DE1906937A1 - Thread brake with tension compensation - Google Patents

Description

DIPL-ING. FI. J. INGRISH

Patent attorney Wuppertal-Elberfeld, February 11, 1969

WUPPERTAL-ELBERFELD 1 2 / ma

WALL 27/29 TEL 445096

Patent application
Lawyer File No. 4339

Company Gebr. Meyer, Wuppertal-Barmen

Thread brake with tension compensation

The invention "relates to a thread brake with tension compensation, consisting of a support beam to which a base plate and a rocker are attached, the rocker with two at a distance arranged from each other, is equipped by weight or spring forces adjustable plate packs, through which the thread is diverted. The subject matter of the invention is primarily intended for use with cantilever gates, but can just as well be used, for example find use in winding machines.

The known thread brakes, which serve to increase the thread tension when unwinding the thread from a package or a bobbin, and to keep it as constant as possible, are not free from disadvantages. As a rule, the thread brake and thread tension compensator are known as separate structural units. A so-called plate brake is used as the most widespread thread brake, in which the thread is sucked through two plates pressed against one another. The braking effect results solely from Röi burigskräftors, worn! I dia VetwQadung diyser VadaishremBQ on only '.- ■■;. ^ Jg ^

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Thread types remain limited, for example with certain Types of thread the disc brake causes the turns to be compressed.

Furthermore, a thread brake is known in which the thread around a plurality of friction bodies standing one behind the other, which consist of a wide variety of Materials can exist, is deflected and the thread thus suffers a rope friction, whereby its initial tension is multiplied by a factor. This thread brake can also only be used to a limited extent.

A thread tension compensation is used in the most common construction art achieved by a rocking roller, which is arranged on resilient levers.

The invention has for its object to improve a thread brake with tension compensation, such that it is for the a wide variety of thread types can be used equally well, is easy to manufacture and is less prone to failure.

Starting from a thread brake of the type mentioned at the beginning, this object is achieved according to the invention in that the base plate and the rocker are articulated jointly, but independently of one another, on a pin arranged on the support beam, so that there is an elastic connection between the base plate and the rocker that the base plate through the purpose of changing the Toilyriäük ': · on te bc-j Tham th adjustable Umsehtingungüwinkels

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is hinged to the pin. With these measures, a thread brake and stress compensation combination has been created, which "with a compact, i.e. space-saving design Thread brake made requirements in an optimal way is sufficient.

According to a further feature of the invention, a tension spring is provided as an elastic connection between the base plate and the rocker, whereby a rubber core or the like can also serve as a tension spring. The elastic connection can within the scope of the invention can also be advantageously effected by a permanent magnet. The traction means that the rocker when adjusting the Base plate experiences a change of direction without affecting the mobility of the rocker.

So that changing the wrap angle for the thread passage Base plate can be locked in any locking position, are according to a further feature of the invention on the periphery The base plate, which is essentially designed as a flat disk, has recesses into which a detent spring is incorporated intervenes.

According to the invention, the tension spring is guided in a recess in the base plate and at one end on the periphery of the base plate and attached with its other end to the rocker in the vicinity of the hinge point, including the rocker against the base plate has directed mounting pin.

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In a further embodiment of the invention, on the base plate Markings be arranged, which the locking recesses in relation to the respective angle of application. The markings can consist of numbers, different paint applications or the like. Be formed.

In the following, the subject matter of the invention is based on an exemplary embodiment explained in more detail. Show it:

Pig. 1 is a side view and

Fig. 2 is a plan view of the novel thread brake

The thread brake with tension compensation consists in its fundamental Structure of a support beam 3 to which a base plate 4 and a rocker 5 are attached, the rocker 5 is equipped with two spaced apart sets of plates 6 that can be regulated by weight or spring forces, through which the thread 7 (Fig. 2) is deflected.

The support beam 3 is essentially U-shaped on, in each of the legs 31 »32 an eyelet 31 ', 32' inserted through which the thread 7 is passed. The threaded hole 33 is used to connect the thread brake to a warping gate or the like

The base plate A _f, which is designed as a flat disk, has on its periphery Kaetausnehmungen 41 on ₉ in the one on

Leg 32 of the support beam 3 arranged detent spring 34 engages. This means that the base plate can be locked in any latching position. The locking recesses are on the top of the base plate 4 41 indicated by markings. Although ■ in the illustrated embodiment, the markings off Numbers exist, these can also be formed by different paint applications or otherwise.

A pin 35 is provided on the support beam 3, on which the base plate 4 and the rocker 5 are movably arranged. Between A disk 7 is arranged on the base plate 4 and rocker 5 so that the two bodies can be pivoted independently of one another are.

The rocker 5 carries two vertically arranged pins 51, on each of which a felt washer 61, one of two oppositely directed Plates formed plate pack 5 and a brake weight 62 are attached. Instead of the braked weight 62, a Compression spring can be provided. The discs of the plate packs 6 are made of porcelain, hard chrome-plated metal or sintered corundum.

In the position shown in Fig. 2, the slightest braking of the continuous thread 7 given. The thread is subjected to a multiple change of direction through the plate packs 6, which in connection with the frictional forces of the cup washers for adequate braking or keeping the thread tension constant

ÜÜ9838 / 087B

care. Tension fluctuations in the thread 7 are compensated for by the movable arrangement of the rocker 5. To this end the rocker is hinged on a ball bearing 36 and through a Traction means 8 connected to the base plate.

Base plate 4 has a truncated cone-shaped recess 42 on, in which the traction means, designed here as a tension spring 8, is guided. The latter is on the periphery or on that of the periphery facing recess side and attached to a pin 37 of the rocker 5 directed towards the base plate 4.

By adjusting the base plate 4 in one of the respective locking positions, the rocker 5 is taken as a result of the spring articulation, so that the wrap angle is according to the Adjustment of the base plate changes. The traction means 8 makes it possible to achieve a compensation of the thread tension by the When the thread tension is high, the rocker moves against the force of the spring in the direction of the thread running direction or, when the tension is low, transversely to the thread running direction adjusted. The output voltage of the thread 7 required in each case can, as I said, by more or less big change of direction caused by the individual locking positions the base plate 4 is adjustable, can be regulated.

The drawing also shows an angle plate 9, which is on Support beam 3 is attached. The vertical leg 9 'has an eyelet 32 "through which the thread 7 is guided. In the space between leg 32 of the support beam 3 and the leg 9 'of the

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Angle plate 9, a thread monitor can be arranged, which switches off the associated machine "if the thread breaks.

Claims ;

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Claims (1)

DIPL-ING. H. J. INGRISCH PATENT ADVOCATE
WUPPERTAL-ELBERFELD Q "WALL 27/29 TEL 445096 Expectations 1.jThread brake with tension compensation, consisting of a support beam, on which a base plate and a rocker "are attached, the rocker with two spaced apart, is equipped with adjustable plate packs by weight or spring forces, through which the thread is deflected is, characterized in that the base plate (4) and the rocker (5) together, however are articulated independently of one another on a pin (35) arranged on the support beam (3), that between the base plate (4) and rocker (5) there is an elastic connection and that the base plate (4) for the purpose of changing the through the plate packs (6) is articulated adjustable to a certain wrap angle on the pin (35). .I net 2 "Thread brake according to claim 1, characterized marked z e in that a tension spring (8) is arranged as an aromatic compound pushed between the base plate (4) and rocker (5). / -, FfH-nVre: =. se iri'- ^: ö ^ .j · / inpprüt hen 1 and 2, thereby ff;: ^f ; ■ η ν. ' ' ■ Ii ii ( ^; t, da. ', ⁵ the base plate (4) im j ν nf3r -; "i t ';. i <: ί, \ - <' ■ ';·> ύι <> Λ ^ \, <\ <c formed on ii? t, on dei'en V ( ? i ] ■■ r · '· i'V,> ■ _- ■ ; · .. »■ - ■■ · ι A i; fj t: ₍ r- r = r * l · t: i tet, in which one . (HI 7 fi 19116937 • J 4. thread brake according to claims 1-3, characterized that the base plate (4) has a recess (42) in which the tension spring (8) for the rocker (5) is guided, the spring (8) at one end on the periphery of the base plate (4) and at its other end on the Rocker (5) is attached near the hinge point, wherein the rocker (5) has a fastening pin directed against the base plate (4) (37). 5. Thread brake according to claim 1, characterized in that the mobility of the rocker (5) through a permanent magnet is controllable. 6. Thread brake according to claims 1-5, characterized in that the on the circumference of the base plate (4) provided locking recesses (41) for adjustment the various angles of contact have markings. 009838/0878 Blank page