JP3038551U - Loom - Google Patents

Abstract

(57) Abstract: In a loom in which a drive unit of a dobby device is mechanically configured, even if the order of shedding motion and the order of weft selection do not match for some reason, the mismatch does not occur.
It is then automatically corrected in one complete weaving chart to prevent subsequent out-of-specification weaving. SOLUTION: A card 12 for instructing an opening movement of a warp 11 in a mechanical dobby device is provided with a loom indicator indicating a driving sequence (A, B, C, D ... ...) of wefts 4, and the loom is displayed. A display detection element 13 for reading a display is provided. In a loom equipped with a weft switching device whose drive unit is composed of a computer 18, an operation signal 2 sent from the computer 18 to the weft switching device 17 and a detection sent by the display detection element 13 by reading the weft bar display of the card An arithmetic element 19 for collating the signal 1 is provided, and the operation signal 2 is collated with the detection signal 1 to be transmitted to the weft switching device 17 as the instruction signal 3.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a loom equipped with a dobby device (hereinafter referred to as a dobby loom).

[0002]

[Prior art]

 Recently, demand for fabrics with a ground pattern that selectively uses different kinds of wefts of different colors is increasing, and a weft switching device for selectively using the different kinds of wefts is attached to a dobby loom. Is increasing. The drive unit of the weft thread switching device is electrically configured by a computer or mechanically configured by a tapet (cam) attached to the crank shaft of the loom body. Also, the drive part of the dobby device is one that is electrically configured by a computer and one that is mechanically configured by attaching irregularities corresponding to the connection points of the woven tissue chart to the card with holes or crests. is there . Therefore, a dobby loom with a weft thread switching device is one in which the drive parts of both the weft thread switching device and the dobby device are electrically configured, one in which both drive parts are mechanically configured, and one of them. Only the drive unit is electrically configured and the other drive unit is mechanically configured.

[0003]

[Problems to be solved by the device]

 In a loom in which the drive unit of the dobby device is electrically configured, it does not matter whether the drive unit of the weft switching device is electrically configured or mechanically configured. If the drive section of the machine is mechanically constructed, the order of the shedding movement of the warp threads to be performed according to the order of the wefts in the weave chart, and the weft to be performed according to the order of the wefts in the weave chart. Inconsistencies may occur in the order of selection, resulting in failure to obtain a woven fabric according to specifications. Such a discrepancy is likely to occur when a card having irregularities corresponding to the knotting points is attached to the dobby device by holes or clogs, or when loosening the woven defects of the woven fabric generated during weaving.

For example, in the case of unraveling a weaving point, in order to pull out the weft, the one-way clutch (ratchet) of the dobby device for sending the card is removed, and the loom (crank) is rotated in the reverse direction while sending the card in the reverse direction. Then, the warp yarns are reversely opened, but forgetting to reverse feed the card, or reverse feeding more cards than one weft corresponding to one weft yarn, There is a discrepancy between the order of opening movements in which the feeding direction of the card should be changed to return one loft by one weft, and the order of weft selection automatically returned by the reverse rotation of the loom.

Further, in a loom in which the drive unit of the dobby device is mechanically configured and the drive unit of the weft thread switching device is electrically configured, it is input to the computer due to lightning, external noise, voltage change, or the like. The order of weft selection that is occurring can also fluctuate, resulting in inconsistencies with the order of opening movements of the mechanically normal dobby machine.

[0006] Once such a disagreement occurs, the weft selected by the weft switching device is not struck in the predetermined weft of the weaving chart to be struck until it is discovered, and the weft is out of the standard. The woven fabric is continuously woven, resulting in a great loss.

[0007]

[Purpose of the invention]

 Therefore, in the present invention, in a loom equipped with a dobby device having a mechanical drive unit (hereinafter, referred to as a mechanical dobby device), for some reason, the order of shedding motion and the order of weft yarn selection do not match. However, the inconsistency is automatically corrected in one complete weave chart that is repeatedly woven so that non-standard woven fabrics will not be continuously woven. To do.

[0008]

[Means for Solving the Problems]

 In the mechanical dobby device according to the present invention, a card 12 for instructing the shedding motion of the warp 11 is provided with a weft bar indicating the driving order (A, B, C, D ...) of the weft 4. At the same time, it is characterized by comprising a display detection element 13 for reading the cloth bar display.

In the loom according to the present invention, a plurality of weft storage parts 15a, 15b, 15c, ... And withdrawing wefts 4a, 4b, 4c, .. A plurality of length measuring storage parts 16a, 16b, 16c, ..., and a weft switching device 17 for selectively setting the wefts 4 drawn out from the respective length measuring storage parts 16 in the openings of the warp yarns 11, A computer 18 which sends an operation signal 2 for operating the length measuring storage 16 and the weft switching device 17, and a mechanical dobby which reads the knotting point of the woven structure chart displayed on the card 12 and transmits the shedding motion to the warp 11. The card 14 has a device 14, and the card 12 shows a loom indicating the order of driving the wefts 4 (A, B, C, D ...) According to the loom A, B, C, D ... Is attached, and the display detector that reads the loom display The child 13 is attached to the dobby device 14, and is provided with an arithmetic element 19 for comparing the detection signal 1 of the display detection element 13 with the operation signal 2 of the computer 18.

[0010]

[Embodiment of the invention]

 FIG. 1 is a conceptual diagram of a loom equipped with a double-acting dobby device 14. Each card 12 has holes or crests corresponding to two loom arranged in two rows. Each time 20 rotates twice, one card 12 is sent by a one-way clutch (ratchet) 21. Reference numeral 13 denotes a sensor that reads the loom display attached to the card, and 1 denotes a detection signal that the sensor reads and outputs.

The weaving machine has four weft storage parts 15a, 15b, 15c, 15d, and four different types of weft cones of different colors are set in each loom. Reference numerals 16a, 16b, 16c, 16d are length measuring storages for pulling out and stocking the wefts 4 having a length corresponding to the weaving width from the respective weft storages 15a, 15b, 15c, 15d. Reference numeral 17 is a weft switching device for setting the weft 4 selected by the computer 18 in the opening of the warp space 11, and the set weft 4 is inserted into the opening by a rapier rod, a water jet, an air jet, or the like. It is woven into the woven cloth. The computer 18 is input with the selection order (4a, 4b, 4c, 4d, 4a, 4b, 4c, 4d) of the weft yarns 4 to be woven in each weft constituting one complete weave.

Reference numeral 19 collates the detection signal 1 transmitted from the sensor 13 with the operation signal 2 transmitted from the computer 18 for each picking cycle of the loom, and indicates the opening movement of the woven tissue sent as the detection signal 1. Wefts corresponding to the order (the order of loom A, B, C, D ... ......) and the order of loom (A, B, C, D ... ......) of the organization chart sent as the operation signal 2. 4 is a calculation element for calculating whether or not the selection order of 4 (4a, 4b, 4c, 4d, 4a, 4b, 4c, 4d) matches, and when the order of both matches, the weft switching device 17 and An instruction signal 3 is transmitted to the length measurement storage unit 16, and the length measurement storage unit 16 and the weft switching device 17 indicated by the instruction signal 3 operate to operate the required wefts 4 (4a, 4b, 4c, 4d). Is set in the opening of the warp gap 11 and the card 12 instructs It is driven into the opening of the warp space 11 that has been set.

Reference numeral 22 is an enlarged view of one complete portion of the woven fabric, which also shows one complete structure of the woven fabric. A, B, C, D, E, F, G and H are , The weft, and the cross-hatched cells indicate the knotting point where the weft 4 is above the warp, and the weft 4 is A, B, C, D, E, F, G, H in this order. It is woven.

Four cards are illustrated in the rectangular block shown as the detection signal 1. In the rectangular block shown as the arithmetic element 19, eight detection signals 1 corresponding to the weaving bar of the weave chart detected from the card 12 are read as "1A, 1B, 1C, 1D, 1E, 1F, 1G. 1H ”is attached with an alphabet, and eight operation signals 2 corresponding to the row of the weaving chart transmitted from the computer 18 are represented by“ 2a, 2b, 2c, 2d, 2a, 2b ”. , 2c, 2d ”and the alphabet is attached. Further, in the rectangular block shown as the computer 18, four kinds of different-color wefts 4a, 4b, 4c, 4d to be woven in the order of one complete weft A, B, C ... , "4a, 4b, 4c, 4d, 4a, 4b, 4c, 4d" are shown in alphabetical order according to the selected order.

In the arithmetic element 19, the detection signals (1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H) and the operation signals (2a, 2b, 2c, 2d) corresponding to each loom in one complete weaving chart. 2a, 2b, 2c, 2d) for each loom, the detection signal 1A corresponding to the first loom A in the weave chart, and the weft thread 4a to be set in the shed A at the weft thread A The operation signal 2a instructing the length measuring and storing section 16, the detection signal 1B corresponding to the second weft B in the weaving chart and the weft 4b to be set in the weft B at the weft B are measured by the weft switching device 17. The operation signal 2b for instructing the long storage section 16, the detection signal 1C corresponding to the third weft C in the weave chart, and the weft 4c to be set in the weft C at the weft C, the weft switching device 17, and the length measurement storage Actuating signal 2c instructing part 16 The detection signal 1D corresponding to the weft D, the operation signal 2d for instructing the weft switching device 17 and the length measuring storage unit 16 of the weft 4d to be set in the opening in the weft D, the fifth weft E in the weave chart. Corresponding to the detection signal 1E, the operation signal 2a for instructing the weft 4a to be set in the opening in the weft E to the weft switching device 17 and the length measuring storage unit 16, and the sixth weft F in the weave chart. The detection signal 1F and the operation signal 2b for instructing the weft 4b to be set to the opening in the weft F to the weft switching device 17 and the length measuring storage unit 16, the detection signal 1G corresponding to the seventh weave G in the weave design And an operation signal 2c for instructing the weft 4c to be set in the opening in the weft G to the weft switching device 17 and the length measuring storage unit 16, a detection signal 1H corresponding to the eighth weft H in the weave chart, and the weft Weft 4 to be set in the opening at H When the operation signal 2d for instructing the weft switching device 17 and the length measuring storage unit 16 coincides with each other, the instruction signal 3 is transmitted to the weft switching device 17 and the length measuring storage unit 16, and the loom A and B respectively. , C, D, E, F, G, and H, wefts 4a, 4b, 4c, and 4d are set in the openings and woven.

As described above, the loom mark may be attached to all the cards 12 corresponding to each loom of the loom structure chart, but is driven into the opening movement of one loom of the loom structure chart at that loom structure. If the weft thread 4 corresponds to the weft thread 4, the weft thread 4 selected in the loom and the opening of each loom performed in the following one full thread correspond to each other. It is attached only to the card 12 corresponding to one specific loom in 22, and the operation signal 2 transmitted from the computer 18 in that particular loom selects the weft thread 4 to be driven in that particular loom. Whether or not the operation is performed may be checked by the arithmetic element 19. A magnet, a reflection plate, a conductive plate, etc. can be used for such a weaving bar display, but in consideration of oil stains on the card 12 during use, a magnet that does not impair the display function due to oil stains is used. It is recommended that a magnetic sensor that senses magnetism be used for the display detection element 13 by embedding it in the end surface or the end side surface of the card 12 to display a weaving pattern.

[0017]

[Effect of the invention]

 According to the present invention, the weft yarn 4 selected by the weft yarn switching device 17 for each weft of the weave structure is generated by the weft switching device 17 according to the detection signal 1 which the display detection element (sensor) 13 reads and outputs the weft bar indication of the card 12. Since it is possible to check whether or not it is a predetermined one, the order of shedding motion A, B, C, ... H and the order of weft selection a, b, c, d, a Non-standard fabrics will not be continuously woven due to inconsistency with b, c and d.

Then, when the weft switching device 17 driven by the computer 18 is attached to the dobby loom equipped with the display detection element 13, the operation signal 2 transmitted from the computer 18 to the weft switching device 17 is displayed and detected. It is checked by the detection signal 1 transmitted from the element 13, and when the computer 18 transmits the operation signal 2 which does not correspond to the detection signal 1, the computer 18 changes the transmission order of the operation signal 2 to correspond to the detection signal 1. If the computer 18 sends the actuation signal 3 to perform, even if for some reason there is a discrepancy between the opening movement sequence A, B, C, ... H and the weft selection sequence a, b, c, d. However, the location of the defect caused by the disagreement stops in a very limited place, which is within one perfection of the woven structure where the defect occurs, and the defect occurs. Non-standard woven fabric is continuously woven due to the occurrence of a large loss.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a loom including a dobby device according to the present invention.

[Explanation of symbols]

 1 detection signal 2 operation signal 3 instruction signal 4 weft 11 warp 12 card 13 display detection element 14 dobby device 15 weft storage section 16 length measurement storage section 17 weft switching apparatus 18 computer 19 computing element 20 crank 21 ratchet 22 one complete

Claims (2)

[Utility model registration claims] 1. A display detection element (13) for attaching a weft indicator indicating the order of driving the wefts (4) to a card (12) for instructing the opening movement of the warp (11) and reading the weft indicator. A mechanical dobby device characterized by being provided with. 2. A plurality of weft storage parts (15), and a plurality of length measurement storage parts (16) for pulling out and storing the wefts (4) of a predetermined length from each weft storage part (15), The wefts (4) drawn out from the respective length measuring storages (16) are replaced with warp (11).
Weft switching device (17) that is selectively set in the opening of
A computer (18) for transmitting an operation signal (2) for operating the measuring storage (16) and the weft switching device (17).
And a weaving machine having a mechanical dobby device (14) that reads the knotting points of the weave chart displayed on the card (12) and transmits the shedding motion to the warp yarn (11), The card indication (12) shown is attached to the card (12), and the display detection element (13) for reading the cloth indication is attached to the dobby device (14), and the detection signal of the display detection element (13) ( 1) and the computer (1
A loom comprising an arithmetic element (19) for collating the operation signal (2) of 8).