EP3358059B1 - Procédé de production de données de commande d'un métier à mailles jetées - Google Patents

Procédé de production de données de commande d'un métier à mailles jetées Download PDF

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Publication number
EP3358059B1
EP3358059B1 EP17154114.7A EP17154114A EP3358059B1 EP 3358059 B1 EP3358059 B1 EP 3358059B1 EP 17154114 A EP17154114 A EP 17154114A EP 3358059 B1 EP3358059 B1 EP 3358059B1
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EP
European Patent Office
Prior art keywords
pattern
image data
properties
control data
computer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17154114.7A
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German (de)
English (en)
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EP3358059A1 (fr
Inventor
Herbert Wamser
Peter Dr. Knaup
Frank Harmeling
Michael Kieren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Karl Mayer Stoll R&D GmbH
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Karl Mayer Stoll R&D GmbH
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Publication date
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Priority to EP17154114.7A priority Critical patent/EP3358059B1/fr
Priority to CN201710195916.0A priority patent/CN108374233A/zh
Publication of EP3358059A1 publication Critical patent/EP3358059A1/fr
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Publication of EP3358059B1 publication Critical patent/EP3358059B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
    • D04B35/20—Indicating, warning, or safety devices, e.g. stop motions responsive to defects, e.g. holes, in knitted products
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B21/06—Patterned fabrics or articles
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B37/00—Auxiliary apparatus or devices for use with knitting machines
    • D04B37/06—Auxiliary apparatus or devices for use with knitting machines with warp knitting machines

Definitions

  • the invention relates to a method for generating control data of a warp knitting machine, in which properties of areas of a knitted fabric are defined which can be influenced by the mode of operation of the warp knitting machine, image data is provided for a pattern and the pattern is displayed, the computer using the pattern to the Control data belonging to the respective area is generated.
  • the designer or pattern designer comes up with a specific embodiment of the fabric. He then specifies laying types for certain areas of the fabric, using a warp knitting machine can be realized, and generates control data from it, with which the guide bars of the warp knitting machine must be controlled in order to produce the fabric.
  • DE 29 48 756 A1 describes a device for automatic position control of a machine part of a warp knitting machine, in which movement patterns for stepping motors or other drive means for the knitting tools of the warp knitting machine are provided via control data.
  • CN 105 063 881 A describes a warp knitting machine with a camera component and an image analysis and processing system connected to the camera component.
  • the camera can be moved over the fabric produced in order to record errors.
  • the invention is based on the object of making the implementation of ideas of a fabric designer into a fabric as simple as possible.
  • This object is achieved by a method for generating control data of a warp knitting machine that one, by a computer for each Area can search for at least one pattern that fulfills the properties to a predetermined degree.
  • the implementation of a pattern designer's ideas in a finished fabric is made much easier.
  • the pattern designer no longer needs to have in-depth knowledge of the relationships between a special layout and the resulting properties. Rather, it is sufficient if he specifies such a property.
  • Properties can be, for example, the grammage, i.e. the mass per square meter, the elasticity or stability in the longitudinal and transverse direction, the flexural strength, or simply the appearance.
  • the geometry there are, for example, the geometry, the type of surface, for example glossy or matt, a three-dimensional effect, or haptic properties, i.e. the fiber roughness or the contact with a given surface.
  • a color is also a design feature for a fabric.
  • the color is determined by the thread to be used. If the pattern designer has specified a property for a certain area, then the Using a database, computers look for an appropriate pattern that fulfills this characteristic. This pattern is then displayed and at the same time the corresponding control data for this pattern is provided. The pattern designer can then easily check whether the pattern for the specified area of the knitted fabric corresponds to his ideas or not. The only prerequisite for such an approach is usually that the individual areas of the newly designed material have been digitized. Appropriate programs are available for this.
  • the pattern to which the pattern fulfills the properties is preferably indicated. In particular, if a certain pattern is to fulfill several properties, it can happen that not all properties are fully met. In this case, the computer can then provide the pattern designer with assistance by showing the degree to which the properties have been met. The pattern designer can then decide whether the resulting properties correspond to his ideas or not.
  • a selection means is preferably actuated in order to select a specific pattern. It can happen that several patterns come into question because they all meet the required properties. In this case, all the relevant samples are displayed, if necessary also with an indication of the degree to which they meet the properties. The pattern designer can then select a specific pattern via the selection means.
  • the computer preferably generates an error message in the event of a combination of patterns which do not match one another in terms of machine technology. For example, patterns do not fit with one another in terms of machine technology if the fabric is produced in the warp knitting machine and is inadmissibly high Tensions occur in the threads. Such tensions could not only change the appearance of the fabric, but could also disrupt or even make production impossible. The pattern designer is informed of such errors at a relatively early stage.
  • the error message preferably indicates at least one affected area. So not only does it indicate that there is an error, it also shows where the error is. It is then easily possible for the pattern designer to localize and eliminate the error.
  • the control data can preferably be used to generate a list of the raw materials required.
  • the raw materials are primarily the threads used to produce the fabric, possibly threads already wound into warp beams. Furthermore, the raw materials required for the subsequent equipment can already be displayed.
  • the invention also relates to a method for producing a knitted fabric with control data which, as stated above, have been generated, the knitted fabric being recorded by a camera and actual image data thus generated and the actual image data compared with target image data which the Computer provided along with the sample.
  • the comparison between the actual image data and the target image data is preferably carried out by a computer. Since basically only data have to be compared with one another, a computer can take over this task, which further simplifies the procedure.
  • a pattern designer creates a fabric.
  • the fabric has different areas.
  • the individual areas have different properties according to the ideas of the pattern designer. These are properties that can be influenced by the mode of operation of the warp knitting machine, in particular the laying.
  • the properties can also be influenced by the thread tension of the supplied threads and by the withdrawal tension.
  • the properties include grammage, i.e. mass / m2, elasticity, stability in the longitudinal and transverse direction, flexural rigidity, transparency, open or closed areas, geometry, surface properties, three-dimensional effect and haptic properties. This list does not necessarily have to be exhaustive.
  • step 1 the pattern designer has laid down the fabric with his design in some way so that the fabric, more precisely the design of the fabric, can be digitized in a step 2.
  • the digital data are fed into a computer in step 3 or are already available on the computer after digitization. With the digitization of the individual areas, the properties of the areas are also transferred to the computer.
  • the computer searches for patterns for all specified areas that meet the required properties.
  • the patterns are particularly characterized by their laying data.
  • the specified tensions of the threads during feeding or of the knitted fabric during removal also influence the pattern and can accordingly be taken into account.
  • image data are stored in the database with which the corresponding patterns of the areas can be reproduced optically.
  • control data with which the corresponding patterns are generated are also stored.
  • the computer thus provides the image data in a step 5, which are referred to below as "target data" are designated.
  • target data is designated.
  • a step 6 it provides the control data for the warp knitting machine.
  • the target image data are displayed to the pattern designer.
  • the pattern designer has the opportunity to check whether the composition of the patterns for the fabric he has designed corresponds to his ideas.
  • This case can occur, for example, when there are several patterns which all meet the desired properties or property combinations.
  • the case can also occur when there is no pattern that satisfies all properties or property combinations at the same time.
  • the pattern designer then has the option in a step 8 of using a selection means 8a, for example a mouse pointer or a keyboard, to select a specific pattern which, in his opinion, best fits the fabric he has designed. Simultaneously with the selection of the pattern, the corresponding control data are also selected in a step 9.
  • a selection means 8a for example a mouse pointer or a keyboard
  • the computer checks whether the control data can be implemented in the specified manner, that is to say whether they match one another in terms of machine technology. In some cases, however, the combination of patterns from adjacent areas can result in inadmissibly high tensions in the threads, which make it difficult or even impossible to manufacture the fabric. Other possible errors can occur, for example, when areas that are adjacent to one another, or at least are arranged in the vicinity of one another, fail to pass Displacement movements of guide bars can be generated because they influence each other negatively in an impermissible manner. In this case, the computer can output an error message in a step 11 and at the same time display which areas are affected by the error.
  • step 12 For the problematic areas.
  • Such an error correction can for example consist in the fact that the corresponding problematic areas of the material are rotated or tilted somewhat in the plane of the material.
  • a "turning” is to be understood here as a rotation of the pattern about an axis which is perpendicular to the fabric. When "tilting”, however, a parallelogram-like displacement of the pattern is carried out. In many cases, there is no noticeable optical change in both areas if the corresponding correction angle is small.
  • control data are sent to the warp knitting machine in a step 13 and production can begin.
  • a camera records the fabric produced and uses it to generate actual image data.
  • the actual image data can either be sent back directly to the pattern designer, who can view them on a corresponding display device, for example a screen, in order to check whether the fabric produced corresponds to his ideas.
  • the actual image data generated can also be compared in a step 15 with the desired image data generated in step 5, for which purpose a computer is also expediently used. If there is a sufficient match, production can be continued. If there are impermissible deviations, production is stopped and an error can be searched for.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Claims (10)

  1. Procédé, destiné à générer des données de commande d'un métier à tricoter chaîne, lors duquel l'on définit des propriétés de zones d'un produit tricoté qui sont influençables par le mode opératoire du métier à tricoter chaîne, l'on met à disposition des données images pour un motif et l'on suscite l'affichage du motif, l'ordinateur générant avec le motif les données de commande associées à la zone en question, caractérisé en ce que l'on fait chercher par un ordinateur pour chaque zone au moins un motif satisfaisant aux propriétés à un niveau € prédéfini.
  2. Procédé selon la revendication 1, caractérisé en ce que pour le motif, l'on suscite l'affichage du niveau auquel le motif satisfait aux propriétés.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'en présence de plusieurs motifs possibles, l'on actionne un moyen de sélection, pour sélectionner un certain motif.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que dans le cas d'une association de motifs, qui du point de vue technologique du métier ne sont pas compatibles, l'ordinateur génère un message d'erreur.
  5. Procédé selon la revendication 4, caractérisé en ce que le message d'erreur indique au moins une zone concernée.
  6. Procédé selon la revendication 5, caractérisé en ce qu'après un message d'erreur, l'on modifie au moins l'une des zones concernées.
  7. Procédé selon la revendication 6, caractérisé en ce que l'on fait tourner, basculer, l'on étire, déplace, rapetisse ou agrandit la zone qui doit être modifiée.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'à l'aide des données de commande, l'on fait établir une liste des matières premières nécessaires.
  9. Procédé, destiné à générer un produit tricoté avec des données de commande, qui ont été générées selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'on fait enregistrer le produit tricoté par une caméra, pour générer ainsi des données images réelles et en ce que l'on compare les données images réelles avec des données images de consigne que l'ordinateur a mises à disposition conjointement avec le motif.
  10. Procédé selon la revendication 9, caractérisé en ce que la comparaison entre les données images réelles et les données images de consigne est opérée par un ordinateur.
EP17154114.7A 2017-02-01 2017-02-01 Procédé de production de données de commande d'un métier à mailles jetées Active EP3358059B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17154114.7A EP3358059B1 (fr) 2017-02-01 2017-02-01 Procédé de production de données de commande d'un métier à mailles jetées
CN201710195916.0A CN108374233A (zh) 2017-02-01 2017-03-29 用于产生经编机的控制数据的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17154114.7A EP3358059B1 (fr) 2017-02-01 2017-02-01 Procédé de production de données de commande d'un métier à mailles jetées

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EP3358059A1 EP3358059A1 (fr) 2018-08-08
EP3358059B1 true EP3358059B1 (fr) 2021-11-03

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CN (1) CN108374233A (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2037822B (en) * 1978-12-07 1983-04-27 Gatehouse D W Automatic positioning of machine elements
US5557527A (en) * 1993-08-31 1996-09-17 Shima Seiki Manufacturing Ltd. Knit design system and a method for designing knit fabrics
JP4808596B2 (ja) * 2006-11-21 2011-11-02 デジタルファッション株式会社 編構造モデル生成プログラム、編構造モデル生成装置、及び編構造モデル生成方法
JP5330252B2 (ja) * 2007-09-10 2013-10-30 株式会社島精機製作所 ニットデザインでのデバッグ装置とデバッグ方法、デバッグプログラム
KR101356987B1 (ko) * 2009-11-26 2014-01-29 가부시키가이샤 시마세이키 세이사쿠쇼 니트 디자인 장치와 디자인 방법, 디자인 프로그램
JP5732321B2 (ja) * 2011-06-08 2015-06-10 株式会社島精機製作所 ニットデザイン方法および装置
JP6120792B2 (ja) * 2014-03-18 2017-04-26 株式会社島精機製作所 ニットデザインシステムとニットデザイン方法
CN106294912A (zh) * 2015-06-05 2017-01-04 内蒙古工业大学 针织毛衫工艺网络辅助设计系统
CN105063881B (zh) * 2015-08-07 2017-08-11 浙江彩蝶实业有限公司 一种经编机停车检测装置

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CN108374233A (zh) 2018-08-07
EP3358059A1 (fr) 2018-08-08

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