DE1939683A1 - Pinch roller for separating fibers from a sliver for spindleless fine spinning machines - Google Patents

Description

Patent attorney

Dipl. Phys. Dr. Walther Juntas July 29, 1969

Hanover, Abbestr. 20, Tel 83 45 30 Dr J / Ha.

My file "I723

Vyzkumny fistav bavlnarsky, Usti nad Orlici - Czechoslovakia

Combing roller for separating fibers from a sliver for

spindleless fine spinning machines

The invention relates to a combing roller for separating fibers from a sliver, which is located in the housing of the combing device is arranged on spindleless fine spinning machines

For separating the fibers in the spindleless spinning process, combing rollers are known whose body has on its surface is provided with a sawtooth coating, wherein the coating can either be wound next to winding or in grooves The body of the combing roller is made of one piece and sits on the in Fixed bearings running shaft.

The disadvantage of a roller designed in this way is that

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that they cannot be used for all types of textile fibers is · Depending on its origin, the textile fiber has or its composition has different properties, which noticeably affect defibration up to "individual fibers". Depending on the properties, it is therefore necessary to use a sawtooth covering with different tooth shapes » Therefore, if the type of fiber material to be processed on the fine spinning machine changes, the entire combing roller must be replaced will. However, replacing this roller is time-consuming and laborious. Therefore they are practically spindleless Fine spinning machines only for a certain type of fiber material built »

However, a combing roller is known in which hinge with saw teeth and next to it intermediate rings on the supporting roller body be postponed. These hinge and intermediate rings are tightened and held in place by a flange. One disadvantage of this Execution is their relative complexity and cost. But the essential part is that in the butt surfaces between the rings and intermediate rings of fibers penetrate because the tooth profile has a discontinuous contour. Gradually adhere to the retained fibers more fibers, which then clogs occur on the surface of the combing roller or the fiber clusters tear off and wander into the spinning chamber, where they are cause yarn breakage. J has similar disadvantages the above-mentioned combing roller with the rolled up sawtooth coating

The invention overcomes this disadvantage. Task of the

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dung is to function properly through abolition of the joints between the windings of the saw tooth layers and the processing of different types of material by quickly replacing the combing roller without time-consuming Allow dismantling.

The invention consists in that the saw teeth on the one hand by a helical line applied to the outer part of the roller the hat, the profile of which has a rounding that merges continuously into the apex sections, and on the other hand formed by incisions that represent the chest and back surfaces of the saw teeth.

According to the invention, the rounding goes into a lower part at least approximately straight section which runs parallel to the apex section.

The solution in which the spiral groove is multi-threaded is advantageous.

Kammer good result be reached by a solution in which the ratio of the length of the crown portion is the distance between the adjacent teeth in the range ▼ on ι 1 10 and 1 t 15 °.

According to the invention, it is also advantageous if the apex

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of the tooth is angled twice and the 7 / inch blunt are"

To facilitate the changeover of the machine to different Varieties of the fibers to be processed, it is advantageous to have the roller with the teeth mounted on a on the drive shaft To be arranged interchangeably support body, the support body being provided with at least two radial openings is, in which there are springs and safety balls engaging in a recess in the inner circumference of the toothed roller, or wherein the support body is provided with at least two radial openings with balls, which through Screws with a conical end are pressed into a recess in the inner circumference of the Y / alze.

The essence of the invention is schematigch with reference to in the drawing illustrated embodiments explained in more detail. Show it

Fig. 1 is an oblique view of the combing roller in the combing device - in partial cut}

Fig. 2 is a view of another embodiment of the combing roller in Radial section}

3 shows a view of a further embodiment of the combing roller In partial cut}

4 shows a view of the side profile of the teeth with the apex angle drawn;

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Fig. 5 is a view of the profile of the spiral groove;

Fig. 6 is a view of another profile of the spiral groove ₍

The combing device consists of the housing 1, in which in the bearing 2, the drive shaft 3 runs, at one end of which the combing roller described in detail later and on the other end of a pulley 5 is seated, which is in engagement with the belt 6. Mowing the surface of the combing roller the feed cylinders 7, 8 for introducing the sliver 9 are rotatably mounted on small shafts. The spear cylinder 7 »8 are on their surface with transverse grooves 11 for better Detection of the band 9 provided. The solution with a feed cylinder and one that is resilient to it is also possible pressed compression funnel and the like. In the housing 1, a channel 12 is also formed, in which the combing roller partially protrudes and which for conveying the dissolved fibers 13 into the known, not illustrated here Unterdruckspinnvorrxchtung serves.

The saw teeth 41 are on the one hand by an on the outer surface the roller 4 applied spiral groove is formed, the profile of which in the apex sections parallel to the axis of rotation X. has continuously passing rounding 411, on the other hand by incisions, which the breast surfaces 413 and the back surfaces 414 of the saw teeth form.

In the embodiment shown in Fig. 6, the rounding goes

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in the lower part in a parallel to the apex section 412 at least approximately straight section 415 over »

The spiral can be switched on thereby or more blockages · Advantageously, a ratio of the length of the crown portion 412 of the tooth 41 i ^initially distance A between the adjacent apexes of the teeth 41 i ^m the range of 1 t 10 and 1 s 15

The incisions are made in such a way that the apex angle B of the teeth 4I formed by them is obtuse.

According to the embodiment according to FIGS. 1 and 2, the roller 4 with the teeth 4I ^{& u} ^ eiern support body 42, which sits on the drive shaft 3, is mounted exchangeably, with at least two radial openings in the support body 42 in the embodiment according to FIG even number opposite - are attached with the balls 422, the latter being pressed into the recess 416 of the inner circumference of the roller 4 by the screws 42J with conical ends, while in the embodiment according to FIG. 2 the springs 424 and securing balls 422 are located, which are pressed by said springs into the recess 4I6 of the inner circumference of the roller 4 with the teeth 41.

The embodiment of Figure 3 consists of one directly on top of the Drive shaft 3 tight pieces.

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The combing device works as follows!

The sliver 9 is presented by the feed cylinder 7 »8 of the combing roller 4, the sawteeth dissolve 4I ai ^e each parsers are 13 and convey, to the channel 12 where they then pass from the spinning device. If it is necessary to process a different fiber material that requires different shapes and spacings of the saw teeth 41, the roller 4 must be exchanged for another, more suitable one, which then - for example in the embodiment according to FIG. 1 - by tightening the screw 423 is attached.

The advantages of the described combing rollers lie in the continuity of the tooth profiles, i.e. the lack of spaces, relatively simple design, its simple manufacture and easy interchangeability.

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BATH

Claims (2)

Patent claims: 'f.) Combing roller for separating the fibers from the. Tape, which in the housing of the combing device on the spiniellose Fine spinning machine is arranged, characterized, that the saw teeth (4I) on the one hand by the. Outer part the roller (4) attached spiral grooves with a Profile, which is continuous in the apex sections (412) has running roundings (41Ό, on the other hand are formed by incisions, which the breast surfaces, (413) and the back surfaces (414) & ^he saw teeth (4I) form « 2. combing roller according to claim 1,
characterized, that the rounding with its lower part in an approximate straight section (415) merges with the apex section (412) of the teeth (4I) runs parallel. J. combing roller according to claim 1,
characterized,
that the spiral groove is multiple. 4 combing roller according to claim 1,
characterized, that the ratio of the length of the apex section (4I2) of the tooth (4I) to the distance (a) between the neighboring Vertices of the teeth (41) in the range from 1 1 10 to 1 1 15 lies. 009837/1843 5 »Sänmnralze according to claim 1, characterized) that the apex angle (ϊ) of the tooth (4I) is greater than 45 °. 6 * Xämnnralze according to claim 1, characterized in that the roller (4) f with the teeth (4i) ^au one connected to the drive shaft (3) carrying body (42) is mounted replaceably · 7 combing roller according to claim 6, characterized in that there are at least two radial openings in the support body (42) (421) are located, which are in the recess (416) of the Engaging the inner circumference of the roller (4) with the teeth (4I) Comprise springs (424) and locking balls (422). Θ. Combing roller according to Claim 6, characterized in that the support body (42) has at least two radial openings is provided, in which the balls (422) sit by screws (423) conical »ends in the recess (4-16) of the inner circumference · The roller · (4) must be pressed. 0090577184 Read more