CN100393928C - Method for setting offset setting value of warp winding device and warp winding device - Google Patents
Method for setting offset setting value of warp winding device and warp winding device Download PDFInfo
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- CN100393928C CN100393928C CNB2003101245188A CN200310124518A CN100393928C CN 100393928 C CN100393928 C CN 100393928C CN B2003101245188 A CNB2003101245188 A CN B2003101245188A CN 200310124518 A CN200310124518 A CN 200310124518A CN 100393928 C CN100393928 C CN 100393928C
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H13/00—Details of machines of the preceding groups
- D02H13/22—Tensioning devices
- D02H13/26—Tensioning devices for threads in warp form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/10—Tension devices
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H13/00—Details of machines of the preceding groups
- D02H13/02—Stop motions
- D02H13/04—Stop motions responsive to breakage, slackness, or excessive tension of threads, with detectors for individual threads or small groups of threads
- D02H13/08—Stop motions responsive to breakage, slackness, or excessive tension of threads, with detectors for individual threads or small groups of threads electrical
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H13/00—Details of machines of the preceding groups
- D02H13/12—Variable-speed driving mechanisms
- D02H13/14—Variable-speed driving mechanisms controlled automatically by tension in the warp
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H7/00—Combined warping and beaming machines
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Warping, Beaming, Or Leasing (AREA)
- Winding Filamentary Materials (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
本发明提供一种经纱卷取装置,通过将张紧辊的作用力作用于从经轴架引出的经纱片上并以所需的卷取张力将其卷取在卷取轴上,有效且正确地设定张紧辊的赋于转矩、以形成所需的卷取张力,并能实行以下两个工序、即在卷取运转开始之前,将偏置设定值临时设定成规定的值,使卷取辊旋转并通过所述张力传感器对经纱的总张力进行检测的第1工序;以及将从卷取张力设定值与所述规定值的加算结果中减去所述经纱总张力后的值、作为所述卷取运转用的偏置设定值来进行设定的第2工序。
The present invention provides a warp yarn take-up device, by applying the force of the tension roller to the warp yarn sheet drawn from the creel and winding it on the take-up shaft with the required take-up tension, effectively and correctly Set the imparting torque of the tension roller to form the required winding tension, and implement the following two processes, that is, temporarily set the offset setting value to a specified value before the start of the winding operation, The first process of rotating the take-up roller and detecting the total tension of the warp yarn by the tension sensor; value, and the second step of setting as the offset setting value for the above-mentioned winding operation.
Description
技术领域 technical field
本发明,是涉及纤维工业的整经机等中、通过使张紧辊的作用力作用于从经轴架引出的经纱片并以所需的卷取张力将其卷取在卷取轴上的经纱卷取装置的技术,更具体地是涉及对作用于经纱片的张紧辊的作用力进行设定的技术。The present invention relates to a warp sheet drawn out from a creel by applying the force of a tension roller to wind it up on a take-up shaft with a required take-up tension in warpers and the like in the fiber industry. The technology of the warp yarn winding device relates more specifically to the technology of setting the force of the tension roller acting on the warp yarn sheet.
背景技术 Background technique
整经机和上浆机等的经纱准备机械,通常是从安装于经轴架的多个供纱体中将多个纱线分别经由张力器一齐引出并在合体成片状后、使其与张紧辊的周面接触,然后卷取在卷取轴上,从而制成经轴的结构。对于这种经纱卷取装置,例如日本专利特许2696550号公报(第1页~第2页、图4)所示。更具体地讲,在张紧辊上,连接着使其旋转方向的赋予(保持)转矩产生的辅助电机,并且,由辅助电机、设定上述赋于转矩的张力设定器和张力控制器构成了转矩控制装置。卷取轴以规定的卷取速度进行旋转驱动。若将相对经纱片的转矩的赋于方向形成与张力辊的旋转方向相反的方向,则经由张力辊引出的纱片的张力相对来自张力器的引出张力、以与赋于转矩对应的规定量进行增加,又,若使赋于转矩的方向与张力辊的旋转方向一致,则所述纱片的张力相对来自张力器的引出张力、以与赋于转矩对应的规定量进行减少,这样,通过张力设定器对赋于转矩的方向及大小进行调节,就可以任意地设定纱片的张力、即卷取轴的卷取张力。In warp preparation machines such as warpers and sizing machines, a plurality of yarns are drawn out from a plurality of yarn suppliers installed on the creel through a tensioner, and after being combined into a sheet, they are combined with a sheet. The peripheral surfaces of the tight rolls are in contact, and then wound up on the take-up shaft, thus making the structure of the warp beam. Such a warp winding device is shown in, for example, Japanese Patent No. 2696550 (
经轴,除了可直接作为织机用经轴、使用于织造工序中以外,还由于可经由整经工序、上浆工序、将多个经轴(即分条织轴)卷取在1个织轴上、作成织机用经轴的并轴工序等的经纱准备工序而使用于织造工序,因此,为了使下一道工序中的经纱准备机械或织机的织机运转效率更加稳定化,要求维持有规定的卷取硬度,换言之,将卷取在卷取轴上时的经纱片的卷取张力维持在最佳的值上。另一方面,将经纱片卷取在卷取轴上时的卷取张力,从相对于来自经轴架的引出张力与来自张紧辊的赋于张力的加算结果、保持均衡的关系出发,为了以所需的卷取张力进行卷取,通过计算求出来自经轴架的引出张力来设定出赋于转矩的初期值,为了在卷取开始后形成所需的卷取张力,必须对来自张紧辊的赋于张力进行调节。In addition to being directly used as a warp beam for looms and used in the weaving process, warp beams can also be wound up on a single warp beam through the warping process and sizing process. It is used in the warp preparation process such as the paralleling process of making the warp beam for the loom, and is used in the weaving process. Therefore, in order to stabilize the loom operation efficiency of the warp preparation machine in the next process or the loom, it is required to maintain The predetermined winding hardness, in other words, maintains the winding tension of the warp yarn sheet at the optimum value when it is wound on the winding shaft. On the other hand, the take-up tension when the warp sheet is wound on the take-up shaft is based on the balance of the addition result of the drawing-out tension from the creel and the tension applied from the tension roll. Coil with the required take-up tension, and set the initial value of the torque by calculating the pull-out tension from the creel. In order to form the required take-up tension after the start of winding, it is necessary to The tension applied from the tension roller is adjusted.
对于设置于经轴架的张力器,例如象杆式张力器和盘式张力器之类,一般使用的是通过调节纱线的弯曲量以及构件对纱线的压接来调节引出张力的机械式的张力器。因此,虽然也有考虑采用从相对张力器的弯曲量以及压接的设定值中推定引出张力的方法,但对于张力器的接触性因纱线种类的不同而有所差异,其结果是即使相同地进行设定、也会因纱线种类而使赋于张力不同。又,对于来自经轴架的引出张力,除了来自上述张力器的赋于张力之外,还有来自供纱体的引出张力(松开阻力)的作用,难以正确地算出经纱的总引出张力。由于这样的原因,在正规的卷取运转开始之前,为了使卷取张力达到所需的卷取张力而调节张紧辊的赋于转矩的设定作业是在试行错误的情况下进行的。为了这一设定作业,需要卷取某种长度的经纱片,在设定作业期间,经纱片在卷取张力与所需的值不同的状态下进行卷取,其结果是,因卷取张力的过于不足而引起卷取姿势的紊乱、即发生所谓的织轴裂纹、或者不能作成良好品质的经轴。这种经轴品质的低下是以下列的形式出现,例如,在上述经纱准备工序中,随着邻接的经纱相互间的缠绕而产生的断纱等的经纱品质异常,及在织造工序中因经纱开口不良引起的断纬自停和多次发生断经等的织机生产效率下降的现象。这样,在设定作业期间被卷取的经纱片,因上述织机的运转中所造成的障碍造成不能利用而被废弃,故从有效利用经纱的观点出发也存在着问题。For the tensioner installed on the creel, such as the rod tensioner and the disc tensioner, it is generally used to adjust the mechanical tension by adjusting the bending amount of the yarn and the crimping of the member to the yarn. tensioner. Therefore, although it is considered to use the method of estimating the drawing tension from the bending amount of the relative tensioner and the set value of the crimping, the contact with the tensioner differs depending on the type of yarn, and the result is that even if the same It can also be set differently depending on the type of yarn. Also, for the drawing-out tension from the creel, in addition to the tension imparted by the above-mentioned tensioner, there is also the effect of the drawing-out tension (loosening resistance) from the yarn supply body, and it is difficult to accurately calculate the total drawing-out tension of the warp. For this reason, before the normal coiling operation starts, the setting operation of adjusting the torque imparted to the tension roller in order to make the coiling tension reach a desired coiling tension is performed by trial and error. For this setting operation, it is necessary to wind a warp sheet of a certain length. During the setting operation, the warp sheet is wound under a state where the winding tension is different from the required value. As a result, due to the winding tension If it is too insufficient, the winding posture will be disturbed, that is, so-called beam cracks will occur, or a warp beam of good quality will not be produced. The low quality of this warp beam appears in the following forms, for example, in the above-mentioned warp preparation process, the warp quality abnormalities such as yarn breakage due to the mutual entanglement of adjacent warp yarns, and warp yarn quality abnormalities in the weaving process. The production efficiency of looms such as weft breakage self-stop due to poor shedding and warp breakage frequently occur. Like this, the warp yarn piece that is wound up during setting operation, because the obstacle that causes in the operation of above-mentioned loom causes and is discarded, so also there is problem from the viewpoint of effectively utilizing warp yarn.
发明内容 Contents of the invention
鉴于上述的问题,本发明目的在于,在通过将张紧辊的作用力作用于从经轴架引出的经纱片并以所需的卷取张力将其卷取在卷取轴上的经纱卷取装置中,提供一种通过有效且正确地设定张紧辊的赋于转矩、以形成所需的卷取张力的经纱卷取装置。In view of the above-mentioned problems, the object of the present invention is to realize the warp yarn winding process by applying the force of the tension roller to the warp yarn sheet drawn out from the creel and winding it on the take-up shaft with the required winding tension. In the device, there is provided a warp yarn winding device for forming a desired winding tension by effectively and accurately setting the imparting torque of the tension roller.
为此,本发明的经纱卷取装置,具有:在每个供纱体上具有张力器的经轴架:张紧辊;设置于张紧辊下游侧的张力辊;以及使卷取轴旋转的卷取控制部,在所述张力辊上设置有张力传感器,在所述张紧辊上连接着发生与偏置设定值对应的转矩的辅助电机,在卷取运转中,所述卷取控制部使卷取轴进行所述旋转,通过将与卷取运转用的偏置设定值对应的转矩作用于张紧辊,将从经轴架引出的、经由张紧辊和张力辊的多个经纱以所需的卷取张力卷取在卷取轴上,其第1要点在于:实行以下两种工序,即在卷取运转开始之前,将偏置设定值临时设定成规定的值,并使卷取轴旋转,通过所述张力传感器对经纱的总张力进行检测的第1工序;以及将从卷取张力设定值与所述规定的值的加算结果中减去所述经纱总张力后的值,作为所述卷取运转用的偏置设定值来进行设定的第2工序。For this reason, the warp winding device of the present invention has: a warp creel having a tensioner on each yarn supply body; a tension roller; a tension roller arranged on the downstream side of the tension roller; The winding control part is provided with a tension sensor on the tension roller, and an auxiliary motor that generates a torque corresponding to the bias setting value is connected to the tension roller. During the winding operation, the winding The control unit causes the winding shaft to rotate as described above, and by applying a torque corresponding to the offset setting value for winding operation to the tension roller, A plurality of warp yarns are wound on the winding shaft with the desired winding tension. The first point is to execute the following two processes, that is, to temporarily set the offset setting value to a predetermined value before starting the winding operation. value, and rotate the winding shaft to detect the total tension of the warp yarn by the tension sensor; and subtract the warp yarn from the addition result of the winding tension setting value and the specified value The second step of setting the value after the total tension as the offset setting value for the coiling operation.
根据上述的第1要点,由于在经纱卷取装置的运转开始之前,通过实行第1工序,经纱一边接受来自经轴架的引出张力和由临时设定的偏置设定值形成的来自张紧辊的作用力、一边不断地被卷取在卷取轴上,因此,在张力辊上,可检测出在该两种合力作用的状态下的经纱的总张力。其次,由于通过实行第2工序,对于卷取张力设定值与临时设定成规定的值的偏置设定值的加算结果,进行减去所述第1工序中检测出的经纱张力的运算,将该运算结果作为卷取运转用的偏置设定值来进行设定,因此,这种运算的卷取运转用的偏置设定值,能反映来自经轴架的引出张力以及卷取运转中的卷取张力设定值,即使其后开始卷取运转,也能立即成为由设定的卷取张力可进行卷取的值。这样,即使其后开始卷取运转,也能利用随着所述偏置设定值形成的来自张紧辊的适当的作用力,以与卷取张力设定值大致对应的卷取张力将经纱卷取在卷取轴上。According to the above-mentioned first point, before the operation of the warp winding device is started, by performing the first step, the warp receives the pull-out tension from the creel and the self-tensioning force formed by the temporarily set offset setting value. The active force of the roller is continuously wound on the take-up shaft. Therefore, on the tension roller, the total tension of the warp yarn under the state where the two combined forces act can be detected. Next, by executing the second step, the warp tension detected in the first step is subtracted from the result of addition of the winding tension set value and the offset set value temporarily set to a predetermined value. , and set the calculation result as the offset setting value for coiling operation. Therefore, the offset setting value for coiling operation in this calculation can reflect the drawing tension from the creel and the winding tension. The set value of winding tension during operation, even if the winding operation is started later, it can immediately become a value that can be wound with the set winding tension. In this way, even if the winding operation is started thereafter, the warp yarn can be wound with a winding tension approximately corresponding to the winding tension setting value by using an appropriate force from the tension roller formed along with the bias setting value. Coiled on the take-up shaft.
又,本发明的经纱卷取装置,具有:在每个供纱体上具有张力器的经轴架;张紧辊;设置于张紧辊下游侧的张力辊;以及使卷取轴旋转的卷取控制部,在所述张力辊上设置有张力传感器,在所述张紧辊上连接着发生与偏置设定值对应的转矩的辅助电机,并且由所述辅助电机、输出卷取运转用的偏置设定值信号的偏置设定器、以及将与偏置设定值对应的转矩指令值向所述辅助电机输出的控制器构成转矩指令部,在卷取运转中,所述卷取控制部使卷取轴进行所述旋转,所述转矩指令部按照卷取运转用的偏置设定值输出转矩指令值,通过使与其对应的转矩作用于张紧辊,将从经轴架引出的、经由张紧辊和张力辊的多个经纱以所需的卷取张力卷取在卷取轴上,其第2要点在于:在所述偏置设定器中,输入有偏置设定指令信号、由所述张力传感器检测出的经纱张力信号、与偏置设定时对应的偏置设定值以及卷取张力设定值,在所述偏置设定指令信号的输入时,所述控制器按照所述偏置设定时的偏置设定值输出转矩指令值,同时所述卷取控制部使卷取轴旋转,所述偏置设定器,将从卷取张力设定值与偏置设定时用的偏置设定值的加算结果中减去来自所述张力传感器的经纱总张力后的值,决定作为卷取运转中用的偏置设定值而输出。Also, the warp yarn winding device of the present invention has: a creel with a tensioner on each yarn supply body; a tension roller; a tension roller arranged on the downstream side of the tension roller; Take the control unit, a tension sensor is installed on the tension roller, and an auxiliary motor that generates a torque corresponding to the bias setting value is connected to the tension roller, and the auxiliary motor and the output coiling operation A bias setter for a bias set value signal for use, and a controller for outputting a torque command value corresponding to the bias set value to the auxiliary motor constitute a torque command unit. During winding operation, The take-up control unit rotates the take-up shaft, the torque command unit outputs a torque command value in accordance with a set offset value for the take-up operation, and acts on the tension roller by causing a corresponding torque to act on the tension roller. , the plurality of warp yarns drawn from the creel through the tension roller and the tension roller are wound on the take-up shaft with the required take-up tension, and the second point is that: in the bias setter , the bias setting command signal, the warp tension signal detected by the tension sensor, the bias setting value corresponding to the bias setting and the winding tension setting value are input, and the bias setting When a command signal is input, the controller outputs a torque command value according to the bias set value at the time of the bias setting, and at the same time, the winding control unit rotates the winding shaft, and the bias setter , the value obtained by subtracting the total warp tension from the tension sensor from the addition result of the winding tension setting value and the offset setting value used for offset setting is determined as the offset value used in winding operation. Set the set value and output.
若采用上述第2要点,则可更加具体地实现前述第1要点的发明。并且,由于高效率地实行了以往作业者进行的卷取运转用的偏置设定值的设定作业,因此,与以往相比,通过使卷取张力不同地进行卷取,可进一步缩短以往被废弃的经纱片的长度,可更加有效地利用经纱。According to the above-mentioned second point, the invention of the above-mentioned first point can be realized more concretely. Moreover, since the setting work of the offset setting value for the coiling operation performed by the conventional operator is efficiently carried out, compared with the conventional ones, the coiling can be performed with different coiling tensions, and the conventional coiling time can be further shortened. The length of the discarded warp yarn can be used more effectively.
在上述2个发明中,在设定偏置设定值时,为了发生来自张紧辊的作用力而临时设定的偏置设定值(偏置设定时用的偏置设定值),也可以设定成从以往的经验中得到的值,可以设定成比假定的设定值小的值、例如假定值的1/2以下,最好是,可以设定成作用力实际上不发生的值(包括零或与其相近的值)。若采用后者,可避免因偏置设定值与相对经纱的张紧辊的实际作用力之间发生的偏差而产生设定出异常的值的危险性,可始终决定出正确的偏置设定值。In the above two inventions, when setting the offset setting value, the offset setting value (offset setting value for offset setting) temporarily set in order to generate the force from the tension roller , It can also be set to a value obtained from past experience, and can be set to a value smaller than the assumed set value, such as 1/2 or less of the assumed value. Preferably, it can be set so that the force is actually Values that do not occur (including zero or values close to it). If the latter is used, the danger of setting an abnormal value due to the deviation between the offset setting value and the actual force of the tension roller against the warp yarn can be avoided, and the correct offset setting can always be determined. Value.
对于决定这种卷取运转用的偏置设定值的偏置设定器,最好是,可具有:从所述卷取张力设定值与所述偏置设定时用的偏置设定值的加算结果中减去所述经纱的总张力值的运算器、以及将其运算结果决定作为卷取运转用的偏置设定值进行输出的输出装置。又,最好是,在偏置设定器中,可输入与经纱走行速度对应的机械损耗修正值,在输入所述偏置设定指令信号时,也可以构成:所述偏置设定器,将所述运算结果中加算了机械损耗修正值后的运算结果,决定作为所述卷取运转用的偏置设定值进行输出。这样,因可设定出补偿了张紧辊驱动系统的机械损耗部分的精度更高的偏置设定值,故可进一步提高卷取张力的精度、并可进一步提高经轴的品质。Preferably, the offset setter for determining the offset set value for such a coiling operation may include: An arithmetic unit for subtracting the total tension value of the warp yarn from the addition result of the fixed value, and an output device for determining the calculation result as an offset setting value for winding operation and outputting it. Also, preferably, in the bias setter, the mechanical loss correction value corresponding to the warp running speed can be input, and when the bias setting command signal is input, the bias setter can also be constituted: A calculation result obtained by adding a mechanical loss correction value to the calculation result is determined as an offset setting value for the coiling operation and output. In this way, since a more accurate offset setting value can be set that compensates for the mechanical loss of the tension roller drive system, the accuracy of the winding tension can be further improved, and the quality of the warp beam can be further improved.
又,既可以将决定这种卷取运转用的偏置设定值时的经纱张力的检测时期,设定在经纱走行速度处于一定速度状态之时,也可以设定在经纱走行速度处于加速状态或减速状态之时。对于后者,可产生张紧辊和与其连接的辅助电机等的惯性力的作用,其结果是,在上述加速或减速中,由上述偏置设定时输出的转矩指令值产生的转矩与作用于经纱的实际的作用转矩之间会发生偏差。更具体地讲,可认为,在经纱走行速度的加速时,由转矩指令值发生的转矩在张紧辊的加速中会消耗、或者在走行速度减速时,因张紧辊的减速而使过剩的作用力作用于经纱。这样,就有可能因这种偏差而造成算出不正确的卷取运转用的偏置设定值。为此,最好是,在所述卷取控制部中,设定进行经纱走行速度的加速或减速用的参数,同时在所述偏置设定器中,输入与经纱走行速度的加速或减速对应的加减速转矩补偿值,在所述偏置设定指令信号的输入时,所述卷取控制部按照前述设定的参数使卷取轴进行加速或减速旋转,所述偏置设定器,也可以将在所述运算结果中加算了与所述加速或减速对应的加减速转矩补偿值后的运算结果,决定作为所述卷取运转用的偏置设定值进行输出。这样,由于考虑了经纱走行速度的加速或减速中的张紧辊的惯性力的影响并通过对加减速转矩进行补偿,可获得不逊色于前者那样的、在一定速度状态的基础上算出的值(相同程度的精度)的卷取运转用的偏置设定值。Again, the detection timing of the warp tension when determining the offset set value for this winding operation can be set when the warp running speed is in a constant speed state, or it can be set when the warp running speed is in an accelerated state. or when decelerating. For the latter, the inertial force of the tension roller and the auxiliary motor connected to it can be produced. As a result, in the above-mentioned acceleration or deceleration, the torque generated by the torque command value output at the time of the above-mentioned bias setting Deviations can occur from the actual torque applied to the warp threads. More specifically, it can be considered that when the warp running speed is accelerated, the torque generated by the torque command value is consumed during the acceleration of the tension roller, or when the running speed is decelerated, the torque generated by the tension roller is decelerated. The excess force acts on the warp. Thus, there is a possibility that an incorrect offset setting value for the coiling operation may be calculated due to such a deviation. For this reason, it is preferable that in the winding control section, parameters for acceleration or deceleration of the warp running speed are set, and at the same time, parameters corresponding to the acceleration or deceleration of the warp running speed are input into the bias setter. For the corresponding acceleration and deceleration torque compensation value, when the bias setting command signal is input, the winding control part makes the winding shaft accelerate or decelerate according to the parameters set above, and the bias setting Alternatively, the calculation result obtained by adding an acceleration/deceleration torque compensation value corresponding to the acceleration or deceleration to the calculation result may be determined as the offset setting value for the winding operation and output. In this way, since the influence of the inertial force of the tension roller during the acceleration or deceleration of the warp running speed is considered and the acceleration and deceleration torque is compensated, it is not inferior to the former, which is calculated on the basis of a constant speed state. Value (same degree of accuracy) as the offset setting value for winding operation.
在上述2个发明中,在决定卷取运转用的偏置设定值之后,在卷取运转中,可以使与决定的偏置设定值对应的转矩始终作用于张紧辊,但最好是,还可以在卷取运转中对经纱张力进行检测并修正所述卷取运转用的偏置设定值,以维持规定的卷取张力。更具体地讲,在所述控制器中,输入所述卷取张力设定值以及来自所述张力传感器的经纱检测信号,并且,所述控制器,具有:输出对卷取张力设定值的张力偏差进行消除用的修正值信号的修正值信号发生器;以及将所述卷取运转用的偏置设定值与所述修正值进行加算、将其作为所述转矩指令值输出的加算电路,在卷取运转中,所述控制器,将与前述决定的卷取运转用的偏置设定值对应的转矩指令值,通过所述修正值信号发生器及加算电路进行修正,以消除卷取张力的偏差。这样,即使随着供纱体的消耗等而使来自经轴架的引出张力发生了变化,也可通过对预先设定的偏置设定值进行修正,以消除卷取张力的偏差,故在卷取运转中也能始终维持所需的卷取张力。In the above two inventions, after the offset setting value for the winding operation is determined, the torque corresponding to the determined offset setting value can always be applied to the tension roller during the winding operation. Preferably, the warp tension may be detected during the winding operation and the offset set value for the winding operation may be corrected so as to maintain a predetermined winding tension. More specifically, in the controller, the winding tension setting value and the warp detection signal from the tension sensor are input, and the controller has: an output of the winding tension setting value a correction value signal generator for a correction value signal for eliminating the tension deviation; and an addition that adds the correction value to the bias setting value for the coiling operation and outputs it as the torque command value circuit, during the coiling operation, the controller corrects the torque command value corresponding to the above-mentioned determined offset setting value for the coiling operation through the correction value signal generator and the addition circuit, so as to Eliminates deviations in take-up tension. In this way, even if the drawing-out tension from the creel changes with the consumption of the yarn supply body, etc., the deviation of the winding tension can be eliminated by correcting the preset offset setting value. The required winding tension can always be maintained during the winding operation.
又,在本发明中,决定卷取运转用的偏置设定值时,也可在来自张紧辊的作用力不作用于经纱的状态下进行设定,以取代前述的第1和第2要点那样的、将来自张紧辊的作用力作用于经纱的方法。更具体地讲,本发明的经纱卷取装置,具有:在每个供纱体上具有张力器的经轴架;张紧辊;设置于张紧辊下游侧的张力辊;以及使卷取轴旋转的卷取控制部,在所述张力辊上设置有张力传感器,在所述张紧辊上连接着发生与偏置设定值对应的转矩的辅助电机,在卷取运转中,所述卷取控制部使卷取轴进行所述旋转,通过将与卷取运转用的偏置设定值对应的转矩作用于张紧辊,将从经轴架引出的、经由张紧辊和张力辊的多个经纱以所需的卷取张力卷取在卷取轴上,其第3要点在于:实行以下两种工序,即在卷取运转开始之前、将所述张紧辊对于经纱的作用力设定成不起作用的状态,并使卷取轴旋转、通过所述张力传感器对经纱的总张力进行检测的第1工序;以及将从卷取张力设定值中减去所述经纱的总张力后的值,作为所述卷取运转用的偏置设定值来进行设定的第2工序。Also, in the present invention, when determining the offset setting value for winding operation, it is also possible to set it in a state where the active force from the tension roller does not act on the warp yarn, instead of the aforementioned first and second. As in the main point, the method of applying force from the tension roller to the warp. More specifically, the warp yarn take-up device of the present invention has: a warp creel having a tensioner on each yarn supply body; a tension roller; a tension roller arranged on the downstream side of the tension roller; and the take-up shaft The rotating take-up control unit is provided with a tension sensor on the tension roller, and an auxiliary motor that generates a torque corresponding to the bias setting value is connected to the tension roller. During the take-up operation, the The take-up control unit rotates the take-up shaft and acts on the take-up roller with a torque corresponding to the set bias value for the take-up operation, so that the tension roller and tension drawn out from the creel are drawn out from the creel. A plurality of warp yarns of the roll are wound on the take-up shaft with the required take-up tension. The third point is to implement the following two processes, that is, before the start of the winding operation, the action of the tension roller on the warp yarn The force is set to the state of inaction, and the first process of rotating the winding shaft and detecting the total tension of the warp yarn by the tension sensor; The second step of setting the value after the total tension as the offset setting value for the coiling operation.
作为将张紧辊的作用力设定成不作用于经纱的状态的具体方法,例如,除了将偏置设定动作时的转矩指令值电气地切离之外,还可考虑设定纱线路径等、以使辅助电机与张紧辊处于非机械连接的状态、或者使张紧辊不与经纱接触的方法。由此,与上述第1和第2要点中的、将决定偏置设定值时的临时的偏置设定值(偏置设定时用的偏置设定值)设定为零的场合一样,被检测的经纱的总张力成为来自张紧辊的作用力不作用于经纱的状态,只有来自经轴架的引出张力在起主要的作用。因此,这样运算的卷取运转用的偏置设定值,能反映来自经轴架的引出张力和卷取运转中的卷取张力设定值,即使在其后开始卷取运转,也可立即成为以设定的卷取张力进行卷取的值,因此,即使其后立即开始卷取运转,也能以大致与卷取张力设定值对应的卷取张力在卷取轴上进行卷取。另外,在采用将上述转矩指令值电气地切离的方法和解除与上述辅助电机的机械连接的方法时,当偏置设定时也处于经纱与张紧辊接触状态的场合,与上述第1和第2要点一样,在上述经纱走行速度的加速或减速时,也可进行与上述加减速转矩补偿和经纱走行速度对应的机械损耗补偿。As a specific method of setting the force of the tension roller so that it does not act on the warp yarn, for example, in addition to electrically disconnecting the torque command value during the bias setting operation, it is also possible to consider setting the yarn Path, etc., so that the auxiliary motor and the tension roller are in a state of non-mechanical connection, or the method of keeping the tension roller from contacting the warp yarn. Therefore, in the case of setting the temporary offset setting value (offset setting value for offset setting) to zero when determining the offset setting value in the first and second points above, Similarly, the detected total tension of the warp becomes the state where the active force from the tension roller does not act on the warp, and only the draw-out tension from the creel plays a major role. Therefore, the offset setting value for the winding operation calculated in this way can reflect the drawing tension from the creel and the winding tension setting value during the winding operation. Since the winding is performed at the set winding tension value, even if the winding operation is started immediately thereafter, the winding can be carried out on the winding shaft at the winding tension approximately corresponding to the winding tension setting value. In addition, when the method of electrically disconnecting the above-mentioned torque command value and the method of releasing the mechanical connection with the above-mentioned auxiliary motor are adopted, when the bias is set, the warp yarn is in contact with the tension roller. 1. As in
综上所述,根据本发明的第1要点,由于在经纱卷取装置的运转开始之前,通过实行第1工序,将偏置设定值临时设定成规定的值并通过使卷取轴旋转,在张力辊上,可在来自经轴架的引出张力与来自张紧辊的作用力的合力作用的状态下检测经纱的总张力。通过实行第2工序,将从卷取张力设定值与所述规定的值的加算结果中减去所述经纱总张力后的值,作为所述卷取运转用的偏置设定值来进行设定,因此,这种被设定的偏置设定值,能反映来自经轴架的引出张力以及卷取张力设定值,其后即使开始卷取运转,也能立即成为由设定的卷取张力可卷取的值。这样,其后即使立即开始了卷取运转,也能利用随着所述偏置设定值形成的来自张紧辊的适当的作用力,以与卷取张力设定值大致对应的卷取张力将经纱片卷取在卷取轴上。To sum up, according to the first gist of the present invention, before the operation of the warp winding device is started, by performing the first step, the offset setting value is temporarily set to a predetermined value and the winding shaft is rotated. , On the tension roller, the total tension of the warp yarn can be detected under the combined force of the drawing tension from the creel and the force from the tension roller. By performing the second step, the value obtained by subtracting the warp total tension from the addition result of the winding tension setting value and the predetermined value is used as the offset setting value for the winding operation. Therefore, this set offset setting value can reflect the drawing tension from the creel and the setting value of winding tension, and then even if the winding operation is started, it can immediately become the set value. Take-up tension value that can be taken up. In this way, even if the winding operation is started immediately thereafter, the winding tension approximately corresponding to the winding tension setting value can be adjusted by using the appropriate force from the tension roller formed according to the offset setting value. The warp sheet is wound up on a take-up shaft.
若采用上述第2要点,则可更加具体地实现前述第1要点的发明。并且,由于高效率地实行了以往作业者进行的偏置设定值的设定作业,因此,与以往相比,通过使卷取张力不同地进行卷取,可进一步抑制被废弃的长度,可更加有效地利用经纱片。According to the above-mentioned second point, the invention of the above-mentioned first point can be realized more concretely. In addition, since the setting operation of the offset setting value performed by the operator in the past is efficiently carried out, the length to be discarded can be further suppressed by winding with different winding tensions than before, and the More efficient use of warp sheets.
附图说明 Description of drawings
图1为表示本发明的经纱卷取装置整体的图。Fig. 1 is a diagram showing the whole of the warp winding device of the present invention.
图2为图1中的控制装置的内部方框图。FIG. 2 is an internal block diagram of the control device in FIG. 1 .
图3为图2的控制装置中的转矩指令部的内部方框图。Fig. 3 is an internal block diagram of a torque instruction unit in the control device of Fig. 2 .
图4为图2的控制装置中的偏置设定器的内部方框图。FIG. 4 is an internal block diagram of a bias setter in the control device of FIG. 2 .
具体实施方式 Detailed ways
下面,参照附图说明本发明的实施形态。图1表示在工厂内配置的经纱卷取装置10的整体。大体上讲,经纱卷取装置10,包括:载置有许多供纱体12的经轴架11;设置于经轴架前方的张紧辊18和设置于张紧辊18的经纱走行方向下游侧的张力辊20;以及对经纱片17进行卷取的卷取轴22。Embodiments of the present invention will be described below with reference to the drawings. Fig. 1 shows the whole of a
在经轴架11上,在上·下、左·右和前·后方向上并设有许多供纱体12,同时在各个供纱体上设置有张力器13。又,在经轴架11与配置在其前方的旋转自如的张紧辊18之间,配置有上下方向相互重合且分开的一对导辊15a、15b,另外,分别配置有与张紧辊18邻接的导辊16a、16b。从各供纱体12经由张力器13引出的经纱14,通过使一对导辊15a、15b合体为一、而成为经纱片17,被卷挂在导辊16a、张紧辊18、导辊16b上,其结果是在与张紧辊18的周面接触的同时、经由设置于其前方的张力辊20而转向地被引导至卷取轴22。On the beam creel 11, a plurality of
上述导辊15a、15b、16a、16b、张紧辊18、张力辊20以及卷取轴22,都是利用配置于经纱走行路径两侧的未图示的构架被旋转自如地支承着。张紧辊18与发生旋转转矩的辅助电机25连接着。又,在张力辊20与支承该构件的未图示的构架之间夹装有张力传感器21,张力传感器21将张力辊20受到的作用力、即经纱片17(经纱14)的总张力以电气信号的形式输出。卷取轴22与使其旋转驱动的卷取电机26以及检测其旋转速度的速度检测器28连接,同时设置有检测被卷取的经纱片卷径的卷径传感器27。这些各传感器以及各电机分别与控制经纱卷取装置10的控制装置30连接着。The guide rollers 15a, 15b, 16a, 16b, the tension roller 18, the
图2表示控制经纱卷取装置10的控制装置30的内部方框图。大体上讲,控制装置30,包括:控制卷取电机26的卷取控制部32;对辅助电机25的输出转矩作出指令的转矩指令部40;向各控制部输出动作指令信号的运转控制部60;以及对辅助电机25的偏置设定值动作时的转矩指令值作出指令的转矩指令电路65。FIG. 2 shows an internal block diagram of the
卷取控制部32,主要具有速度信号发生器35、卷径修正器36以及电流发生器38。速度信号发生器35根据后述的来自运转控制部60的信号,对由2个速度设定器33a、33b设定的速度设定值进行选择,将与传向经纱卷取装置的操作指令对应的速度指令信号v1输出至卷径修正器36。卷径修正器36,对于被输入的速度指令信号v1,修正到与来自卷径传感器27的卷径信号d相对应并形成使经纱片的纱线速度成为一定的状态,再将修正后的速度指令信号v2向夹装于与电流发生器38之间的加算点37一方的输入端子输出。在加算点37的另一方的输入端子上,反馈输入有来自与卷取电机26的输出轴连接的速度检测器28的速度检测信号v4,加算点37将与速度指令偏差对应的信号v3输出到电流发生器38。电流发生器38,是将与信号v3对应的电流输出用的公知的驱动电路。由此,在卷取控制部32中,构成了具有对速度指令信号v2可消除速度偏差功能的速度控制电路。这样,通过以与速度设定值对应的速度使卷取电机26进行旋转驱动,可从经轴架11以与速度设定值v1对应的速度将许多根经纱14一齐引出,并卷取在卷取轴22上。The winding
与此相对,转矩指令部40,具有:卷取张力设定器42、偏置设定器43、转矩信号发生部44和电流发生器45。在卷取张力设定器42上预先设定了对卷取运转中的卷取张力的设定值,与卷取张力设定值对应的卷取张力指令信号TS1分别分支地向偏置设定器43和转矩信号发生部44输入。又,在偏置设定器43中,除了来自张力传感器21的经纱张力信号T0之外,还可输入来自后述的运转控制部60的偏置设定指令信号S1,同时将作为其输出的卷取运转用的偏置设定值信号TS2向转矩信号发生部44供给。另一方面,在转矩信号发生部44中,除了可输入上述偏置设定值信号TS2、卷取张力值信号TS1之外,还可分支地输入来自运转控制部60的运转信号S2,并且也可分支地输入经纱张力信号T0和偏置设定指令信号S1。On the other hand, the
又,在转矩指令部40中,附设有在偏置设定动作时对辅助电机25输出转矩指令值的转矩指令电路65,在转矩指令电路65中,可分支地输入来自运转控制部60的偏置设定指令信号S1,并且与偏置设定动作时的偏置设定值TS4设定用的设定器64连接,作为其输出的转矩指令信号SC4向偏置设定器43和转矩信号发生部44输出。In addition, a torque command circuit 65 that outputs a torque command value to the
图3表示转矩信号发生部44的内部方框图。转矩信号发生部44,主要具有:修正部51、加算点57和切换器58,又,修正部51,具有:比较器52、修正量信号发生器53、判别器56和累计器55。在比较器52中,可输入卷取张力设定信号TS1和经纱张力信号T0,并且与对卷取张力设定值TS1的容许范围的临界值进行设定的设定器54a连接,将对卷取张力设定值的容许范围与经纱张力信号T0的比较结果即判别信号S3,向修正量信号发生器53供给。修正量信号发生器53与对在判别信号S3发生时输出的修正量进行设定的设定器54b连接,同时可输入来自后述的判别器56的判别信号S4,修正量信号发生器53,根据判别信号S3发生作为其输出的修正量信号SC1,并向累计器55供给。累计器55对输入的修正量信号SC1进行累计,将该累计结果作为信号SC2,向加算点57一方的输入端子供给。又,在加算点57另一方的输入端子上,可输入来自偏置设定器43的偏置设定值TS2,加算点57,将该2个的加算结果、即将偏置设定值TS2与信号SC2的加算结果作为信号SC3、向切换器58的一方的输入端子供给。又,在切换器58另一方的输入端子上,可输入来自转矩指令电路65的信号SC4,切换器58将与输入的偏置设定指令S1对应的信号作为转矩指令值Tq有选择地向电流发生器45输出。与此相对,在判别器56中,分支地输入偏置设定值信号TS2,判别器56,对偏置设定值TS2是正值还是负值作出判别,并将与判别结果对应的信号S4向修正量信号发生器53供给。FIG. 3 shows an internal block diagram of the torque signal generator 44 . The torque signal generation unit 44 mainly includes a correction unit 51 , an addition point 57 and a switcher 58 , and the correction unit 51 has a comparator 52 , a correction amount signal generator 53 , a discriminator 56 and an accumulator 55 . In the comparator 52, the winding tension setting signal TS1 and the warp tension signal T0 can be input, and it is connected to the setter 54a that sets the threshold value of the allowable range of the winding tension setting value TS1, and the winding tension setting value TS1 is connected to the setter. A discrimination signal S3 which is a comparison result between the allowable range of the tension setting value and the warp tension signal T0 is supplied to the correction amount signal generator 53 . The correction amount signal generator 53 is connected to the setter 54b that sets the correction amount output when the discrimination signal S3 occurs, and can input the discrimination signal S4 from the discriminator 56 described later. The correction amount signal generator 53, A correction amount signal SC1 is generated as an output from the discrimination signal S3 and supplied to the accumulator 55 . The accumulator 55 integrates the input correction amount signal SC1 and supplies the integrated result as a signal SC2 to the input terminal of the addition point 57 . Also, on the input terminal on the other side of the addition point 57, the offset set value TS2 from the offset
如图4所示,偏置设定器43主要由运算器48和锁闩电路49构成。在运算器48的输入端子上,在输入卷取张力设定值信号TS1、来自转矩指令电路65的信号SC4和经纱张力信号T0的同时,将作为其运算结果的信号ΔT向锁闩电路49输入。在锁闩电路49中,输入有偏置设定指令S1,输入信号S1之后经过直至张力稳定的期间T1时,将运算结果值ΔT进行存储,并将该存储值持续地作为偏置设定值TS2进行输出。As shown in FIG. 4 , the
另一方面,在修正部51上附设有时钟脉冲信号发生器59。时钟脉冲信号发生器59,在后述的运转信号S2的输入期间中,以预先设定的控制周期对时钟脉冲信号CK进行接通·断开的输出,将其向修正量信号发生器53及累计器55供给。On the other hand, a clock signal generator 59 is attached to the correction unit 51 . The clock signal generator 59 outputs the clock signal CK on and off at a preset control cycle during the input period of the operation signal S2 described later, and sends it to the correction amount signal generator 53 and the correction amount signal generator 53. Accumulator 55 supplies.
与此相对,如图2所示,运转控制部60,连接着初期设定钮61a及运转钮61b等的经纱卷取装置的操作钮,在偏置设定值的设定动作所需的期间以及经纱卷取装置运转的期间中,分别输出与按钮操作对应的动作指令信号、即偏置设定指令信号S1及运转信号S2。除此之外,运转控制部60,还连接着停止钮等的各种操作钮、断纱传感器和毛绒检测传感器等的检测纱线异常的传感器以及检测卷取装置异常的传感器等,运转控制部60,在从操作钮输入指令信号时,输出未图示的指令信号并进行卷取装置微动或反转等必要的操作,或者在从这些传感器输入信号时,可使运转信号S2中断、或使卷取装置停止。On the other hand, as shown in FIG. 2, the
又,当作业者操作运转钮61b时,运转控制部60,通过接通地输出运转信号S2,在卷取控制部32中,向设定于速度设定器33a中的高速运转用速度指令值、逐渐地增大输出速度指令信号v2,其后通过进行维持的输出,使卷取电机26加速并按照其后的定速进行旋转地开始卷取运转。Moreover, when the operator operates the operation button 61b, the
另一方面,在转矩指令部40中,一旦输入运转信号S2并开始卷取运转时,则在运转开始当初,与用于卷取运转而输出的偏置设定值TS2相对应、从辅助电机25发生转矩。经纱片17与张紧辊18接触,又,只要将卷取张力设定值TS1(或者说偏置设定值TS2)设定在适当的范围内,在经纱片17与张紧辊18之间就不会发生滑移。这样,张紧辊18,通过其辊子周面的磨擦力一边将与偏置设定值TS2对应的转矩作用于经纱片17上、一边朝经纱片17的走行方向进行旋转。又,辅助电机25,只要是与所供给的电流对应地发生转矩的促动器就行,可考虑采用例如直流电机和转矩电机等,也有考虑通过与电流发生器的组合来实现对电机的转矩控制,对发生转矩用的方法则不具体地加以限定。On the other hand, once the operation signal S2 is input to the
又,卷取运转开始后,当相对卷取张力设定值TS1的经纱张力T0发生偏差时,转矩指令部40,通过增减相对于当初的偏置设定值TS2的修正值SC2,变更相对于辅助电机25的转矩指令值Tq,不断地使经纱张力随着时间推移地接近于卷取张力设定值,实行以下的张力控制。Also, after the start of the winding operation, when the warp tension T0 deviates from the winding tension setting value TS1, the
参照图3,一旦输入运转信号S2时,则时钟脉冲信号发生器59在每个预定的控制周期中,脉冲状地将时钟脉冲信号CK向修正量信号发生器53及累计器55输出。比较器52,始终对由卷取张力设定值TS1和通过设定器54a所设定的临界值所决定的容许范围与经纱张力作出比较,当经纱张力值T0脱离了临界值范围时,输出与其脱离方向相对应的判别信号S3。这样,修正量信号发生器53在每次接受时钟脉冲信号CK时,可将由设定器54b所设定的、与修正量设定值对应的修正量信号SC1与判别信号S4对应地进行输出。Referring to FIG. 3 , once the operation signal S2 is input, the clock signal generator 59 outputs the clock signal CK to the correction amount signal generator 53 and the accumulator 55 in a pulse form in every predetermined control cycle. The comparator 52 always compares the allowable range determined by the winding tension set value TS1 and the critical value set by the setter 54a with the warp tension, and when the warp tension value T0 deviates from the critical value range, it outputs Discrimination signal S3 corresponding to its departure direction. In this way, the correction amount signal generator 53 can output the correction amount signal SC1 corresponding to the correction amount set value set by the setter 54 b corresponding to the discrimination signal S4 every time the clock pulse signal CK is received.
对于卷取运转用的偏置设定值TS2,利用卷取张力设定值TS1与经纱张力T0的关系,不限定于正值、也可设定成负值,换言之,由于可设定成使张紧辊18的作用力作用于与经纱片17的走行方向相反的方向或同一方向,因此,进行张力控制时的修正量输出也必须与其对应地进行输出。这样,判别器56,对偏置设定值信号TS2是正值还是负值作出判别、并通过输出判别信号S4,修正量信号发生器53,按照2个的判别信号S3和判别信号S4,将设定的修正量变换成消除张力偏差的状态,并将其作为修正量信号SC1向累计器55输出。接受该信号的累计器55,在每次接受时钟脉冲信号CK时,对输入的修正量进行累计,并将该累计结果通过向加算点57输出,可修正转矩指令值Tq。The offset setting value TS2 for winding operation is not limited to a positive value, but can also be set to a negative value based on the relationship between the winding tension setting value TS1 and the warp tension T0. In other words, it can be set so that The force of the tension roller 18 acts in the direction opposite to or in the same direction as the running direction of the
作为一例,假定在设定了比来自经轴架的引出张力高的卷取张力设定值TS1的场合、即假定在将偏置设定值TS2设定为正值的场合。当经纱张力值T0低于卷取张力的临界值范围的下限时,修正量信号发生器53,输出正值的修正量信号SC1,其结果是,累计器55的累计值增加,转矩指令值Tq,相对于当初的卷取运转用的偏置设定值TS2、随时间推移地不断增大地输出。反之,当经纱张力值T0高于卷取张力的临界值范围的上限时,修正量信号发生器53,输出负值的修正量信号SC1,其结果是,累计器55的累计值减小,转矩指令值Tq,相对于当初的卷取运转用的偏置设定值TS2、随时间推移地不断减小地输出。这样,可进行相对偏置设定值TS2的可变更修正量SC3的经纱张力控制,以形成与对实际的经纱的总张力值T0、即对卷取张力所设定的卷取张力设定值TS1接近的形态。通过实行这样的张力控制,即使在随着供纱体的消耗等而使来自经轴架侧的引出张力随时间推移而变化,也能始终维持被设定的卷取张力。As an example, it is assumed that a take-up tension set value TS1 higher than the drawing-out tension from the creel is set, that is, a case where the offset set value TS2 is set to a positive value. When the warp tension value T0 is lower than the lower limit of the critical value range of the take-up tension, the correction amount signal generator 53 outputs a positive value correction amount signal SC1. As a result, the cumulative value of the accumulator 55 increases, and the torque command value Tq is output so as to increase over time with respect to the offset set value TS2 for the initial coiling operation. Conversely, when the warp tension value T0 is higher than the upper limit of the critical value range of the winding tension, the correction amount signal generator 53 outputs a negative value correction amount signal SC1, and as a result, the accumulated value of the accumulator 55 decreases, and turns The torque command value Tq is output so as to decrease with time with respect to the offset set value TS2 for the initial winding operation. In this way, warp tension control with a changeable correction amount SC3 relative to the offset set value TS2 can be performed to form a take-up tension set value corresponding to the total tension value T0 of the actual warp yarn, that is, the set value of the take-up tension. TS1 close form. By implementing such tension control, even if the drawing-out tension from the creel side changes over time due to consumption of the yarn supply body, etc., the set winding tension can always be maintained.
又,因批量结束等原因、在使用新的纱种的经纱时,在卷取运转之前进行供纱体和卷取轴的调换,同时除了在经轴架侧设定张力器的赋于张力、或者设定经纱片的走行速度(卷取速度)以外,还必需设定新的经纱卷取用的卷取张力值、即设定偏置设定值。在该设定作业时,若采取以往那样的、作业者用目视一边观察经纱张力一边设定偏置设定值的方法,则会造成卷取的经纱片的长度也变长,在其间卷取的经纱片的张力与常态运转中的经纱张力值不同的现象,由此,因织轴裂纹等原因而降低经轴的品质。Also, when warp yarns of new types of yarn are used due to reasons such as the end of the batch, the yarn supply body and the winding shaft are exchanged before the winding operation, and at the same time, in addition to setting the tension of the tensioner on the creel side, Alternatively, in addition to setting the running speed (winding speed) of the warp sheet, it is also necessary to set a new winding tension value for warp winding, that is, set a bias setting value. In this setting operation, if the conventional method in which the operator sets the offset setting value while visually observing the warp tension will cause the length of the wound warp yarn to become longer, and the warp yarn to be wound in between will become longer. The phenomenon that the tension of the warp yarn sheet taken is different from the warp yarn tension value in normal operation, thereby reducing the quality of the warp beam due to cracks in the weaving beam or the like.
为此,作为本发明特征的权项,在设定偏置设定值时,首先将张紧辊18的作用力设定成相对经纱片17的规定的状态,另一方面,使卷取轴22旋转并实行检测经纱的总张力T0的第1工序,其次,实行将对卷取张力设定值与为了设定偏置设定值而进行临时设定的偏置设定值的加算结果、减去在偏置设定值的设定时检测出的经纱总张力的运算结果作为卷取运转用的偏置设定值来进行设定的第2工序。下面详细说明其具体的结构。For this reason, as the claim of the feature of the present invention, when setting the offset setting value, at first the active force of the tension roller 18 is set to the prescribed state relative to the
首先,作业者一旦按下初期设定钮61a时,则运转控制部60,在偏置设定所需的期间内,将偏置设定指令信号S1向速度信号发生器35、偏置设定器43、转矩信号发生部44的切换器58以及转矩指令电路65输出。First, when the operator presses the initial setting button 61a, the
速度信号发生器35,在偏置设定指令S1的输入期间,按照对应的速度设定器33b中所设定的设定值输出速度信号,另一方面,转矩信号发生部44的切换器58,将从信号SC3的输出切换成信号SC4的输出。这样,卷取电机26,以与设定成低速对应的速度进行旋转,经纱片以对应的速度被引出、且不断地被卷取在卷取轴上。与此相对,由于将设定器64中所设定的偏置设定动作时的偏置设定值TS4作为信号SC4通过切换器58被输出,因此,张紧辊18,在通过辅助电机25提供对应的转矩的状态下,被不断地卷取在卷取轴22上。由此,在张力辊20上,受到了来自经轴架11的经纱片的引出张力和来自张紧辊18的作用力的合力作用。The
上述偏置设定指令S1,也向偏置设定器43的锁闩电路49输入。上段的运算器48,对卷取张力设定值TS1和与偏置设定值TS4对应的转矩指令值S4的加算结果,持续地实行对偏置设定值动作时检测的经纱总张力T0进行减算的运算,锁闩电路49,在从信号S1输入后经过了直至张力稳定的期间T1的时刻,一边存储被输入的运算结果,一边可将该值作为卷取运转用的偏置设定值TS2持续地进行输出。The aforementioned offset setting command S1 is also input to the
下面详细说明偏置设定值的设定方法。在图1所示的经纱卷取装置中,在偏置设定值的设定动作时,将卷取轴22以低速进行旋转时所检测出的经纱张力值设为TSA,将来自推定的经轴架的引出张力值设为TB,将来自相对经纱片17的张紧辊18的作用力的值(即临时设定的偏置设定值)设为TSC,此时,从力的平衡性的关系出发,可成立TB+TSC=TSA…数式(1)。与此相对,在常态卷取运转中,将卷取张力设定值设为TRA,将实际的卷取张力维持设定值TRA时的张紧辊18的作用力的值设为TRC,此时,因考虑到来自经轴架的引出张力值TB不依存于卷取速度,因此,与上述一样从常态卷取运转中的力的平衡性的关系出发,可成立TB+TRC=TRA…数式(2)。若从数式(1)和数式(2)中将引出张力值TB消去,则可得到TRC=TRA+TSC-TSA…数式(3)。这样,根据导出的数式(3),以常态卷取运转中的卷取张力设定值进行卷取时的最佳的张紧辊18的作用力的值TRC,就可以通过对卷取张力设定值TRA(TS1)与偏置设定动作时的偏置设定值TSC(SC4)的加算结果、与在偏置设定动作时检测出的经纱张力值TSA(T0)进行减算的运算结果来决定。The setting method of the offset setting value will be described in detail below. In the warp winding device shown in FIG. 1 , when setting the offset setting value, the warp tension value detected when the winding
这样,由于随着偏置设定指令S1的输出,经纱片17一边接受来自经轴架11的引出张力和来自张紧辊18的作用力,一边不断地卷取在卷取轴22上,因此,在张力辊20上,在该2种合力作用的状态下可检测出经纱张力T0。在到达张力稳定的期间T1时,对常态卷取运转中的卷取张力设定值TS1与前一次的偏置设定值的设定动作时的转矩指令值SC4的加算结果、实行与被检测出的经纱张力T0进行减算的运算,可将该运算结果作为卷取运转用的偏置设定值信号TS2进行决定并输出。这样,可实行自动地决定卷取运转用的偏置设定值TS2用的一连串的动作。又,由上述时刻所检测出的经纱的总张力值T0中,包含着来自经轴架的引出张力,在由此设定的卷取运转用的偏置设定值TS2中,由于反映了来自经轴架的引出张力和卷取张力设定值TS1,因此,即使其后开始了卷取运转,也立即成为由所设定的卷取张力能进行卷取的值。这样,由于可以不用进行象以往那样、一边监视经纱张力一边在试行错误的情况下进行偏置设定值的设定作业,因此,可在这种设定作业期间节约所卷取的经纱量,换言之,因可进一步减少经纱的废弃量,故可进一步有效地利用经纱。Like this, because along with the output of offset setting command S1,
在上述的偏置设定值的设定动作时,对于偏置设定值设定时的临时设定的偏置设定值TS4(转矩指令值SC4),虽然与具体的设定值无关,但最好是能抑制的值。这是因为,由于经纱的纱种不同,张紧辊的周面与经纱片的接触状态(摩擦力)发生变化,会在偏置设定值与来自张紧辊18的实际作用力之间发生偏差,一旦设定值过大时,则会发生滑移,卷取运转用的偏置设定值往往被决定成异常的值。因此,上述临时设定的偏置设定值,相对于假定的值应设定成其以下的值,例如1/2以下的值,最好是,设定成零或与其相近的值。在此场合,在张力辊20上,主要是作用有来自经轴架11的经纱片的引出张力,可避免因随着来自上述的张紧辊的实际作用力的偏差而设定异常的卷取运转用的偏置设定值那样的危险性,可始终决定正确的偏置设定值。During the setting operation of the above-mentioned offset setting value, the temporarily set offset setting value TS4 (torque command value SC4) at the time of setting the offset setting value has nothing to do with the specific setting value. , but preferably a value that can be suppressed. This is because the contact state (frictional force) between the peripheral surface of the tension roller and the warp yarn sheet changes due to the difference in the yarn type of the warp yarn, and there will be a gap between the bias setting value and the actual force from the tension roller 18. Deviation, once the setting value is too large, slippage will occur, and the bias setting value for coiling operation is often determined to be an abnormal value. Therefore, the above-mentioned temporarily set offset setting value should be set to a value lower than the assumed value, for example, a value equal to or less than 1/2, preferably zero or a value close thereto. In this case, on the
然而,一般认为,在卷取运转中,与卷取运转用的偏置设定值TS2对应地从辅助电机25发生的转矩中,为了驱动张紧辊等多少有所消耗,因此从张紧辊实际作用于经纱的作用力,会小于偏置设定值TS2。因此,对于上述决定的偏置设定值TS2,最好是,对张紧辊驱动等所需的机械损失转矩(所谓的机械损耗)进行补偿。机械损耗,可认为是与旋转速度对应地增大,最好是,决定能补偿与经纱片的走行速度对应的机械损耗的偏置设定值。更具体地讲,如图2中的虚线所示,在偏置设定器43中附设有机械损耗补偿器63,能输出与张紧辊的旋转速度、即与经纱片的走行速度对应的机械损耗补偿值,如图4中的虚线所示,该输出向设置于运算器48前段的加算点47的一方的输入端子供给。这样,在发生偏置设定指令S1而使经纱片以规定速度走行时,运算器48,输出将上述运算结果与机械损耗补偿值TS3进行加算的运算结果,锁闩电路49可作为偏置设定值TS2进行输出。但是,这种机械损耗补偿也可在省略的实施形态中进行。又,也可采用将与经纱的走行速度对应地从机械损耗补偿器输出的补偿信号连续地与偏置设定值TS2的输出进行加算、以取代设定偏置设定值时的机械损耗补偿的结构。However, it is generally considered that during the coiling operation, the torque generated from the
又,对于设定偏置设定值时的卷取电机26的旋转速度,上述例是低速的例子,但只要是能对稳定的经纱张力进行检测,则未必一定是低速。除了一定的速度之外,既可以是随时间推移而增大或减小的速度,也可以是将加速中或减速中检测出的经纱的总张力作为基准来求出卷取运转用的偏置设定值。更具体地讲,可将未图示的加减速转矩补偿器与上述机械损耗补偿器63一样地进行设置。加减速转矩补偿器,通过将输入的速度指令信号V1进行微分来求出加速度,同时将对应的加减速转矩补偿值向设置于运算器48前段的加算点47的一方的输入端子供给。另一方面,在卷取控制部32的速度信号发生器35上,连接着将偏置设定时的经纱走行速度的加减速度作为参数进行设定的未图示的设定器。这样,通过发生偏置设定指令S1,卷取控制部按照加减速度的设定值使速度指令信号v1进行加速或减速,使经纱片的走行速度以规定的加速度或减速度走行。另一方面,在加减速转矩补偿器中,由于根据由经纱走行速度指令求出的加速度、输出加减速转矩补偿值,对张紧辊等的加速或减速中消耗的转矩进行补偿,因此,运算器48,输出将机械损耗补偿值TS3与上述运算结果进行加算后的运算结果,锁闩电路49,可作为偏置设定值TS2进行输出。这样,考虑到经纱走行速度的加速或减速中的张紧辊的惯性力的影响并通过对加减速转矩进行补偿,可获得不逊色于根据前者那样的一定速度状态下算出的值(同样程度的精度)的卷取运转用的偏置设定值。但是,这种加减速转矩补偿也可在省略的实施形态中进行。Also, for the rotational speed of the winding
在上述经纱卷取装置10中,在新的批量生产时,与纱的种类相对应,设定经轴架11上的各供纱体12的赋于张力,同时决定卷取张力设定值TS1。对于卷取张力设定值TS1,即使设定了比来自经轴架的引出张力高的值或相反地设定了低的值,也可随着偏置设定指令S1的输出,对卷取有经纱片17的状态的、与来自经轴架的引出张力对应的经纱片的总张力进行检测,实行上述的卷取张力设定值与经纱的总张力的减算,其结果是,将偏置设定值TS2作为正值或负值进行算出。顺便说,若是正的偏置设定值TS2,辅助电机25在应当增大卷取张力的、在与纱线走行方向相反的方向(图1中的顺时针方向)上发生转矩,反之,若是负的偏置设定值,则是在与纱线走行方向相同的方向(图1中的逆时针方向)上发生转矩。In the above-mentioned warp
在上述的经纱卷取装置中,决定卷取运转用的偏置设定值TS2之后开始卷取运转,其后与经纱总张力的检测值T0对应地对偏置设定值TS2进行修正并对来自辅助电机25的作用力进行修正,但对于该修正部51的具体的内部结构,不限定于图示例。例如在图3中,使用累计器55(即积分要素),与经纱片的张力变动相对应,使修正值随时间推移进行增减,但为了提高响应性,也可考虑采用比例和微分中的某一种要素、或者使用包含这些要素的例如PID控制器。又,当随着供纱体的卷径的减少而引起的引出张力的变化时,也可考虑作成将这种运转开始后的偏置设定值修正用的结构进行省略的结构。即也可考虑作成不进行上述修正、而是由辅助电机25始终发生与卷取运转用的偏置设定值TS2对应的转矩的结构。In the warp winding device described above, the winding operation is started after the offset set value TS2 for the winding operation is determined, and then the offset set value TS2 is corrected corresponding to the detected value T0 of the warp total tension and The biasing force from the
在上述的实施例中,可以考虑采取以下的变形。首先,对于偏置设定值的决定、或者在随时间推移地修正上述卷取运转用的偏置设定值TS2时所使用的经纱张力值,除了直接使用检测值之外,也可以使用防止因振动等引起的误设定和波动用的平均值。In the above-described embodiments, the following modifications can be considered. First, for the determination of the offset set value, or the warp tension value used when correcting the above-mentioned offset set value TS2 for winding operation over time, in addition to directly using the detected value, it is also possible to use a preventive value. Average value for missetting and fluctuation due to vibration, etc.
又,作为偏置设定值的设定时实行的、张紧辊18对经纱片的作用力不起作用(不作用)的方法,是将对于辅助电机25的转矩指令值Tq设定成零输出(换言之、将偏置设定时用的偏置设定值TS4设定成零)的形式,但也可以是实际上将转矩指令值Tq抑制输出成不作用于经纱片的程度(即设定成与零相近的值)。又,为了实现上述作用力的不作用,在具体的结构(内部区域的结构)上,例如也可通过从上段的指令电路中切离来实现零输出,不限定于图示例,可以作出多种考虑。或者,也可在辅助电机25与张紧辊18之间夹装有未图示的电磁离合器,通过将离合器置于断开状态来实现上述目的。也可以不采取上述的方法,而是考虑减轻张紧辊18与经纱片17接触的方法,更具体地讲,通过将导辊16a、16b设置成可从张紧辊18退避的状态,使经纱片17与张紧辊18形成非接触的状态。另一方面,也可以采取以下的方法、即通过将设定器64的偏置设定值TS4设定为零,实际上不实行偏置设定动作时的偏置设定值的加算,或者对运算器48进行的运算、通过省略偏置设定值TS4(转矩指令值SC4)的加算,也可通过将卷取张力设定值减去经纱总张力后的值作为卷取运转中的偏置设定值进行设定来实现。另外,也可采用将上述转矩指令值电气地切离的方法和解除与上述辅助电机的机械地连接的方法那样,在偏置设定值时也处于经纱与张紧辊接触状态的场合,与上述第1或第2要点一样,也可实行上述经纱走行速度的加速或减速时的上述加减速转矩补偿及与经纱走行速度对应的机械损耗补偿。Also, as a method of inactivating (not acting) the force of the tension roller 18 on the warp sheet when setting the offset setting value, the torque command value Tq for the
又,上述经纱卷取装置,只要是将从经轴架引出的经纱片卷取在卷取轴上的结构即可适用,不限定于卷取规定长度的经纱片的经纱整经机,也可适用于进行上浆干燥用的经纱上浆装置,更具体地讲,也可适用于对从经轴架引出的经纱片进行上浆干燥并卷取在经纱织轴或分条织轴上的经纱上浆装置。并且,对于这些经纱卷取装置,若兼用了对经纱片与张紧辊之间发生的滑移进行检测、并发生警报信号的技术,则可根据对发生滑移的检测来采取相应的措施,还可进一步提高经轴的品质。Also, the above-mentioned warp yarn winding device can be applied as long as it is a structure that winds the warp yarn sheet drawn out from the creel on the take-up shaft, and is not limited to a warp warper that winds a warp yarn sheet of a predetermined length. Applicable to a warp sizing device for sizing and drying, more specifically, a warp sizing device for sizing and drying a warp sheet drawn from a creel and winding it on a warp weaving beam or a slitting weaving beam. And, for these warp yarn take-up devices, if the technology of detecting the slippage that occurs between the warp yarn sheet and the tension roller is used, and an alarm signal is generated, corresponding measures can be taken according to the detection of the slippage, The quality of the warp beam can also be further improved.
在上述控制装置30中,分别由独立的电路来构成卷取控制部32、转矩指令部40和运转控制部60,但也可由1个电路来构成。例如,当然也可以采用微电脑及其软件程序,来实现这些一连串的动作和控制以及偏置设定值的运算等。In the above-mentioned
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CN101984164A (en) * | 2010-11-19 | 2011-03-09 | 海宁安捷复合材料有限责任公司 | Creel |
CN101984164B (en) * | 2010-11-19 | 2012-09-05 | 海宁安捷复合材料有限责任公司 | Creel |
TWI771135B (en) * | 2020-08-12 | 2022-07-11 | 日商三菱電機股份有限公司 | Tension control device and memory media |
Also Published As
Publication number | Publication date |
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KR20050014626A (en) | 2005-02-07 |
JP2005048299A (en) | 2005-02-24 |
JP3973608B2 (en) | 2007-09-12 |
CN1576417A (en) | 2005-02-09 |
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