DD283743A7 - ACCESSORIES FOR MACHINES FOR UNCHANGING STRAND SOUND GOOD - Google Patents

Abstract

The invention relates to a feeder for machines for braiding of stranded Good. Erfindungsgemaesz is rotatably mounted on the front of a plate in the lower left area over a shaft, pivotally mounted a rocker in the horizontal plane, which has a guide roller on the opposite side of the shaft and is in operative connection with a known spring-loaded Stoeszel and on the shaft the rocker on the coil side of the plate an eccentric is arranged, which is about a pivot lever of the band brake and via a spring-loaded Stoeszel with a compression spring which is located in a horizontally disposed Federgehaeuse operatively connected. For a better understanding, Fig. 2 should be consulted. Fig. 2 {feeder; braiding; wires; Base plate; Axis; Kitchen sink; Band brake; Pivoting lever; deflection roller; rocker; Eccentric}

Description

For this 2 pages drawings

Field of application of the invention

The invention relates to a feeder for machines for braiding strand-like material, in particular of wires, for example, for braiding, Umflocht · or rewinding machines, in which the strand-like material is preferably withdrawn in the axial direction of the male coil.

Characteristic of the known state of the art

There are known feeder, as described in DD-PS 88985, in which an arm is arranged, which continuously scans the winding diameter of the coil and thereby controls a force acting on the bobbin functional brake, wherein an adjustable tension spring is arranged as an intermediate member. This arrangement is not to be regarded as a controller, especially as digits.

The position of the force depends on the theoretical coordination of the spring characteristic for changing the diameter of the winding.

A frequently used embodiment has a latching mechanism which controllably locks the coil and releases it to rotate, so that here it is necessary to speak of a stepwise regulation which results in power surges.

Such an embodiment is described in U.S. Patent 3,425,315.

In a further feeder according to DD-PS114430, the control of the strand tension by two mutually coupled torsion springs, wherein the actual brake spring encloses a fixed and a rotatable cylindrical body arranged one above the other.

If the spring force of the first torsion spring is overcome by a torsion bar, then releases the brake spring and releases the rotatable, connected to the coil cylindrical body. This system requires a high production accuracy of the brake spring, i> rr> to make any replacement without additional adaptation work, without which it could lead to system deviations or non-functioning of the arrangement.

L further disadvantage ses system is that for changing the bobbin removal of the control unit is necessary.

Built up is the thread feeder described in DE-OS 2711439, in which, although the control mechanism is mounted below the coil, it does not have to be dismantled when changing bobbins, but otherwise has the disadvantages described above.

In GB-PS 2213844 a feeding device is described in which a carrier has a base plate on which by means of a vertically arranged column a strand feed spool is rotatably mounted. Radially about the bobbin column are arranged vertically further axes or columns for receiving deflection or guide rollers. The strand coil control takes place here by means of a blocking gear.

The disadvantage of this design is that the tension can not be controlled smoothly.

The aim of the invention makes it possible to provide a feeder for machines for braiding strand-like Qut, which is characterized by a simple, space-saving arrangement of the components, which can be produced with relatively low manufacturing effort and is störunanfälllg in robust operation and in which a faster Bobbin change without removing parts is possible.

Explanation of the essence of the invention

The object of the invention is to develop a feeder in which a uniform, juddering control of the tension

ensured by gentle transitions during the control process and by low force effective braking of the coil is achieved.

The invention is initially bekintterweise assume that a coil receptacle is arranged on a rotatably mounted axis perpendicular to a base plate. wherein the axle is connected to a brake, in particular a band brake, which has a pivoting lever, a further plate is also arranged perpendicular to the base plate parallel to the coil mount, on the side of which a deflection roller runs parallel to its axis.

According to the invention, a shaft is rotatably mounted on the front side of this plate in the lower part of the upper region, a rocker pivotally mounted on the opposite side of the shaft has a deflection roller and is in operative connection with a spring-loaded plunger known per se and on the Shaft of the rocker on the coil side of the plate an eccentric is arranged, which is connected via a pivot lever of the band brake and a spring-loaded plunger with a compression spring, which is located in a horizontally disposed spring housing in operative connection.

According to another feature, the Achue is provided above with a closure consisting of a receptacle in which two semicircular sliders are arranged, wherein there is a compression spring between the sliders.

Further features of the invention are that on the eccentric roller bearings and on the spring housings screws are arranged.

The feeder according to the invention is characterized in particular by a uniform, smooth control of the tension

smooth transitions during the braking of the coil during the control process.

exemplary

The invention will be explained in more detail on an Aueführungsbeisplel

 In the accompanying drawing shows

Fig. 1: A sectional view of the feeder according to the invention

 Fig. 2: A plan view of the feeder according to the invention

 3 shows a side view of the feeder according to the invention.

The feeder according to the invention consists essentially of the following coordinated assemblies:

a) The coil holder

b) The braking device

c) The regulatory mechanism

d) The base plate

Zua)

The bobbin receptacle is composed of the axis 1, the brake disc 2 connected thereto and the closure 3. The brake disc is provided with two drivers 4, which allow a positive connection of the bobbin 5 with the bobbin receptacle. The shutter 3 consists of a receptacle 6, in which two sliders 7 are arranged, which are in the clamping position by a compression spring 8. The end position of the semicircular sliders 7 is ensured by two pins 27.

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The braking device consists essentially of a brake band 9, which is equipped on one side with a loop and on the other side with a threaded pin 10; and a pivot lever 11. Both parts are mounted together on a threaded bolt 12.

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The following components are mounted on a plate 13 arranged parallel to the bobbin holder:

A guide roller 14 and a rocker 15 and a fixed connected to it in the plate 13 via the shaft 28 mounted eccentric 16, which in turn is equipped with a roller bearing 17. The rocker is provided on the eccentric 16 opposite side with a guide roller 18.

Approximately at right angles of 90 ° to the rocker 1S sits a spring housing 19 in which a spring-loaded Stößul 20 and an adjusting screw 21 is mounted.

On the other side of the plate 13, a spring housing 22 and an adjusting screw 21 is also attached, the spring-loaded plunger 23 acts on the pivot lever 11. For strand guidance, an additional deflection roller 24 and a pre-deformation device 25 are mounted.

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The coil holder, the braking device and the Regelmecbanismus are arranged on a common base plate 26. It is suitable for receiving sliding or roller guide Jn, which allow ürahüubringei there to lead on appropriate tracks.

Function of · wire feeder The Drahtzubringer is first occupied by the wound coil 6. This happens in the catfish that the coil 5 is pushed onto the axis 1. The sliders 7 are doing by their Skewed into the receptacle 8. In the end position of the coil 5 slide the two sliders 7, due to the pressure of the Spring 8, back to their initial position and thus prevent falling out of the coil 5. When inserting the coil 6 on the Driver 4 are postponed. The withdrawn strand 30 is first around the deflection roller 14 via the deflection roller 24th

led to the guide roller 18 of the rocker 15 and passed from there via the Vorverformungstiinrichtung 25 to the processing point.

Sense of. DrahUubringers it is u. a. To produce as uniform as possible withdrawal tension of the strand 30. This works in the following way: The mounted in the spring housing 19 spring-loaded plunger 20 acts with one, set by the Stullschraube 21 Compressive force on the rocker 15. If the strand 30 is withdrawn with a corresponding force, then the rocker 15 lifts

and thereby moves the eccentric 16 with the roller bearing 17 to the pivot lever 11, wherein the gap 29 is overcome.

Finally, the pivot lever 11 is moved against the pressure of the spring-loaded plunger 23 and the brake band 9 is released. Now the machine spool 6 rotates and releases wire. The wire withdrawal voltage settles to the set value. The gap 29 can be adjusted in size with the nut on the threaded pin 10. It determines the memory length of the Stranges 30, d. H. the amount of strand that can be deducted before the eccentric 1 β with the rolling bearing 17, the brake band. 9

ventilated.

Claims (4)

1. feeder for machines for braiding of strandförmam Good, especially of wires, for example, for braiding, in which the strand-like material is preferably withdrawn in the axial direction of the male coil having a base plate fixed to the machine, on the vertically via a rotatably mounted shaft a Spulenaufnähme is arranged, wherein the axis with a brake, in particular band brake, which has a pivot lever is connected, parallel to the coil receiving also perpendicular to the base plate another plate is arranged, are fixed to the side with its axis parallel deflection rollers, characterized gekonnzeichnet that on the front side in the lower left portion of the plate (13) rotatably mounted about a shaft (28) rotatably mounted in a horizontal plane, a rocker (15) which on the opposite side of the shaft (28) has a iJmlankrolle (18) and with a known spring loaded ten ram (20) is in vVirkverbindung and on the shaft (28) of the rocker (15) on the coil side of the plate (13) an eccentric (16) is arranged on the «Jen pivot lever (1 ¹ I) of the band brake (9 ) and via a spring-loaded plunger (23) with a compression spring, which is located in a horizontally disposed spring housing (22) is in operative connection. 2. feeder for machines for braiding of stranded material according to claim 1, characterized in that the axis (1) above a closure (3), which consists of a receptacle (6) in which two semi-conical sliders (7) are arranged , wherein between the sliders (7) is a compression spring (8). 3. feeder for machines for braiding of strand-like material according to claim 1-2, characterized in that on the eccentric (16) a roller bearing (17) is arranged. 4. Feeder for machines for braiding of strand-like material according to claims 1-3, characterized in that on the spring housings (19) and spring housings (22) each have a set screw (21) is arranged.