JP2014118657A - Electronic jacquard machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic jacquard machine improving reliability more than conventional ones and capable of suppressing a production cost.SOLUTION: An electronic jacquard machine 10 has a vertical needle selection mechanism 40 per vertical needle row 30L. Each vertical needle selection mechanism 40 includes: a relay needle row 60L comprising a plurality of relay needles 60 capable of vertically moving; a relay lever row 70L comprising a plurality of rotational relay levers 70; and an elevation unit 50 supported on a fixed base 11 so as to be vertically movable. The elevation unit 50 includes a plurality of pressure switch members 54 capable of switching the positions between a press position and a press avoidance position, and a plurality of piezo-electric elements 53 that are driven based on an electronic data to switch the position of the pressure switch member 54. That is, the electronic jacquard machine 10 has a structure in which a vertical needle selection mechanism 40 is provided per vertical needle row 30L, and yet has a "vertical needle horizontal pressure movement mechanism" demonstrated in a conventional modified jacquard machine.

Description

  According to the present invention, a warp group connected to a warp group for weaving a woven fabric is divided into first and second warp needle groups one by one based on electronic data, and only the first warp needle group is pulled up to raise the warp. The present invention relates to an electronic jacquard machine that divides a group into upper and lower parts and enables weft to be woven between the divided warp groups.

  A jacquard machine is a weaving machine that was widely used in the era when the textile industry was thriving, and the jacquard machine (hereinafter referred to as “initial type jacquard machine”) at the time of its spread was A plurality of vertical needle rows composed of vertical needles are provided, and the horizontal needle rows that are abutted from the lateral sides of the vertical needle rows are shifted in the vertical direction so that the plurality of horizontal needles are arranged in a matrix. Then, a punch card is pressed against the rear end portion of the horizontal needle group arranged in the matrix, and only a part of the horizontal needle groups that are not opposed to the punch holes are horizontally moved to move the vertical needle group to the first and second needle groups. The first vertical needle group remaining in the original position was pulled up by the lifting bar. The punch card described above is pressed against the horizontal needle group using the power of the same power source as the lifting bar.

  Later, modified Jacquard machines became popular. The modified jacquard machine, also called the "direct jacquard machine", is a retrofit that eliminates the punch card of the existing initial jacquard machine and allows the slide unit to move horizontally behind the horizontal needle group. It is. Specifically, the slide unit is equipped with a plurality of press switching members and a plurality of piezoelectric elements corresponding to the horizontal needle group, and the drive press switching member is moved to the pressing position by the piezoelectric elements based on the electronic data. It was the structure switched to a press avoidance position. When the slide unit horizontally moves to the horizontal needle group side with the same power source as the lifting bar, the pressing switch member at the pressing position horizontally moves the horizontal needle to move the vertical needle group to the first and second vertical bars. They were divided into needle groups (see, for example, Patent Document 1).

  Apart from the above-mentioned modified jacquard machine, there is also known a jacquard machine in which the horizontal needle is abolished together with the punch card and the electronic vertical needle sorting mechanism is provided for each vertical needle row. The card machine is generally called an “electronic jacquard machine”. Further, as shown in FIG. 11, in the conventional electronic jacquard machine, as the vertical needle selection mechanism, a plurality of cam protrusions 1 are moved by the power of the voltage element, and each of the cam protrusions 1 and the vertical needle group is moved vertically. A so-called “longitudinal needle sliding contact moving mechanism”, which is divided into first and second vertical needle groups by sliding contact with the sliding contact projection 3 provided on the needle 2 (see, for example, Patent Document 2). ). The above-described modified jacquard machine has a first needle and a second needle as a vertical needle selection mechanism by pressing and moving a part of the vertical needle group from the horizontal direction with the power of the same power source as the lifting bar as described above. The so-called “longitudinal needle horizontal press moving mechanism” is used, which is divided into the vertical needle group.

Japanese Patent No. 4747308 (FIGS. 1, 2, and 3)

JP 2001-329445 A (FIGS. 1 and 2)

  By the way, the electronic jacquard machine has an advantage that the horizontal needle group and the vertical needle group do not have a complicated structure like the above-described modified jacquard machine. However, in the above-described conventional electronic jacquard machine, slight shape errors and positional deviations of the cam protrusion 1 and the sliding contact protrusion 3, and wear due to aging are greatly reflected in the position of the hook 4 of the vertical needle 2. As a result, there has been a problem that the vertical needle group cannot be divided into the first and second vertical needle groups according to the electronic data. In addition, there is a problem that high accuracy is required for molding and positioning of the cam protrusion and the sliding contact protrusion, and the manufacturing cost increases.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electronic jacquard machine capable of improving the reliability and suppressing the manufacturing cost.

  In order to achieve the above object, an electronic jacquard machine according to the invention of claim 1 is characterized in that a vertical needle row is formed by arranging a plurality of vertical needles supported in a vertically movable manner on a fixed base in a first horizontal direction. Provided in a plurality of rows in a second horizontal direction perpendicular to one horizontal direction, and a lifting bar extending in the first horizontal direction is arranged opposite to each vertical needle row, and a hook protruding from each vertical needle is located above the lifting bar The vertical needle selection mechanism provided for each vertical needle row is operated based on the electronic data stored in advance, and a portion of the vertical needle rows are pressed in the second horizontal direction to The vertical needle group is divided into a first vertical needle group and a second vertical needle group, and the first vertical needle group is engaged with the hook of the first vertical needle group in the process in which the elevating bar is raised by receiving power from the power source. By pulling up the needle group, the warp group supported by the lower end of the vertical needle group is divided into upper and lower parts, and the warp parts separated into upper and lower parts. In the electronic jacquard machine that allows wefts to be woven between groups, each vertical needle sorting mechanism is arranged on the opposite side of the vertical needle row with the lifting bar interposed therebetween, and is supported on the fixed base so that it can move up and down. A relay needle row comprising a plurality of relay needles, and a pivot shaft that is disposed above or below the relay needle row and supported by a fixed base and pivots about a pivot shaft extending in the first horizontal direction. One end of the relay lever is pressed by the relay needle and the other end away from the rotation shaft presses the vertical needle, and the other side of the relay lever row sandwiches the relay needle row The lifting unit is supported by a fixed base and is moved up and down by receiving power from the same power source as the lifting bar, and a plurality of lifting units corresponding to each relay needle in the relay needle row are provided. The pressing position facing the needle in the vertical direction and the pressing position A plurality of pressing switching members that can reciprocate between the pressing avoidance positions shifted laterally, and a plurality of lifting / lowering units corresponding to the plurality of pressing switching members, driven based on electronic data, And a plurality of piezoelectric elements that switch the switching member between a pressing position and a pressing avoidance position, and when the lifting unit moves to the relay needle row side, the pressing switching member arranged at the pressing position presses the relay needle. It is characterized in that the relay lever is rotated.

  According to a second aspect of the present invention, in the electronic jacquard machine according to the first aspect, each vertical needle is formed by bending a wire having a circular cross section into a hairpin shape, and the first and second straight portions upward from the bent portion. The fixed base has a structure in which the vertical needles are elastically deformed with the first and second straight portions of the vertical needles sandwiched in the second horizontal direction. A vertical needle guide portion is provided to prevent lateral displacement across the first and second straight portions in the horizontal direction, and the hook is a first straight portion disposed on the lifting bar side of the first and second straight portions. It is characterized in that it is provided with a warp holder having a ring part for bending a warp thread in the middle, which is connected to the bent part of each vertical needle and extends downward.

  According to a third aspect of the present invention, in the electronic jacquard machine according to the second aspect, the elevating unit, the relay needle row, and the relay lever row are arranged in this order from above, and are inserted through the relay needles, respectively. A plurality of relay needle urging compression coil springs for urging the needle upwards are provided, and the relay lever is a rotating vertical member extending in parallel with the first linear portion of the vertical needle in an origin posture not pressed by the relay needle. A substantially L-shape having a side and a rotating horizontal side extending from the upper end of the rotating vertical side to the opposite side of the first linear portion, and an intermediate portion of the rotating horizontal side or a rotating horizontal side A rotating shaft is arranged at the intersection of the side and the rotating vertical side, urged toward the origin posture side by its own weight, and the end of the rotating horizontal side is pressed from above by the relay needle so that the rotating vertical side is It is characterized in that the first straight portion of the vertical needle is pressed to the side away from the lifting bar.

  The invention of claim 4 is characterized in that, in the electronic jacquard machine according to any one of claims 1 to 3, the fixed base is divided into a plurality of divided bases for each vertical needle row.

[Inventions of Claims 1 and 2]
Since the electronic jacquard machine according to the first aspect has a structure including a vertical needle sorting mechanism for each vertical needle row, the structure can be simplified as compared with the conventional modified jacquard machine. Each vertical needle selection mechanism includes a relay needle row made up of a plurality of relay needles that can move up and down, a relay lever row made up of a plurality of turnable relay levers, and a lift that is supported by a fixed base so as to move up and down. Unit. The elevating unit includes a plurality of pressing switching members that can be switched between a pressing position and a pressing avoiding position, and a plurality of piezoelectric elements that are driven based on electronic data and switch the positions of the pressing switching members. Then, the elevating unit receives power from the same power source as the elevating bar and moves to the relay needle side, and the press switching member arranged at the pressing position presses the relay needle to rotate the relay lever, and the rotation The relay lever presses the vertical needle. Thereby, the vertical needle group is divided into a first vertical needle group and a second vertical needle group.

  In other words, the electronic jacquard machine of the present invention has a structure that includes a vertical needle selection mechanism for each vertical needle row, but also includes a “vertical needle horizontal pressing movement mechanism” that has been proven in a conventional modified jacquard machine. Therefore, it is possible to adopt the vertical needle structure that has been proven in the modified jacquard machine and the initial jacquard machine. As a result, it is possible to increase the reliability and suppress the manufacturing cost as compared with the conventional electronic jacquard machine.

  Here, in the electronic jacquard machine of the present invention, a wire having a circular cross section is bent into a hairpin shape, and the first and second straight portions are extended upward from the bent portion and are opposed in the second horizontal direction. A vertical needle having a structure in which a hook is formed by bending the upper end portion of the first linear portion arranged on the lifting bar side of the first and second linear portions is particularly suitable (invention of claim 2). Since the vertical needle is sandwiched by the vertical needle guide portion in the first horizontal direction to prevent lateral displacement, the vertical needle can be stably moved up and down. Further, since the vertical needle is sandwiched by the vertical needle guide portion in the second horizontal direction and elastically deformed, the hook can be stopped at the upper position of the lifting bar. When the relay lever is rotated by being pushed by the relay needle, the first straight portion of the vertical needle is pressed to the side away from the lift bar by the relay lever, and the hook is shifted from the upper position of the lift bar. Accordingly, the vertical needle group is divided into a first vertical needle group in which the hook is left at the upper position of the lifting bar and a second vertical needle group in which the hook is shifted from the upper position of the lifting bar. Ascending, only the first warp needle group is pulled up, and the warp group is divided up and down.

[Invention of claim 3]
According to the configuration of claim 3, when the elevating unit is lowered, the pressing switching member arranged at the pressing position pushes the relay needle downward, and the relay needle rotates the relay lever having a substantially L shape. Press the side down. Then, the relay lever is rotated so that the rotation vertical side comes into contact with the first straight portion of the vertical needle and presses the first straight portion toward the side away from the lifting bar. On the other hand, when the lifting unit is lowered, the press switching member arranged at the pressing avoidance position does not push the relay needle downward, so that the vertical needle is not pressed by the relay lever. Thereby, the vertical needle group is divided into a first vertical needle group and a second vertical needle group. When the lift unit is raised, the relay needle that has been pushed down by the lift unit is moved upward by the relay needle biasing compression coil spring to release the relay lever from being pressed by the relay needle. It rotates to return to the home position, and the pressing of the vertical needle (second vertical needle group) by the relay lever is released.

[Invention of claim 4]
According to the configuration of the fourth aspect, since the fixed base is divided into a plurality of divided bases for each vertical needle row, the vertical needle row can be arbitrarily arranged in the second horizontal direction by adding or reducing the divided base. Can be changed.

(A) Conceptual diagram of electronic jacquard machine and loom, (B) Conceptual diagram of vertical needle group Conceptual diagram of an electronic jacquard machine composed of multiple modules Module perspective view Enlarged perspective view of the module Front view of module Cross section of lifting unit Front view of switching movable part and relay needle row Front view of switching movable part and relay needle row (A) Side sectional view of the vertical needle sorting mechanism before the lifting unit is lowered, (B) Side sectional view of the vertical needle sorting mechanism in a state where the lifting unit is lowered, (C) Vertical needle in a state where the vertical needle is raised. Side sectional view of sorting mechanism (A) Side cross-sectional view of the vertical needle selection mechanism in a state where the vertical needle is pressed, (B) Side cross-sectional view of the vertical needle selection mechanism in the raising process of the lifting bar, (C) Vertical needle selection in a state where the vertical needle is lowered Side sectional view of the mechanism Conceptual diagram showing the vertical needle structure of a conventional electronic jacquard machine

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. As shown in FIG. 1 (A), the electronic jacquard machine 10 operates by receiving power from a power source 19 (for example, a motor) common to the loom 100, and forms a shed in synchronization with the weaving operation of the loom 100. Perform the action. That is, based on the electronic data of a pattern stored in advance in a controller (not shown), a warp group composed of a plurality of warp yarns is divided into upper and lower parts, and a ‘ Is formed.

  As shown in FIG. 1B, the electronic jacquard machine 10 includes a group of vertical needles in which a plurality of vertical needles 30 are arranged in a matrix. That is, the vertical needle group has a configuration in which a plurality of vertical needle rows 30L in which a plurality of vertical needles 30 are arranged in the first horizontal direction H1 are provided in a second horizontal direction H2 orthogonal to the first horizontal direction H1. Yes. The plurality of vertical needles 30 are supported by the fixed base 11 of the electronic jacquard machine 10 so as to be movable up and down, and each vertical needle 30 supports a warp.

  As shown in FIG. 2, the electronic jacquard machine 10 includes a plurality of modules 12 having the same structure. Specifically, the fixed base 11 of the electronic jacquard machine 10 is divided into a plurality of divided bases 13 for each vertical needle row 30L, and the plurality of divided bases 13 includes one row of vertical needle rows 30L, A lift bar 15 and a vertical needle sorting mechanism 40 which will be described later are supported to form one module 12.

  As shown in FIGS. 3 and 5, the divided base 13 includes a pair of base side walls 14 and 14 that face each other in the first horizontal direction H <b> 1. The elevating bar 15 extends in the first horizontal direction H1 between the pair of base side walls 14 and 14, and is disposed to face the vertical needle row 30L. As shown in FIG. 4, the elevating bar 15 has a band plate shape, and is provided so as to be inclined so as to be lowered as it is away from the vertical needle row 30L. The elevating bar 15 is supported so as to be movable up and down with respect to the divided base 13, and moves up and down by receiving power from the power source 19.

  As shown in FIGS. 3 and 4, each vertical needle 30 in the vertical needle row 30 </ b> L is formed by bending a wire having a circular cross section into a hairpin shape, and the first straight portion 31 and the second straight portion from above the bent portion 33. 32, and the first straight portion 31 and the second straight portion 32 are opposed to each other in the second horizontal direction H2. This vertical needle structure is the same structure as the vertical needle employed in conventional initial type jacquard machines and modified jacquard machines.

  As shown in FIG. 4, a hook 34 is formed on the upper end portion of the first straight portion 31 disposed on the lift bar 15 side of the vertical needle 30. The hook 34 is formed by bending the upper end portion of the first linear portion 31 into a V shape on the lifting bar 15 side, and is located above the lifting bar 15.

  As shown in FIG. 3, a vertical needle receiving plate 16 that is generally called a “base plate” is disposed below the vertical needle row 30 </ b> L. The vertical needle receiving plate 16 is supported so as to be movable up and down with respect to the divided base 13, and a bent portion 33 which is a lower end portion of the vertical needle row 30 </ b> L is abutted against the upper surface of the vertical needle receiving plate 16. . Here, the vertical needle receiving plate 16 receives power from the same power source 19 as the lifting bar 15 and moves up and down so as to conflict with the vertical movement of the lifting bar 15. That is, when the elevating bar 15 is lowered, the vertical needle receiving plate 16 is raised, and when the elevating bar 15 is raised, the vertical needle receiving plate 16 is lowered.

  The vertical needle receiving plate 16 is formed with a plurality of insertion holes 16A that are the same as the vertical needles 30 of the vertical needle row 30L, and the warp holders are formed in the bent portions 33 of the vertical needles 30 through the insertion holes 16A. 17 are connected. As shown in FIG. 5, a ring portion 17R is provided in the middle of the warp holder 17, and a warp (not shown) is passed through the ring portion 17R. The warp holder 17 is pulled downward by warp biasing means 18 (for example, a spring or a weight) connected to the lower end, and the bent portion 33 of the vertical needle 30 is inserted by the warp biasing means 18. It is abutted against the opening edge of the hole 16A. Here, since the opening edge of the insertion hole 16A is tapered (see FIG. 9C), it is possible to prevent displacement of the bent portion 33 abutted against the opening edge. The warp holder 17 has a known structure in which neck yarn, threading, heald, and the like are connected in order from the longitudinal needle 30 side, but is simplified in FIGS. 3 and 5. A plurality of warp holders 17 may be connected to one vertical needle 30.

  The divided base 13 is provided with a first vertical needle guide portion for preventing lateral deviation by sandwiching each vertical needle 30 of the vertical needle row 30L from the first horizontal direction H1. The vertical needle first guide portion is formed by arranging a plurality of parallel bars 21 fixed to the divided base 13 and extending in the second horizontal direction H2 in the first horizontal direction H1 at regular intervals, and adjacent in the first horizontal direction H1. The vertical needle 30 is inserted into the gap between the parallel bars 21 (see FIG. 4).

  Further, the split base 13 is provided with a vertical needle second guide portion that elastically deforms each vertical needle 30 of the vertical needle row 30L from the second horizontal direction H2 and maintains the initial shape shown in FIG. 9A. It has been. The vertical needle second guide portion is constituted by a pair of horizontal bars 22 and 23 which are fixed to the divided base 13 and extend in the first horizontal direction H1. The vertical needle 30 having an initial shape is a hook formed on the upper end portion of the first linear portion 31 in a state where the first linear portion 31 is pressed against the horizontal bar 22 and the second linear portion 32 is pressed against the horizontal bar 23. 34 is disposed above the lift bar 15. Here, as shown in FIG. 9A, of the pair of horizontal bars 22, 23, the horizontal bar 22 is disposed below the lifting bar 15 and disposed above the horizontal bar 23. Yes. The above-described vertical needle first guide portion and the vertical needle second guide portion constitute the “longitudinal needle guide portion” of the present invention.

  The vertical needle selection mechanism 40 presses the first linear portions 31 of some vertical needles 30 constituting the vertical needle group to the side away from the lift bar 15 based on electronic data stored in advance in a controller (not shown). (See FIG. 10A). Then, the vertical needle row 30L includes a first vertical needle group (the vertical needle group shown in FIG. 9B) in which the first straight portion 31 is left on the lift bar 15 side, and the first straight portion 31 is the lift bar. 15 is separated into a second vertical needle group (vertical needle group shown in FIG. 10A) separated from the first vertical needle group. The hook 34 of the first vertical needle group is left at the upper position of the lifting bar 15, whereas the hook 34 of the second vertical needle group is shifted from the upper position of the lifting bar 15. And when the raising / lowering bar 15 raises, the raising / lowering bar 15 passes the side of the hook 34 of a 2nd vertical needle group (refer FIG.10 (B)), whereas the hook 34 of a 1st vertical needle group raises / lowers. Locking to the upper edge of the bar 15, only the first vertical needle group is pulled upward together with the lift bar 15 (see FIG. 9C). Further, as described above, when the elevating bar 15 is raised, the vertical needle receiving plate 16 is lowered, so that the second vertical needle group that is not pulled up by the elevating bar 15 is, as shown in FIG. The warp urging means 18 (see FIG. 5) connected to the lower end of the holder 17 is lowered together with the longitudinal needle receiving plate 16 by the urging force. As a result, the warp group supported by the first warp needle group is pulled up, and the warp group supported by the second warp needle group is pulled down, so that the shed is formed between the two warp groups separated vertically. It is formed.

  The configuration of the vertical needle selection mechanism 40 is as follows. As shown in FIG. 5, the vertical needle sorting mechanism 40 includes an elevating unit 50, a relay needle row 60L, and a relay lever row 70L in order from the top. Similar to the vertical needle row 30L described above, the relay needle row 60L has a plurality of relay needles 60 arranged in the first horizontal direction H1, and is disposed on the opposite side of the vertical needle row 30L with the lifting bar 15 interposed therebetween. The relay needle row 60L includes a plurality of relay needles 60 that are the same as the vertical needle row 30L, and the relay needle 60 and the vertical needle 30 correspond one-to-one.

  Below the elevating unit 50, a relay needle support member 41 that supports the relay needle row 60L is provided. The relay needle support member 41 is fixed to the divided base 13 and extends in the first horizontal direction H1 between the pair of base side walls 14 and 14. The relay needle support member 41 has a U-shaped cross section having a pair of upper and lower opposing walls 41A and 41B (see FIG. 3), and has a relay needle support hole 41C (see FIG. 3) formed through both the opposing walls 41A and 41B. 7), the relay needle 60 is inserted so as to be movable up and down. A resin-made pressing end member 61 is integrally provided at a lower end portion of the relay needle 60 that protrudes downward from the relay needle support member 41. The pressing end member 61 has a cylindrical shape larger than the relay needle support hole 41C and cannot pass through the relay needle support hole 41C. And the press end member 61 of each relay needle 60 has opposed the relay lever 70 which comprises the relay lever row | line | column 70L mentioned later from upper direction.

  Each relay needle 60 is biased upward by a return spring 62. The return spring 62 is a compression coil spring, and the relay needle 60 is passed through the coil of the return spring 62. The return spring 62 is disposed between the pair of opposing walls 41A and 41B, the upper end of the return spring 62 is fixed to the relay needle 60, and the lower end of the return spring 62 is the upper surface of the lower opposing wall 41B. Has been hit. The relay needle 60 is always stopped at the upper end position of the linear motion stroke (the position where the pressing end member 61 is abutted against the lower surface of the lower opposing wall 41B).

  As shown in FIG. 5, a movable base 42 that holds the elevating unit 50 is provided above the relay needle row 60L. The movable base 42 is driven by the same power source 19 as the lift bar 15 and moves up and down with respect to the divided base 13 in synchronization with the weaving operation of the loom 100. As shown in FIG. 3, the movable base 42 has a rectangular box shape that is thin in the second horizontal direction H <b> 2, and the lifting unit 50 is fitted into the insertion slot 42 </ b> A that opens at the upper end of the movable base 42. Yes. Further, as shown in FIG. 5, through holes 42B are formed on the extension lines of the relay needle 60 in the lower end wall of the movable base 42, and the upper ends of the relay needles 60 are loosely fitted in the through holes 42B. It penetrates with.

  As shown in FIG. 6, the elevating unit 50 has a structure in which a drive substrate 55 and a plurality of switching movable parts 52 are built in a rectangular thin resin case 51, and moves up and down integrally with the movable base 42. . A plurality of relay needle insertion holes 51 </ b> A are formed through the lower end wall of the resin case 51. As shown in FIG. 7, each of the plurality of relay needle insertion holes 51A is provided on an extension line of the relay needle 60, and the upper end portion of the relay needle 60 is inserted so as to be linearly movable.

  The switching movable part 52 includes a piezoelectric element 53 and a pressing switching member 54. The pressing switching member 54 is pivotally supported by a rotating shaft 54J fixed to the resin case 51, and has a lower protruding portion 54A protruding from the rotating shaft 54J to the relay needle 60 side (downward) and the opposite side (upward). ) Projecting upwardly projecting portion 54B.

  The piezoelectric element 53 extends in the vertical direction above the press switching member 54, and a lower end portion of the piezoelectric element 53 is locked to the upper projecting portion 54 </ b> B of the press switching member 54. The piezoelectric element 53 is a bending displacement element that bends and deforms when energized, and has an upper end fixed to the resin case 51. The piezoelectric element 53 of the present embodiment is a bimorph having a structure in which a pair of piezoelectric plates made of piezoelectric ceramics are bonded to the front and back of a thin metal plate, but a monomorph or a multimorph may be used.

  The piezoelectric element 53 bends toward one piezoelectric plate when a predetermined voltage is applied to the other in a state where one of the pair of piezoelectric plates is grounded. Then, the pressing switching member 54 is rotated and the downward projecting portion 54 </ b> A is disposed at the pressing avoidance position that is out of the extension line of the relay needle 60. For example, in FIG. 7, the third and seventh press switching members 54 from the right are arranged at the press avoidance position. As shown in the change from FIG. 7 to FIG. 8, when the elevating unit 50 is lowered, the relay needle 60 does not abut against the press switching member 54 arranged at the press avoidance position. It remains in the upper end position of the moving stroke.

  On the other hand, when a predetermined voltage is applied to one of the pair of piezoelectric plates while the other is grounded, the piezoelectric element 53 is bent toward the other piezoelectric plate. Then, the pressing switching member 54 rotates and the downward projecting portion 54 </ b> A is disposed at the pressing position on the extension line of the relay needle 60. For example, in FIG. 7, the switching movable portions 52 other than the third and seventh from the right are all arranged at the pressing position. As shown in the change from FIG. 7 to FIG. 8, when the elevating unit 50 is lowered, the pressing switching member 54 disposed at the pressing position hits the upper end portion of the relay needle 60 and pushes the relay needle 60. Push down.

  As shown in FIG. 6, a drive substrate 55 is disposed above the switching movable portion 52 in the resin case 51. The drive board 55 energizes the piezoelectric element 53 as described above in accordance with electronic data stored in advance in a controller (not shown), and switches the pressing switch member 54 between a pressing position and a pressing avoidance position.

  As shown in FIG. 5, a relay lever row 70L is provided below the relay needle row 60L. Similarly to the vertical needle row 30L, the relay lever row 70L includes a plurality of relay levers 70 arranged in the first horizontal direction H1, and is arranged to face the vertical needle row 30L. The relay lever row 70L includes a plurality of relay levers 70 that are the same as the vertical needle row 30L and the relay needle row 60L, and the relay lever 70 and the vertical needle 30 correspond one-to-one.

  Each relay lever 70 is disposed opposite to the first straight portion 31 of the vertical needle 30. As shown in FIG. 9A, the relay lever 70 rotates in the origin posture that is not pressed by the relay needle 60, and the rotation vertical side 71 that extends in parallel with the first straight portion 31 of the vertical needle 30. It has a substantially L-shape having a rotating horizontal side 72 extending from the upper end portion of the vertical side 71 to the opposite side to the first linear portion 31. Each relay lever 70 is rotatable about a rotation shaft 70J extending in the first horizontal direction H1. The rotation shaft 70J is disposed at an intermediate portion of the rotation lateral side 72, and the relay lever 70 is urged toward the origin posture shown in FIG. 9A by its own weight. The end of the rotation lateral side 72 is disposed on the lower extension line of the relay needle 60 and is pressed by the relay needle 60 pushed downward. When the rotating horizontal side 72 is pushed by the relay needle 60, the relay lever 70 changes from the original posture to the pressing posture (see FIG. 10A), and the rotating vertical side 71 is the first straight portion 31 of the vertical needle 30. Is pushed to the side away from the lift bar 15. In addition, a protrusion 73 made of a curved convex surface is provided on the upper surface of the end of the rotation lateral side 72. Further, in the present embodiment, the relay needle 60 positioned at the upper end position of the linear motion stroke and the relay lever 70 positioned in the origin posture are configured to contact each other.

  The plurality of relay levers 70 constituting the relay lever row 70L are supported by a common lever support base 44. As shown in FIG. 5, the lever support base 44 extends in the first horizontal direction H <b> 1 below the relay needle support member 41 and is fixed to the divided base 13. Further, as shown in FIG. 9A, the lever support base 44 is disposed at a position offset from the extension line of the relay needle 60 toward the longitudinal needle row 30L, and is opposed to the longitudinal needle row 30L.

  In the lever support base 44, the surface facing the vertical needle row 30 </ b> L is a vertical surface that comes into contact with the rotating vertical side 71 of the relay lever 70 in the home position. Further, the upper surface of the lever support 44 is an inclined surface that is lowered as the distance from the vertical needle row increases. Further, as shown in FIG. 4, a plurality of concave grooves 44M identical to the relay lever 70 are formed on the upper surface of the lever support base 44, and the rotation lateral side 72 of the relay lever 70 is formed in each concave groove 44M. Is passed. Then, the rotation shaft 70J is passed between the projecting walls 45 and 45 facing each other with the concave groove 44M (the rotation lateral side 72) interposed therebetween, and the relay lever 70 is supported.

  The configuration of the electronic jacquard machine 10 of the present embodiment is as described above, and the operation will be described next. In the initial state of the electronic jacquard machine 10, as shown in FIG. 9A, the elevating unit 50 and the vertical needle receiving plate 16 are disposed at the upper end position of the linear motion stroke, and the elevating bar 15 is positioned at the lower end position of the linear motion stroke. Is arranged. Further, all the vertical needles 30 have an initial shape, and the warp group is in a state where the shed is closed.

  When the electronic jacquard machine 10 is activated, energization is performed on each piezoelectric element 53 of the plurality of switching movable parts 52 based on electronic data received from the controller, and each pressing switching member 54 is pressed or moved according to the energized state. It is arranged at the pressure avoidance position.

  When the position of the pressing switch member 54 is determined, the elevating unit 50 starts to descend. At this time, the pressing switching member 54 arranged at the pressing position hits the upper end portion of the relay needle 60 and pushes it downward, and the relay needle 60 pushes down the rotation lateral side 72 of the relay lever 70 so that the relay lever 70 The origin posture changes to a pressing posture (see FIG. 10A). When the pressing posture is changed, the first linear portion 31 of the vertical needle 30 having the initial shape is pressed by the rotating vertical side 71 and separated from the lifting bar 15.

  On the other hand, the pressure switching member 54 disposed at the pressure avoidance position passes without contacting the relay needle 60 when the elevating unit 50 is lowered, and the relay needle 60 remains at the upper end position (FIG. 9B). )reference). Since the relay lever 70 corresponding to the relay needle 60 maintains the origin posture, the vertical needle 30 maintains the initial shape. That is, the first straight portion 31 of the vertical needle 30 is left on the lift bar 15 side.

  Thereby, the vertical needle row 30L includes a first vertical needle group in which the first straight portion 31 is left on the lift bar 15 side and a second vertical needle group in which the first straight portion 31 is separated from the lift bar 15. Divided.

  When the vertical needle row 30L is divided into two vertical needle groups, the lift bar 15 starts to rise. In the ascending process, the lifting bar 15 passes through the side of the hook 34 of the second vertical needle group (see FIG. 10B), whereas the hook 34 of the first vertical needle group is the upper edge of the lifting bar 15. The first vertical needle group is pulled upward together with the lift bar 15 by being locked to the portion (see FIG. 9C). Further, when the elevating bar 15 is raised, the vertical needle receiving plate 16 is lowered, and the second vertical needle group that has not been pulled up by the elevating bar 15 is lowered together with the vertical needle receiving plate 16 (see FIG. 10C). As a result, the warp group supported by the first longitudinal needle group is pulled up, and the warp group supported by the second longitudinal needle group is pulled down to form a hook. Then, the weft is passed through the shed.

  Here, as shown in FIG. 10 (A) and FIG. 10 (B), the elevating unit 50 has the lower end position or the vicinity thereof until at least the elevating bar 15 passes the side of the hook 34 of the second vertical needle group. The relay lever 70 is maintained in the pressing posture by being disposed at the position. The elevating unit 50 is returned to the upper end position of the linear stroke until the elevating bar 15 passes the side of the hook 34 of the second vertical needle group, reaches the upper end position, and further returns to the lower end position. . When the elevating unit 50 returns to the upper end position, all the relay needles 60 are disposed at the upper end position by the return spring 62, and all the relay levers 70 are disposed at the origin posture by their own weight.

  The elevating bar 15 that has reached the upper end position turns downward, and the first vertical needle group locked to the elevating bar 15 is lowered. Further, almost at the same time when the elevating bar 15 reaches the upper end position, the vertical needle receiving plate 16 reaches the lower end position and turns upward to push up the second vertical needle group from below. And if the raising / lowering bar 15 is arrange | positioned in a lower end position and the vertical needle receiving plate 16 is arrange | positioned in an upper end position, the hook of a warp group will be closed.

  The above is the operation of one cycle of the electronic jacquard machine 10, and the pattern is woven into the woven fabric by repeating this operation in synchronization with the weaving operation of the loom 100.

  As shown in FIG. 10C, before the elevating bar 15 reaches the lower end position, the elevating unit 50 reaches the upper end position, and each vertical needle 30 of the first vertical needle group returns to the initial shape. In this case, the first straight portion 31 of the vertical needle 30 of the second vertical needle group and the lift bar 15 are in contact with each other during the lowering of the lift bar 15 (the vertical needle receiving plate 16 is lifted). That is, the hook 34 formed at the upper end of the first straight portion 31 is in sliding contact with the downward slope of the lift bar 15, so that the first straight portion 31 is pressed away from the lift bar 15, and the hook 34 is lifted and lowered. When the upper edge of the bar 15 is climbed over, the first straight portion 31 returns to the lifting bar 15 side and becomes the initial shape again.

  Thus, according to this embodiment, since it has the structure provided with the vertical needle selection mechanism 40 for every vertical needle row 30L, a structure can be simplified compared with the conventional modified jacquard machine. . Each vertical needle selection mechanism 40 includes a relay needle row 60L including a plurality of relay needles 60 that can move up and down, a relay lever row 70L including a plurality of rotatable relay levers 70, and a fixed base 11 that moves up and down. And an elevating unit 50 that is movably supported. Further, the lifting unit 50 includes a plurality of pressing switching members 54 that can be switched between a pressing position and a pressing avoiding position, and a plurality of piezoelectric elements 53 that are driven based on electronic data to switch the position of each pressing switching member 54. Is provided. The elevating unit 50 receives power from the same power source 19 as the elevating bar 15 and moves to the relay needle 60 side, and the press switching member 54 arranged at the pressing position presses the relay needle 60 to rotate the relay lever 70. The relay lever 70 thus rotated presses the vertical needle 30 toward the side separating the lift bar 15. As a result, the vertical needle group is divided into first and second vertical needle groups.

  That is, the electronic jacquard machine 10 according to the present embodiment has a structure in which the vertical needle row 30L is provided with the vertical needle sorting mechanism 40, but has already been demonstrated with a conventional modified jacquard machine. Since it has a structure equipped with a "mechanism", it becomes possible to adopt a vertical needle structure that has been proven in the modified jacquard machine and the initial jacquard machine. As a result, it is possible to increase the reliability and suppress the manufacturing cost as compared with the conventional electronic jacquard machine. Moreover, if the vertical needles of the initial type jacquard machine and the modified type jacquard machine that are no longer used are used, the manufacturing cost can be further reduced.

  Here, some early jacquard machines and modified jacquard machines incorporate a so-called “stick sword”, and some vertical needles in the group of vertical needles are made of a plate material called “stick sword”. Some are used as “stick knives” for hanging, but the vertical needles of conventional electronic jacquard machines are not strong enough as stick knives, making it impossible to incorporate stick knives. there were. On the other hand, in the electronic jacquard machine 10 of the present embodiment, it is possible to adopt a vertical needle structure that has been used as a stick sword needle in an initial type or a modified jacquard machine. It becomes possible to incorporate a stick sword into 10.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

  (1) In the above embodiment, the relay lever 70 has a substantially L shape, and the rotation shaft 70J is disposed in the middle portion of the rotation horizontal side 72. However, the rotation horizontal side 72 and the rotation vertical side 71 are arranged. The rotation shaft 70J may be disposed at the intersection of the two. Further, the relay lever 70 is not limited to a substantially L shape.

  (2) The vertical needle selection mechanism 40 of the above embodiment has a configuration in which the elevating unit 50, the relay needle row 60L, and the relay lever row 70L are arranged in this order from the top, but this arrangement may be reversed upside down. . That is, when the relay needle 60 pushed up from below by the lifting unit 50 presses the relay lever 70 in the home position, the relay lever 70 moves the first straight portion 31 of the vertical needle 30 away from the lifting bar 15. It is good also as a structure to press.

  (3) The electronic jacquard machine 10 of the above embodiment is a “both mouth opening type” in which the warp group is pulled both upward and downward to form a shed, but the warp group is pulled only upward. It is good also as a "single-mouth opening type" by which a shed is formed.

  (4) The vertical needle structure of the present embodiment is formed by bending a wire having a circular cross section into a hairpin shape, extending the first straight portion 31 and the second straight portion 32 upward from the bent portion 33, and Although the hook 34 is formed by bending the upper end portion of one straight line portion 31, the present invention is not limited to this vertical needle structure, and vertical needles of other vertical needle structures may be used. For example, a vertical needle having a structure in which the bent portion 33 of the vertical needle 30 of the present embodiment is further bent into a “J” shape may be used.

  (5) In the electronic jacquard machine 10 of the present embodiment, the vertical needle group that is not pressed by the relay lever 70 becomes the first vertical needle group that can be engaged with the elevating bar 15, and the vertical needle that is pressed by the relay lever 70. The group was the second vertical needle group that could not be locked with the lift bar 15, but the vertical needle group that was not pressed by the relay lever 70 became the second vertical needle group that could not be locked with the lift bar 15, The vertical needle group pressed by the relay lever 70 may be a first vertical needle group that can be engaged with the lift bar 15. Specifically, for example, the lifting bar 15 is disposed on the opposite side of the relay lever row 70 across the first straight portion 31 of the vertical needle row 30L, and the upper end portion of the first straight portion 31 is connected to the lifting bar 15 side ( What is necessary is just to make it the structure which bent to the 2nd linear part 32 side), and was used as the hook 34. FIG.

DESCRIPTION OF SYMBOLS 10 Electronic jacquard machine 11 Fixed base 13 Split base 15 Lifting bar 17 Warp holder 17R Ring part 19 Power source 21 Parallel bar 22,23 Horizontal bar 30 Vertical needle 30L Vertical needle row 31 1st linear part 32 2nd linear part 33 Bending Part 34 Hook 40 Vertical needle selection mechanism 50 Lifting unit 53 Piezoelectric element 54 Press switching member 60 Relay needle 60L Relay needle row 62 Return spring (relay coil biasing compression coil spring)
70 Relay lever 70J Rotating shaft 70L Relay lever row 71 Rotating vertical side 72 Rotating horizontal side H1 First horizontal direction H2 Second horizontal direction

Claims (4)

A plurality of vertical needle rows in which a plurality of vertical needles supported by a fixed base in a vertically movable manner are arranged in a first horizontal direction are arranged in a plurality of rows in a second horizontal direction orthogonal to the first horizontal direction, and the first horizontal A lifting bar extending in the direction is arranged opposite to each vertical needle row, and a hook protruding from each vertical needle is positioned above the lifting bar,
Each vertical needle is operated by operating a vertical needle selection mechanism provided for each vertical needle row based on electronic data stored in advance to press a part of the vertical needles in the second horizontal direction. The vertical needle group of the row is divided into a first vertical needle group and a second vertical needle group,
The lift bar is supported by the lower end portion of the vertical needle group by engaging with the hooks of the first vertical needle group and pulling up the first vertical needle group in the process of rising by receiving power from a power source. In an electronic jacquard machine that divides the warp group into upper and lower parts and allows the weft to be woven between the upper and lower warp groups,
In each of the vertical needle selection mechanisms,
A relay needle row comprising a plurality of relay needles arranged on the opposite side of the vertical needle row across the lifting bar and supported by the fixed base so as to be movable up and down;
The relay needle is arranged above or below the relay needle row, is supported by the fixed base, rotates around a rotation shaft extending in the first horizontal direction, and one end portion away from the rotation shaft is connected to the relay needle. A relay lever row consisting of a plurality of relay levers, the other end of which is pressed against the pivot shaft and presses the vertical needle;
An elevating unit that is arranged on the opposite side of the relay lever row with the relay needle row interposed therebetween, is supported by the fixed base, and moves up and down by receiving power from the same power source as the elevating bar,
A plurality of lift units corresponding to each relay needle of the relay needle row, a pressing position facing the corresponding relay needle in the vertical direction, and a pressing avoidance position shifted laterally from the pressing position A plurality of pressure switching members capable of reciprocating between,
A plurality of piezoelectric elements provided in the lifting unit corresponding to the plurality of pressing switching members and driven based on the electronic data to switch each pressing switching member to the pressing position or the pressing avoiding position; Is provided,
An electronic device characterized in that, when the elevating unit moves to the relay needle row side, the press switching member disposed at the pressing position presses the relay needle to rotate the relay lever. Jacquard machine. Each of the vertical needles has a structure in which a wire having a circular cross section is bent into a hairpin shape, and the first and second linear portions are extended upward from the bent portion to face each other in the second horizontal direction,
The fixed base is elastically deformed by sandwiching the first and second straight portions of the vertical needles in the second horizontal direction, and the first and second in the first horizontal direction. A vertical needle guide part is provided to prevent lateral deviation across the straight part of
The hook is formed by bending an upper end portion of the first linear portion arranged on the lifting bar side among the first and second linear portions,
The electronic jacquard machine according to claim 1, further comprising a warp holder connected to the bent portion of each longitudinal needle and extending downward and having a ring portion for passing the warp in the middle. . A plurality of relay needle energizing elements that are arranged in the order of the elevating unit, the relay needle array, and the relay lever array from above and that are inserted through the relay needles and bias the relay needles upward. A compression coil spring is provided,
The relay lever has a pivotal vertical side extending in parallel with the first linear portion of the vertical needle in an origin posture not pressed by the relay needle, and an upper end portion of the pivotal vertical side. It has a substantially L-shape having a rotation lateral side extending to the opposite side to the straight line portion, and the intermediate portion of the rotation lateral side or the intersection of the rotation lateral side and the rotation vertical side. A rotating shaft is arranged and urged toward the origin posture side by its own weight, an end of the rotating horizontal side is pressed from above by the relay needle, and the rotating vertical side is the first of the vertical needle. 3. The electronic jacquard machine according to claim 2, wherein the straight portion is pressed to the side that is separated from the lifting bar.   The electronic jacquard machine according to any one of claims 1 to 3, wherein the fixed base is divided into a plurality of divided bases for each vertical needle row.

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