DE3122569A1 - ROLLER PAIR FOR THE EVEN DRAINAGE OF FOULARD - Google Patents

Description

HUBERT BAUER PATENT ADVERTISER

H. BAUER PAT.-ANW. . LOTHRINGER STRASSB 08 / ECKB WILHELMSTRASSE. D-OlOO AACHKN

German Patent Office Zweibrückenstr. 12th

8000 Munich 2

TELEPHONE (Ο241) BO 43 BO TELEORAMMEi FATBNTBAUBR AACHBN

POSTSCHKCK COLOGNE 231883 OO8 (BLZ 37010000)

DBUTSCHB BANK AO. AACHBN 3008631 (BLZ 88070030)

YOUR CHARACTER YOUR MESSAGE MBINB ZBICHBN

B / KB (530) D.

AACHEN June 4th 1981

Patent application

Note: Company H. Krantz GmbH & Co., Krantzstr. o. no, 5100 Aachen

Designation: pair of rollers for uniform dewatering of foulard

Pair of rollers for uniform dewatering of foulard

The invention relates to a pair of rollers for uniform dewatering von Foulard with a rigid roller and a roller that can be changed in position to change the roller gap.

To dewater foulard fabrics, this is moved through a pair of rollers, the rollers of which are pressed onto one another. However, it has been found that in this case the aufeinanderge be - pressed rollers deflect differently, a satisfactory uniform drainage of the fabric so that can not be achieved.

The problem of undesirable deflection of such rolls is well known in the art. Attempts are also known to eliminate this deflection or to control its course, as taken from DE-OS 2 222 256 or DE-AS 27 25 573, for example can be. However, these efforts are associated with an undesirably large structural effort.

The invention is based on the object of a pair of rollers of the initially to propose the type described, with which, despite the deflection of the individual rollers, uniform drainage of padder fabrics can be reached.

According to the invention, this object is achieved in the case of a pair of rollers described type solved in that the variable position mounted roller with its ends each in a first end of a two-sided lever is mounted with a fixed or fixable pivot point and that the rigidly mounted roller has axle ends protruding beyond the mounting and that between a protruding axle end and the second end of a bilateral lever associated therewith a power-operated lever Spreading device is arranged, the lever ratios of the bilateral levers and the protruding axle ends are chosen so that During the pressing of the rollers, the same bending line appears on both rollers. So there is no attempt to prevent the deflection on the contrary, the elastic behavior of the rollers is used to ensure equal and parallel deflection to force both rollers, creating across the entire width

a uniform roll gap is achieved.

According to one embodiment of the invention it is proposed that the power-operated spreader is designed as a fluid cylinder. This is an especially easy remedy for the second end of one to spread two-sided lever and the axis end of the rigidly arranged roller assigned to this and thereby for the desired To ensure pressure of the rollers.

The invention will now be explained in more detail using an exemplary embodiment.
Show it

Figure 1: pair of rollers in the open state Figure 2 i pair of rollers according to Figure 1 in the working position

In a roll stand, not shown in detail, is in the bearings. 11 and 12, a roller 10 is mounted rigidly and rotatably. In the said Roll stands 25 and 26 are also arranged in which bilateral levers 6 and 7 are pivotably mounted about the pivot points 8 and 9, respectively are. The first ends 4 and 5 of these bilateral levers 6 and have a cardanic bearing, not shown in detail, in which the roller ends 2 and 3 of the variable position roller 1 are mounted.

The rigid roller 10 has over the bearing 11 or 12 protruding Axle ends 13 and 14 on. Between these protruding axle ends 13 and 14 and the second end of the bilateral levers 15 and 16, respectively, a spreading device 17 and 18 is arranged. This spreader 17 or 18 presses the second end 15 or 16 of the two-sided lever 6 or 7 and the protruding ones when actuated accordingly Axis ends 13 and 14 of the rigid roller 10 in the direction of the arrows 21 and 22 apart. In the exemplary embodiment, this is a spreading device 17 or 18 designed as a fluid cylinder.

When the spreading devices 17 and 18 are actuated in the manner described, the position-changeable roller 1 becomes moved in the direction of the rigid roller 10 and finally via the foulard fabric 19 located between the two rollers against the rigid one

Roller 10 pressed. At the same time, due to the reaction force occurring at the spreading devices 17 and 18, a bending moment is introduced into the rigid roller 10 via the protruding axle ends 13 and 14. This bending moment causes a deformation of the roller 10. Since the rollers 1 and 10 are coupled to one another in terms of force, a corresponding deformation also occurs on the position-variable roller 1. The bending moments introduced and the size of the deformation of the rollers 1 and 10 can be calculated according to the usual and known rules of statics. Both rollers 1 and 10 deform as a result of the forces introduced via the spreading device 17 and 18 in the same size and direction , so that they have bending lines 23 and 2Λ corresponding to one another. In this way it is achieved that a uniform roll gap 20 occurs over the entire effective roll length, whereby the desired uniform dewatering of the padding fabric is achieved.

List of the reference symbols used

1 variable position roller

2 end of roller

3 end of roller

L, first end of a two-sided lever

5 first end of a two-sided lever

6 double-sided lever

7 double-sided lever

8 pivot point

9 pivot point

10 rigid roller

11 Storage

12 Storage

13 protruding axle ends IA protruding axle ends

15 second end of a two-sided lever

16 second end of a two-sided lever

17 Spreading device

18 Spreading device

19 foulard

20 roll gap

21 arrow

22 arrow

23 bending line 2Λ bending line

25 bearing block

26 bearing block

Claims (2)

Claims 1. Pair of rollers for uniform dewatering of padder with one rigid and a roller which is mounted in a variable position for changing the roller gap, characterized in that the variable position mounted roller (1) with their ends (2,3) each in a first end (4,5) of a two-sided lever (6,7) with a fixed or fixable pivot point (8,9) is mounted and that the rigidly mounted roller (10) over the bearing (11,12) protruding axle ends (13,14) and that each between a protruding axle end (13,14) and the second end (15,16) associated therewith a two-sided Lever (6,7) a power-operated spreading device (17,18) is arranged, the lever ratios of the two-sided lever (6,7) and the protruding axle ends (13,14) are chosen so that during the pressing of the rollers (1,10) both rollers (1,10) are the same Sets the bending line (23,24). 2. pair of rollers according to claim 1, characterized in that the power-operated spreading device (17, 18) is designed as a fluid cylinder is.