JPH01207438A - Method for jacquard weaving with regulable warp yarn density and apparatus therefor - Google Patents

Abstract

PURPOSE:To carry out change of warp yarn density and increase or decrease in weaving width without exchanging comber boards, by stretching warp yarns on dents, capable of adjusting an interval and having a stretchable member and arranging plural comber boards between the dents and a harness guide. CONSTITUTION:Stretchable members secured to both ends of dents 6 are constituted to enable expansion and contraction, change of the dent interval and regulation of warp yarn density. The first comber board 3 and second comber board 4 are arranged between the warp yarns stretched through the above- mentioned dents 6 and a harness guide 2 just under a Jacquard machine 1. The above-mentioned first comber board 3 is constituted so as to enable rotation of comber board pieces on an intermediate shaft as the center. The pieces are tilted at a prescribed crossing angle by rotation thereof to increase or decrease the interval of the harnesses inserted through through-holes of the comber board. Thereby, opening motion of the warp yarns is simultaneously carried out while restricting the interval so as to coincide with the respective warp yarns with the second comber board.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a method for changing the width of a woven fabric by adjusting the warp yarn density to change the pattern formed on the woven fabric depending on the width of the woven fabric. The present invention also relates to a jacquard weaving method and apparatus for making the jacquard weaving adjustable and readable.

(Prior art) When weaving a fabric using a loom, weft threads are passed between both warp groups to sequentially compose the fabric, but when adding a pattern to the fabric, the structures of the warp and weft yarns are changed to a certain degree. It is woven by A jacquard machine is used for this weaving, and the vertical movement of the warp threads is regulated by the movement of the threads passed through a harness guide from the jacquard machine and restrained in a predetermined position by battens. , a predetermined pattern is formed. Regarding this point, it is the basic structure of the loom and there is no need to explain it again, but at the end of the thread that is suspended from the Jacquard machine through the batten, there is a mesh glass through which the warp thread is threaded. The threading thread and the warp thread are combined in a ratio of 1:1. When weaving a fabric having a predetermined pattern, the warp threads are passed between the reeds and also inserted through the thread eye glass to set the threads. However, even with threads set in this way, if you change the density of the warp threads or increase or decrease the width of the fabric, it is necessary to rethread the threads through another batten even if the pattern is the same. . There is no problem if there are only a few threads to be threaded, but if there are several thousand or more than 10,000 threads, it becomes a difficult job.
It is also a task that requires skill. Of course, it is necessary not only to reset the threads but also to adjust the warp threads, but changing the density of the warp threads and adjusting the weaving width can be done in Japanese Patent Application No. 62-3362.
As described in No. 95, this problem can be dealt with by arbitrarily adjusting the reed feather density. In other words, the distance between the reed blades can be finely adjusted while the reed frame remains set, without having to replace the reed frame as in the past.
Each reed feather is fixed to an elastic member. In this way, even if the warp thread density and weaving width of the fabric can be changed by adjusting the reed blades of the reed frame, the thread threading will also be adjusted to follow the warp threads and maintain a constant length. If this is not possible, the meaning of the above-mentioned reed feather adjustment will be completely lost.

In other words, if you forcefully move the thread to the warp thread position without changing the position of the hole in the batten that guides one thread,
The height of the eye glass at the end of the thread changes, resulting in a problem in weaving.

(Objective of the present invention) When forming a pattern on a woven fabric in this way, the spacing between threads that are moved up and down by a jacquard machine is adjusted as the warp thread density and weaving width of the woven fabric are changed. The present invention is a technology developed to solve these problems, and involves adjusting the warp yarn spacing (i.e. density). To provide a jacquard weaving method and an apparatus therefor, in which thread threading can be freely adjusted and the replacement of new battens is not required.

(Structure of the present invention) Therefore, in order to solve the above-mentioned problems, the jacquard weaving method and its apparatus according to the present invention are configured with the following features. First of all, the reed frame has a structure that allows fine adjustment of the density of use. Of course, the structure is not limited to this, but basically both ends of each component are fixed to an elastic member such as a spring or a rubber band, and the structure is such that the elastic member is expanded and contracted. A batten is placed between the warp thread stretched through the reed blades of the reed frame and the harness guide installed directly below the jacquard machine. It is separated into a batten and a second batten. The first batten has many small holes like conventional battens, but it is not completely fixed to the loom body frame, and has a shaft in the middle, through which it can be inserted. It is attached to the shaft and is rotatable about the shaft. In this case, the first batten is divided into two parts around the axis, and the left and right batten pieces are tilted at a predetermined intersection angle by the rotation. By inclining the batten pieces in this way, the distance between threads inserted through the holes in the batten can be increased or decreased. Of course, after the intersection angle is adjusted to a predetermined angle around the axis, the ends of the first plate pieces are fixed so that the intersection angle does not fluctuate. Further, the second stitch plate is used to re-insert the threads that have been passed through the holes in the first plate, and the second stitch plate is adjusted so that each thread is positioned at the same position as the warp thread. The spacing between the holes through which the thread is inserted must be adjustable. Here, there are various methods for adjusting the interval between the through holes, but basically a telescopic member is used, and both ends of a straight material such as a wire are fitted into the member, or the through holes are It is also possible to adjust the width to match the entire width of the fabric by dividing the batten formed into a large number of batten pieces and interposing spacers between each batten piece.

By the way, the relationship between the first stitch board and the second stitch board is that the yarn coming out of the harness guide is first expanded to the approximate width of the fabric by the first stitch board, and then moved to a position that matches each warp thread by the second stitch board. restrained so as to be suspended. Therefore, the first stitch board may be fixed so as to have the maximum and minimum average values of the weaving width.

Embodiments of the present invention will be described in detail below with reference to the drawings.

(Example) Fig. 1 shows a specific example of a jacquard weaving apparatus according to the present invention, in which 1 is a jacquard machine, 2 is a harness guide, and 3 is a jacquard weaving device.
4 represents the first eye board, 4 represents the second eye board, and 5 represents the reed frame. This figure is a front view of the loom, and the warp threads are passed between the sections 6, 6, . . . of the reed frame 5 in a direction perpendicular to the plane of the paper.

FIG. 2 shows an example of the reed frame 5, and each purpose 6.6...
is fixed at both ends to a telescopic member 7.7, and the distance (pitch) can be adjusted by the expansion and contraction of the member 7, and the telescopic member 7 is fixed only in the longitudinal direction. A degree of freedom is provided, and in this state, the distance can be finely adjusted by the degree of engagement between the inclined portions 8 formed at both ends of the reed feathers 6 and the elastic member 7. That is, by moving the adjusting member 9 in the longitudinal direction to move the member 6 up or down, the abutment member 10 engaged with the adjusting member 9 is moved up or down. Of course, FIG. 2 as a means for adjusting the distance between the two is only one example.

FIG. 3 shows the first batten board 3, and the first batten board 3 is constructed by connecting left and right batten board pieces 3a, 3b to each other around a shaft 11, and each of the batten board pieces 3a, 3b. The intersecting angle θ between them can be freely adjusted. Of course, only the 11th part of the shaft
Since attaching the battens 3 lacks stability, once a predetermined intersection angle θ is determined, both ends are fixed via fasteners. Also, a large number of through holes 12, 12, .

A thread is inserted through the through hole 12. Therefore, the threads suspended in a bundle from the harness guide 2 expand radially, pass through the respective through holes 12, 12, etc. of the first stitch plate 3, and are guided to the second stitch plate 4.

FIG. 4 shows a specific example of the second eye board 4, in which horizontal wire rods 14, 14... and vertical wire rods 15.
15... are arranged, the horizontal wire rods 14 are fixed to the outer frame 13, and the distance between each horizontal wire rod 14, 14... is unchanged. Horizontal wire 14.1 fixed in this way
Since the vertical wire rods 15.15 are arranged orthogonally to the horizontal wire rods 14 and 15, the rectangular through holes 16.4 are formed by the horizontal wire rods 14 and the vertical wire rods 15.
1B... will be formed, and the vertical wire rod 15.
15... are attached so that the distance between them can be adjusted. Therefore, the vertical wire rod 15 also has the reed blades 6.6 of the reed frame 15.
Similarly, they are arranged with both ends fixed to an elastic member, and the distance between the vertical wire members 15, 15, etc. is finely adjusted by appropriately expanding and contracting the elastic member.

An example of the telescopic member is shown in FIG. 5, in which a link mechanism is adopted as the telescopic member 17, and links 18a and 18b criss-crossed around the shaft 19 have pins 20° and 20° at both ends, respectively. They are connected to each other through...

Therefore, if the guide member 21 connected to the tip of the telescopic member 17 is moved along the outer frame 13, each link 1
Since the intersection angle α between 8a and 18b increases or decreases, and each part of the expandable member 17 can expand and contract equally, vertical wire rods 15, 15, etc. are fixed to the links 18a and 18b at regular intervals. If this is done, the distance between the vertical wires 15, 15, etc. will increase or decrease as a result of the expansion and contraction described above. However, since the vertical wire 15 itself has no elasticity, the links 18 to which both ends are fastened must be a pair of links that are parallel to each other, and the fastening portions must be in a state where they can rotate relative to the links 18. It is necessary that By the way, the elastic action of the elastic member 17 must be such that it contracts from both sides with respect to the center line of the weaving width, and conversely expands to both sides, and should not expand or contract only on one side. The fixed ends 22 of the links 18 are provided at the centerline portions of the links 17, and are arranged symmetrically with respect to the centerline.

On the other hand, FIGS. 6 and 7 show other embodiments of the second batten 4, in which batten pieces 23, 23... are arranged in the outer frame 13, and each batten board piece 23, 23... A spacer 24 is interposed between the two. Of course, the batten piece 23 is provided with through holes 16, 16, . In this case, fine adjustment of the distance between the individual through holes 16, 16, . . . is not possible, but general adjustment is possible by replacing the spacer 24. The batten 4 shown in FIG. 6 is applied to fabrics having a relatively narrow width, and the batten 4 shown in FIG. 7 is intended for fabrics with an enlarged width.

As a means for adjusting the distance between the through holes 16 of the second eye plate 4, in addition to adjusting the vertical wire 15 shown in FIG. 4 or changing the spacer 24 shown in FIGS. 6 and 7, hole 16
．． The first stitch plate 3 can also be used as a means for adjusting the distance between threads passing through the through holes 16 without changing the distance between the threads. FIG. 8 is an example of this, in which both ends are inclined downward, contrary to FIG. 3.

As described above, the present invention is not limited to the embodiments described above, but is directed to a loom equipped with a reed frame in which the pitch of the reed blades can be adjusted, and in which the warp yarn density and weaving width can be freely changed. A first stitch board and a second stitch board are attached to the loom so that the thread suspended from the jacquard machine through the harness guide can be adjusted according to the weaving width mentioned above, and the following effects are obtained. be able to.

(Effects) (1) By using the jacquard weaving method and its device in this way, even when changing the density of the warp threads and increasing or decreasing the weaving width, the first stitch board and the second stitch board By adjusting the thread appropriately, it is possible to always place the thread at the same position as the warp thread, or at a position close to it. There is no need to go through the process, and the preparation work is virtually eliminated, resulting in significant labor savings.

(2) In addition, the work of replacing the batten not only requires a large amount of labor, but also requires a long time and skill, making it difficult to respond quickly. Even an amateur can weave quickly.

(3) Furthermore, the threading is not only moved to the position of the warp thread by the first stitch plate and the second stitch plate, but also the height of the stitch glass remains almost unchanged as a result of this adjustment.

High quality fabrics can always be obtained without causing any problems during weaving.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic diagram of the device according to the present invention, Fig. 2 shows an example of the mechanism for adjusting the reed spacing, Fig. 3 shows a specific example of the first batten, and Fig. 4 shows the mechanism for adjusting the reed spacing. Fig. 5 shows a specific example of the adjusting mechanism for the vertical wire of the second batten, Figs. 6 and 7 show other embodiments of the second batten, and Fig. 8 further shows a specific example of the adjusting mechanism for the vertical wire of the second batten. Examples of different second battens are shown respectively. 1...Jacquard machine 2...Harness guide 3...First stitch board 4...Second stitch board 5
... Reed frame 6 ... Use 7.17.
...Extensible member 8...Slanted part 9...Adjustment member lO...Abutting member 11.19...Axis 12.1B...Through hole 13...Outer frame
14...Horizontal wire rod 15...Vertical wire rod
1B...Link 20...Pin
21...Guiding member 22...Fixed end
23...Fill board piece 24...Spacer patent application Hitoyoshi 1)
Katsuyoshi 1) Masato Mayo Hiko Hirasaki
Figure 1 Figure 2 Figure 3123

Claims (1)

[Scope of Claims] (1) The distance between the reed blades is adjusted by fixing both ends of the reed blades arranged on the reed frame to a telescopic member and expanding and contracting the reed blade, The warp yarn density can be freely adjusted by adjusting the warp yarn density, while a first stitch plate and a second stitch plate are arranged between the warp yarn and a harness guide attached below the jacquard machine,
The first eye plate is composed of two eye plate pieces with an axis in the center and a symmetrical inclined positional relationship, and the thread is inserted into the through hole provided in the second eye plate piece, and the second eye plate is inserted. The through hole interval of the second eye plate is adjusted so that the thread can be inserted and placed at the same position as or in the vicinity of the warp thread, and the opening movement of the warp thread is regulated by the thread thread. A jacquard weaving method with adjustable warp thread density, characterized by weaving a predetermined pattern. (2) By fixing a plurality of horizontal wire rods at a constant pitch to the outer frame as the second eye plate, arranging vertical wire rods perpendicular to the horizontal wire rods, and fixing both ends of the vertical wire rods to the elastic member. A jacquard weaving method with adjustable warp thread density as set forth in claim 1. (3) A plurality of batten pieces are arranged as the second batten on the outer frame with a spacer interposed between them, and the spacer can be freely replaced according to the warp thread density. The described jacquard weaving method with adjustable warp thread density. (4) As the second batten, batten pieces are formed at symmetrical positions with the same inclination with respect to an axis provided on the center line,
Warp yarn density according to claim 1, wherein each batten plate piece is provided with a large number of through holes, and the distance between threads passing through the through holes is adjusted by adjusting the inclination angle. Adjustable jacquard weaving method. (5) Both ends of the reed feathers arranged on the reed frame are fixed to an expandable member, so that the distance between the reed feathers can be adjusted by the expansion and contraction action of the expandable member, and the warp yarn group stretched through the reed frame. A first eye board and a second eye board are arranged between the harness guides attached to the bottom of the jacquard machine, and the first eye board has an axis in the center and tilts symmetrically around the axis. 1. A jacquard weaving device with adjustable warp yarn density, characterized in that the second plate is configured to be configured such that the interval between holes formed therein can be adjusted. (8) A patent claim in which a plurality of horizontal wire rods are fixed at a constant pitch to the outer frame as the second eye plate, vertical wire rods are arranged orthogonally to the horizontal wire rods, and both ends of the vertical wire rods are fixed to an elastic member. range 5th
A jacquard weaving device with adjustable warp thread density as described in 2. (7) Claim 5, wherein a plurality of batten pieces are arranged as the second batten on the outer frame with a spacer interposed therebetween, and the spacer can be freely replaced according to the warp thread density. The described jacquard weaving device with adjustable warp thread density. (8) As the second batten, form the battens at symmetrical positions with the same inclination about the axis provided on the center line, and drill a large number of through holes in each batten piece to adjust the above-mentioned angle of inclination. 6. A jacquard weaving device with adjustable warp thread density as set forth in claim 5, wherein the distance between the threads passed through the through holes is adjusted by adjusting the distance between the threads passed through the through holes.