JPS60119245A - Production of heald - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Ki Ao provides a method for manufacturing a heel supported on a heddle frame for a loom;
Specifically, a narrow intermediate portion has a thread type through hole, and a wide i'il? has a notch or hole for retaining the belt bar. The present invention relates to a method of manufacturing a belt comprising an If@ portion.

Conventionally, belts having the above-mentioned configuration have been manufactured by the following method.

In other words, as shown in FIG. 1 (a), a single rectangular rolled metal having substantially the same width (j) over its entire length as the wide end portions (ag) + (ag) after manufacturing. The punching process is performed on the plate (b) in the dotted hatched areas (c) and the solid hatched areas (d).
)... As a result, as shown in Figure 1 (b), the thread type through hole (s)
'A narrow intermediate part (al) and a retaining notch (or hole) (f) to the belt par (not shown),
A belt (al) was produced in which two wide end portions (a and at) were integrally constructed.

The reason why the middle part (al) of the belt (a) is made narrow and the end parts (aM) and (ax) are made wide is that the engagement part with the belt par (not shown) This is because there is a basic requirement to reduce the overall weight of the belt (a) as much as possible while ensuring sufficient strength at both shoulder portions (al) + (ax).

However, when using such conventional methods, there are various points as described below.

That is, the polishing machine used in the scraping process of the solid hatched area (d) is extremely expensive not only in terms of initial cost but also in terms of running costs and maintenance costs. . . . occupies a fairly large area, so polishing requires a considerable amount of time and wastes a lot of material (rolled metal plate), resulting in extremely high manufacturing costs. Furthermore, the edges after polishing become sharp edges and the product does not hold up very well.

The present invention has been made in view of the above-mentioned conventional situation, and its purpose is to provide a method of manufacturing a belt with a good finish at low cost by eliminating or minimizing the need for a polishing process. It is to do so.

Hereinafter, first, embodiments of the present invention will be described based on the drawings.

As shown in Figure 2, there are two relatively wide and short metal plates (ill, il+) and seven relatively narrow metal plates (2).
) and prepare. As these metal plates, it is desirable to use, for example, so-called rolled metal plates, which are formed by pressing a steel round bar so that both edges thereof are rounded. Then, the wide rolled metal plates (1), (1
), a very small part (la
)... On the other hand, for the narrow rolled metal plate (2), holes were punched in the part (2a) indicated by the dotted line, and at the same time, the part (2a) indicated by the dotted line was twisted as indicated by the dashed line. administer.

Wide rolled metal plates at both upper and lower ends formed in this way +11
, il+ and the intermediate narrow rolled metal plate (2) are welded or welded using a laser beam or an electron beam, for example.
Alternatively, the eighth
As shown in the figure, there is a narrow middle part (4) having a substantially rectangular thread passing hole (3), and a so-called C-shaped engagement notch for the belt paring hole a21, which will be described later with reference to FIG. (5), I5), wide end portions 1B+,
+61 C-type riderless type belt (7
) All products are manufactured.

In the figure, +81 and 181 indicate joints.

In addition, in the above embodiment, each solid line diagonal line portion (la)
Scraping process of fist and each dotted line hatched area (lb)
After completing the perforation step (2a), we have shown a method of joining the wide rolled metal plates ill and fi+ at both ends and the narrow rolled metal plate in the middle (2), but in contrast to this, The technical scope of the present invention also includes a case where both types of rolled metal plates [11, tl+, (21) are first bonded and then the above-mentioned shaving process and perforation process are performed. In order to eliminate the need for a polishing process for the solid hatched portions (la) of the narrow rolled metal plates ill and ill+ at both ends, for example, these portions (1a) are cut off by punching, or Alternatively, a method may be adopted in which a wide rolled metal plate having a desired shape is directly obtained by rolling an irregularly shaped round bar with both ends having a small diameter.

FIG. 4 schematically shows a state in which a large number of C-shaped riderless type belts (7) obtained as described above are set in a belt frame (9).

In other words, two horizontal beams 101, upper and lower, are parallel to each other.

(10) are connected and fixed by the left and right side stays (1 river), and the upper and lower lateral W: LIOI, tlol are connected to each other on the opposing edge sides, that is, the lower edge of the upper cross beam (10), and the lower Attach a belt bar (O), Og) to each upper side f@edge of the side cross beam (lO), and connect a large number of belts (7)-- to the upper and lower belt bars (7) to each of the wide ends +61 of the upper and lower belt bars. , +61 notch (5)
, (5) are attached to the upper and lower belt bars (1, aa), and a guide plate is attached to the upper cross beam (10).
...and hanging 7tsuku i41.

(1), and on the other hand, a bent-back type guide plate (to) is attached to the lower cross beam (10), and a heald frame for a riderless type loom is installed at the bottom of the tank.

FIG. 5 shows a J-type egress type belt (7) in which so-called J-shaped belt bar retention notches (5), (5) are formed in both wide end portions IEil, 161, and the sixth The figure shows a so-called cross-type belt +71, which has nine belt bar retaining holes (5) and (5) formed at both wide end portions +61 and +61, respectively. +- is shown. Belts of this type (7+, +71) are also manufactured in a similar manner to that described above.

In summary, the method for manufacturing a belt according to the present invention is a method for manufacturing a belt comprising a narrow intermediate portion having a hole for thread type 4, and wide end portions each having a notch or hole for engagement with a belt bar. The present invention is characterized in that the narrow intermediate portion and the wide end portions are formed of separate metal plates, and the separate metal plates are joined together.

The functions and effects achieved by employing such distinctive means are as described above.

That is, from a modified rectangular-i, pA board having widths corresponding to the wide parts at both ends over the entire length, 11
1 Rather than obtaining a belt with the above-mentioned shape only through the cutting process using Ill, wide end portions'
? For example, a correspondingly wide and short metal plate is used as the material for composing the width, and a correspondingly narrow and long metal plate is used as the material for configuring the narrow middle part. By using a different material, the number of parts that require a polishing process can be minimized, or even eliminated, and even if necessary, the cost of the polishing machine is reduced. At the same time, running costs and maintenance costs can be significantly reduced, and waste of materials can be almost eliminated.
Furthermore, while the polishing process, which takes a long time, is reduced to a minimum, only a bonding process, which takes a very short time, is added.
It is possible to significantly improve manufacturing efficiency, and the above effects combine to significantly reduce manufacturing costs as a whole (
We have now reached the point where it is possible to achieve the conventional method (which only costs about J). Since there are few cases and polished parts, the product has a good finish and the yield is excellent.

[Brief explanation of the drawing]

1(in) and 1(b) are diagrams for explaining the entire conventional method, FIG. 1(a) is a half view for explaining the manufacturing method, and FIG. 1(b) is a plan view of the conventional product. 2 to 6 are diagrams for explaining the method of manufacturing a belt according to the present invention, in which FIG. 2 is a half-view for explaining the manufacturing method, FIG. 3 is a plan view of the product, and FIG. The figure is a front view showing the state of use, and Figures 5 and 6 are horizontal plan views of products of different shapes. fi+... Wide metal plate, (2)... ... Narrow metal plate, (3) ... Thread insertion hole, (4) ...
...Narrow middle portion, (6)...Engagement notch or hole, (6)...Wide end portions, (7)
...Meeting - Belt, 02) ... Belt par 0 agent Patent attorney Osamu Kitamura

Claims (1)

[Scope of Claims] A narrow intermediate portion (4) having a thread type passing hole (3), and a notch hole (5) for securing the belt bar to the center.
, (5) respectively, the wide end portions tel, il
! +, the narrow middle portion (4) and both wide end portions tel, t.
il+ and separate metal plates tll and ill
, +21, and these separate metal plates (1), (1
), (2) A method for manufacturing a belt characterized by joining them together.