DE2259602A1 - METHOD AND DEVICE FOR ADJUSTING TEXTILE ALIGNMENT MACHINES - Google Patents

Description

Drying. Wooden houses
Dipi.-Met. Goldbach

Patent attorneys
OFFENBACH AM MAIN
Herrnstrasse 37 - Tel. 88 56 42

Heberlein & Co. AG .. CH-9630 Wattwil - Switzerland

Method and device for setting textile alignment machines

The invention relates to a method and a device for changing the straightening roller setting in textile straightening machines with flexible straightening rollers mounted on both sides.

Textile webs (woven or knitted webs) are in the course their passage through production often warped, whereby the originally orthogonal structure of the weft and warp or the rows of stitches changed obliquely or in a curve will. To restore the original condition, the railways are routed via tissue reporting devices, the roller arrangements lying at an angle or in an arc to the direction of travel of the web restrain the distortions balance.

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Devices of this type are very common in the finishing industry. Various arrangements are known with which the desired goal of a perfect alignment can only be achieved with restrictions. Disadvantages of the known devices are, in particular, the great mechanical effort involved in adjusting the bow rollers as well as the fact that irregular distortions only differ with the series connection of a large number deflecting bow and skew rollers can be aligned.

The invention is based on the object of avoiding the disadvantages of the known, in particular a device to adjust the directional effect of such alignment machines, which when using a known per se flexible straightening roll is able to align any distortions in a structurally simple way.

According to the invention, this object is primarily achieved in that the straightening rollers are acted upon at least on one side in their end area with a torque acting perpendicular to the textile webs running over them, and / or that the straightening rolls are linearly displaced at least on one side in the plane perpendicular to the textile webs running over them _f and / or that the straightening rollers at least at one point between the bearing points

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be supported.

Obviously, by applying torque to the straightening rollers and superimposed linear movement achieve any curve shape of the straightening roller. Advantageously, in addition to or instead of the Applying torque the bending of the straightening rolls can be achieved by support bearings. Both deflection by raising or lowering the support bearings as well as alternatively or simultaneously by linear displacement of the Main bearing can be achieved. The method according to the invention can advantageously be carried out if the bearings each on a swivel device which can be rotated perpendicular to the running textile webs during the straightening process are and / or that the bearings or the pivoting device are each at one in the plane of the pivoting movement linearly displaceable support are attached. The drive of the swivel device and / or the support is thereby advantageously by a stepper motor or by hydraulic Actuators as a function of the distortions of the running textile webs measured by known sensors executed. If the support bearings and the main bearings are linearly adjustable, the drive device for the swivel device can be used omitted.

A straightening roller can advantageously be used here, which on a flexible axis

3 09828/0700 ORIGINAL INSPECTED

has attached flexible jacket store, wherein a drive device for the jacket can be provided. Obviously, according to the invention, the alignment of the textile webs can easily be done with one or two Straightening rolls accomplish, since each of the straightening rolls has both oblique and curved distortions or superimposed distortions is able to align.

The inventive content and technical progress the subject of the application is overall both through the new individual features and in particular through combination and sub-combination of all features that are used.

The invention is explained in more detail below in an exemplary embodiment with reference to the drawings.

Show it:

1 shows a schematic representation of an alignment device,

Fig. 2 shows the representation of an actuator for a straightening roll with the features of the invention,

3 shows a straightening roll with support bearing on a reduced scale,

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4 shows a straightening roll with several support bearings,

5 shows a schematic representation of various according to the invention achievable straightening roll shapes,

6 shows the representation of a flexible straightening roller in section.

According to Figure 1, textile web 2 is guided past sensors 1, which determine the distortions in a known manner and about Actuator 4 initiate the adjustment of straightening roller 3. The textile web 2 is supplied and removed via deflection rollers 5, which also compensate for voltage fluctuations.

FIG. 2 shows the actuator 4 for the position of the straightening roller 3 on a larger scale. To initiate a torque in the end areas of the straightening roller axis 6 is included an axially displaceable bearing 7 is provided, which via lever arm 8, rack 9 and gear 10 around the fulcrum 11 is pivotable. Gear 10 is driven by a stepper motor, which depends on the degree and direction of control causes axis 6 to bend. Stepper motor and rod 13 are linear on the housing of the actuator 4 slidably arranged and are raised or lowered by rack 14, gear 15 and stepper motor 16, so that at the same time to exercise a torque means

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Stepper motor 12 linear displacement of the bearing 7 or the straightening roller axis 6 by stepper motor 16 is possible. A Another actuator 4 is provided in the same way for the deflection of bearing 7b, but for the sake of simplicity only " indicated.

FIG. 3 shows straightening roll 3, the deflection of which is determined both by actuators 4 and by support bearings 17, which can be raised and lowered linearly. Actuators 4 are both for raising and lowering the bearing 7 as also intended for the application of torques.

In contrast, the actuators 4 according to FIG. 4 are only provided for raising or lowering the bearings 7. the The deflection of the straightening roller3 is caused by different things Raising or lowering of all bearings, i.e. the bearings 7 and the support bearings 17a, 17b and 17c, in a simple manner Way achieved.

FIG. 5 shows a selection of the adjustment options Straightening roller 3 by differently controlling the actuators 4 and / or the support bearings 17.

FIG. 6 shows schematically the structure of the straightening roller 3, which has a flexible jacket 18 which is attached via spacers 19 is attached to the flexible shaft 20.

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As can be seen, the invention enables any straightening roll setting, the straightening roll being adjustable both in a straight line at an angle and in any desired curvature. Depending on the application, the actuators 4 can either only be provided for linear adjustment and the support bearings 17 for roll deflection, or in combination with actuators 4, torque is exerted on the straightening roll 3 and multiple deflections can be achieved at the same time using support bearings 17. If multiple deflections are not required, support bearings 17 can also be dispensed with.

The drive device in actuator 4 can - as shown - be stepper motors, which are controlled by sensors 1 can be controlled. In the same way, however, pneumatic or hydraulic drive devices can also be provided which may also be used to control the support bearings 17.

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Claims (10)

Expectations : Procedure for changing the straightening roller egg position in Textile straightening machines with flexible straightening rollers mounted on both sides, characterized in that the Straightening rollers at least on one side in their end area with a perpendicular to the textile webs running over them Torque are applied, and / or that the straightening rollers at least on one side in the perpendicular to the overlying textile webs lying plane are linearly displaced, and / or that the straightening rollers at least be supported at a point between the bearings. 2. The method according to claim 1, characterized in that opposing torques act on the end regions of a straightening roller be exercised. 3. The method according to claim 1, characterized in that the straightening rollers against each other between the bearing points the preload introduced in the end areas by torque or linear displacement are deflected. 4. Apparatus for performing the method according to claim 1 for aligning running warped textile webs with flexible ones arranged in a bearing on both sides 309828/0700 - * - 2253602 Straightening rolls (3), characterized in that the bearings (7) are each perpendicular to one another during the straightening process pivoting devices (8 - 11) that can be rotated relative to the running textile webs are arranged and / or that the bearings or each of the pivoting devices is attached to a support (13) which is linearly displaceable in the plane of the pivoting movement are. 5. Apparatus according to claim 4, characterized in that at least one swivel device (8 - 11) a motor (12) for automatic adjustment of the straightening roller _ bends during operation. 6. Apparatus according to claim 4, characterized in that each straightening roll with at least one support bearing (17) is provided between the bearings. 7. Apparatus according to claim 6, characterized in that the support bearings (17) each have one parallel to the bearings have running linear motor. 8. Apparatus according to claim 4 or one of the claims 5 to 7, characterized in that the straightening roller (3) each has a flexible axis (20) on which a flexible, continuous Sheath (18) is rotatably arranged. 309828/070 0 9. Apparatus according to claim 8, characterized in that the axis (20) consists of glass fiber reinforced plastic . 10. Apparatus according to claim 8, characterized in that the axle (20) and / or the jacket (18) has a drive device. ORIGINAL INSPECTED 309828/0700