FR2523602A1 - METHOD AND DEVICE FOR ESTABLISHING NEW FABRIC DRAWINGS AND DATA MEDIA - Google Patents

Abstract

From individual basic weave repeats of simple design, new weaving patterns are developed or the data for controlling shedding machines are collated. The basic repeats are stored in a computer, are called up by means of an editing instruction and are combined in any sequence and repetition to form a complete pattern. As the result of the breakdown of the pattern into individual basic repeats and the build-up in response to an editing instruction, the number of patents to be stored can be reduced considerably.

Description

Method and device for establishing new fabric designs and data carriers.

 The invention relates to a method for establishing new fabric designs and / or fabric design data carriers, for example perforated design cards, for controlling shedding machines, as well than to a device for implementing the method.

 For the control of shedding machines, in most cases, paper strips or sheets of plastic sheet material are used as data carrier, which are assembled by gluing so as to form a strip without end. The fabric design data is thus stored or stored in the form of holes or solid areas on these strips. Certain trends appear with a view to using, in the future, also the means of electronics to store this data or control information.

 According to the state of the art, the drawing is carried out manually on a network, and this point of armor for point of armor. Using the rentraqe report, that is to say the plan of the distribution of the warp threads on the blades, this results in the mapping of the drawing. The information contained in these card layouts is then stitched point for point in a stitching machine which ensures the punching of the necessary holes. The whole process is done by purely manual work, requires a lot of time and contains many possibilities for errors.

Since errors are mostly seen only on a woven piece, the resulting costs are very high.

In Jacquard weaving the problems arise in an analogous way, even if they are still
much larger, due to the importance of
tance and complexity of the drawing to establish and the need to store, during the automated preparation of order data, each armor point as separate information. We have tried, with success, to automate the process and make it faster and safer. The necessary devices are however extremely bulky and consequently expensive. Their implementation in the field of weaving by blades is therefore practically excluded.

 The aim of the present invention is therefore to provide a method for projecting new designs and for automatic data transmission, which is distinguished by its clarity and ease and which takes account of the particularities of weaving by blades. associated must be simple, safe and fast enough for a significant increase in creativity and flexibility to be possible in the woven fabric.

 This object is achieved with a method of the kind defined above and which, according to the invention, is characterized in that basic armor ratios are stored and, upon entry of at least one editing order, are organized in an automatically functioning device, in a combined overall drawing, and are extracted from the device.

In contrast to Jacquard weaving, in which each quilt point liae serves as the basic element, this data set for blade weaving; whose designs are made from relatively small armor ratios, is reduced to a fraction. Any basic relationships are now placed one after the other in any way and thus together form the design. According to this method, no more information is stored in memory,
all armor points. To characterize the
desired design, a reduced editing order is sufficient.

 Advantageously, several editing orders are stored, with a view to calling them, by the device, constituted by a computer.

Edit commands can trigger at least one of the following phases - extraction of basic reports from memory by determining the sequence of implementations in the overall model - multiple repetition of basic reports
- in the original form
- in a form corresponding to a mirror image around a horizontal and / or vertical axis
- with exchange of weft and warp effects;
- by determining the place of the beginning according to the warp and weft direction inside the report - establishment of the data of the rentraqe report from the data of the overall model - establishment of the data of the mapping from set model data and associated input data.

 When two basic reports are called up during the drawing of the fabric design, with multiple distribution of at least one basic report, priority is given to at least one basic report for the arrangement in the drawing of the tissue.

 Additional edit orders are stored for modifications to existing edit orders.

 Devices can be provided for manual entry of particular armor points.

 Basic and rentray reports can be stored and coordinated, by editing orders, with a return report associated with a fabric design.

The overall drawing can be transmitted in the form of control pulses to a crowd forming machine for direct control,
The overall drawing can be delivered in the form of a graphic representation on a screen, advantageously with the particular armor points drawn in contrast points.

 The device for implementing this method is characterized in that it comprises at least one calculation unit, a display screen, an input keyboard, several memories and an output unit for control machine data. train the crowd.

 The process according to the invention is now explained with the aid of exemplary embodiments shown in the accompanying drawings.

FIG. 1 of these drawings schematically shows a known system for establishing data carriers using reports and data stored in memory,
FIG. 2 shows the diagram of a device for establishing new tissue designs or the corresponding data carriers,
Figures 3, 4, 5 and 6 show a selection of various basic weave ratios, from which the fabric design can be made,
Figure 7 shows a fabric drawing according to the invention, developed from the bnse ratios of Figures 3, 4 and 5, shown in conventional form with networks.

Figure 8 shows a basic weave ratio with three variants mirrored to the horizontal axis x and the vertical axis y
FIG. 9 shows a first modification of the basic ratio according to FIG. 8,
FIG. 10 shows a second modification of this basic ratio according to FIG. 8,
FIG. 11 shows a meeting of a basic report, of an order of edition of a drawing map, with the help of which the work of the mapping is explained in greater detail,
FIG. 12, finally, schematically represents a detailed arrangement of a device for implementing the method according to the invention.

 In the known systems in accordance with FIG. 1, the computer, controlled from a member exploring the drawing, taking account of the corrections presented, and on the basis of data stored in the report memory and in the data memory, determines the data of the desired drawing. These data are transmitted electronically, mechanically, hydraulically or otherwise, to the data carrier which may consist of a tape, a disc or the like.

 In the new system according to FIG. 2, the orders for drawing up the drawing are given from a programmer, by a coded programming system, with the editing orders stored in memory, which themselves may be the addressees of other editing orders, whereby the calculator calls up the basic data from the reports and orders memory.

 The calculated data are used to establish the data medium or are sent to a crowd forming machine for direct control thereof. Examples of data carriers are formed by perforated design cards, electronic semiconductor memories or magnetic memories.

The fabric design in Figure 7 was developed from the basic weave ratios of Figures 3, 4 and 5, these basic ratios being stored in a memory such as a "library" with call words , or being designated, in the example cited, by the letters a, b, c z. The editing order used for this purpose therefore consists of letters and numbers and is expressed, in this case, by
50 / 2a; P2b; 2c; the/.

 The number 50 located before the parenthesis means, with this particular drawing definition, that the basic ratio designated by "P" = priority parameter; in this case b, must be drawn 50 times in the vertical direction of the drawing card. The expression located between the parentheses or bars characterizes the drawing itself by the basic ratios in the horizontal direction. The construction can be seen from Figure 7. First of all, the basic ratio a is repeated twice, then to this ratio, the basic ratio b is also repeated twice, then the basic ratio c also repeated twice. The design ends again with the basic ratio a. The width of the design in the horizontal direction is limited by the maximum number of blades of the weaving machine used.

 As already indicated, the report is made 50 times in the vertical direction b. The remaining reports are made until the necessary number of frames is obtained, calculated from the length of the basic report b and the number 50.

The basea report is performed 100 times in this case.

The priority setting makes work much easier when using unequal length armor ratios and when choosing the total number of frames.

 The drawing length of 200 frames corresponding to the example described would require, when using known methods, to store 2000 Bits, possibly 16 000 Bits. Thanks to the use of the new editing order, 128 Bits at most are required.

 Another advantage of using the editing order is that the armor ratios stored in the "library" can be subject to variations, for their use, by the choice of parameters in the order of edition, without these variations being stored themselves. This is possible, because a point-for-point reading is no longer performed.

The basic reports can also be designated by characteristic words, instead of letters.

In Figures 8-10, an example of a basic report D is shown with its modifications.
Dx, Dy, Dxy, Dy21 and -D. Dx and Dy are obtained by a mc dification corresponding to a mirror image (or symmetrical image) compared to the horizontal axis x or the vertical axis y. Dxy is a combined mirror image around the x axis as well as around the y axis.

 FIG. 9 shows a modification D y21 according to which, by a command starting from another parameter in the order of edition, the work of the base ratio is no longer carried out with the first warp thread and the first weft thread, but starts with the second warp thread. The ratio Dy21 represents the basic ratio D, which previously underwent a transformation into a mirror image around the y axis and for which the reading in the chain direction is carried out with the second blade, which is then succeeded by the third Pus the first blade with its warp threads. Within a basic report, it is also possible by means of an editing order to start in any place following the direction of the warp and the weft with use of the report for the drawing.

 Another modification of the basic ratio D is shown in FIG. 10 under the designation -D.

The design is changed from a warp yarn effect to a weft yarn effect, i.e. for each of the weave points for which the warp yarns were visible, it is now the weft yarns which are visible.

Compared to the known methods according to which a representation in image through a mirror of a drawing also takes place, the advantage of the method according to the invention consists in that the reflex does not need to be produced explicitly on
from which the screen, to / the mirror image is to be explored point by point, but in that the data, by the presentation of the corresponding editing order, can be sent immediately to the corresponding data medium for their storage.

 Due to the possibility of modifying the basic reports stored. by using parameters in edit orders, this results in a significant reduction in storage requirements for basic reports.

 From the example of modification according to FIG. 10, it is visible that there is a close relationship between the drawing card for ordering picks and for inserting the warp threads into the heddles of the blades, which take place based on re-entry reports.

 FIG. 11 schematically shows the establishment of a KSP card layout, in which the drawing is derived from the MP card layout taking account of the reentry E of the warp threads.

 According to the new composition of a drawing 111, for example from unelisièreR and two basic reports GR, the mapping is established in a known manner. It is then a question of collecting design data according to a system to be prescribed, on the number of blades to be used.

 On the. presentation of a corresponding editing order, it is possible during drawing up, to interrupt, at a determined location of each basic report, this report and all the basic reports entailed by it, this whereby the particularly difficult calculation work for compensating the length of the overall drawing is carried out automatically.

 Now, it can also happen that for reasons of armor technique, other points of armor must be introduced in a weft line or that such points must be deleted. Because in the proposed method all the lines or frames are represented numbered, it is possible to insert correction orders with line numbers in the editing order. In the representation of the drawing, for example on a screen or during the data transmission, these correction orders will be taken into account.

 A device used for example for implementing the method consists, as shown in FIG. 12, of a screen 2, an input keyboard 3, which is advantageously similar to a typewriter keyboard, d a computer 1 programmed according to the proposed method, a memory of wires 4, advantageously by stack, for the basic ratios of armor and iteration, a memory for reading and writing with supports data, advantageously floppy disks 5, or cassettes 6 for editing orders, a printer 8 and an electrically controlled stitching machine 7 or another device 9, 10 which provides the armor mechanics with the necessary control information on any data medium.

 Instead of storing order information on a data medium, the data supplied can be entered directly into the work process. In the present example, it is a weaving machine controlled from a shedding machine 11, which weaving machine is represented diagrammatically by the frame of the fabric or blades ser 12 and the frames 13. The movement, in accordance with the drawing, of the lever 14 is transmitted to the frame 13 by the linkage linkage 15.

 The information supplied to the shedding machine 11 replaces the control pulses, from a drawing card, read by a mechanism.

 The projected drawings are displayed on screen 2. At the bottom of the screen, the editing order appears. It can be established and modified - with the keyboard 3. The printer 8 is used to illustrate the drawing and this over a larger area than that permitted by the screen. Therefore, an appreciation of the effect of the design is possible more easily. It is advantageous that the lines are written from the bottom up and that they are also numbered in the same direction, in the printer which delivers the design in the form of a sheet written to the typewriter.

The columns should therefore be numbered from left to right. This arrangement corresponds to the current direction in weaving.

 Floppy disks 5 or cassettes 6 are used for storing editing orders, which correspond to the drawings. Therein lies another advantage of the device and the method, namely that the storage of thousands of drawings is possible in a very small space.

Until now, whole parts were required for the storage of drawing cards.

 Due to the process used which directly issues the card data, it is also superfluous to store a particular card.

 Although it is partially known in its elementary parts, this device, together with the proposed method, opens to designers, in the field of weaving by blades, entirely new possibilities for creating and producing new designs in a very short time and frees them from all manual work with the use of colors and drawing paper. As it is possible by a simple manipulation of the editing junk to compose and examine in a very short time many designs, the creativity and flexibility of weaving by blades are significantly increased.

 An essential characteristic of the device resides in that it is not limited to the sheets of paper or plastic used to date as a data carrier, but that it can also be used in an equally advantageous manner, for data carriers such as magnetic cards 9 or semiconductor memories 10 which will appear in the future and may be present.

Claims (13)

Claims  1. Method for establishing new fabric designs and / or fabric design data carriers, for example punched pattern cards, for controlling crowd forming machines, characterized in that base of armor are stored in memory (a, b, c ....) and, on entry of at least one order of edition, are organized in a device (1) functioning automatically. in a combined overall drawing and are extracted from the device (1).  2. Method according to claim 1, characterized in that several editing orders are stored, for their call, by the device.  3. Method according to claim 1 or 2, characterized in that the editing orders trigger at least one of the following working phases - extraction of the basic reports from the memory, by determining the sequence of implementations in the overall model - multiple repetition of basic reports;  - in the original form  - in a form corresponding to a mirror image around a horizontal and / or vertical axis  - with weft and weft effects  - by determining the place of the beginning according to the warp and weft direction inside the report - establishment of the data of the rentraqe report from the data of the overall model - establishment of the data of the mapping from set model data and associated input data.  4. Method according to claim 3, according to which at least two basic reports are called, characterized in that during the establishment of the  fabric design, with multiple repetitions of at least  a basic report, priority is given to at least  a basic report for the layout in the design of the  tissue.  5. Method according to any of the claims  cations 1 to 4, characterized in that orders  additional editing options are stored for  modifications to edition orders already present.  particular ripe.  devices for manual entry of ar points  dications 1 to 5, characterized in that it comprises  6. Method according to any one of the reven  7. Method according to any one of the claims  cations 1 to 6, characterized in that in addition to  basic and re-entry reports are stored  and are coordinated, by editing orders, with a  return ratio associated with a fabric design.  8. Method according to any one of the claims  cations 1 to 7, characterized in that the drawing  is supplied in the form of a support  data.  9. Method according to claim 8, character  laughed at by the fact that the data carrier is made up  by a perforated drawing card, an electronic memory  semiconductor or magnetic memory.  10. Method according to any one of the claims  cations 1 to 7, characterized in that the overall design is transmitted in the form of pulses of  command to a crowd forming machine for a com  direct order.  11. Method according to any one of the reven  dications 1 to 7, characterized in that the drawing  is delivered in the form of a representation  graphic on a screen, preferably with dots  of particular armor drawn in contrast points,  12. Method according to any one of claims 1 to 7, characterized in that the overall drawing is written armor line by armor line, this writing being carried out from bottom to top by numbering the lines and from left to right by numbering the columns.  13. Device for implementing the method according to any one of claims 1 to 12, characterized in that it comprises at least one calculation unit, a display screen, an input keyboard, several memories and a output unit for crowd control machine control data.