JPH031420B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a device for distributing vertical yarns in a handloom.

(Prior art) As shown in Figure 7a, woven fabrics are generally obtained by threading the weft threads 3 through a plurality of warp threads 2 arranged vertically while changing the top and bottom. As shown in b, the warp threads 2 are distributed vertically in an alternating and restrictive manner, a shuttle S is created between the upper thread 2a and the lower thread 2b, and the weft thread 3 wound around the shuttle 40 is passed through. A mechanism is used to drive the ball closer to the front. Incidentally, it is relatively easy to alternately distribute the warp threads one by one as in the case of plain weaving, but in the case of patterned weaving, the distribution of the warp threads above and below becomes complicated. Conventionally, this has been done by using a special mount, but it is cumbersome to operate and it is not possible to perform a very complicated vertical distribution.

As a solution to this problem, it has been considered to use a punch sheet shown in Japanese Patent Application Laid-Open No. 60-2743, but in this technique, the punch sheet is wound around a roller, so the punch sheet Since the length of the roller is limited to the length of one rotation of the roller, there is a drawback that freedom of design is lost.

(Objective of the Invention) The present invention solves the above-mentioned drawbacks, and proposes a vertical warp distribution device for handlooms that can automatically and accurately perform the complicated vertical distribution of warp yarns and has a high degree of freedom in design. is its purpose.

(Means for Achieving the Object) In order to achieve the above object, the vertical distribution device for warp threads in a handloom according to the present invention is characterized by having the following requirements.

(a) The main body of the handloom shall be provided with a support that can be moved up and down to support the thread hook for hanging the warp threads.

(b) The thread hanging device should engage approximately in the middle of each warp yarn stretched on the main body of the handloom, and pass through the support body.

(c) At a position facing below the thread hook of the support, the holes for the thread hook are arranged in a direction perpendicular to the warp, and the feed holes are arranged in a constant direction along the warp. Punch sheets arranged at intervals are movably provided along the warp.

(d) The handloom main body is provided with a feed wheel that rotates in conjunction with the vertical movement of the support, and protrusions are formed at intervals on the outer peripheral surface of the feed wheel.

(E) The protrusion of the feed wheel engages with the feed hole of the punch sheet, and the feed wheel rotates so as to move the punch sheet by one row of slot holes when the support moves up and down once. .

(Operations and Effects of the Invention) According to the above configuration, since the punch sheet is provided at the lower part of the support for the thread hook, the thread hook supported so as to be movable up and down can be moved downwardly on the support. When threading, the thread hanger rests on the punched sheet, but the thread hook facing the holes arranged in the sheet according to the pattern to be woven falls into the holes, and the warp threads descend, creating a fabric with no holes. The thread hook facing the part remains in the upper position. As a result, the vertical distribution of the warp yarns is automatically performed.

By the way, when the feed wheel rotates in conjunction with the vertical movement of the support, the punch sheet having the feed holes that engage with the protrusions of the feed wheel moves by one row of drop holes. Therefore, when the support is moved upward after the weft threading of the first stage is completed, the punch sheet is advanced and the vertical distribution of the next warp thread is automatically performed, and the weft threading of the next stage of weft thread is carried out. By repeating this process, a desired fabric can be easily obtained.

In addition, since the punch sheet is movable along the warp threads and is moved by engagement with the feed wheel, accurate positioning is possible, and as shown in Japanese Patent Laid-Open No. 60-2743, Because punch sheets can be used for a relatively long time compared to those that are wrapped around rollers, the degree of freedom in design is greatly improved.

(Example) Examples of the present invention will be described below with reference to the drawings.

In the figure, symbol A indicates a handloom. In this handloom A, a plurality of warp threads 2 are stretched in advance on a main body 1, and a warp thread distribution device provided approximately in the middle distributes the warp threads 2 vertically, and the distributed upper and lower threads 2a, Weft thread 3 is attached to the shed S formed between 2b
Weaving a piece of cloth by passing the weft thread 3 between the top and bottom threads 2a and 2b of the warp thread 2 by repeatedly passing it through the shuttle wrapped around it, changing the distribution of the warp thread 2 again, and passing it through the gutter from the opposite side. It is.

The warp threads 2 are stretched parallel to winding rods 1a and 1b at the front and rear of the main body 1.

The distribution device for vertically distributing the warp threads 2 includes a swingable support 5 which passes through a plurality of thread hooks 4 that engage the warp threads 2 and holds the warp threads 2 in a vertically movable manner at approximately the middle of the main body 1. A guide passage 7 is provided at the lower part of the support body 5 to guide the punch sheet 6 so as to be movable back and forth along the two warp directions, and the part of the guide passage 7 facing the thread hook 4 is open. The punch sheet 6 is further provided with a feeding mechanism that advances the punch sheet 6 by one horizontal row of punch holes, which will be described later.

First, the support body 5 is formed to be able to swing freely by forming a plurality of guide grooves 10 on the upper surface of the distal end thereof and having pivot shafts 11 attached to both sides of the main body 1 on the outer side of the proximal end. There is.

The thread hook 4 has a thread hook 13 formed in the upper part of a body part 4a whose cross section corresponds to the guide groove 10, a bar-like leg part 14 in the lower part, and a retainer 15 in the body part 4a. It is formed to protrude laterally and is fitted into the guide groove 10 of the support body 5 so as to be vertically movable. At this time, the thread hook 4 is configured to be prevented from slipping out from the support body 5 by a stopper 15.

16 indicates a marker. The marker 16 includes a body portion 16a and a rod-shaped leg portion 17 having the same configuration as the thread hook 4.
In addition, a thread locking piece 18 is formed on the upper part of the body portion 16a. The marker 16 is normally fitted into the guide grooves 10 on both outer sides of the support body 5 so as to be vertically movable.

The guide passage 7 is formed by attaching an upper plate member 7a and a lower plate member 7b to the main body 1 one above the other, and is open at the front and rear ends. The guide passage 7 also has an opening 1 in a portion facing the thread hook 4 attached to the support 5.
9 is formed. The punch sheet 6 is provided at a position facing below the thread hook 4 of the support.
On both sides of the punch sheet 6, feed holes 21 are arranged at regular intervals in the direction along the warp threads 2, and on both sides of the punched sheet 6, marker holes 22 are formed alternately every other feed hole 21. On the inside thereof, drop holes 23 for thread hooks are arranged in a direction perpendicular to the warp threads 2. The spacing between the horizontal rows of the thread hook drop holes 23 is set according to the upper and lower thread distribution of the warp threads 2, and the portion where the drop holes 23 are formed is the portion where the bobbin threads 2b are formed; The unformed portion 23a is the upper thread 2a.
This is the part where is formed.

Next, the punched sheet 6 inserted into the guide path 7 is advanced by the feeding mechanism. This feeding mechanism is constituted by the rotation of a gear that is interlocked with the upward movement of the support 5. First, handles 24 are swingably provided on both sides of the main body 1, and a cam 25 is formed on the handles 24. The cam 25 is provided facing the cam receiving shaft 12 of the support body 5,
By swinging the handle 24, the cam 25
pushes up the cam receiving shaft 12, thereby causing the support body 5 to move upward. At this time, a claw 26 biased by a spring 27 is provided on the side of the support body 5.
The pawl 26 meshes with a ratchet wheel 28 formed on the side of the main body 1. A feed wheel 30 is fixed to the ratchet wheel 28 and the same shaft 31, which is provided with protrusions 29 on the outer circumferential surface that are equal to the spacing between the feed wheels 21 of the punched sheet 6. Further, the feed wheel 30 is connected to the feed holes 2 on both sides of the punch sheet 6.
A protrusion 29 is provided to engage with the lower part of 1. Therefore, when the support body 5 moves upward, the claw 26
rotates the ratchet wheel 28 by a predetermined rotation angle, and as the feed wheel 30 rotates in conjunction with this, the protrusion 29 that engages with the feed hole 21 of the punch sheet 6 moves the punch sheet 6 by one row of the drop holes 23. Just postpone it.

When using handloom A with the above configuration,
First, the handle 24 is operated to move the support body 5 upward, and after inserting the punched sheet 6 into the guide passage 7, the handle 24 is returned to its original position. At this time, thread hook 4
descends onto the opening 16 of the guide channel 7. Since the opening 19 faces the first horizontal row of holes 23 of the punched sheet 6, the leg portion 14 of the thread hook 4 facing the hole 23 falls into the hole 23. Sink. Those not facing the drop hole 23 are held in the same position because the legs 14 touch the upper surface of the punch sheet 6. By distributing the thread hooks 14 vertically in this way, the warp threads 2 are also distributed vertically. Therefore, these upper and lower threads 2a, 2
Pass the shuttle between b. After that, when the handle 24 is swung, the feed mechanism is activated and the punch sheet 6 is advanced by the next horizontal row. When the handle 4 is returned to its original position, the punched pit hole 2
Since the thread hook 4 and the warp threads 2 are distributed vertically according to step 3, the shuttle is inserted on the opposite side. By sequentially repeating this operation, the texture pattern of the pattern formed by the punch sheet 6 is completed.

Next, according to the punch sheet 4, in addition to the vertical distribution of the warp yarns 2, the thread hook 16 also moves up and down along the drop holes 22 of the punch sheet 6. Therefore, by attaching a piece of the weft yarn actually used to the upper end of this marker 16, it is possible to fully confirm whether the feed has been performed when this marker 16 goes up, and which color yarn will be woven next. Can be done.

[Brief explanation of the drawing]

Figure 1 is an overall view of the handloom according to the present invention, Figure 2 is an overall view of the handloom according to the present invention;
The figure is an exploded perspective view of the main parts of the hand loom, Figure 3 is an explanatory diagram of the vertical movement mechanism of the support, Figure 4 is an explanatory diagram of the punch sheet feeding mechanism, and Figure 5 is an enlarged perspective view of the thread hook. Figures 6a and b are explanatory diagrams of the operation of the thread hook, Figure 7
Figures a and b are explanatory diagrams of the principle of fabric. Code A...Hand loom, 1...Main body, 2...Warp,
3... Weft, 4... Thread hook, 5... Support, 6
... Punch sheet, 7 ... Guide path, 13 ... Threading groove, 14 ... Leg section, 16 ... Marker, 19
...Opening portion, 20...Guide piece for plain weave sheet, 2
1...Feed hole, 22...Marker drop hole, 23
... Pithole, 28... Rattle wheel, 30... Feeding wheel.

Claims (1)

[Scope of Claims] 1. An apparatus for vertically distributing warp threads in a handloom, characterized by having the following requirements. (a) The main body of the handloom shall be provided with a support that can be moved up and down to support the thread hook for hanging the warp threads. (b) The thread hanging device should engage approximately in the middle of each warp thread stretched on the main body of the handloom, and pass through the support body. (c) At a position of the support body facing below the thread hook, the holes for the thread hook are arranged in a direction perpendicular to the warp, and the feed holes are arranged in a constant direction along the warp. Punch sheets arranged at intervals are movably provided along the warp. (d) The handloom main body is provided with a feed wheel that rotates in conjunction with the vertical movement of the support, and protrusions are formed at intervals on the outer peripheral surface of the feed wheel. (e) The protrusion of the feed wheel engages with the feed hole of the punch sheet, and the feed wheel is rotated so as to move the punch sheet by one row of slot holes when the support moves up and down once. .