US3786987A - Method of automatically making pattern cards for jacquard looms - Google Patents

Method of automatically making pattern cards for jacquard looms Download PDF

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US3786987A
US3786987A US00184925A US3786987DA US3786987A US 3786987 A US3786987 A US 3786987A US 00184925 A US00184925 A US 00184925A US 3786987D A US3786987D A US 3786987DA US 3786987 A US3786987 A US 3786987A
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pattern
signal
register
design
color
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A Shibuya
S Nishikawa
H Akami
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DIRECTOR GENERAL IND SCIENCE A
DIRECTOR GENERAL IND SCIENCE AND TECHN JA
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C17/00—Card-punching apparatus

Definitions

  • ABSTRACT A method of automatically making pattern cards for Jacquard looms or for controlling the operation of the loom directly in which the pattern or design to be woven is scanned directly and signals corresponding to location and color of changes in such pattern or design are fed to acomputer for controlling a card punching machine or the operation of the loom directly.
  • the Jacquard weaving machine is used for pattern weave wherein the machine gives suitable shedding motion to the warp and controls color and pattern warp by warp, thus weaving a piece of cloth with a complicated pattern.
  • This weaving machine requires many numbers of pattern cards for the control of color and pattern.
  • the pattern card is made in such a manner that a design paper is drawn based on an original plan and weave texture, and a card is punched manually to figure the desired pattern on the card by the use of pattern card punching machine.
  • This work requires highly specialized skill and thus it has been impossible to efficiently produce the pattern cards or to produce the pattern cards on an industrial basis.
  • a considerable length of time is needed for change or modification of pattern because pattern change or modification must be made card by card.
  • the textile industry has been extremely short of men skilled in the pattern card making and the supply of pattern cards has become limited. Under the circumstances, realization of an easily operable, automatic pattern card making apparatus is an urgent requirement in the field of textile industry.
  • An object of this invention is to provide a method of automatically making the pattern cards for the Jacquard weaving machine based on the predetermined pattern and textile design.
  • the automatic pattern card making method of this invention is a fully automated method in which the desired pattern card is produced directly according to the initially drawn design and textile design.
  • the method of this invention is characterized by storing in an information medium pattern signals read directly from the original design by an optical means; identifying the stored pattern signals according to colors while selecting, among signals converted from a plurality of textile designs which have been stored previously in the information medium, the desired signals according to the identified colors; replacing the pattern signals by the signals selected as above to form figure signals; and punching a pattern card according to the figure signals or storing the figure signals in the information medium and then making a pattern card by sequentially retrieving the stored figure signals.
  • pattern cards can be manufactured automatically, without making a design paper in the process of making pattern cards in the prior art or without making a secondary design drawn on manual procedure by rewriting the original design with a special ink, by using the initial design drawn with commercially available paints and the like without being strictly limited to the size of the design.
  • multiple colors can be discriminated from one another according to this invention and, hence, pattern cards specifically adapted for weaving textiles with extra thin, multicolor weft to form a pattern in vignette style on fabric can automatically be punched.
  • the efficiency of pattern card making can be markedly increased by the use of an optical device in combination with an electronic computer for judging the color component of the pattern signal.
  • FIG. 1 there is shown a system embodying this invention wherein the reference numeral 1 denotes a design reading device, 2 a pattern signal reading device, 3 a design paper calculating device, 4 and 5 pattern signal registers, 6 and 7 color decision registers, 8 a textile register, 9 a shuttle change register, 10 a figure register, 11 a control device, and 12 a card punching machine.
  • the reference numeral 1 denotes a design reading device
  • 2 a pattern signal reading device
  • 3 a design paper calculating device
  • 4 and 5 pattern signal registers 6 and 7 color decision registers
  • 8 a textile register
  • 9 a shuttle change register
  • 10 a figure register
  • 11 a control device
  • 12 a card punching machine
  • FIGS. 2a and 2b show in comparison an example of colored design and the pattern signal provided from the design reading device of this invention.
  • FIGS. 3a and 3b show in comparison a textile design and its signal train.
  • FIGS. 4a and 4b also show in comparison a textile design and its signal train.
  • the design reading device 1 is operated in such a manner that a pattern signal is formed from a given design by an optical means and is stored in a memory medium such as perforation tape or magnetic tape.
  • the pattern signal reading device 2 connected to the design reading device is synchronized with the punching machine at each scanning line of the design, reads said pattern signal, and gives this pattern signal to the design paper calculating device 3 where the pattern signal is calculated according to the ratio between the warp and weft based on the textile design specification, the result of calculation being stored in the first pattern signal register 4.
  • This pattern signal register consists of a certain number of words equal to the number of needles of Jacquard. One word has a sufficient number of bits for coding the necessary number of colors.
  • the second pattern signal register 5 and the second color decision register 6 are connected in parallel to the first pattern signal register 4.
  • the first color decision register 7 is connected to the second pattern register 5.
  • the content of the first pattern signal register 4 is supplied to the second pattern signal register 5 by the next synchronous signal, and is shifted sequentially at the first color decision register 7, which consists of a color decision circuit and a certain number of words or bits equal to the number of needles of Jacquard.
  • the first color decision register 7 is operated in such a manner that color decision on the information shifted from the second pattern signal register 5 is made on each specific color designated by the control device according to AND logic, the contents of the second pattern signal register 5 are selectively stored according to the specific colors, the stored datais combined with the design information supplied from the textile register 8, a necessary number of AND operations is done on the combined data, and all the given data are converted into pattern signals.
  • the textile register 8 previously stores the desired textile design as an information and supplies it to the first color decision register 7 in response to the specific color to be determined therein.
  • the figure signal register is connected to said first color decision register 7 and receives said converted pattern signal-synchronously with the motion of the knife of the pattern card punching machine according to the format determined by the arrangement of the knives of the pattern card punching machine.
  • the figure signal register 10 then sends out the signal as selection signal of the knife of the pattern card punching machine.
  • the pattern card punching operation is performed for each color of the pattern signal register and thus it is possible to punch the card for all the colors by combining the operations of individual colors.
  • the signal regarding the shuttle change necessary for the selection of the weft must be treated as a signal of one pick before a given signal for punching the pattern card.
  • This operation is performed in the system branched from the first pattern signal register 4.
  • the pattern signal of the first pattern signal register 4 is selectively stored in the second color decision register 6 according to specific colors as in the case of the first color decision register 7.
  • This second color decision register 6 has a color decision circuit and consists of a certain number of words corresponding to the necessary number of colors. One word has the same number of bits as that of the first pattern signal register 4.
  • the second color decision register 6 is connected to a shuttle change register 9 where the pattern signal is converted into a shuttle change signal corresponding to the result of the color decision and is supplied to the figure signal register 10.
  • the figure signal register 10 is connected to a pattern card punching machine 12 where the pattern card is punched by the knife operated by the selection signal given from the figure signal register 10.
  • the apparatus further includes a control device 11 in which the signal sent from the pattern card punching machine 12 and indicating that the punching operation is available is confirmed, and transmission of the figure signal to the pattern card punching machine from the figure signal register 10 are controlled. Also, control on the selection of color contained in the pattern signal sent from the second pattern signal register 5 to the first decision register 7, control on the selection of the signals converted from the textile design which correspond to the color signal stored in the first color decision register 7, and control on conversion of the contents of the register 7 are done by control signal of the control device 1]. Signal exchange and necessary timing are controlled for the first pattern signal register 4 and for the second color decision register 6 by the control device 11.
  • the control signal is formed in the control device 1 1 based on that data and sampling of the pattern signal is controlled in the design paper calculation device 3 according to the control signal.
  • the control device 11 confirms the pattern signal corresponding to one pick and controls the reading device 2.
  • the control device 11 controls selection of the color of the signal given to the second color decision register 6 from the first pattern signal register 4 and also controls selection of the color to be sent to the shuttle change register 9.
  • the control device 1 1 controls selection of the shuttle change register 9 according to the color selected by the second color decision register 6.
  • the apparatus arranged as above is. operated in the following manner.
  • a pattern signal corresponding to the first shuttle is supplied to the first pattern signal register 4 by way of the design reading device 1, pattern signal reading device 2 and design paper calculation device 3, no pattern signal is given to the second pattern signal register. 5, and the register 5 is not initiated. Therefore, the content of the second pattern signal register 5 is used. as a dummy for waste punch on the card.
  • the color signal obtained by the second color decision register 6 is selected in the order of the decision or in an arbitrary order and sent to the shuttle change register 9 for punching on the card, the one pick previous color signal will be punched out on the card.
  • the registers 4, 5, 6 and 7 are given subsequently the succeeding signals via the control device 11 at the time the necessary operation is over.
  • the pattern signal is read repeatedly as many times as the number of colors of the second pattern signal register 5 and the read signals are sent to the first color decision register 7.
  • the register 5 is given a new signal from the first pattern signal register 4 at the time the repeating operation is finished.
  • the first pattern signal register 4 and the second color decision register 6 receives a new signal from the former upon completion of the operation where the signals corresponding to the number of colors are sent to the shuttle change register 9.
  • the signal passing through the second pattern signal register 5 and the first color decision register 7 is supplied to the figure signal register 10, always one pick behind the signal passing through the second color decision register 6 and shuttle change register 9.
  • the two signals are combined together and converted into a selection signal-for pattern card punching.
  • the information at the figure signal register is temporarily stored and collated to the pattern card provided by the pattern card punching machine to make it possible to check whether the necessary pattern is correctly punched on' the card. If necessary, the signal obtained by the figure signal register 10 is stored in an arbitrary memory medium such as perforation tape or magnetic tape, and the stored data is read for card punchingwhen' desired.
  • a design is formed by combining lines, groups of lines and colors. In this example, seven to twelve colors are used and a multicolor design reading device is employed.
  • FIGS. 2a and 2b show in comparison a multicolor design of plant consisting of three colors, red, green and white, and the pattern signal provided by the multicolor design reading device.
  • the red part indicates a flower, green a leaf and white acloth.
  • the device divides the design longitudinally by a certain number of scanning lines at certain definite intervals and moves the design and scans the design in succession from one end (left) to the other (right) along the scanning lines.
  • This scanning is made in such a manner that a light beam from a fixed point is irradiated on the design and the color difference is indicated in terms of a pulse according to the quantity ratio of the reflected light (or transmission light).
  • the uppermost line indicates the first scanning line: the line ABCD, the i' scanning line, and the line EFGHIJKL, the n' scanning line.
  • the whole of the first line represents white without a pulse.
  • i" line AB is white without a pulse
  • BC is red with a pulse corresponding to red
  • CD is white at the height of AB.
  • EF white without a pulse
  • F0 green with a pulse corresponding to green
  • GH white at the height of EF
  • HI green with a pulse corresponding to green
  • I] is white at the height of EF
  • JK is green with a pulse at the height of FG
  • KL white at the height of EF.
  • the scanning density of one complete design can be adjusted by mechanically changing the feed speed of the machine.
  • the pattern signal is also possible to correspond the pattern signal to the quantized code provided by an electronic computer.
  • the pattern signal is transferred to a paper tape and supplied as an input signal to the computer.
  • the textile design to be supplied to the computer is drawn previously corresponding to the design.
  • the shuttle of the weft against the warp is converted into a design signal corresponding to one scanning line.
  • This design signal can be supplied in the form of a code to the computer.
  • FIGS. 3a and 3b show figure diagrams of the design shown in comparison to that in FIG. 2a in comparison with a design signal concisting of signal trails obtained according to the figure diagram. It is assumed that the cloth (white) of the plant design shown in FIG. 2a is of plain weave, the flower (red) is of sateen weave, and the leaf (green) is of twill weave.
  • FIGS. 3a and 3b show in comparison the figure diagram of the plain weave (cloth, white) and the signal trains obtained from this textile design.
  • FIG. 3a is a typical representation of plain weave and FIG. 3b shows the signal corresponding to the plain weave. The signal as-in FIG. 3b is continuously repeated so long as the plain weave portion continues.
  • FIG. 4a" and 4b" show in comparison the textile design of the sateen weave (flower, red) and the signal trains obtained therefrom.
  • the 7 X 7 matrix shown in FIG. 4a" is determined so as to indicate one complete, and the individual rows correspond to wefts.
  • the symbol X in FIG. 4a" represents the part appearing on the surface of the warp.
  • FIG. 4b" shows that a pulse comes out each time the X part appears.
  • the textile design of the portions such as the plain weave, the sateen weave and the twill weave as shown in FIGS. 3a and 4a" make up the signal trains in. the corresponding positions as in FIGS. 3b and 4b".
  • a texture signal indicating one complete textile design as a whole is organized.
  • This signal converted from textile design is set into the information medium corresponding to the quantized code of the computer or the like and combined with the pattern signal and supplied to the computer.
  • these signals are combined to form the so-called weave design diagram by the memory device, and the resultant signal is used as the figure signal.
  • the pattern signal is discriminated with respect to color according to the information medium, the necessary signal is selected according to the discriminated color from the signals converted from the textile design and the pattern signal is replaced with the selected signal (converted from the textile design) and used as the figure signal.
  • the pattern card punching machine is controlled directly by the output command from the computer whereby the pattern card is produced.
  • the output command has the function to convert the matrix signal into a series signal and to store it temporarily in a memory medium such as paper tape.
  • the stored data is applied at need to a pattern card punching machine to manufacture a pattern card having a definite textile design.
  • Hitachi Hitac 10 made by Hitachi Manufacturing Works is used for the signal formation, signal conversion and the signal reading device, and the piano machine made by Yamakawa Kikai is used for the pattern card punching machine, with suitable modifications adapted to the purpose of this invention.
  • the pattern analyzer made by Chuo Denshi is used for the design reader.
  • the flower pattern as in FIG. 2a is used.
  • This pattern is treated by the design reading device 1 where the design is scanned laterally at certain definite intervals and the color variation on the scanning line is obtained in terms of a pulse as shown in FIG. 2b.
  • the pulses A'B'B'D' and EFG'H l'J'K'L' as in FIG. 2b are obtained corresponding to the scanning lines ABCD and EFGHHKL as in FIG. 2a.
  • a pattern signal corresponding to the specific design is formed.
  • the density of scanning of the design as a whole, namely, the interval of the scanning lines, can be adjusted by mechanically changing the feed speed.
  • the pattern signal formed in the manner as above is transferred to a memory medium such as perforation tape and magnetic tape and then is supplied to the subsequent pattern signal reading device 2 at each scanning of the design via the control device, being synchrous with the operation of the pattern card punching machine.
  • the pattern signal passing through the pattern reading device is sampled according to the data obtained from the result of the shuttle selection given previously by a design paper calculation device 3 and then stored in the first pattern signal register.
  • registers 4, 6 and 7 are in the cleared state.
  • the registers 4, 5, 6, 7 and 10 are cleared via the control device 11 after the necessary signals have been taken out from these registers. Then the next signals are stored in these registers.
  • the signals converted from the textile design which correspond to the initial value (related not to the colors, red, green and white, of the specific design but to such a color as blue) of the register 5 and those which correspond to the colors red, green and white are stored in the register 8.
  • the signal of the register 9 corresponding to the clear state of the register 6 is not stored in the register 8.
  • the pattern signal such as AB'C'D' corresponding to the first scanning line of the patterned fabric is stored as A'B' (white...white), B'C' (red red) and C'D' (white white) in the register 4 by way of the devices 1, 2 and 3.
  • the register 6 When the pattern signal is stored in the register 4, the register 6 is in the cleared state to be ready to accept a color signal from the register 4. Therefore, the colors (white and red) of the first pattern signal for which the color decision has been made in the register 4 are stored in the register 6.
  • the initial value such as blue is stored in the register 5.
  • This content of register 5 is stored in the register 7 after color decision and then is collated with the content of the register8. Since the signal converted from the textile design which corresponds to the initial value (such as blue) of the register 5 is stored in the register 8, the initial value of the register 5 is combined with the signal corresponding to the contents of the register 8, thereby forming a figure signal.
  • This figure signal is stored as a dummy in the register 10.
  • the first color namely white (AB) of the pattern signal (A'B'C'D') is supplied as a shuttle change signal to the register 10 via the registers 6 and 9.
  • the colors stored in the register 6 are cleared in sequence.
  • the register 7 is also cleared.
  • the register 5 is cleared via the control device 11.
  • the pattern signals (white, red and white) of the register 4 are stored in the register 5 and the register 4 is cleared.
  • the pattern signals (E'F'GH'IJKL) corresponding to the second scanning line are supplied in sequence to the register 4, and the storage and clearance operation is repeated.
  • the data (for example, white is plain weave, red is sateen weave) regarding the figure selected previously corresponding to the colors are supplied from the register 8 to the register 7 where the figure signal corre sponding to the first color, namely white, is punched out.
  • This operation continues for the period (AB) the white signal is being sent out.
  • the white signal is changed to the red signal (B'C)
  • the collation is not coincident and, therefore, no figure signal is delivered.
  • it come to the white (CD) the operation is resumed.
  • the data regarding white (AB' and C'D) among the pattern signal A'B'CD corresponding to the scanning line ABCD is first formedas a figure signal. After completion of the treatment on white, the same treatment is done on red.
  • the figure signal formed in the above manner is supplied as the selection signal of the knife of the pattern card punching machine by way of the register 10 whereby the pattern card is punched according to the corresponding colors.
  • the first punched card is given as a dummy.
  • the second et seq. cards regular pattern cards containing all the information such as box motion can continuously be obtained.
  • This invention is capable of providing quickly and directly from the original design various pattern cards applicable to such simple weaves as floor mats, as well as to complicated multicolor weaves such as Nishijin textiles (highly complicated silk weaves).
  • this invention can be said to be an epoch-making invention in the point that pattern card making is perfectly automatic and the need of specialized skill is eliminated.
  • the pattern signal train read at a reasonable accuracy is sampled according to the design paper calculation and, hence, a design with an arbitrary size can be used. Either an analog or digital input signal can be used for this purpose.
  • a mechanism for punching the holes for connecting the pattern cards or peg (of Jacquard cylinder) of the pattern card, or automatic cutting mechanism can be controlled by this invention. This makes it possible to automate the auxiliary procedures necessary for the card punching operation.
  • the figure signal formed in the figure signal register 10 is supplied to the needle selection device (for example, an actuator comprising a solenoid valve, solenoid valve drive power source, memories corresponding to the number of needles of Jacquard, etc.) being synchronous with the needle of the Jacquard weaving machine under the control of the control device, and the needle of Jacquard machine is selected directly by the use of the figure signal.
  • the needle selection device for example, an actuator comprising a solenoid valve, solenoid valve drive power source, memories corresponding to the number of needles of Jacquard, etc.
  • a method of making pattern cards for operating a Jacquard weaving machine to weave a selected textile design comprising the steps of:

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US00184925A 1970-09-29 1971-09-29 Method of automatically making pattern cards for jacquard looms Expired - Lifetime US3786987A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019036A (en) * 1974-08-30 1977-04-19 Mitsubishi Rayon Co., Ltd. Method for the rational application of patterning signals to a patterning device, tools adapted to produce a pattern and an apparatus for carrying out the same
JPS5394649A (en) * 1977-01-28 1978-08-18 Dainippon Ink & Chemicals Device for color separation
JPS5394651A (en) * 1977-01-28 1978-08-18 Dainippon Ink & Chemicals Automatic device for color sepation
JPS5394650A (en) * 1977-01-28 1978-08-18 Dainippon Ink & Chemicals Automatic device for color sepation
US20040027623A1 (en) * 2000-09-29 2004-02-12 Alessandro Saporiti Method and unit for the production of images with high resolution in jacquard fabric
ES2289929A1 (es) * 2006-06-01 2008-02-01 Patrons Roka, S.C.P. Procedimiento para fabricacion de patrones para encaje de bolillos.
US20080170757A1 (en) * 2006-01-13 2008-07-17 Johny Debaes Method to avoid mixed contours in pile fabrics
US20100102115A1 (en) * 2008-10-28 2010-04-29 Vistaprint Technologies Limited Method and system for mass production of variable shaped products

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090550A (en) * 1961-06-06 1963-05-21 Mecaniques Verdol Soc D Machines for the preparation of cards for jacquards
US3319881A (en) * 1965-06-04 1967-05-16 Pine State Knitwear Company Pattern sheet coding apparatus
US3555852A (en) * 1965-12-11 1971-01-19 Morat Gmbh Franz Method and apparatus for recording a program representing a sample pattern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3090550A (en) * 1961-06-06 1963-05-21 Mecaniques Verdol Soc D Machines for the preparation of cards for jacquards
US3319881A (en) * 1965-06-04 1967-05-16 Pine State Knitwear Company Pattern sheet coding apparatus
US3555852A (en) * 1965-12-11 1971-01-19 Morat Gmbh Franz Method and apparatus for recording a program representing a sample pattern

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019036A (en) * 1974-08-30 1977-04-19 Mitsubishi Rayon Co., Ltd. Method for the rational application of patterning signals to a patterning device, tools adapted to produce a pattern and an apparatus for carrying out the same
JPS5394649A (en) * 1977-01-28 1978-08-18 Dainippon Ink & Chemicals Device for color separation
JPS5394651A (en) * 1977-01-28 1978-08-18 Dainippon Ink & Chemicals Automatic device for color sepation
JPS5394650A (en) * 1977-01-28 1978-08-18 Dainippon Ink & Chemicals Automatic device for color sepation
US20040027623A1 (en) * 2000-09-29 2004-02-12 Alessandro Saporiti Method and unit for the production of images with high resolution in jacquard fabric
US7272244B2 (en) * 2000-09-29 2007-09-18 Brevitex Etablissement Pour L'exploitation De Brevets Textiles Method and unit for the production of images with high resolution in jacquard fabric
US20080170757A1 (en) * 2006-01-13 2008-07-17 Johny Debaes Method to avoid mixed contours in pile fabrics
US8385587B2 (en) * 2006-01-13 2013-02-26 N.V. Michel Van De Wiele Method to avoid mixed contours in pile fabrics
ES2289929A1 (es) * 2006-06-01 2008-02-01 Patrons Roka, S.C.P. Procedimiento para fabricacion de patrones para encaje de bolillos.
ES2289929B1 (es) * 2006-06-01 2009-02-16 Patrons Roka, S.C.P. Procedimiento para fabricacion de patrones para encaje de bolillos.
US20100102115A1 (en) * 2008-10-28 2010-04-29 Vistaprint Technologies Limited Method and system for mass production of variable shaped products
US8783553B2 (en) * 2008-10-28 2014-07-22 Vistaprint Schweiz Gmbh Method and system for mass production of variable shaped products

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