JPS635490B2 - - Google Patents

Description

[Detailed description of the invention]

<<Industrial Application Field>> The present invention relates to a selvage forming device, and more particularly, to an improvement of a device for forming a selvage of a woven fabric using a selvedge structure. The rolled weave is formed by the rolled warp, ground warp, and weft, but in this inward folded texture, the rolled warp is always above the weft. The present invention is directed to a technique for forming an ear rim using the strained tissue in the strained tissue. 《Prior art and its problems》 When forming a retraction structure, it is necessary to change the position of the retraction meridian to the left and right of the earth warp by an appropriate number of picks so that the retraction meridian is entwined with the earth warp. . Various types of forming devices have been used for this work, but all of them have at least one of the following drawbacks, and none of them are sufficient from the viewpoint of operation and effect. The current situation is that this is not possible. (b) In order to form a sufficiently strong ear rim, the structure had to become larger and more complex. (b) Because it is dynamically complex and has many moving parts, it is prone to breakdowns and lacks durability as a device. (c) Since the contact points between the yarn and the yarn guiding member are limited, the yarn path tends to get stuck, and it is necessary to frequently replace parts in order to avoid yarn fluffing and yarn breakage. (d) Since the motion of related members is complicated, it is difficult to follow the high-speed operation of the tissue, and it is also difficult to increase the number of strokes. (e) Due to its complex structure, there are many parts that cannot be seen from the outside, which not only makes it difficult to detect failures but also makes maintenance work difficult. (f) When moving the thread for kneading, the thread is forced to bend unreasonably, which tends to damage the thread. <<Object of the Invention>> The present invention was proposed with the aim of eliminating the above-mentioned conventional drawbacks. <Basic Structure of the Invention> In order to achieve the above object, the basic structure of the present invention is as follows: Two rods 2 and 4 vertically installed parallel to each other and spaced apart from each other are arranged alternately at approximately equal intervals for each pick. The upper and lower holders 6 are operatively connected to the heald to move up and down by the distance, and are loosely fitted to these rods.
a, 6b are fixed to the upper holder and extend downward, so that when one of the rods descends, the lower holder 6b rises by the same distance. The guide needle 10 has guide holes for ground conduction at its upper and lower ends, and a first guide plate 2 fixed to one of the rods 2.
The third rod 2 fixed to the other rod 4 has an outer downward slope 222 for guiding the retraction line, the inner end of which is located inside the guide hole of the guide needle, and the outer end of which is located outside of the guide hole of the guide needle. Guide plate 2
6 has an inner downward slope 262 for guiding the curvature line, the outer end of which is located outside the guide hole of the guide needle, and the inner end of which is located inside thereof, and is fixed to the lower holder and extends upward. Second
The guide plate 24 has a triangular through hole 242 for conduction through the triangular shape whose upper apex corresponds to the position of the guide hole of the guide needle.
The basic configuration is such that the first to third guide plates are parallel to each other and spaced apart from each other in the front-rear direction. That is, its characteristics are, firstly, that it is based on the so-called MAV method, which has a single stroke, and secondly, that it utilizes the opening movement of the heald to cause related members to perform only simple vertical movements. The third point is that the contact area with the thread is enlarged by distributing the thread to the left and right by contact with the slope of three sets of guide plates that reciprocate up and down, and the fourth point is that the contact area with the thread is enlarged. The point is that the above-mentioned distribution to the left and right can be performed by simply bending slightly from the original running direction. <<Example>> Hereinafter, an example will be described based on the attached drawings. In the following explanation, in order to make it easier to understand, the device will be described as being installed on a loom, and from this perspective, expressions such as "upper, lower, front and back" will be used.
Of course, it is not limited to these expressions due to its structure. "Front and back" refers to the fabric side being the "front" and the warp beam side being the "rear" when attached to the loom. Illustrated in FIG. 1 is an embodiment of the apparatus of the invention. The front rod 2 and the rear rod 4, which are spaced apart from each other and extend parallel to the vertical direction, have upper and lower pieces 2a, 4a and lower pieces 2b, 4b, each having a larger cross-sectional area, integrally formed at the upper and lower ends thereof. Through these pieces, both rods 2 and 4 are connected to respective plain weave healds (not shown) so as to move up and down as one unit. A guide needle holder 6a (hereinafter abbreviated as "upper holder") is located below the upper pieces 2a, 4a and is loosely fitted to both rods 2, 4.
A guide plate holder 6b (hereinafter abbreviated as "lower holder") is also loosely fitted to both rods 2 and 4 at positions b and 4b. These holders 6
Both ends of a spring (not shown) arranged at the rear are appropriately connected to a and 6b, and the spring force causes the upper holder 6a to connect to the upper pieces 2a and 4a, and the lower holder 6b to connect to the lower piece. It is in a state where it is elastically pressed by 2b and 4b, respectively. In this invention, the above structure is combined with a guide plate assembly 20 consisting of three sheets: front, middle, and rear. As shown in FIG. 3, this guide assembly 20 is composed of a front guide plate 22, a guide plate 24, and a guide plate 26.
24 and 26 are provided at substantially the same vertical position, substantially parallel to each other, and spaced apart from each other in the front and back, as will be described in detail later. In addition, in the drawings, in order to facilitate understanding, the above-mentioned separation distance is illustrated to be slightly larger than the actual distance. As shown in FIG. 2A, the front guide plate 22 has a trapezoidal convex portion on its upper edge, and is fixed to the front rod 2 via a holder 28. The above-mentioned convex portion is a slope 2 that extends downward from the inside to the outside of the guide hole corresponding position of the left and right guide needles 10 when viewed from the front.
22 on both edges. The inner ends of these slopes 222 are located inside the guide hole of the guide needle 10, and the outer ends are located outside. As shown in FIG. 2B, the middle guide plate 24 has a pair of triangular through holes 242 on the left and right sides, and is fixed to the lower holder 6b. The upper apex of the through hole 242 is located at the corresponding position of the guide hole of the guide needle 10, and the outer apex is located outside of the guide hole. As shown in FIG. 2, the rear guide 26 has an inverted trapezoidal recess on its upper edge, and is fixed to the rear rod 4 via a holder 30. The above-mentioned recess is a slope 26 that extends inwardly from the outside to the inside of the guide hole corresponding position of the left and right guide needles 10 when viewed from the front.
2. Figure 4 shows each guide 22, 2 in the closed state.
4, 26 and the guide needle 10. In this state, each guide plate 22, 24,
26 is located below the guide hole of the guide needle 10, and its upper edge is substantially on the same plane. Furthermore, in this state, the vicinity of the upper apex of the through hole 242 of the middle guide 24 does not overlap with the front and rear guide plates 22 and 26 when viewed from the front, and the outer edge thereof does not overlap the slope 222 of the front guide plate 22.
The dimensional relationship is such that it is located further outward. The operation of each part is outlined below. When the front rod 2 goes up, the rear rod 4 goes down by the same amount. As the rear rod 4 descends,
Since the rear guide plate 26 is also fixed thereto, it descends by the same distance. Further, since the upper holder 6a is also pushed down by the upper piece 4a, the guide needle 10 supported by the upper holder 6a is also lowered by the same distance. Furthermore, as the front rod 2 rises, the lower holder 6
Since b is pushed down by the lower piece 2b,
The middle guide plate 24 supported by this and the front guide plate 22 fixed thereto also rise by the same distance. When the front rod 2 descends, the rear rod 4 rises by the amount of the descent. With the rise of the rear rod 4,
The rear guide plate 26 also rises by the same distance. Furthermore, since the lower holder 6b is pushed up by the lower piece 4b, the middle guide plate 24 supported by it is also raised by the same distance. Further, as the front rod 2 is lowered, the upper holder 6a is pushed down by the upper piece 2a, so that the guide needle 10 supported by the upper piece 2a and the front guide plate 22 fixed thereto are lowered by an equal distance. The following operational relationships are summarized in a table.

[Table] That is, as the front rod 2 moves up and down (and the rear rod 4 goes down and up), (a) the guide needle 10 always moves down by the same distance as this, and (b) the front guide The plate 22 is raised and lowered, (c) the middle guide plate 24 is always raised, and (d) the rear guide throat plate 26 is lowered and raised. Next, with reference to FIGS. 4, 5A, and 5B, a description will be given of the operation of forming the ear edge of the retracted tissue using the apparatus having the structure and operation as described above. To thread the thread, insert the thread warp TY through the through hole 242 of the middle guide plate 24, and thread the ground warp GY through the upper, lower, left, and right guide holes of the guide needle 10, respectively. Figure 4 shows the shed in a closed state. The ground meridian GY passes through the guide hole of the guide needle 10, and the
TY is restrained through the vicinity of the upper apex of the through hole 242 of the middle guide plate 24. In this state, the sutra
TY is located at almost the same location (left and right) as the geological longitude GY. FIG. 5A shows a state in which the front rod 2 is rising and the rear rod 4 is descending during opening. As is clear from the above table, along with this, the guide needle 10
is lowered, the front guide plate 22 and the middle guide plate 24 are both raised, and the rear guide plate 26 is lowered. In other words, only the front and middle guide plates 22 and 24 are engaged with the stroke TY, and the rear guide plate 26 is released from this engagement. Therefore, the stroke TY is pushed outward by the slope 222 of the front guide plate 22 and moves toward the middle guide plate 2.
It moves outward through the through hole 242 of No. 4. When the opening is completed, the drawer TY is on the front guide plate 22.
It comes to the outer end of the slope 222 of , that is, the position outside the geological longitude GY restrained by the guide needle 10. FIG. 5B shows a state in which the front rod 2 is lowering and the rear rod is rising when opening. As is clear from the above table, along with this, the guide needle 10 descends, the front guide plate 22 descends, and the middle and rear guide plates 24 and 26 rise. In other words, only the middle and rear guide plates 24 and 26 engage with the cursor TY, and the front guide plate 22 disengages from this engagement. Therefore, the stroke TY is pushed inward by the slope 262 of the rear guide plate 26 and moves inward within the through hole 242 of the middle guide plate 24. When the opening is completed, the opening TY is on the slope 2 of the rear guide plate 26.
62, that is, the position inside the earth's longitudinal direction GY restrained by the guide needle 10. By repeating the above steps, you can create TY
are located alternately on the inner and outer sides of the ground meridian GY for each pick, so the ear edge of the two-branched and one-cross tissue is formed. In this embodiment, the edge of the through hole 242 of the middle guide plate 24 and the slope 2 of the front guide plate 22
22 (in the case of FIG. 5A) or the slope 262 of the rear guide plate 26.
TY is guided through the diagonal hole (in the case of FIG. 5B) defined by the inner and outer holes, and the distribution of the sutra TY to the inside and outside is performed reliably and stably. In addition, in the case of Figure 5 A and B, the force that causes the stroke TY to move along the slope is
Since TY is the upper opening, the tension of the thread generates a downward force. <<Effects of the Invention>> As is clear from the above explanation, the following effects can be obtained according to the present invention. (b) With each Ikkoshi period, the ``Urami-kyo'' changed to the ``Gi-kei'' and adopted the so-called MAV method, which resulted in an overall compact and simple structure, despite the fact that a very strong rim was obtained. (b) Since the movement of each member is only vertical movement using the opening movement, there are few movable members and the device is highly durable. (c) Since the thread warp slides in and out along the slope of the guide plate, it is difficult for the thread path to reach the member that comes into contact with the thread. Therefore, not only the service life of the parts is extended, but also thread fuzz and thread breakage are significantly reduced. (d) Since the reeling is performed only by the reciprocating movement of the guide plate, the movement of related members is simple and easy. Therefore, the operation of the device can sufficiently follow the high speed operation of the loom.
Also, the number of strokes can be increased relatively easily. (e) Since each part of the device can be seen and touched, it is not only easy to discover failures, but also easy to maintain. (f) When sorting the threads for kneading, the threads are not forced to bend, so the threads are not damaged.

[Brief explanation of the drawing]

FIG. 1: A perspective view showing one embodiment of the present invention.
FIG. 2: A front view showing the above main parts in an exploded state. Third; a perspective view showing the main parts. FIG. 4: A front view showing the main parts in an assembled state. FIGS. 5A and 5B; Front view also illustrating the kneading work. 2, 4... Rod, 6a, 6b... Holder,
10... Guide needle, 20... Guide plate assembly, 2
2, 24, 26...Guide plate, 28, 39...Holder, TY...Urami-kei, GY...Gi-kei, W...
Weft.

Claims (1)

[Scope of Claims] 1. Two rods 2 and 4 vertically arranged parallel to each other and separated from each other are operatively connected to a heald so as to alternately move up and down approximately equal distances for each pick. Loosely fitted upper and lower holders 6
a, 6b are elastically biased so that they are unevenly distributed at the upper and lower ends of the rods, so that when one of the rods descends, the lower holder 6b rises by an equal distance, and is fixed to the upper holder and moves downward. The extended guide needle 10 has guide holes for ground conduction at its upper and lower ends, and a first guide plate 2 fixed to one rod 2.
2 has an outer downward slope 222 for guiding the curvature, the inner end of which is located inside the guide hole of the guide needle, and the outer end of which is located outside of the guide hole of the guide needle. guide plate 2
6 has an inner downward slope 262 for guiding the curvature line, the outer end of which is located outside the guide hole of the guide needle, and the inner end of which is located inside the guide hole, and is fixed to the lower holder and extends upward. second
The guide plate 24 has a triangular through hole 242 for conduction through the triangular shape whose upper apex corresponds to the position of the guide hole of the guide needle.
An ear rim forming device, comprising: the first to third guide plates being parallel to each other and spaced apart from each other in the front-rear direction.