JPH0343260Y2 - - Google Patents

Description

[Detailed description of the invention] <<Industrial application field>> This invention relates to a selvage device, and more specifically, to a leno device that forms the selvage edge of a woven fabric using a four-striped structure. .

《Prior art and its problems》 In general, as a four-stroke reno device, for example, the second
The ones shown in Fig. 3 and Fig. 3 are known.
That is, first and second heald frames H1 and H2, which move up and down in opposite directions, are arranged side by side in the front-rear direction of the loom, and a ground warp guide thread is connected to the lower end of the upper frame H1a of the first heald frame H1. An upper needle N1 in which a hole 1a is formed hangs down, and a lower needle N2 in which a ground warping yarn guiding hole 2a is formed at the upper end is erected from the lower frame H1b so as to be spaced apart from and opposite to the upper needle N1. has been done. 1st
The held frames are the upper and lower frames N1a and H1b.
A pair of guide rails 3A, 3B are arranged in parallel and spaced apart along both sides of the needles N1, N2 in the loom width direction.
A first slide guide 5 connected to a member connected to the heald frame H2 is attached to be slidable in the vertical direction. Stopper members 5a and 5b project from both upper and lower ends of the first slide guide 5 in a direction perpendicular to the needle, and a second slide guide 7 is provided between the stopper members 5a and 5b.
is provided to be slidable in the vertical direction between the guide rails 3A and 3B. Note that for convenience of explanation, illustration of the guide rail 3A in FIG. 3 is omitted.
This second slide guide 7 is a guide rail 3
A sliding braking force is applied between one or both of A and 3B, and it is set so that it will not slide unless forced force is applied.

The first slide guide 5 has a pair of diagonal thread guide grooves 15 arranged vertically symmetrically therethrough, and the second slide guide 7 has a pair of diagonal grooves 15 arranged vertically symmetrically therethrough. A thread guide diagonal groove 15 for the warp warp and a diagonal thread guide groove 17 for the warp warp, which are symmetrical to each other, are formed to be transparent therethrough.

The thread guide grooves 15, 17 of these slide guides 5, 7 and the thread guide holes 1a, 1b of the needles N1, N2 are guided by twisting and bending the twisted warp threads along a predetermined path.

Then, the thread guide diagonal groove 1 of the slide guides 5 and 7
Common thread guide holes 20a and 2 formed by overlapping threads 5 and 17
0b is located diagonally on both the left and right sides of the needles N1 and N2, and by changing the vertical relative position of both by vertical sliding of the slide guides 5 and 7, the needles N1 and N2 of the common thread guide holes 20a and 20b are The left and right positions relative to the ear are alternately changed, thereby forming a predetermined ear tissue.

By the way, in such an ear assembly device, both the slide guides 5 and 7 are connected to the two upper and lower needles N.
It is important that the arrangement of the drawn warp threads is reliably changed from side to side each time the threads pass between threads 1 and N2. That is, when the slide guides 5, 7 pass between the needles N1, N2, the yarn guide diagonal grooves 15, 1 of both slide guides 5, 7
It is necessary that the common thread guide holes 20a and 20b formed by overlapping the needles N1 and N2 are properly distributed to the left and right at the tips of the needles N1 and N2.

To do this, the needles N1 and N2 must be made thicker so that the ends where the thread guide holes 1a and 2a are formed do not swing, and the mutual positions of the slide guides 5 and 7 must not deviate near the ends of the needles N1 and N2. In this way, the common thread guide holes 20a and 20b may be formed at the same position.

However, the structure of the current ear assembly device is basically
As shown in the figure, slide guides 5 and 7 are configured to slide within grooves of guide rails 3A and 3B. Moreover, a magnet is provided on one side of the second slide guide 7, and at least the guide rail (3A in the illustrated example) on the side corresponding to the magnet is made of a magnetic material, and the second slide guide 7 is made of a guide rail. 3A, a sliding braking force is applied to the second slide guide 7, and the vertical movement of the first slide guide 5 makes it come into contact with the stoppers 5a, 5b of the first slide guide. When pressed, the guide portion 5a,
By sliding back and forth between the needles N1 and N2, the positions of the common thread guide holes 20a and 20b are distributed to the left and right sides of the needles N1 and N2.

However, when used for a long period of time, the close contact sliding surface of the slide guide 7, which is crimped to the guide rail 3A by the magnet, wears out, and both slide guides 5,
7 changes in the left-right direction, causing the common thread guide holes 20a, 20b to be dislocated, which makes it impossible to perform proper selvage, and the formation of the selvage tissue becomes unstable. There is.

[Purpose of the invention] This invention was proposed in view of the drawbacks of the conventional ear assembly device. By preventing the relative positions of the left and right slide guides from shifting, and by ensuring that the common thread guide holes defined by the thread guide diagonal grooves of both slide guides are located at the same position, the selvedge assembly device can be used for a long time. The purpose of this invention is to prevent the formation of ear tissue from becoming unstable even when the ear tissue is operated with the device in place.

<Basic structure of the invention> For this reason, in this invention, a guide structure is provided for the first slide guide and the second slide guide to guide the relative movement in the vertical direction while regulating the relative movement in the left and right direction between the two. The gist is that it is provided separately from the guide structure using rails.

That is, specifically, first and second head frames that move up and down in opposite directions are arranged in parallel in the front and back, and the first heald frame has an upper needle having a thread guide hole for warp at its lower end, and a second head frame that moves vertically in opposite directions. , and a lower needle having a thread guide hole for ground warp at the upper end are fixed with their ends spaced apart and facing each other, and a pair of guide rails are arranged in parallel and spaced apart on both sides of the needle. Between the rails, there is a first slide guide that is connected to a second heald frame and moves up and down, and a first slide that is temporarily stopped on the guide rail by a braking means and is moved by the movement of the first slide guide. A second slide guide that forcibly moves between the upper and lower ends of the guide is inserted, and both slide guides are each formed with oblique grooves that are inclined in a predetermined direction. A common thread guide hole for thread warping is defined by the opposing faces, and the common thread guide hole is distributed to the left and right sides of the needle by changing the relative position of both slide guides by vertical movement. The second slide guide regulates the relative movement of the first slide guide in the left-right direction and guides the relative movement of the first slide guide in the vertical direction.
It is something that you configure. Note that the first and second heald frames move up and down in opposite directions to each other, and are used not only for plain weaving, but also for plain weaving, in which two or more warps and wefts are raised and lowered at the same time, as in Nanako weaving. It may also be an opening method that weaves enlarged tissue.

<<Example>> As shown in FIG. 1, a center plate portion 51 is provided at the vertical center of the first slide guide 50 connected to the second heald frame via a connection member (not shown). A yarn guide diagonal groove 53 is formed in the plate portion 51 . The guide grooves 3a of the guide rails 3A and 3B are provided at the upper and lower ends of the center plate portion 51, respectively.
A guide portion 55 is formed to be slidably fitted into the portion 3b. A guide groove 57 extending in the same direction as the sliding direction of the first slide guide 50 is provided at a predetermined position (center position in the figure) in the horizontal direction (direction orthogonal to the guide groove) of the guide portion 55. It is formed.

The second slide guide 70 moves between the upper and lower guide portions 55 of the first slide guide 50, and both side surfaces of the plate portion 71 in which the yarn guide diagonal groove 73 is formed serve as guides for the guide rails 3A and 3B. Groove 3
a, 3b. The guide portions 5 of the first slide guide 50 are connected from the upper and lower ends of the plate portion 71, respectively.
A protrusion 75 is formed to protrude and extend toward the guide groove 57 formed in the upper and lower protrusions 7.
5 to the guide groove 5 of the first slide guide 50, respectively.
7 so that it can slide. The protrusion length of the protrusion 75 is set to such a length that the protrusion 75 does not come off the guide groove 57 even if the second slide guide 70 moves up and down between the guide parts 55 of the first slide guide 50. It is necessary to do so.

Guide rail 3 of second slide guide 70
A magnet 90 is firmly fitted to one of both sides of the plate portion 71, which is the portion to be inserted into parts A and 3B.

Of the guide rails 3A and 3B, at least the one on the side corresponding to the magnet (in the illustration, the right end guide rail 3A) must be made of a magnetic material.

Although the guide rail 3A made of a magnet 90 and a magnetic material is used as a braking means for the second slide guide 70, the guide rail 3A made of a magnet 90 and a magnetic material is not limited thereto. , 3B may also be used.

<<Operation and Effect>> According to this invention, when the first and second slide guides 50 and 70 move up and down to perform the ear assembly,
In the second slide guide 70, the upper and lower protruding parts 75 of the plate part 71 correspond to the guide part 5 of the first slide guide 50.
is inserted into a guide groove 57 formed in 5,
Moreover, since the plate part 71 is attracted to the guide rail 3A at the right end in the figure by the magnet 90 and slides up and down, the side surface of the magnet 90 of the plate part 71 that forms the braking surface is particularly worn due to this sliding. Since the relative momentum between the first slide guide 50 and the second slide guide 70 is approximately 1/5 or less compared to the momentum of the first slide guide 50, the sliding surfaces of both The wear of the guide groove 57 and the upper and lower protrusions 75 in the left-right direction is extremely small.
Therefore, the common yarn guide hole defined by the mutual overlapping of the oblique grooves formed in both slide guides simply moves to the wear side as a whole due to the above wear.
It has never happened that only one of the slide guides, that is, the second slide guide, is displaced due to friction as in the prior art.
Therefore, there is no change in the relative position of both oblique grooves formed on both slide guides, and the common thread guide hole can be maintained reliably even when the above-mentioned wear occurs, and the formation of the selvedge structure becomes unstable. The old days will disappear.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the main parts of the ear-closing device of this invention, and Figures 2 to 4 are a front view, a side view, and an exploded perspective view showing the main parts of a general ear-clamping device. It is a diagram. N1, N2... Needle, H1, H2... Heald frame, 3A, 3B... Guide rail, 5,
50...first slide guide, 7,70...second slide guide, 55...guide section, 57...
...Guide groove, 75...Protrusion, 90...Magnet.

Claims (1)

[Claims for Utility Model Registration] First and second heald frames that move up and down in opposite directions are arranged in parallel in the front and back, and the first heald frame has a thread guiding hole for ground warp at its lower end. An upper needle and a lower needle having a thread guide hole for ground warping at the upper end are fixed with their ends spaced apart and facing each other, and furthermore, a pair of guide rails are arranged in parallel and spaced apart on both sides of the needle. Between these guide rails, there is a first slide guide that is connected to a second heald frame and moves up and down, and a first slide guide that is temporarily stopped on the guide rail by a braking means. A second slide guide that forcibly moves between the upper and lower ends of the first slide guide is inserted therein, and both slide guides each have a diagonal groove inclined in a predetermined direction. A common thread guiding hole for the thread warp is defined by the opposing diagonal grooves, and the common thread guiding hole is defined by the change in the relative position of both slide guides due to the vertical movement of the two slide guides. is distributed to the left and right sides of the needle, and the guide structure guides the relative movement in the vertical direction while regulating the relative movement in the horizontal direction between the first slide guide and the second slide guide. An ear assembly device characterized in that it is provided separately from the structure.