DE1922566A1 - Process for pot spinning and the associated spin pot - Google Patents

Description

7922566

DIpI.-Ing.

, Rudolf Busselmeier

Patent attorney. Augsburg, May 2, 1969 Augsburg3 ■ Rehlingenstrasseβ Priority: Great Britain

Po.tf.di 242 j _{M ± 1968}

Manehtn Nr.r «JJf ^ ^ * _Q 537/68

5330/03 Gr / Em '(expiry of the priority period

May 2nd, since May 1st is a public holiday)

Patent application

Wool Industries Research Association, Headingley Lane, Leeds 6, Yorkshire, UK

"Pot spinning procedures and related

Spinning pot "

The invention relates to a method for pot spinning, in particular a method for pot spinning, the threads being carried by an air stream on the surface a cylindrical body of revolution are set down or put down and rotated or are twisted by pulling them off along the axis of rotation.

B @ T in © pfspinnen the type mentioned above have in ^ ractice certain ^difficulties shown. These difficulties may still increase due to the presence of certain materials in the comparable ■ WQnÜQt & n fiber; These © materials could be described as impurities in general and for the sake of simplicity »the fabric urafassem köraaen, % 7 ± © dust, silk £" atip®nei © 2 * Ibaw »Saisesataile like Saraenkapselja, burdock, trash (G®strüpp-wmd i / urzolwerktoila), material component 0 for the Ofesrflacisenbelsamdlung Ibs ^ s equipment,

^ g Oil ~ ₀ HarsIb) Qfltand4®il © and seSsr feuarao Faserst, the starting material present »© in Mönnen or which

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¹ BATH

5330/03 Gr / Em - 2 - May 2, 1969

may form during a previous preliminary treatment, e.g. in the plastering machine. The presence its impurities has led to the following difficulties or disadvantages, for example:

a) clogging the air holes in the spinning pot,

b) Reduction of the effective diameter of the pot due to the accumulation of impurities on the surface of the pot,

c) The emergence of conditions that create an uneven or unbalanced condition the current workflow, as a result of irregular accumulation of Contamination on the surface of the rotating pot (spin pot),

d) uncontrolled distribution of accumulations a of contamination from the rotating pot, which slows down and sticks the pot can lead.

«
These conditions lead to malfunctions or

Interruptions of the spinning process or when restarting the spinning machine - if the has not been carefully cleaned beforehand.

The object of the invention is to. di ©

mentioned difficulties or disadvantages zn ' avoidl®K

Di © invention solves these Aufgab® boi ® ± nem of the aforementioned type characterized ₉ that it derTopf na @ r © in the plurality of holes "v-it \ © see sa, di © are executed extended ia ® ± zed to asdLalem. R ± ijh ~.

laid © n_F_ad en /

it®pfs ^/ T5 " ⁼ W © ^

uor @ ^ SBB to uqf Otearfläsls © dos

und Qaerachnittsfläer-ssii & n £ t? oi.s®n ₉ that si® · Qäao fetleerunga- baw _o Saugwirfor- amsiäb © ia ₈ wsleiio di © YQTumr® ± m ± went to the passage #argia di © L @ © her ■ ^ ros'asi = let j mlmdeetmnm but © in excess raseh ^ cj Äasanüsa © lm

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avoids such contamination on the surface of the spin pot.

The holes can be in the area from the inner to the outer surface of the spinning pot or the spinning pot wall constant or outwardly increasing or decreasing diameter and can (with their axial direction) parallel to or according to the drag angle or withdrawal angle to the normal to the Surface of the spin pot be inclined. The primary purpose of such an increase in cross section and / or Arrangement of the holes under a peel angle, consists of | therein, the removal or suction of the impurities to facilitate from inside the pot, while at the same time preventing the accumulation of impurities in a different way than should be prevented or reduced on the outside of the pot.

There can also be one or more deflection or deflection parts for diverting the impurities leaving the holes from the working parts of the device or to a collection point, whereby'die.Abenkenteile with the Pot connected or can be arranged from the pot. According to a further proposal of the invention, a A scraper or scraper device should be provided (

which cooperates with the outer surface of the spinning pot, to keep any accumulation of contaminants away from it.

Furthermore, the invention proposes that the holes consist of openings in the wall of the pot or, on the other hand, that the pot consists of two parts which are connected via a net-like part or a slot-web part in which the openings are defined are, or that the entire spinning pot consists of a cage-like construction.

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Finally, the wall of the pot can according to a

ii 1 »

be formed spurious further proposal of the invention, in such a way that it _t is provided as an insert for the pot, a space between the false wall and an outer pot wall wobei- formed for collecting the impurities. With such a construction, the collected contaminants can be easily removed.
Wall.

can be removed by first removing the spurious

Further details and features of the invention are the following description, claims and to be taken from the drawing; some embodiments of the invention are shown in the drawing; show in detail:

Fig. 1 is a view of a first embodiment of the spin pot,

Fig. 2 is a view of a second embodiment of the spinning pot,

Fig. 3 is a view of a third embodiment of the spinning pot,

Fig. K, 5t 6 and 7 each partially with horizontal sections through a spinning pot. different designs of the holes, **

Fig. 8 is a vertical cross section through a spinning head with a deflector.

Fig. 1 shows a device for pot spinning mmaammi a first Ausführungsforra (also called centrifugal spinning), which comprises a to rotate formed with high Geschwindigkeit'geeignet pot in which the fibers or threads inserted 'and exposed to a stream of air to deposit (and optionally . Further solidification) on the inner surface of the

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Pot from where they are then | if necessary a- \ withdrawn axially while twisting.

The shape of the inner surface of the pot corresponds essentially to its outer surface. That part of the pot on the surface of which the fibers are deposited protrudes outwards in a V-shape formed with the fibers being fed into the interior of the tip of the V. In this V-shaped part are a large number of holes 11 are provided which extend across the tip, i.e. the peripheral edge interrupt the outward pointing tip of the V-shaped part, and their centers on this Circumferential edge or lie in the tip. The holes or perforations are elongated in the axial direction of the pot and their width is approximately 0.8 mm (I / 32 inches) and their length is approximately 10 mm (3/8 inches) and the ridges formed between the holes are approximately 0.8 mm (1/32 inch) wide. The maximum outside diameter of the spin pot is about 6.4 cm (2 1/2 inches) and the V-portion is about 19 mm (3A inches) long.

included
In operation it is / expected that at least the

A larger part of all impurities present in the spinning mass or in the supplied material will continue to penetrate through the holes at least for extended periods, so that there is no or no rapid build-up of impurities either on the inner surface of the pot or on the Seitan the holes coming, and thus no necessary undesirable frequent interruptions of the spinning operation to clean the pot, or repeated difficulty restarting after stopping the d @ m SpinnprosQsses _t könsaene perform to advance comprehensive Rei ™ niguaigsarbeitea

- 6

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5330/03 Gr / Em - 6 - May 2, 1969

In Fig. 2 is a second embodiment of the spin pot shown, which has substantially the same overall shape and dimensions like the pot shown in Fig. 1; however, the second embodiment differs from the former thereby, .that two sets of holes 12 and 13 in the V-part of the Pots are provided, the two sets each being arranged at the same distance from the circumferential edge of the V-tip are.

The operation of the pot and the effect of the two sets of holes are essentially the same as that Pot, which is shown in Fig. 1.

In Fig. 3, a third embodiment of the spin pot is shown, the inner surface essentially coincides with the outer surface lk . The surface on which the fibers or threads gei @ are gt, has the shape of a truncated outwardly directed Vs, that is, _0, the Spitz © of the V is cut off and replaced by a cylindrical surface circumference =, wherein the plurality of the threads on the cylindrical Surface are performed. The cylindrical circumferential surface is provided with a large number of elongated openings or holes 15, the longitudinal axis of which extends parallel to the axis of rotation of the pot

The holes I5 can be in the wall of the pot te processing of the same are introduced or Assemble the pot from two conical stump scarfs

Can the facing larger OffniasigskantSHt) then by means of a slotted®s & part IS ₉ which is open as a JL5 _β vms'hunuen "

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Again, the operation of the pot and the Effect of the openings provided therein essentially the same as in the pots shown in Figs.

In the FIGS. 4 to 7 are different cross sections represented by the ridges between the holes, which the holes according to the different pot constructions Define, the webs by suitable processing of the pot or by inserting slot-web parts are formed between two pot shells, as described above.

According to FIG. K , the webs 19 have a circular cross-section.

According to FIG. 5, the webs 20 have a right hexagon cut ^, between which holes 21 are formed, which have a constant cross section along an axis perpendicular to the surface of the pot.

According to Fig. 6, the webs are trapezoidal in shape Cross-section and define holes 23, the cross-sectional area of which goes from the inner to the sweeter surface of the pot or the pot wall increases.

V »'

According to FIG. 7, the webs 2k have a parallelogram-like cross-section and define (between them) holes 25 with a constant cross-section, the holes (hole axes) extending at a pull-off angle to the normal to the surface of the pot, the pot rotating in the direction of the arrow P. .

The web shapes shown in FIGS. 6 and 7 serve to prevent the build-up of impurities in the To prevent or reduce openings and a '

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To facilitate pulling out or sucking out the impurities from the interior of the pot.

The pot shown in Fig. 8 corresponds in its basic construction essentially to the embodiment according to FIG be thrown onto parts of the pot spinning machine if. they leak out of the holes in the pot. ■ '■ /

Of course, the invention is not limited to the embodiments described above, and many variations within the scope of the invention are possible ^v.

For example, an apertured wall can be inserted into a spinning pot so that it forms a fake inner wall which is preferably detachably attached in order to be able to clean the pot. One such suitable "fake wall, which is particularly fold attach and remove can advantageously be made of flexible material and / or from individual Partial parts exist.

produced and / the deflecting part 26 can be used as a separate part.

be connected to the pot, it can be in one piece with the pot, but it can also be arranged independently of the pot · -. and in the case that the pot consists of two parts, the deflecting part can be designed as a roof-like projection of one of the two parts.

Finally, a stripping device can also be provided, which is connected to the outer surface of the pot works together and which serves to remove any accumulation of impurities'.

- 9 - Claims -

909849/0859

Claims (2)

5330/03 Gr / Em - 9 - May 2, 1969 Claims; Spin pot on a pot spinning machine (centrifugal pin machine) with holes spaced from one another over the circumference, thereby marked that next to the or the clear cross-sections serving to insert the threads further clear cross-sections for passing through Impurities are provided from the inside out. 2. Spin pot according to claim 1, characterized in that all or more holes one Spinning pot have a clear cross section that is so much larger than the cross section of the through such Hole entering thread is that through the remaining clear cross-section contamination from the inside step outwards, preferably with cooperation an inward-outward airflow created by the centrifugal force of the spinning pot and / or generated from a particular source. U spinning pot according to claim 1 and / or 2, characterized in that special holes for the thread entry are provided and that in addition, further © special holes for the exit ^ of the impurities are provided. t. Spin pot according to one or more of claims 1 to 3 «characterized in that the holes are clearly elongated, the Direction of the longer extension the * holes to the axis direction of the threads logged on the surface of the pot in the is essentially perpendicular " - 10 - 9098 4 9/0859 5330/03 Gr / Em - 10 - May 2, 1969 1972566 5. spin pot * according to claim 1, characterized that outside of the spinning pot in the area the impurities emerging from the holes are diverted to shield the other machine parts against the impurities is provided. 6. spinning pot according to claim 5 _t, characterized in that the deflection device is attached to the outside of the spinning pot or is integrally connected to this or is arranged independently of this. 7 · Spin pot according to claim 5 and / or 6, characterized in that the deflection device in Kind of one protruding outward from the spinning pot circumference Truncated cone jacket is formed. 8 * spinning pot according to claim 1, characterized in that g e k e η η that a wiper cooperating with the outer surface of the spinning pot for removal of impurities is provided. 9. Spin pot according to claim 1, characterized in that the holes have a cross-section that increases or decreases or remains constant from the inner surface to the outer surface of the pot wall. 10. spin pot according to claim i, characterized in that the hole axes around a Schleppbzw. Peel angle opposite to the normal direction Pot surface are inclined o 11, spinning pot according to claim I _9, characterized in that g β Is it η η «. the Locfea- ^ Sasesi run parallel-am * paint on the surface of the pot. - 11 909849 / Q.8 59 BATH 5330/03 Gr / Em - 11 - May 2, 1969 Ι \ J Λ— £ - \ J W \ J 12. Spin pot according to one or more of the preceding Claims, characterized in that the holes are subsequently worked into the pot wall are made. 13 · Spin pot, according to one or more of the preceding Claims, characterized in that it consists essentially of two echelike parts, at their mutually facing edges by means of an intermediate piece defining the holes are connected. · l4. Spin pot according to one or more of the preceding Claims, characterized in that - the surface area on which the threads are applied has the shape of a pointed-out V or a truncated V, both of which The shape of the dumbbell line of the rotating body forming the spinning pot corresponds. 15 · Spin pot according to one or more of the preceding claims, characterized in that. it consists of a closed rotary envelope, inside of which a wall insert having the holes is arranged at a distance from the outer shell. 16. Spin pot according to claim 15, characterized in that the wall insert is detachable inside is attached. . 17 · Spin pot according to claims 15 and / or 16, thereby characterized in that the wall insert consists of flexible material and / or in individual parts is formed divided. - 12 - 90984 9/0859 5330/03 Gr / Em - 12 - May 2, 1969 18. Spin pot according to one or more of the preceding Claims, characterized in that the hole cross-section has a length of approx. 10 mm and a width of approx. 0.8 mm. 19 · Spin pot according to one or more of the preceding Claims, characterized in that ' the holes are arranged at intervals of approx. 0.8 mm on the circumference, i.e. 0.8 mm wide webs between two consecutive holes are formed. 20. Spin pot according to one or more of the preceding claims, characterized in that its maximum outside diameter is approx. 6.4 cm and that the length or the height of the V-part approx. 19 mm amounts to. 21. A method for removing contaminants from the interior of a spinning pot of a pot spinning machine, wherein, the threads are inserted through a number of holes in the pot wall into the interior of the pot, characterized in that the together with the threads Impurities that have penetrated into the interior of the spinning pot through further or opposite the thread cross-section in a direction transverse to the laid thread holes widened as a result of the centrifugal force and / or the drag force an air flow emerging from the inside of the pot be expelled. 909849/0859 -43: Blank page