EP1921193A2 - Dispositif et procédé destinés à la modification de motifs de broderie - Google Patents

Dispositif et procédé destinés à la modification de motifs de broderie Download PDF

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Publication number
EP1921193A2
EP1921193A2 EP07405232A EP07405232A EP1921193A2 EP 1921193 A2 EP1921193 A2 EP 1921193A2 EP 07405232 A EP07405232 A EP 07405232A EP 07405232 A EP07405232 A EP 07405232A EP 1921193 A2 EP1921193 A2 EP 1921193A2
Authority
EP
European Patent Office
Prior art keywords
data
change
embroidery pattern
pattern
embroidery
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.)
Withdrawn
Application number
EP07405232A
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German (de)
English (en)
Inventor
Gérard DURVILLE
Boris Zickenberg
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.)
BERNINA International AG
Original Assignee
BERNINA International AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BERNINA International AG filed Critical BERNINA International AG
Publication of EP1921193A2 publication Critical patent/EP1921193A2/fr
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Program-controlled sewing machines
    • D05B19/02—Sewing machines having electronic memory or microprocessor control unit
    • D05B19/04—Sewing machines having electronic memory or microprocessor control unit characterised by memory aspects
    • D05B19/10—Arrangements for selecting combinations of stitch or pattern data from memory ; Handling data in order to control stitch format, e.g. size, direction, mirror image

Definitions

  • the invention relates to an apparatus and a method for changing embroidery patterns according to the features of patent claims 1 and 7.
  • Modern sewing machines often include embroidery devices with an embroidery hoop that can be coupled to the sewing machine. For embroidering the fabric is clamped in the hoop. This is displaceable by means of two independent drives in two directions of the sewing plane.
  • the embroidery frame controlled by the sewing machine control is moved to the next following puncturing position depending on stored embroidery pattern data, where the formation of a stitch is initiated.
  • the software that controls the movements of the embroidery frame and the needle bar with the sewing needle is usually stored in a program memory of the sewing machine.
  • the embroidery pattern data of an embroidery pattern can also be stored in an internal memory of the sewing machine. Alternatively, however, the embroidery pattern data can also be stored in an external memory, such as a USB stick, that can be connected to the sewing machine.
  • the stitches or the stitching positions for the embroidery pattern to be created must each be recalculated, whereby the number of puncture sites usually increases or decreases, so that the embroidery density quality only within tolerable limits can change.
  • This type of adaptation of the embroidery pattern data is also called “recalculation”.
  • a CAD software such as "ARTE Engine” is needed.
  • the design data must also be in a suitable vector format such as ".ART”.
  • the recalculation of embroidery design data is computationally intensive and requires a computer with correspondingly high computing power. For this reason, conventional sewing machines without powerful CAD software sometimes use alternative algorithms for the recut of pattern data. This leads in particular with stitch-data-based embroidery formats such as ".EXP" to the fact that the embroidery density quality decreases with increasing magnification, and that fillings of the embroidery pattern can be lost.
  • a further object of the invention is to design the device and the method such that fillings of embroidery patterns are not lost, even with stitch pattern-based formats.
  • an embroidery pattern can be easily and quickly scaled or changed without impairing the quality of the embroidery pattern.
  • several data sets are created, which represent the embroidery pattern with the associated stitch data for different, fixed or predefinable scaling factors.
  • the invention is applicable not only to size changes with constant proportions, but generally to parameterizable changes, the term “change factor” is used instead of the term “scaling factor” and the term “change value” instead of the term “scaling value”).
  • the stitch data of each of the records is optimized for stitch density quality.
  • the predetermined change factors are preferably such that they correspond to enlargements or reductions of the embroidery pattern in steps of approximately 20% of the original size.
  • the user can set or select the desired change value. Based on this user input, the machine control determines the modification factor closest to is the desired change value. Based on the specified stitch data of the associated data set, the machine control calculates the actual stitch data for the desired change value. Thus, it is not necessary to recalculate stitch placement for an embroidery design if a size change of the embroidery pattern is desired by more than about 20% of its original size.
  • embroidery patterns can be scaled or changed quickly and without additional software for calculating new stitch arrangements directly by the sewing machine control within a large area. Regardless of the respective change value, any fill patterns are retained.
  • FIG. 1 shows in a coordinate system with the reference axes x and y (these correspond to the independent displacement directions of an embroidery frame) an exemplary embroidery pattern 1 in original size.
  • the term "embroidery pattern 1" in each case comprises a specific image or motif, to which a sequence of discrete puncture sites 3 is assigned in accordance with its size and the desired puncture density quality.
  • the embroidery pattern 1 can be enlarged or reduced or scaled, whereby its shape is maintained with proportional size changes, but the number and arrangement of the puncture sites 3 can be adjusted.
  • the units of length of the coordinate system are represented by bar marks on the reference axes x and y.
  • the embroidery pattern 1 is kept very simple. It represents the outline of a bird's head. The eye and the beak are filled with a simple filling pattern.
  • the individual puncture sites 3 are as small Circular rings shown, the sewing thread 5 between these puncture sites 3 as solid lines.
  • the embroidery pattern 1 can be stored, for example, by storing the coordinates (x i , y i ) for each contiguous object which can be formed by an uninterrupted sequence of stitches, in the order of the stitches to be formed.
  • the index i corresponds to the number of the respective sewing stitch.
  • the coordinates (x i , y i ) can be given, for example, relative to the origin of the coordinate or relative to the respective preceding stitch (x i-1 , y i-1 ).
  • FIG. 2a shows the embroidery pattern 1 from FIG. 1.
  • this embroidery pattern 1 is smaller by about 40% (the length units of the coordinate system coincide with those of FIG. 1).
  • the new coordinate values x i and y i can be calculated in the present example by multiplying the original coordinate values by a factor of about 0.6.
  • FIG. 2b corresponds to the embroidery pattern 1 of FIG. 2a reduced in size by the factor of approximately 0.6 with newly calculated or adjusted to the new size puncture sites 3.
  • Compared to Figure 2a comprises the embroidery pattern 1 in Figure 2b fewer puncture sites 3, so that the stitch density quality approximately equal to that of the embroidery pattern 1 in original size.
  • the optimized stitch data or coordinates (x i , y i ) for different change factors q j can be calculated eg with corresponding algorithms of a CAD software.
  • a data set d j is calculated with the associated stitch data (x i , y i ).
  • the calculations are usually performed on a machine independent of the sewing machine. Of course, with appropriate design of the sewing machine calculations can also be performed there.
  • a storage medium accessible to the sewing machine control not only the first data set d 0 with the stitch data or coordinates (x i , y i ) of the embroidery pattern 1 are stored in original size, but also one or more further data records d j with the optimized stitch data or coordinates (x i , y i ) for one or more scalings or enlargements or reductions of the embroidery pattern 1 and the associated change factors q j .
  • a first step S1 the user can select, set or specify a desired change value v at a correspondingly designed user interface of the sewing machine.
  • v 67% is set.
  • step S3 The associated data set d 3 with the coordinates (x 31 , y 31 ), (x 32 , y 32 )... (X 3k , y 3k ) of the respective puncture sites 3 is selected as step S3. It serves as the basis for calculating the stitch data for the change value v Enlarged or reduced embroidery image 1.
  • the x and y coordinates of the puncture sites 3 stored in the data set d 3 are subsequently multiplied by this value w in a step S4.
  • another comparison criterion could alternatively also be used in step S2. For example, instead of the change factor q j closest to the selected change value v, the respectively next larger or the next smallest change factor q j could be selected.
  • the scaling of an embroidery pattern 1 corresponds to a specific transformation or conversion in which the stitch data coordinates (x i , y i ) in the embroidery pattern plane are proportionally enlarged or reduced.
  • the shape or contours of the transformed embroidery patterns are preserved at scaling.
  • parameterizable transformations can be understood as functions F which assign a pixel F (x i , y i ) to each dot (x i , y i ) of an embroidery pattern.
  • a transformation that changes the shape of an embroidery pattern can be subdivided into several intermediate steps.
  • FIG. 4 shows by way of example the transformation of a rectangle 7 into a circle 9 by means of a function F. This corresponds to a change factor of 100%.
  • the function can be understood as a continuous transition from an original image (rectangle 7) to a transformed image (circle 9).
  • q j intermediate functions F j can be calculated.
  • an intermediate function F 1 33.3%
  • an intermediate function F 2 66.6%
  • an intermediate function F 2 is shown.
  • the user can specify a desired change value v, these values v now having to be between 0% and 100%.
  • the control software determines the both adjacent change values q j and q j + 1. and calculates, for example, by linear interpolation the searched pixels.
  • embroidery pattern data of a plurality of different transformations or functions F can be stored in a memory accessible to the sewing machine control. It is also possible to store no data records for intermediate functions from one or more of these functions F.
  • an embroidery pattern in addition to the data set d 0 with the stitch data of the original, records d j with stitch data of simple transformations such as reflections or rotations can be stored at 45 ° or 90 ° and retrieved via a selection menu of the sewing machine.
  • an embroidery pattern may comprise a plurality of partial patterns. The partial patterns can be combined individually or in groups and scaled or changed with the same or different modification values.
  • FIGS. 4a and 4b which comprises three partial patterns, namely a lettering 11a symbolically represented as letter "A", a square 11b and a star 11c.
  • Each of these partial patterns has its own coordinate system with a reference point 13a, 13b, 13c.
  • the partial patterns can be individually in original size and / or with optimized Stored stitch data.
  • the partial patterns can be changed according to the invention with the same or alternatively with different change values v. It is also possible to rearrange the reference points of the scaled or modified part patterns when the design pattern changes.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
EP07405232A 2006-11-10 2007-08-13 Dispositif et procédé destinés à la modification de motifs de broderie Withdrawn EP1921193A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH18072006 2006-11-10

Publications (1)

Publication Number Publication Date
EP1921193A2 true EP1921193A2 (fr) 2008-05-14

Family

ID=39090709

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07405232A Withdrawn EP1921193A2 (fr) 2006-11-10 2007-08-13 Dispositif et procédé destinés à la modification de motifs de broderie

Country Status (2)

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US (1) US20080114484A1 (fr)
EP (1) EP1921193A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014114468A1 (fr) * 2013-01-28 2014-07-31 Zoje Europe Gmbh Machine à broder comprenant au moins une navette rotative pour double point noué

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010201064A (ja) * 2009-03-05 2010-09-16 Brother Ind Ltd 刺繍データ作成装置、刺繍データ作成プログラムおよび刺繍データ作成プログラムを記憶した記憶媒体
JP2013146366A (ja) * 2012-01-19 2013-08-01 Brother Ind Ltd 刺繍データ作成装置および刺繍データ作成プログラム
US9661886B1 (en) * 2016-05-15 2017-05-30 v Personalize Inc. System and method for capturing design state of apparel or accessory to enable extrapolation for style and size variants
US10706636B2 (en) 2017-06-26 2020-07-07 v Personalize Inc. System and method for creating editable configurations of 3D model

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796551A (en) * 1986-07-25 1989-01-10 Juki Corporation Method and apparatus for preparing sewing data
JPS63267387A (ja) * 1987-04-24 1988-11-04 ブラザー工業株式会社 ミシン
JPH07110309B2 (ja) * 1987-10-30 1995-11-29 蛇の目ミシン工業株式会社 刺しゅうミシン
JPH0176772U (fr) * 1987-11-11 1989-05-24
JPH0357479A (ja) * 1989-07-27 1991-03-12 Brother Ind Ltd 模様縫いミシン
JP2903499B2 (ja) * 1989-12-22 1999-06-07 蛇の目ミシン工業株式会社 ミシンの模様の大きさ調節装置
JPH06233883A (ja) * 1993-02-10 1994-08-23 Brother Ind Ltd 刺繍ミシンのための刺繍データ作成装置
JP3467077B2 (ja) * 1994-06-01 2003-11-17 ブラザー工業株式会社 刺繍データ作成装置
JPH0838755A (ja) * 1994-07-29 1996-02-13 Brother Ind Ltd 刺繍データ作成装置
JP3336797B2 (ja) * 1995-02-23 2002-10-21 三菱電機株式会社 ミシンの縫製データ作成装置
JPH10323469A (ja) * 1997-05-27 1998-12-08 Brother Ind Ltd プログラム式電子ミシン
JP2000051556A (ja) * 1998-08-05 2000-02-22 Brother Ind Ltd 刺繍データ作成編集装置
US7457683B2 (en) * 2006-02-08 2008-11-25 Bailie Brian D Adjustable embroidery design system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014114468A1 (fr) * 2013-01-28 2014-07-31 Zoje Europe Gmbh Machine à broder comprenant au moins une navette rotative pour double point noué

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