DE1941251U - DOUBLE WIRE TWISTED SPINDLE. - Google Patents

Description

.2b8 «31 * 1 /. 5.6

PATENTANWÄLTE 8902 augsburg-goggingen, May 12th, 1966

ν. EichendorfF-Strasse 10 DR. ING. E. LIEBAU Our mark Dr. Lb / r AZ 6 k ¥> Q?

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ALLMA

Allgäuer Maschinenbau GmbH.

896 K em ρ t e η / Allgäu

KintveEs sCStese Unfertegs {Description us! SchwtzansRr.) Isf as an ingredient. differs from the original version of the original documents. The legal assessment of the deviation is not checked. The originally original documents are in the amfsakfen. Sis fcörmen anytime okrm Nacliwois efneh rech: fc- ^; ': cm of interest can be viewed free of charge. Upon request, copies of ocisr, fihnnegatives will be delivered to you at the usual prices. German Patent Office, Nutzj-Tiusiarsic ^ fg,

Two-for-one twisting spindle

The innovation relates to a two-for-one twisting spindle with a spool pot with several openings in its pot shell and a balloon limiting cylinder surrounding the pot shell, the has several suction openings on its inner wall ^ which in an the outside of the balloon limiting cylinder arranged on a Suction channels open to the suction source.

In this known double-wire twisting spindle, the suction openings are arranged one above the other in a line in the axial direction. As a result, the suction of fluff can only be carried out at this point and not over the entire circumference of the balloon limiting cylinder. In order for this facility to work at all, the Balloon limiting cylinder be almost completely closed at its top and bottom. Only in this way can a kind of inevitable Air guidance can be achieved, which is directed towards the suction point. However, since the lid except for its passage opening for the already twisted thread has no further opening, no suction should take place in the upper area of the twisting spindle. It is

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sfon 33795 Telegr.-Adr.i ELPATENT Postscheckkonto Munich 86510 Deutsche Bank Augsburg Account 83419M

there is therefore a risk that at these points, especially at the Paragraph, which between the balloon limitation cylinder and the lid is formed, constitutes fiber flight, which then after some time with in the thread is twisted and leads to false twists. In addition, the cover should make the production of the two-for-one twisting spindle more expensive and also complicate their handling, since each time a new bobbin is inserted, this cover must be removed. If you can see the lid, however not before, so the intended one, passing through the opening in the bottom of the balloon limiting cylinder and directed upwards Do not adjust the air flow as the opening in the bottom of the balloon restriction cylinder is relatively small and as one Kind of throttle point works. The suction through a number of laterally arranged suction openings is also completely inadequate, namely because through the rotating foot one directed from bottom to top Adjusts air flow. Fiber flight in the upper part of the balloon limiting cylinder on the one facing away from the suction openings Page is created, is therefore not vacuumed under any circumstances. It must inevitably accumulate in the lid, since this apart from the narrow one Passage opening for the thread no longer has any further opening. Furthermore, the known device has the disadvantage that below the cheese can collect fluff between the same and the bottom of the pot, since there is no suction at this point. the through the bottom hole of the b-tllon limit cylirri. ers incoming air namely flows in the annular gap between the pot and the balloon limiting cylinder without touching the bottom of the pot. There are also two-for-one twisting spindles known in which the Fiber fly suction through a few on the lid. connected

Suction pipe takes place. They are relatively expensive to manufacture and awkward to use. The additional cover must namely be provided. Each time a new bobbin is inserted or This cover must also be removed in the event of a thread breakage and a connection between the cover and the suction duct or the suction channel and the collecting channel. Then you have to proceed in the opposite way and this connection again manufactured., as well as the lid placed on the balloon limiting cylinder will.

The deficiencies of the facilities for fiber fly elimination provided in the above-mentioned two-for-one twisting spindles are alleviated a two-for-one twisting spindle of the type mentioned at the beginning several rings are arranged evenly distributed over the entire circumference of the balloon limiting cylinder, such a ring of suction openings in the lower part of the balloon limitation cylinder is arranged at the level of the bobbin case base. Through the suction openings distributed over the entire circumference of the balloon limitation cylinder an effective elimination of the fiber fly is achieved. The suction openings are as possible in this way brought close to the points of origin of fiber fly., so that even with a gsingen., air flow generated by negative pressure this fiber fly is eliminated immediately. The arrangement of a ring of suction openings in the lower part is particularly important here Part of the balloon recovery cylinder approximately at the level of the spool pot

soil. The fly of fibers that occurs when the thread is pulled off the cheese would only be carried along by a very strong air flow. In the case of the two-for-one twisting spindle according to the invention, on the other hand, it first falls downwards and thus comes into the area of action of the lower suction openings, so that it is constantly removed from the base of the bobbin pot. Fiber fly, on the other hand, which arises in the uppermost area of the bobbin, is torn upwards by the air flow generated in the balloon limiting cylinder by the rotating thread and either exits the balloon limiting cylinder here, or it is advantageously immediately through suction openings arranged on the upper edge of the balloon limiting cylinder removed so that it cannot stick to other machine parts.

Further advantages, as well as details of the innovation, are based on a In the drawing illustrated embodiment explained in more detail.

Show it

Fig. 1 a vertical longitudinal section through the new two-for-one twisting spindle,

Fig. 2 shows a cross section along the line II-II of Fig. 1 through the Balloon constraint cylinder alone.

In the drawing, 1 denotes the bobbin pot, which consists of a substantially cylindrical pot shell 1a and the pot base 3 consists. The pot shell 1a has several openings 2 on its circumference, the lower edges of which in the embodiment shown

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management example lie in the plane of the pot bottom 3. The spool pot 1 is surrounded in a manner known per se by a stationary balloon meeting cylinder 5. According to the innovation, this balloon delimitation cylinder has on its inner wall 5 and several suction openings 4 distributed around the circumference. These suction openings open into the suction channels 6 or 6a, which are provided on the outside of the balloon delimiting cylinder 5. Each of the suction channels 6 and 6a has a connection piece 9 and 9 _a, with which it is angescltesen to a suction source.

In the embodiment shown, there is a first row of suction openings 4 arranged in the lower part of the balloon delimiting cylinder 5 at the height of the bobbin pot base 3. A second set of Suction opening 4a is provided at the upper end of the balloon limiting cylinder. These suction openings 4 and 4a open into corresponding ones Suction channels 6 and 6a.

A suction speed as uniform as possible at all suction openings 4 and 4a to achieve., Each suction channel 6 and 6a as shown in Fig.2, that is, ^a or 9 extended to its exit end to the connecting piece 9 down in cross-section.

As can also be seen from the drawing, the bobbin pot 1 or the bottom 3 of which is rotatably mounted on the storage disk 7 of the rotating spindle 11 by means of a ball bearing 10. The bobbin case becomes 1 through the magnet 12 in the bottom of the pot 3 and the one in the balloon limiting cylinder 5 provided counter magnets 13 held,

so that only the spindle 11 rotates and that indicated at 14 Thread brake., With which the thread from the stationary bobbin the lifting thread guides 16 and 17 revolve.

In order to increase the effect of the suction openings 4, the storage disk Air ducts 8 on. The air ducts 8 are while inclined radially outward from its entry end 8a to its exit end 8b. This arrangement achieves that as a result from centrifugal force an air flow directed upwards in the direction of the arrow is produced. The pot bottom 3 is with passage openings provided, through which the air flow generated on the storage disk 7 can enter the interior of the bobbin case 1. This air flow supports the effect of the suction openings 4 and pushes the fluff of fibers on the bottom of the pot outwards. As a result, you can use a relatively low suction power per spindle work. In order to generate an overpressure at the passage openings 18, the storage disk could optionally also be designed as a fan wheel. With this measure it is also possible., to keep the suction power per spindle low.

As already mentioned above, the lower edges of the openings 2 of the pot shell 1a lie in the plane of the pot bottom J>. Fibers that accumulate on the bottom of the pot 3 can thus emerge unhindered radially outward through the perforations without getting stuck on protruding edges.

Claims (6)

! A.258B9M7.S.B6 Protection claims . Two-for-one twisting spindle a plurality of perforations having bobbin pot and which surrounds the pot casing balloon limiting cylinder having on its inner wall a plurality of suction openings ,, open with one in its pot casing which is arranged in on the outside of the balloon limiter cylinder, connected to a suction source exhaust ducts, characterized gekennzeichne t, that the Suction openings (4,4a) are evenly distributed in one or more rings around the entire circumference of the balloon delimitation cylinder (5), such a ring of suction openings (4) in the lower part of the balloon delimitation cylinder (1) at the level of the spool pot base (j5) is arranged. 2. Two-for-one twisting spindle according to claim 1, characterized in that that in addition to the ring of suction openings (4) in the lower part of the balloon limiting cylinder (1) a second such Ring of suction openings (4a) is arranged in the vicinity of the upper edge of the balloon limiting cylinder. 5 'double-twisting spindle according to Claim λ, characterized gekennzei ch ~ η et that each suction channel is expanded (6 bzw.6a) to its outlet end (9 and 9 ^a) in cross-section so that at all suction openings (4 and 4a ) of the same channel is approximately the same suction speed. 4. Two-for-one twisting spindle according to claim λ, characterized geke η η ζ ei chne t, that the known per se, under the bobbin case base (3>) rotatably arranged storage disk (7) has air supply channels (8) and the bobbin case base (3) with passage openings (18 ) is provided., wherein the air supply channels (8) are inclined radially outward from their inlet (8a) to their outlet end (8b). 5 · two-for-one twisting spindle according to claim 4, characterized in that the storage disk (7) is known per se Way is designed as a fan wheel and at the passage openings (18) of the bobbin case bottom (j5) generates an overpressure. 6. Two-for-one twisting spindle according to claim Λ, characterized in that the bobbin pot base (3>) is flat in a manner known per se and the lower edges of the openings (2) are arranged in the plane of the pot base.