Wool knitted fabric production process based on data monitoring

Abstract

The invention relates to the technical field of knitted fabric production, in particular to a wool knitted fabric production process based on data monitoring, which comprises the following steps: sequentially spinning and weaving processed wool fibers to output semi-finished knitted fabric; the semi-finished knitted fabric is sequentially subjected to drying, wool fiber rearrangement and combination and post-treatment operation, and a finished wool knitted fabric is output; obtaining the number of damaged points in the semi-finished knitted fabrics in a plurality of batches detected by a visual sensor; determining the production stability of the knitted fabric based on the variance of the number of the damaged points in the semi-finished knitted fabric; if it is determined that the production stability does not meet the requirement, the yarn feeding rate in the weaving process is determined; and if the processing effectiveness does not meet the requirement, the air supply frequency of a fan in the dryer is determined. The production stability of the knitted fabric is improved.

Description

Technical Field

[0001] The invention relates to the technical field of knitted fabric production, and in particular to a wool knitted fabric production process based on data monitoring. Background Art

[0002] In the prior art, knitted fabrics are fabrics formed by bending yarns into loops and interlacing them with knitting needles. The difference between knitted fabrics and woven fabrics is that the yarns have different forms in the fabrics. Knitting is divided into weft knitting and warp knitting. Knitted fabrics are widely used in clothing fabrics and linings, home textiles and other products, and are loved by consumers. Knitted fabrics have their own preparation process in the preparation process. A good preparation process can improve production efficiency and reduce the scrap rate.

[0003] Chinese Patent Publication No.: CN116377645A discloses a knitted fabric and its preparation process, the production process includes the following steps: S1, yarn production and dyeing, the yarn is installed in a straight line in the middle, the outer surface of the straight line is cross-wound by two spiral lines, the yarn is placed in a dyeing tank for dyeing, and the dyed yarn is wound on a bobbin, when the machine is started, the yarn on the bobbin can be driven to pass through the first transmission roller, and then the yarn can be separated under the action of the first classification roller, and under the action of the second classification roller, three strands of yarn are grouped together for cross-wound, so as to avoid mutual entanglement during the winding process; S2, fabric shaping, the wound yarn can be made into fabric under the action of the knitting mechanism, and then it can be carried out on the operating table Transport, and then under the action of the second transmission roller, the shaped fabric can be transported to the liquid frame; S3, polishing treatment, the shaped fabric is wound from the third transmission roller, and then it can be transported to the drying plate from the second rectangular through hole. At this time, the fabric can be infiltrated by the polishing liquid inside the liquid frame, and then its outer surface is polished. The first motor can drive the first gear to rotate, and then the second gear and the third gear can be driven to rotate, and then the fixed rod and the arc plate can be driven to rotate, and then the polishing liquid in the liquid frame can be mixed to prevent precipitation; S4, drying, when the polished fabric is transported to the drying board, the power supply and the second motor are started at this time, the power supply can make the heating tube electrically heated, and the second motor can drive the fan blades to rotate, and then the heat emitted by the heating tube is blown to the fabric to accelerate the heat dissipation. It can be seen that the knitted fabric and its preparation process have the problem that the knitting needles of the knitting machine are worn after a long time of use, and the knitting machine cannot operate normally, and then the fabric is broken or damaged, resulting in an increase in the damage point of the knitted fabric. Summary of the invention

[0004] To this end, the present invention provides a wool knitted fabric production process based on data monitoring, so as to overcome the problem in the prior art that the knitting machine cannot operate normally due to the wear of the knitting needles after long-term use, and the fabric breaks or is damaged, thereby increasing the damage points of the knitted fabric.

[0005] To achieve the above-mentioned purpose, the present invention provides a wool knitted fabric production process based on data monitoring, comprising: spinning and weaving the treated wool fibers in sequence to output semi-finished knitted fabrics; drying, rearranging and combining the wool fibers and post-processing the semi-finished knitted fabrics in sequence to output finished wool knitted fabrics; obtaining the number of damaged points in the semi-finished knitted fabrics in several batches detected by a visual sensor; determining the production stability of the knitted fabrics based on the variance of the number of damaged points in the semi-finished knitted fabrics; if it is determined that the production stability does not meet the requirements, determining the yarn feeding rate of the weaving process or determining the treatment effectiveness of the wool knitted fabrics based on the variance of the number of damaged points in the semi-finished knitted fabrics and the temperature rise rate of the dryer; if the treatment effectiveness does not meet the requirements, determining the air supply frequency of the fan in the dryer or determining the distance between the steam nozzle and the dry fabric based on the average humidity of the air in the steam setting machine; wherein, the process of rearranging and combining the wool fibers is to use the steam setting machine to send the dried wool fibers into a steam environment for setting.

[0006] Further, determining the production stability of the knitted fabric comprises: The production stability of the knitted fabric is determined based on the variance of the number of damaged points in the semi-finished knitted fabric, where If the variance of the number of damaged points in the semi-finished knitted fabric is greater than a preset first variance, it is determined that the production stability of the knitted fabric does not meet the requirements.

[0007] Further, determining the yarn feeding rate of the weaving process includes, Comparing the variance of the number of damaged points in the semi-finished knitted fabric with the preset first variance and the preset second variance respectively; If the variance of the number of damaged points in the semi-finished knitted fabric is greater than the preset second variance, the yarn feeding rate of the knitting process is reduced.

[0008] Further, determining the effectiveness of the treatment of the wool knitted fabric comprises: comparing the variance of the number of damaged points in the semi-finished knitted fabric with the preset first variance and the preset second variance respectively; Based on the determination result that the variance of the number of damage points in the semi-finished knitted fabric is greater than the preset first variance and less than or equal to the preset second variance and the temperature rise rate of the dryer, the treatment effectiveness of the wool knitted fabric is determined, wherein if the temperature rise rate is greater than the preset first rise rate, it is determined that the treatment effectiveness of the wool knitted fabric does not meet the requirements.

[0009] Furthermore, the reduction range of the yarn feeding rate in the knitting process is determined by the difference between the variance of the number of damaged points in the semi-finished knitted fabric and a preset second variance.

[0010] Further, determining the air supply frequency of the fan in the dryer according to the temperature increase rate of the dryer includes: Comparing the temperature increase rate of the dryer with a preset first increase rate and a preset second increase rate respectively; If the temperature increase rate of the dryer is greater than the preset first increase rate and less than or equal to the preset second increase rate, reducing the air supply frequency of the fan in the dryer; If the temperature increase rate of the drying machine is greater than the preset second increase rate, the operation stability of the steam setting machine is judged in combination with the average humidity of the air in the steam setting machine to determine the distance between the steam nozzle and the drying fabric.

[0011] Further, the temperature increase rate of the dryer is the ratio of the difference between the temperature of the dryer at the end of the unit time and the temperature of the dryer at the beginning of the unit time to the duration of the unit time.

[0012] Furthermore, the reduction range of the air supply frequency of the fan in the dryer is determined by the difference between the temperature increase rate of the dryer and a preset first increase rate.

[0013] Further, determining the distance between the steam nozzle and the drying fabric includes: Acquire the humidity of the air in the steam setting machine during several setting cycles detected by the humidity sensor, and calculate the average humidity of the air in the steam setting machine; comparing the average humidity of the air in the steam setting machine with a preset humidity; If the average humidity of the air in the steam setting machine is greater than the preset humidity, it is determined that the operating stability of the steam setting machine does not meet the requirements, and the distance between the steam nozzle and the drying fabric is increased.

[0014] Furthermore, the increase range of the distance between the steam nozzle and the drying fabric is determined by the difference between the average humidity of the air in the steam setting machine and a preset humidity.

[0015] Compared with the prior art, the beneficial effect of the present invention lies in that the method of the present invention determines the yarn feeding rate of the knitting process according to the variance of the number of damaged points in the semi-finished knitted fabric. Since the knitting machine has been used for a long time, the knitting needles are worn out, which causes the knitting machine to be unable to operate normally, thereby causing the fabric to break or be damaged. By reducing the yarn feeding rate of the knitting process, the friction between the knitting needles and the yarn is reduced, thereby reducing the probability of the knitting needles being worn out. By determining the air supply frequency of the fan in the dryer according to the temperature increase rate of the dryer, since part of the fabric fibers may be blown out during the drying process of the knitted fabric and brought to the air outlet by the air supply system in the dryer, the long-term accumulation leads to The air outlet is blocked, which leads to problems with the temperature control of the dryer. By reducing the air supply frequency of the fan in the dryer, the impact of the temperature control problem of the dryer caused by the fabric fibers blocking the air outlet is reduced. The distance between the steam nozzle and the dry fabric is determined according to the average humidity of the air in the steam setting machine. Due to damage at the line joint connected to the control valve in the steam setting machine, the line contact is poor, which leads to failure of the control circuit and problems with the control valve, which leads to excessive humidity in the steam setting machine. By increasing the distance between the steam nozzle and the dry fabric, the accumulation of steam on the surface of the fabric is reduced, thereby reducing the humidity on the surface of the fabric, thereby improving the production stability of knitted fabrics.

[0016] Furthermore, the method of the present invention determines the yarn feeding rate of the weaving process by setting a preset first variance and a preset second variance. Since the knitting machine has been used for a long time, the knitting needles are worn, causing the knitting machine to be unable to operate normally, thereby causing the fabric to break or be damaged. By reducing the yarn feeding rate of the weaving process, the friction between the knitting needles and the yarn is reduced, thereby reducing the probability of the knitting needles being worn, thereby further achieving an improvement in the production stability of the knitted fabric.

[0017] Furthermore, the method of the present invention determines the air supply frequency of the fan in the dryer by setting a preset first increase rate and a preset second increase rate. During the drying process of knitted fabrics, some fabric fibers may be blown out and brought to the air outlet by the air supply system in the dryer. After a long period of accumulation, the air outlet may be blocked, thereby causing problems with the temperature control of the dryer. By increasing the air supply frequency of the fan in the dryer, the impact of the temperature control problems of the dryer caused by the fabric fibers blocking the air outlet is reduced, thereby further achieving the improvement of the production stability of knitted fabrics.

[0018] Furthermore, the method of the present invention determines the distance between the steam nozzle and the dry fabric by setting a preset humidity. Due to damage at the line joint connected to the control valve in the steam setting machine, poor line contact occurs, resulting in a malfunction in the control circuit and a problem with the control valve, which causes the humidity of the steam setting machine to be excessive. By increasing the distance between the steam nozzle and the dry fabric, the accumulation of steam on the surface of the fabric is reduced, thereby further achieving an improvement in the production stability of knitted fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an overall flow chart of a wool knitted fabric production process based on data monitoring according to an embodiment of the present invention; Figure 2 It is a logic flow chart of the wool knitted fabric production process based on data monitoring according to an embodiment of the present invention; Figure 3 A specific flow chart of a process of determining the air supply frequency of a fan in a dryer in a wool knitted fabric production process based on data monitoring according to an embodiment of the present invention; Figure 4 The present invention is a specific flow chart of the process of determining the distance between the steam nozzle and the drying fabric in the wool knitted fabric production process based on data monitoring in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0023] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, they are respectively an overall flow chart of a wool knitted fabric production process based on data monitoring, a logic flow chart, a specific flow chart of a process for determining the air supply frequency of a fan in a dryer, and a specific flow chart of a process for determining the distance between a steam nozzle and a drying fabric. A wool knitted fabric production process based on data monitoring of the present invention comprises: Step S1, spinning and weaving the treated wool fibers in sequence to output a semi-finished knitted fabric; Step S2, drying, rearranging and combining wool fibers, and post-processing the semi-finished knitted fabric in sequence to output a finished wool knitted fabric; Step S3, obtaining the number of damaged points in several batches of semi-finished knitted fabrics detected by the visual sensor; Step S4, determining the production stability of the knitted fabric based on the variance of the number of damaged points in the semi-finished knitted fabric; Step S5, if it is determined that the production stability does not meet the requirements, then determining the yarn feeding rate of the knitting process or determining the processing effectiveness of the wool knitted fabric based on the variance of the number of damaged points in the semi-finished knitted fabric and the temperature increase rate of the dryer; Step S6, if the processing effectiveness does not meet the requirements, the air supply frequency of the fan in the dryer is determined or the distance between the steam nozzle and the drying fabric is determined based on the average humidity of the air in the steam setting machine; The process of rearranging and combining the wool fibers is to use the steam setting machine to send the dried wool fibers into a steam environment for setting.

[0025] Specifically, semi-finished knitted fabrics are soft, have clear textures, and have tight stitches.

[0026] Specifically, dry fabrics are fabrics with a dry surface, clear texture, and tight stitches.

[0027] Specifically, the fabric to be finished is a fabric with a flat surface, a dry surface, and a smooth surface.

[0028] Specifically, wool knitted fabrics are fabrics with a smooth surface, dry surface, and neat fabric edges.

[0029] Specifically, the process of processing the wool fibers is: washing, shearing and mixing the wool fibers in sequence.

[0030] Specifically, the treated wool fibers are subjected to a spinning operation through a spinning machine to output yarn.

[0031] Specifically, the yarn is subjected to a knitting operation by a knitting machine.

[0032] Specifically, the semi-finished knitted fabric is dried by a drying machine.

[0033] Specifically, the post-processing operation includes sequentially pressing and trimming the knitted fabric to be finished output by the steam setting machine.

[0034] Specifically, the air supply frequency of the fan in the dryer is adjusted by changing the operating cycle of the fan through a frequency converter arranged inside the dryer.

[0035] Specifically, the distance between the steam nozzle and the drying fabric is adjusted by changing the telescopic length of an electric telescopic rod connected to the steam nozzle.

[0036] In implementation, the method of the present invention determines the yarn feeding rate of the weaving process according to the variance of the number of damaged points in the semi-finished knitted fabric. Since the knitting machine has been used for a long time, the knitting needles are worn, causing the knitting machine to be unable to operate normally, resulting in breakage or damage to the fabric. By reducing the yarn feeding rate of the weaving process, the friction between the knitting needles and the yarn is reduced, thereby reducing the probability of wear of the knitting needles. The air supply frequency of the fan in the dryer is determined according to the temperature rise rate of the dryer. During the drying process of the knitted fabric, some fabric fibers may be blown out and brought to the air outlet by the air supply system in the dryer. The air outlet may be blocked due to long-term accumulation. , which leads to problems with the temperature control of the dryer. By increasing the air supply frequency of the fan in the dryer, the impact of the temperature control problem of the dryer caused by the fabric fibers blocking the air outlet is reduced. The distance between the steam nozzle and the dry fabric is determined according to the average humidity of the air in the steam setting machine. Due to damage at the line joint connected to the control valve in the steam setting machine, the line contact is poor, resulting in a failure in the control circuit, which causes problems with the control valve, resulting in excessive humidity in the steam setting machine. By increasing the distance between the steam nozzle and the dry fabric, the accumulation of steam on the surface of the fabric is reduced, thereby reducing the humidity on the surface of the fabric, and achieving an improvement in the production stability of knitted fabrics.

[0037] Specifically, determining the production stability of the knitted fabric includes: The production stability of the knitted fabric is determined based on the variance of the number of damaged points in the semi-finished knitted fabric, where If the variance of the number of damaged points in the semi-finished knitted fabric is greater than a preset first variance, it is determined that the production stability of the knitted fabric does not meet the requirements.

[0038] Specifically, determining the yarn feeding rate of the weaving process includes, Comparing the variance of the number of damaged points in the semi-finished knitted fabric with the preset first variance and the preset second variance respectively; If the variance of the number of damaged points in the semi-finished knitted fabric is greater than the preset second variance, the yarn feeding rate of the knitting process is reduced.

[0039] It can be understood that the three intervals corresponding to the preset first variance and the preset second variance correspond to three situations respectively: The first interval is when the variance of the number of damaged points in the semi-finished knitted fabric is greater than the preset first variance, corresponding to the situation where the production stability of the knitted fabric meets the requirements; The second interval is that the variance of the number of damaged points in the semi-finished knitted fabric is greater than the preset first variance and less than or equal to the preset second variance, which corresponds to the situation that in the process of drying the knitted fabric, some fabric fibers may be blown out and brought to the air outlet by the air supply system in the dryer. After a long period of accumulation, the air outlet is blocked, thereby causing problems with the temperature control of the dryer; The third interval is that the variance of the number of damaged points in the semi-finished knitted fabric is greater than the preset second variance, which corresponds to the situation that the knitting needles of the knitting machine are worn out after a long period of use, causing the knitting machine to be unable to operate normally, resulting in the breakage or damage of the fabric.

[0040] Preferably, the preferred embodiment of the preset first variance is 2, and the preferred embodiment of the preset second variance is 4.

[0041] Specifically, the variance of the number of damaged points in the semi-finished knitted fabric is the variance of the number of damaged points in the semi-finished knitted fabric in several batches. The calculation method of the variance of the number of damaged points in the semi-finished knitted fabric is a conventional technical means well known to those skilled in the art. Therefore, the calculation process of the variance of the number of damaged points in the semi-finished knitted fabric will not be repeated here.

[0042] Specifically, the damaged point in the semi-finished knitted fabric means a location where yarn breakage, holes or stains occur in the semi-finished knitted fabric.

[0043] In implementation, the method of the present invention determines the production stability of knitted fabrics by setting a preset first variance and a preset second variance, thereby reducing the impact of reduced production accuracy of knitted fabrics due to inaccurate determination of the production stability of knitted fabrics, and further achieving improved production stability of knitted fabrics.

[0044] Specifically, the effectiveness of the treatment of the wool knitted fabric is determined, including: comparing the variance of the number of damaged points in the semi-finished knitted fabric with the preset first variance and the preset second variance respectively; Based on the determination result that the variance of the number of damage points in the semi-finished knitted fabric is greater than the preset first variance and less than or equal to the preset second variance and the temperature rise rate of the dryer, the treatment effectiveness of the wool knitted fabric is determined, wherein if the temperature rise rate is greater than the preset first rise rate, it is determined that the treatment effectiveness of the wool knitted fabric does not meet the requirements.

[0045] Specifically, the reduction range of the yarn feeding rate in the weaving process is determined by the difference between the variance of the number of damaged points in the semi-finished knitted fabric and a preset second variance.

[0046] Specifically, when the difference between the variance of the number of damaged points in the semi-finished knitted fabric and the preset second variance is within 2, the yarn feeding rate of the weaving process is reduced to 0.9 times of the original value; when the difference between the variance of the number of damaged points in the semi-finished knitted fabric and the preset second variance exceeds 2, on the basis of being reduced to 0.9 times of the original value, the yarn feeding rate of the weaving process is reduced by 120 SPM for every increase exceeding 1. For example, the difference between the variance of the number of damaged points in the semi-finished knitted fabric and the preset second variance is 4, the current yarn feeding rate of the weaving process is 800 SPM, and the reduced yarn feeding rate of the weaving process is 800×0.9-120×2=480 SPM.

[0047] Specifically, SPM is the unit of yarn feeding rate in the knitting process, which means the number of knitting needles per minute.

[0048] In implementation, the method of the present invention determines the yarn feeding rate of the weaving process by setting a preset first variance and a preset second variance. Since the knitting machine has been used for a long time, the knitting needles are worn, causing the knitting machine to be unable to operate normally, resulting in breakage or damage to the fabric. By reducing the yarn feeding rate of the weaving process, the friction between the knitting needles and the yarn is reduced, thereby reducing the probability of wear of the knitting needles, further achieving improved production stability of knitted fabrics.

[0049] Specifically, determining the air supply frequency of the fan in the dryer according to the temperature increase rate of the dryer includes: Obtain the temperature of the dryer at each time detected by the temperature sensor, and calculate the temperature increase rate of the dryer; Comparing the temperature increase rate of the dryer with a preset first increase rate and a preset second increase rate respectively; If the temperature increase rate of the dryer is greater than the preset first increase rate and less than or equal to the preset second increase rate, reducing the air supply frequency of the fan in the dryer; If the temperature increase rate of the drying machine is greater than the preset second increase rate, the operation stability of the steam setting machine is judged in combination with the average humidity of the air in the steam setting machine to determine the distance between the steam nozzle and the drying fabric.

[0050] It can be understood that the three intervals corresponding to the preset first increasing rate and the preset second increasing rate correspond to three situations respectively: The first interval is when the temperature increase rate of the dryer is less than or equal to the preset first increase rate, corresponding to the situation where the treatment effectiveness of the wool knitted fabric meets the requirements; The second interval is when the temperature increase rate of the dryer is greater than the preset first increase rate and less than or equal to the preset second increase rate. This corresponds to the situation that in the process of drying the knitted fabric, some fabric fibers may be blown out and brought to the air outlet by the air supply system in the dryer. After a long period of accumulation, the air outlet is blocked, thereby causing problems in the temperature control of the dryer. The third interval is that the temperature rise rate of the dryer is greater than the preset second rise rate, corresponding to the line joint connected to the control valve in the steam setting machine is damaged, resulting in poor line contact, causing failure of the control circuit, causing problems with the control valve, and thus causing excessive humidity in the steam setting machine.

[0051] Preferably, the first temperature increase rate is preset to be 3° C. / min, and the second temperature increase rate is preset to be 5° C. / min.

[0052] In implementation, the method of the present invention determines the treatment effectiveness of wool knitted fabrics by setting a preset first increase rate and a preset second increase rate, thereby reducing the impact of decreased production stability of knitted fabrics due to inaccurate determination of the treatment effectiveness of wool knitted fabrics, and further achieving improved production stability of knitted fabrics.

[0053] Specifically, the temperature increase rate of the dryer is the ratio of the difference between the temperature of the dryer at the end of the unit time and the temperature of the dryer at the beginning of the unit time to the duration of the unit time.

[0054] Specifically, the reduction range of the air supply frequency of the fan in the dryer is determined by the difference between the temperature increase rate of the dryer and a preset first increase rate.

[0055] Specifically, when the difference between the temperature increase rate of the dryer and the preset first increase rate is within 3°C / min, the air supply frequency of the fan in the dryer is reduced to 0.95 times the original value; when the difference between the temperature increase rate of the dryer and the preset first increase rate exceeds 3°C / min, on the basis of being reduced to 0.95 times the original value, the air supply frequency of the fan in the dryer is reduced by 200m / min for every 1°C / min exceeding the original value. 3 / h, for example, the difference between the temperature increase rate of the dryer and the preset first increase rate is 5°C / min, and the current air supply frequency of the fan in the dryer is 1200m 3 / h, the air supply frequency of the fan in the dryer after reduction is 1200×0.95-200×2=740m 3 / h.

[0056] In implementation, the method of the present invention determines the air supply frequency of the fan in the dryer by setting a preset first increase rate and a preset second increase rate. During the drying process of knitted fabrics, some fabric fibers may be blown out and brought to the air outlet by the air supply system in the dryer. After a long period of accumulation, the air outlet may be blocked, thereby causing problems with the temperature control of the dryer. By increasing the air supply frequency of the fan in the dryer, the impact of the temperature control problem of the dryer caused by the fabric fibers blocking the air outlet is reduced, thereby further achieving the improvement of the production stability of knitted fabrics.

[0057] Specifically, determining the distance between the steam nozzle and the drying fabric includes: Acquire the humidity of the air in the steam setting machine during several setting cycles detected by the humidity sensor, and calculate the average humidity of the air in the steam setting machine; comparing the average humidity of the air in the steam setting machine with a preset humidity; If the average humidity of the air in the steam setting machine is greater than the preset humidity, it is determined that the operating stability of the steam setting machine does not meet the requirements, and the distance between the steam nozzle and the drying fabric is increased.

[0058] It can be understood that the two intervals corresponding to the preset humidity correspond to two situations: The first interval is when the average humidity of the air in the steam setting machine is less than or equal to the preset humidity, corresponding to the situation where the operating stability of the steam setting machine meets the requirements; The second interval is when the average humidity of the air in the steam setting machine is greater than the preset humidity. The corresponding line joint connected to the control valve in the steam setting machine is damaged, resulting in poor line contact, failure of the control circuit, and problems with the control valve, which in turn causes excessive humidity in the steam setting machine.

[0059] Preferably, the preset humidity is 75%.

[0060] Specifically, the humidity of the air in the steam setting machine is the relative humidity.

[0061] Specifically, the average humidity of the air in the steam setting machine is the ratio of the total humidity of the air in the steam setting machine in a number of setting cycles to the number of setting cycles.

[0062] In implementation, the method of the present invention determines the operating stability of the steam setting machine by setting a preset humidity, thereby reducing the impact of the decreased production stability of the knitted fabric due to inaccurate determination of the operating stability of the steam setting machine, and further achieving an improvement in the production stability of the knitted fabric.

[0063] Specifically, the increase range of the distance between the steam nozzle and the drying fabric is determined by the difference between the average humidity of the air in the steam setting machine and the preset humidity.

[0064] Specifically, when the difference between the average humidity of the air in the steam setting machine and the preset humidity is within 20%, the distance between the steam nozzle and the dry fabric is increased to 1.2 times the original value; when the difference between the average humidity of the air in the steam setting machine and the preset humidity exceeds 20%, on the basis of being increased to 1.2 times the original value, the distance between the steam nozzle and the dry fabric is increased by 2mm for every 5% exceeding the original value. For example, the difference between the average humidity of the air in the steam setting machine and the preset humidity is 30%, the current distance between the steam nozzle and the dry fabric is 25mm, and the increased distance between the steam nozzle and the dry fabric is 25×1.2+2×2=34mm.

[0065] In implementation, the method of the present invention determines the distance between the steam nozzle and the dry fabric by setting a preset humidity. Due to damage at the line joint connected to the control valve in the steam setting machine, poor line contact occurs, resulting in a malfunction of the control circuit and a problem with the control valve, which causes the humidity of the steam setting machine to be excessive. By increasing the distance between the steam nozzle and the dry fabric, the accumulation of steam on the surface of the fabric is reduced, thereby further achieving improved production stability for knitted fabrics.

[0066] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A wool knitted fabric production process based on data monitoring, characterized in that: include: The treated wool fibers are sequentially subjected to spinning and weaving operations to output semi-finished knitted fabrics; The semi-finished knitted fabric is sequentially dried, wool fibers are rearranged and post-processed to output a finished wool knitted fabric; Obtain the number of damaged points in semi-finished knitted fabrics within several batches detected by the visual sensor; determining the production stability of the knitted fabric based on the variance of the number of damaged points in the semi-finished knitted fabric; If it is determined that the production stability does not meet the requirements, the yarn feeding rate of the knitting process is determined or the processing effectiveness of the wool knitted fabric is determined based on the variance of the number of damaged points in the semi-finished knitted fabric and the temperature increase rate of the dryer; If the treatment effectiveness does not meet the requirements, the air supply frequency of the fan in the dryer is determined or the distance between the steam nozzle and the drying fabric is determined based on the average humidity of the air in the steam setting machine; The process of rearranging and combining the wool fibers is to use the steam setting machine to send the dried wool fibers into a steam environment for setting.

2. The wool knitted fabric production process based on data monitoring according to claim 1 is characterized in that: Determining the production stability of the knitted fabric, including: The production stability of the knitted fabric is determined based on the variance of the number of damaged points in the semi-finished knitted fabric, where If the variance of the number of damaged points in the semi-finished knitted fabric is greater than a preset first variance, it is determined that the production stability of the knitted fabric does not meet the requirements.

3. The wool knitted fabric production process based on data monitoring according to claim 2 is characterized in that: Determining the yarn feed rate of the knitting process, comprising, Comparing the variance of the number of damaged points in the semi-finished knitted fabric with the preset first variance and the preset second variance respectively; If the variance of the number of damaged points in the semi-finished knitted fabric is greater than the preset second variance, the yarn feeding rate of the knitting process is reduced.

4. The wool knitted fabric production process based on data monitoring according to claim 2 is characterized in that: Determine the effectiveness of the treatment on the wool knitted fabric, including: comparing the variance of the number of damaged points in the semi-finished knitted fabric with the preset first variance and the preset second variance respectively; Based on the determination result that the variance of the number of damage points in the semi-finished knitted fabric is greater than the preset first variance and less than or equal to the preset second variance and the temperature rise rate of the dryer, the treatment effectiveness of the wool knitted fabric is determined, wherein if the temperature rise rate is greater than the preset first rise rate, it is determined that the treatment effectiveness of the wool knitted fabric does not meet the requirements.

5. The wool knitted fabric production process based on data monitoring according to claim 3 is characterized in that: The reduction range of the yarn feeding rate in the knitting process is determined by the difference between the variance of the number of damaged points in the semi-finished knitted fabric and a preset second variance.

6. The wool knitted fabric production process based on data monitoring according to claim 4 is characterized in that: Determining the air supply frequency of the fan in the dryer according to the temperature increase rate of the dryer includes: Comparing the temperature increase rate of the dryer with a preset first increase rate and a preset second increase rate respectively; If the temperature increase rate of the dryer is greater than the preset first increase rate and less than or equal to the preset second increase rate, reducing the air supply frequency of the fan in the dryer; If the temperature increase rate of the drying machine is greater than the preset second increase rate, the operation stability of the steam setting machine is judged in combination with the average humidity of the air in the steam setting machine to determine the distance between the steam nozzle and the drying fabric.

7. The wool knitted fabric production process based on data monitoring according to claim 6 is characterized in that: The temperature increase rate of the dryer is the ratio of the difference between the temperature of the dryer at the end of the unit time and the temperature of the dryer at the beginning of the unit time to the duration of the unit time.

8. The wool knitted fabric production process based on data monitoring according to claim 7 is characterized in that: The reduction range of the air supply frequency of the fan in the dryer is determined by the difference between the temperature increase rate of the dryer and a preset first increase rate.

9. The wool knitted fabric production process based on data monitoring according to claim 8, characterized in that: Determining the distance between the steam nozzle and the drying fabric includes: Compare the average humidity of the air in the steam setting machine with the preset humidity; If the average humidity of the air in the steam setting machine is greater than the preset humidity, it is determined that the operating stability of the steam setting machine does not meet the requirements, and the distance between the steam nozzle and the drying fabric is increased.

10. The wool knitted fabric production process based on data monitoring according to claim 9, characterized in that: The increase range of the distance between the steam nozzle and the drying fabric is determined by the difference between the average humidity of the air in the steam setting machine and the preset humidity.

Images