JPS636118A - Needle cloth for fiber preparatory machine, especially, combor card - 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 [Industrial Field of Application] The invention comprises a sawtooth stamped part or a plurality of sawtooth stamped parts, each of which serves as a holding part on a base body. and one or more teeth extending away from the base and inclined in the processing direction, the tips of the teeth having a predetermined distance from the base, this distance being defined as the tip height. Textile preparation machines, especially clothing for combing, carding, etc.

[Conventional technology]

Sawtooth punched parts containing clothing of the type described above are formed in completely different shapes depending on the respective intended use.

For example, the clothing may be formed by a stretched endless carding belt as a sawtooth punched part;
It may also be formed by a row of serrated punched parts. Each stamped part is provided with one tooth, and such rows of stamped parts are connected to one another, for example by soldering at the base. In particular, however, there are many clothing garments in which the locking body is formed by arranging sawtooth punched parts with a plurality of teeth, for example six teeth. In this case, such locking bodies are fixed to the coaming segments of the coaming cylinder, for example by dovetail connections.

Studies have shown that, with respect to the combing action, the tip height and spacing of adjacent sawtooth punchings parallel to each other are important, among other parameters.

If the spacing of the sawtooth stampings, which defines a free passage between adjacent sawtooth stampings, is too large, the compression of the individual fibers against each other is weakened and the combing action is reduced. - way,
If the spacing is too narrow and the free passage is too small, the fibers will not enter sufficiently and will not be processed, but will be pulled "floating" over the tips, possibly without being combed.

[Purpose of the invention]

Starting from the above, the underlying idea of the invention is to create a clothing that is well-groomed so that the combing finish and fiber flow are improved.

[Structure of the invention]

This object is achieved according to the invention in that the teeth of the sawtooth punched part have at least two different tip heights, viewed perpendicularly to the respective processing direction. For example, in the case of combing cylinders, the direction perpendicular to the processing direction is to be understood as the direction parallel to the axis of rotation of the respective combing cylinder.

〔Effect of the invention〕

With this configuration of the present invention, the movement condition of textile processing is favorably influenced. This is because the fibers are captured by the long teeth and brought to the area of strong processing action formed under the teeth,
The necessary fiber compression, cleaning or fiber guidance is then carried out by the teeth with a low tip height. Thus, according to the invention, a relatively large free channel is created in the insertion region, so that floating of the fibers is avoided, and the shorter teeth ensure a fully cooperative processing. The difference in tip height is preferably 115 or more of the height of the large tooth.

[Preferred embodiments of the invention and their effects] In a preferred embodiment, the clothing has a plurality of sawtooth punched parts having different tip heights, the tip heights of the individual sawtooth punched parts are the same, and the tip heights are different. The different sawtooth punched parts are arranged one after the other in a direction perpendicular to the processing direction.

This ensures that between the sawtooth punched parts with high tip height
A narrow passageway is formed parallel to the plane of the sawtooth punched part. The bottom of this narrow passage is provided with a serrated die-cut with a low tip height. In order to improve the machining effect in the case of combing cylinders, it can be provided, as is known, for the plane of the sawtooth punched part to form an acute angle with the end face of the combing cylinder, which is perpendicular to the axis of rotation.

In any case, the fibers are reliably inserted into the narrow passages by the long teeth, and all are additionally processed by the short teeth placed there.

Depending on the material to be processed, the distance between the tooth tips in the longitudinal direction of the combing segments is selected. that time,
The individual sawtooth segments may be arranged closely next to each other or their respective tip spacings may be obtained by grinding the teeth, as is known in the art, by cutting out spacers of the same height as the base between the sawtooth stamped parts. It is possible to insert it at the level of the part or to form a spacer shoulder integrally in the region of the base.

In a further preferred embodiment of the invention, each sawtooth punched part has alternating teeth with different tip heights, viewed in the processing direction. This embodiment does not have to be machined with integrally shaped sawtooth die-cut parts and is, of course, also suitable for endless "carding wire clothing".

In this embodiment, between the long rows of teeth, narrow passages formed by the short teeth are formed in the following directions. In other words, depending on the selected offset of longitudinally successive sawtooth punched parts, a narrow passage is formed in a direction at an angle to the end face of the combing cylinder perpendicular to the axis of rotation. The angles in this embodiment are basically the same as in the previous embodiment.

In both of the abovementioned embodiments, it is preferred that the sawtooth stampings are oriented perpendicularly to the machining direction, such that the points of successive sawtooth stampings are offset from each other by approximately half the spacing of two adjacent teeth of the sawtooth stamping. They are lined up. Such an offset can be obtained, for example, by forming differently arranged fixing recesses in the base of the sawtooth punched part, so that the offset occurs automatically during installation. By providing such an offset, the tips are distributed as evenly as possible over the surface of the clothing.

If two types of sawtooth punchings with different tip heights are provided, the tip height of the lower teeth is 1/20 to 2/3 of the tip height of the higher teeth. In embodiments for cotton, the tip height ratio is about 8:20 and for embodiments for combing wool, about 8:25.

The effect to be obtained by the present invention can also be achieved in principle in the following case. This is achieved even if the sawtooth punched part with a low tip height has a somewhat uneven outer diameter.

That is, it is not necessary to arrange the individual teeth regularly, and when the individual teeth are formed,
This tooth, although preferred, does not necessarily have to be in a fixed position relative to the large tip height tooth.

〔Example〕

Other features, advantages and details of the invention will become apparent from the following description of preferred embodiments.

In FIGS. 1a and 1b, a so-called endless carding wire is shown as an M-tooth stamped part l formed according to the invention. The base 2 of this belt-shaped card wire is provided with teeth 5.6. This base is provided with a spacer shoulder 3 having an upper edge 4. The tip height I1 of the eruption tooth is determined by the distance between the upper edge 4 defining the base 2 and the tip. What is the height of the tip of tooth 6? It is lower by X than the tip height H of I5.

Figures 2a and 2b show card wires similar to those described above. This card wire is in the form of a cutout consisting of two parts arranged one behind the other in the longitudinal direction and separated from one another by a spacer element 7. The parts 8 or 9 are then offset from one another in such a way that the small tooth 6 is located behind the high tooth 5 of the tip height H.

FIGS. 3a and 3b show two sawtooth punched parts 10.11 arranged one behind the other. +: The sawtooth punched part 10 located in the ri direction is provided with a fully extending tooth 6 with a low tip height. - On the other hand, the sawtooth punched part 11 located at the rear has a tooth 5 having a tip height H higher by X.
It is equipped with In this embodiment, the sawtooth punched part 10
．． 11 are lined up alternately forming locking bodies. This locking body is held via a longitudinally extending rod (not shown), which is located at the base 13 of the punched part 10 or 11.
It passes through the notch I2.

Points t of punched parts 10 or 11 arranged one after another
A mutual deviation V of 4 or 15 corresponds to approximately half of the tip distance A between adjacent tips 14.

The sawtooth punched parts 10.11 are closely aligned. In this case, the tip spacing S in the longitudinal direction results from the grinding of the tooth 5 or 6.

A locking body consisting of a row of serrated punched parts 10.11 can be fastened via dovetailed grooves 16 to the coaming segment 17, as shown in FIG.

When fixed in this way, the tip 14 of the large tooth 5 or the tip +5 of the small tooth 6 is aligned with the circle 1 concentric with the center of rotation M.
Located on 8 or 18'. In this case, the outer circle I8
The radius R of is the dimension corresponding to the tip height 11.

Figures 4a and 4b are basically the same as Figures 3a and 3.
It shows the same shape as figure b. However, in the case of this variant, instead of different sawtooth stampings 10° 11 with teeth of different heights and the same height as one another, they are provided with alternating high tII 5 and low teeth 6 viewed in the direction of rotation. Sawtooth punched parts! It is 9.

In this embodiment, in the area of base 1120, there is a spacer shoulder 2 which is approximately the same as in the embodiment of FIGS. 1λ and 1b! is provided.

Figures 5a and 5b show sawtooth punching;
An embodiment is shown in which each tooth 3 is provided with one tooth 5 or 6. The sawtooth stamping part 22 is provided with long teeth 5 and the sawtooth stamping part 23 is provided with a short IJ6. The sawtooth punched parts 22 or 23 are arranged one after the other.

In this case, the pressure loads 24 can be connected to each other, for example by brazing.

FIG. 6 shows a modification of the embodiment of FIGS. 5a and 5b. In this case, a spacer element 25 is provided between each sawtooth punched part 22 or 23.

FIG. 7 shows a construction in which M174 stampings 10, 11 of the type shown and described in FIGS. 3a and 3b are arranged in a combing segment 17. This combing segment is fastened to a combing cylinder 26, which is shown suggestively. The sawtooth punched parts 10, 11 are put together to form a locking body 27. In this case, the locking body 27 holds its recess 16 against the holding rod 2.
It is fixed to the combing segment by snapping into the combing segment 8. The holding rod is bolted to the coaming segment 17 by means of a threaded hole 29 and a bolt 30.

The fastening of the sawtooth stamped part according to the invention on the basic body does not necessarily have to take place via a fastening segment, such as a combing segment, but the sawtooth stamped part can also be fastened directly to the basic body, for example a combing cylinder.

8 and 9 show details of the embodiment corresponding to FIGS. 3a and 3b. That is, the teeth 5 with a low tip height II −x ) of the sawtooth punched part 10 and the teeth 6 with a high tip height I( ) of the sawtooth punched part 11 are
They are arranged alternately in a direction perpendicular to the combing or rotational direction and parallel to the central longitudinal axis of the combing cylinder 26. The embodiment shown in FIG. 8 is particularly suitable for combing cotton, while the embodiment shown in FIG. 9 gives particularly good results when combing wool.

In the embodiment shown in FIG. 8, the high tip height tooth has a leading edge and a trailing edge. These edges are not evenly sloped throughout in the rotational direction, and the lower portion 31 has a large slope.
From there, it transitions to a lower part 32 with a smaller slope. The lower teeth 5 are approximately the same but have a more rounded shape. The ratio of the height H-x of the tooth 5 to the height H of 1JI6 is about 8:25.

In the embodiment shown in FIG. 9, the regions 3I and 32 are clearly separated by a bend 33. In this case, the leading edge is designed in principle in exactly the same way.

A comparative experiment was carried out between the conventional clothing of very high quality and the clothing shown in Figure 8. At that time, Sudanese cotton was used. Although this Sudanese cotton is relatively inexpensive to obtain, it has special problems with combing. This is because this cotton contains sticky substances. At that time, the number of shells per 10m was increased from 4g to 2, and 1
The number of thin spots per 1,000 m was reduced from 54 to 44, the number of thick spots per 1,000 m was reduced to 21,111 and 154 fi, and the number of parasite eggs per 1,000 m was reduced from 211 to 128. did it.

In the case of a similar comparative experiment with the clothing of FIG. 9 in wool, the average breaking load increased from 277 to 294.4 in the durham, and the number of thick spots increased to too.

The number of parasite eggs decreased from 37 to 12 per m and from 94 to 46 per 1000 m.

The above results demonstrate a significant improvement even when compared to conventional high quality pointed clothing.

[Brief explanation of the drawing]

Figures 1a and 1b are cross-sectional and side views of the carding wire clothing, Figures 2a and 2b are cross-sectional views similar to Figure 11°Ib with spacers inserted between the sawtooth punched parts. Side view, Figures 3a and 3b and Figures 4λ and 4b
51 and 5b each with only one tooth. Fig. 6 is a sectional view of the same structure as Fig. 5b with a spacer inserted, Fig. 7 is a coming gun in the form of a lock body, showing a cross section. 8 is an enlarged side view of the embodiment for the line corresponding to FIG. 3b; FIG. FIG. 3 is an enlarged cross-sectional view of a similar wool embodiment. 1.8, 9, 10.11, 11, 19, 22.23...
・Sawtooth punching! Parts, 2...Base, 5゜6...
Teeth, Summer]...Tip height, D...Processing direction

Claims (1)

Claims: 1. A serrated die-cut part or a plurality of serrated die-cut parts, each of which has a base portion serving as a retaining portion on the basic body and a serrated die-cut portion in a direction away from the base portion. one or more teeth extending and inclined in the processing direction (D), the tips of the teeth having a predetermined spacing relative to the base, this spacing being defined as the tip height (H). In preparation machines, especially in clothing for combs, cards, etc., sawtooth punched parts (1, 8, 9, 10, 11, 19, 22, 23
) whose teeth (5, 6) have at least two different tip heights (
A clothing item characterized in that it has H). 2. The clothing has a plurality of sawtooth punched parts (8, 9, 10, 11, 22, 23) with different tip heights (H), and the individual sawtooth punched parts (8, 9, 10, 11, 22) , 23) with the same tip height (H) and different tip heights (H) (8, 9, 10, 11, 22, 2
3) are arranged alternately in a direction perpendicular to the processing direction.
Clothing as described in section. 3. Claim characterized in that each sawtooth punched part (1, 19) comprises alternating teeth (5, 6) with different tip heights (H), viewed in the processing direction (D). range 1
Clothing as described in section. 4. Successive sawtooth punched parts (1, 8, 9, 10, 1
The sawtooth punched parts (1, 8, 9, 10, 11, 2
2, 23) are arranged in a direction perpendicular to the processing direction. 5. Teeth (6) with high tip height (H-x) of low teeth (5)
The clothing according to claim 2, characterized in that the height (H) of the tip is 1/20 to 2/3 of the height (H) of the tip. 6. Clothing according to claim 5, characterized in that the ratio of point height (H-x) to point height (H) is approximately 8:20 for combing cotton. . 7. To comb the wool, set the tip height (H-x
Clothing according to claim 5, characterized in that the ratio of the point height (H) to the point height (H) is approximately 8:25.