre-tightening barrel is transmitted through the lever of the positioning rod under the action of the balancing weight at the end part of the positioning rod, the contact area between the driving barrel and the pre-tightening barrel and the grey cloth is increased, the friction force on the grey cloth is enhanced under the action of the same pre-tightening force, and the application effect of the polyester printed fabric thickening and hand feeling process is improved.

Preferably, the tail end of the positioning rod is also provided with a pin rod, and the top end of the pin rod is provided with a clamping ring; the pin rod changes the number of the installed counterweight blocks through the clamping ring, so that the deflection state of the positioning rod and the acting force of the pre-tightening cylinder on the grey cloth are adjusted; the power difference between the servo motors and the acting force of the air cylinder are changed according to the performance of processing the grey cloth so as to meet the protection effect on the fiber structure of the grey cloth, and the deflection state of the positioning rod can also act on the grey cloth, so that the corresponding pulling effect is exerted on the grey cloth, and the stability of the grey cloth fiber is influenced; through setting up the pin rod on the locating lever, carry out corresponding adjustment to the effort state of balancing weight installation, adjust the effort size of a section of thick bamboo to grey cloth in advance through the deflection state that changes the locating lever, the adaptation is in the tensile process of different performance grey cloth to the application effect of dacron printed fabric bodiness technology of feeling has been promoted.

Preferably, the bottom of the frame is provided with an air return inlet, the air return inlet is positioned below the airflow groove, and a notch of the air return inlet faces to the right upper side; the tail end of the air return inlet is provided with an air duct communicated with the airflow groove, and a circulating fan and a humidistat are arranged in the air duct; the activity of the surface fiber of the grey cloth is changed by the action of the wetting gas in the airflow groove on the stretched grey cloth, and the gas containing moisture flowing through the grey cloth finally settles below the rack, so that the waste of the wetting airflow is caused; through the air return opening arranged below the airflow groove and the air duct communicated with the air return opening, airflow which is settled after the surface of the grey cloth is wetted is collected and recycled after treatment, and the utilization rate of the wetted airflow in the stretching of the grey cloth is increased, so that the application effect of the thickening hand feeling process of the polyester printed fabric is improved.

The invention has the following beneficial effects:

1. according to the invention, the sensor arranged on the pull cylinder is matched with the independently driven servo motor at the end part of the pull cylinder, so that the rotating operation state between the pull cylinders is timely adjusted, and the stable stretching effect on the grey cloth is maintained; the air grooves arranged on the two sides of the pull cylinder form barriers at the position of the pull cylinder, so that dispersed air flow is prevented from being attached to the surface of the pull cylinder, and constant friction force between the pull cylinder and the grey cloth is maintained; the driving cylinder and the pre-tightening cylinder arranged in the pulling cylinder increase the friction force on the grey cloth and reduce the sliding friction condition in the grey cloth stretching.

2. According to the invention, the pre-tightening barrel is rotatably arranged on the rack by the positioning rod, so that the contact area between the driving barrel and the pre-tightening barrel and the grey cloth is increased, and the friction force to the grey cloth is enhanced under the same pre-tightening force; the pin rod is arranged on the positioning rod, and correspondingly adjusts the acting force state of the counterweight block to adapt to the stretching process of grey cloth with different performances; the air return port arranged below the air flow groove is matched with the air duct communicated with the air flow groove, so that airflow settled after the surface of the grey cloth is wetted is collected for recycling, and the utilization rate of the wetted airflow in the grey cloth stretching is increased.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a process flow chart of the thickened hand feeling of the printed polyester fabric in the invention;

FIG. 2 is a perspective view of the drawing machine of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

in the figure: the device comprises a pull cylinder 1, a servo motor 11, a sensor 12, an air duct 13, a frame 2, an air return opening 21, an airflow duct 3, an air duct 31, a driving cylinder 4, a pre-tightening cylinder 5, an air cylinder 51, a positioning rod 52, a balancing weight 53, a pin rod 54 and a clamping ring 541.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in figures 1 to 3, the process for thickening the handfeel of the printed polyester fabric comprises the following steps:

s1, grey cloth treatment: unfolding the packaged polyester grey cloth, mounting the polyester grey cloth on a drawing machine, controlling the acting tension of the polyester grey cloth to enable the elongation of the polyester grey cloth to be within 4%, and continuously circulating high-speed airflow with the humidity of 25-30% on the surface of the polyester grey cloth to finish the treatment of the polyester grey cloth; by utilizing the telescopic performance of the polyester fabric, the internal stress formed in the winding and packaging of the grey cloth is eliminated by stretching the polyester grey cloth, the shape of the grey cloth after printing is stabilized, the stored fabric fiber is fully contacted with air, and the surface layer of the grey cloth is wetted by the high-speed circulating wet air flow, so that the subsequent printing sizing agent is convenient to attach;

s2, printing and drying: preparing corresponding printing paste according to the required printing type, adding the printing paste into a printing machine, controlling the fiber wool direction of the gray fabric to be the same as the feeding direction, printing the printing paste on the gray fabric processed in S1, and rapidly drying the gray fabric through a dry roller at 105-120 ℃; the effect of attaching the printing paste is improved by controlling the fiber wool direction of the grey cloth, and residual moisture between the printing paste and the grey cloth is removed by drying, so that the printing is stabilized in the fiber of the grey cloth;

s3, washing the combed noodles with water: after the printing of the grey cloth is finished in S2, removing fluff on the surface of the grey cloth through combing, then putting the grey cloth into alkali liquor with the concentration of 4-7% for soaking for 10-12min, then rinsing the grey cloth with neutral water, and finally centrifugally spin-drying the grey cloth; fiber hairs which are not firm on the surface of the fabric in the printing process are removed through the carding surface, and then the fiber hairs are soaked in low-concentration alkali liquor to promote the breakage of ester bonds of the polyester fibers, so that the reaction between the printing slurry and the polyester fibers is completed;

s4, drying, removing and shaping: flatly laying the spun-dried gray fabric in the step S3 into drying plates, controlling the water content of the gray fabric to be 14-19%, and simultaneously, mutually moving the drying plates on a horizontal plane, and controlling the moving distance to be within the range of twice the thickness of the gray fabric to finish the shaping of the fabric; by controlling the level of the water content after dehydration, the phenomenon that the stability of printing paste on a fiber structure is damaged after excessively dried polyester fabrics are wetted is avoided, and the distribution uniformity of the fiber structure in the fabrics is promoted by pulling the grey cloth by the drying plate;

the drawing machine in the S1 comprises a drawing cylinder 1, a frame 2 and a controller; two ends of the rack 2 are respectively provided with a pull cylinder 1, the pull cylinders 1 are rotatably arranged on the rack 2, and the axial directions of the pull cylinders 1 are positioned in the vertical direction; the middle part of the frame 2 is provided with an airflow groove 3, the airflow grooves 3 are distributed on two sides of the frame 2, and the airflow grooves 3 are distributed in the area between the two pull cylinders 1; the end part of the pull cylinder 1 is provided with a driving servo motor 11, the servo motors 11 are respectively under different operating powers under the action of a controller, and the servo motors 11 enable the grey cloth transmitted between the pull cylinders 1 to be stressed and stretched; a sensor 12 for detecting displacement is arranged at the end part of the drawing tube 1, the sensor 12 feeds back the sliding condition of the drawn grey cloth on the surface of the drawing tube 1 to a controller, and the controller adjusts the power output between the two servo motors 11 to change the acting force drawn by the single drawing tube 1 to maintain the drawing state of the grey cloth; the grey cloth which is wound and packaged is arranged on a pull cylinder 1, a controller is started to enable the grey cloth to be in a stretched state, the running power difference between servo motors 11 is controlled to achieve the stretching effect on the grey cloth fibers, in the process that the grey cloth moves to the pull cylinder 1 for stretching, fine wrinkles generated in the winding process of the wound and packaged grey cloth are reflected on the pull cylinder 1 after the grey cloth is stretched again, the actual length of the grey cloth between the pull cylinders 1 is changed, the constant stretching rate state of the pull cylinder 1 on the grey cloth is damaged, and the representation of thick and solid hand feeling in the subsequent processing of the grey cloth is weakened; the increase or decrease condition of the grey cloth in unit time is reflected in the relative displacement of the grey cloth on the surface of the drawing tube 1 through a sensor 12 arranged at the end part of the drawing tube 1, the relative displacement is fed back to a controller to correct and adjust a servo motor 11, the same wetting effect on the two sides of the grey cloth is maintained through an airflow groove 3 arranged between the vertical drawing tubes 1, and the balanced treatment on the grey cloth is achieved; according to the invention, the sensor 12 arranged on the pull cylinder 1 is utilized, the servo motor 11 which is independently driven is matched with the end part of the pull cylinder 1, the change of the stretching rate of the grey cloth between the pull cylinders 1 is fed back to the controller, the rotating operation state between the pull cylinders 1 is timely adjusted, the stable stretching effect on the grey cloth is maintained, the vertical pull cylinder 1 is utilized to meet the balance effect of wetting air flow on the two side surfaces of the grey cloth under the gravity, and thus the application effect of the polyester printed fabric thickening hand feeling process is improved.

As an embodiment of the invention, two sides of the pull cylinder 1 are provided with air grooves 13, the air grooves 13 are installed on the frame 2, and the air grooves 13 are parallel to the pull cylinder 1; the air groove 13 faces the grey cloth between the pull cylinders 1, and the fan in the air groove 13 provides an outward blown airflow to prevent the dispersed wetting airflow in the airflow groove 3 from contacting the pull cylinders 1; under the action of the wetting air flow in the air flow groove 3, the gray fabric between the pull cylinders 1 increases the water content of fibers on the surface layer of the gray fabric so as to meet the attachment effect of sizing agent on the surface of the gray fabric in the printing process, the wetting air emitted in the air flow groove 3 can also float to the area of the pull cylinder 1, the air containing moisture is attached to the surface of the pull cylinder 1 in a stretching state, the friction force between the pull cylinder 1 and the gray fabric can be damaged, and the stable stretching effect of the pull cylinder 1 on the gray fabric is interfered; through the air grooves 13 arranged on the two sides of the drawing tube 1, airflow blown out by the fan in the air grooves 13 forms a barrier at the position of the drawing tube 1, so that dispersed airflow is prevented from being attached to the surface of the drawing tube 1, constant friction force between the drawing tube 1 and grey cloth is maintained, the stability of the grey cloth stretching rate is further kept, and the application effect of the polyester printed fabric thickening hand feeling process is improved.

As an embodiment of the invention, the pull cylinder 1 comprises a driving cylinder 4 and a pre-tightening cylinder 5, the driving cylinder 4 is in transmission connection with a servo motor 11, and the pre-tightening cylinder 5 is arranged on one side of the driving cylinder 4; the end part of the pre-tightening cylinder 5 is provided with a pressure regulating cylinder 51, and the pre-tightening cylinder 5 meets the clamping force effect on different grey fabrics through the regulating cylinder 51; in the stretching state of the grey cloth between the drawing tubes 1, due to the friction acting force between the drawing tubes 1 and the single-side surface of the grey cloth, the elastic deformation force after the grey cloth is stretched is difficult to meet, the stretching rate effect of the grey cloth cannot be achieved, the effect of the drawing tubes 1 is weakened, and the processing of the subsequent processes is influenced; the driving cylinder 4 and the pre-tightening cylinder 5 which are arranged in the pull cylinder 1 act with the surfaces of two sides of the grey cloth at the same time, so that the friction force on the grey cloth is increased, an additional clamping force action is exerted according to the performance of the grey cloth material by adjusting the air cylinder 51 at the end part of the pre-tightening cylinder 5, the sliding friction condition in the grey cloth stretching is reduced, and the application effect of the polyester printed fabric thickening hand feeling process is maintained.

In one embodiment of the present invention, a positioning rod 52 is disposed at an end of the cylinder 51, the positioning rod 52 is rotatably mounted on the frame 2, and a rotating shaft of the positioning rod 52 coincides with an axial center of the driving cylinder 4; the end of the positioning rod 52 is provided with a counterweight 53, and the counterweight 53 deflects the grey cloth on the pre-tightening barrel 5 around the driving barrel 4 through the positioning rod 52; under the matching action between the pre-tightening cylinder 5 and the driving cylinder 4, the fiber structure of the grey cloth needs to be prevented from being damaged by excessive pre-tightening force, and meanwhile, the driving cylinder 4 and the pre-tightening cylinder 5 are in line contact with the pulled grey cloth, so that the friction acting force of the grey cloth still has a space for improving; the pre-tightening barrel 5 is rotatably arranged on the rack 2 through the positioning rod 52, so that the pre-tightening barrel 5 rotates by taking the driving barrel 4 as an axis, and under the action of the balancing weight 53 at the end part of the positioning rod 52, the deflection acting force of the pre-tightening barrel 5 is transmitted through the lever of the positioning rod 52, so that the contact area between the driving barrel 4 and the pre-tightening barrel 5 and the grey cloth is increased, the friction force on the grey cloth is enhanced under the action of the same pre-tightening force, and the application effect of the polyester printed fabric thickening hand feeling process is improved.

In one embodiment of the present invention, a pin 54 is further disposed at a distal end of the positioning rod 52, and a snap ring 541 is disposed at a distal end of the pin 54; the pin rod 54 changes the number of the installed balancing weights 53 through the clamping ring 541, so as to adjust the deflection state of the positioning rod 52 and the acting force of the pre-tightening cylinder 5 on the grey cloth; the power difference between the servo motors 11 and the acting force of the air cylinder 51 are changed according to the performance of processing the grey cloth so as to meet the protection effect on the fiber structure of the grey cloth, and the deflection state of the positioning rod 52 can also act on the grey cloth, so that the corresponding pulling effect is exerted on the grey cloth, and the stability of the grey cloth fibers is influenced; the acting force state of the installation of the balancing weight 53 is correspondingly adjusted through the pin rod 54 arranged on the positioning rod 52, and the acting force of the pre-tightening barrel 5 on the grey cloth is adjusted through changing the deflection state of the positioning rod 52 so as to adapt to the stretching process of the grey cloth with different performances, thereby improving the application effect of the polyester printed fabric thickening hand feeling process.

As an embodiment of the invention, the bottom of the frame 2 is provided with an air return opening 21, the air return opening 21 is positioned below the airflow groove 3, and the notch of the air return opening 21 faces to the right upper side; the tail end of the air return opening 21 is provided with an air duct 31 communicated with the airflow groove 3, and a circulating fan and a humidistat are installed in the air duct 31; the activity of the surface fiber of the grey cloth is changed by the action of the wetting gas in the airflow groove 3, and the gas containing moisture flowing through the grey cloth finally settles below the rack 2, so that the waste of the wetting airflow is caused; through the cooperation of the air return port 21 arranged below the airflow groove 3 and the air duct 31 communicated with the air return port, airflow which is settled after the surface of the grey cloth is wetted is collected and recycled after treatment, and the utilization rate of the wetted airflow in the grey cloth stretching is increased, so that the application effect of the polyester printed fabric thickening hand feeling process is improved.

When the winding and packaging gray fabric drawing machine is used, the wound and packaged gray fabric is arranged on the drawing drum 1, the controller is started to enable the gray fabric to be in a stretched state, the running power difference between the servo motors 11 is controlled to achieve the drawing effect on the fibers of the gray fabric, and the gray fabric is moved to the drawing drum 1 to be drawn; the increase or decrease condition of the grey cloth in unit time is reflected in the relative displacement of the grey cloth on the surface of the drawing tube 1 through a sensor 12 arranged at the end part of the drawing tube 1, the relative displacement is fed back to a controller to correct and adjust a servo motor 11, the same wetting effect on the two sides of the grey cloth is maintained through an airflow groove 3 arranged between the vertical drawing tubes 1, and the balanced treatment on the grey cloth is achieved; the air grooves 13 are arranged at two sides of the drawing tube 1, and breeze blown out from the air grooves 13 forms a barrier at the position of the drawing tube 1, so that dispersed airflow is prevented from being attached to the surface of the drawing tube 1, constant friction force between the drawing tube 1 and the grey cloth is maintained, and the stability of the tensile rate of the grey cloth is further maintained; the driving cylinder 4 and the pre-tightening cylinder 5 arranged in the pull cylinder 1 act with the surfaces of two sides of the grey cloth at the same time, so that the friction force on the grey cloth is increased, and an additional clamping force action is exerted according to the performance of the grey cloth material by adjusting the air cylinder 51 at the end part of the pre-tightening cylinder 5, so that the sliding friction condition in the process of stretching the grey cloth is reduced; the pre-tightening cylinder 5 is rotatably arranged on the frame 2 by the positioning rod 52, so that the pre-tightening cylinder 5 rotates by taking the driving cylinder 4 as an axis, and under the action of the balancing weight 53 at the end part of the positioning rod 52, the deflection acting force of the pre-tightening cylinder 5 is transmitted by the lever of the positioning rod 52, the contact area between the driving cylinder 4 and the pre-tightening cylinder 5 and the grey cloth is increased, and the friction force to the grey cloth is enhanced under the action of the same pre-tightening force; the pin rod 54 arranged on the positioning rod 52 correspondingly adjusts the acting force state of the counterweight block 53, and adjusts the acting force of the pre-tightening cylinder 5 on the grey cloth by changing the deflection state of the positioning rod 52 so as to adapt to the stretching process of the grey cloth with different performances; the air return opening 21 arranged below the airflow groove 3 is matched with the air duct 31 communicated with the air return opening, airflow which is settled after the surface of the grey cloth is wetted is collected and recycled after treatment, and the utilization rate of the wetted airflow in the grey cloth stretching is increased.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.