EP2620534A1 - Caliber, and textile machine with such a gage - Google Patents

Abstract

The caliber (10') is assigned to the cylinders on a drive side and a guide side, so that the caliber adjusts a cylinder gap between the cylinders. The caliber consists of two bodies (11',12'), of which one body is rotatably mounted. The bodies are received with a common rotational axis (17) along the displacement direction between the elements, so that the bodies contact with their mutually facing end faces. The end faces are formed in stepped manner. The bodies are received coaxially on a common piston.

Description

The invention relates to a caliber for spacing elements displaceable relative to one another in a displacement direction, and to a textile machine with a caliber for spacing rotatable and at least partially displaceable bearings of cylinders of a textile machine, which are mounted on a drive side and on One driver's side is assigned a caliber to the cylinders, so that the caliber adjust a cylinder gap between the cylinders.

The affected by the invention textile machine has a base frame in which at least two cylinders are slidably received against each other in a displacement direction, wherein a cylinder gap is adjustable by means of calibers.

For many products, which are manufactured as endless material, such as car seat belts, very precise material thicknesses with tolerances of a few hundredths of a millimeter are required for the finished product. Due to the known manufacturing processes, in particular the manufacturing processes of the textile industry, these tolerances are often not complied with without finishing. Therefore, pressing and smoothing calenders are used in such continuous products. For example, with such a press and Glättkalander the car seat belt pressed to the desired thickness and at the same time Be smoothed belt surface. This is a refining process that is often done in machines that operate in three-shift operation and are only stopped every 5 to 10 days for a cleaning and maintenance break.

Even slightest differences in the yarn material or small deviations of the production parameters in the weaving process, for example a change in the compression behavior of the continuous material due to material changes or due to changes in material properties during operation make it necessary to correct the cylinder gap during ongoing production.

So far, this setting is done e.g. by the insertion of spacers between the roller bearings, also called caliber. The rolls of the calender are driven pneumatically or hydraulically against the spacers according to known methods, either both rolls or only one of them. The use of four calibers per pair of rolls is largely customary in textile machines because it was previously possible to successfully avoid tilting or tilting of the mechanical elements when the rolls moved together. A change in the gap is thus made by replacing the caliber. This takes a certain amount of time and can only be carried out when the system is down.

The object of the invention is to provide quickly and precisely adjustable means for spacing of elements displaceable relative to one another in the displacement direction, so that as far as possible no machine downtime is required. This object is achieved by a caliber with the characterizing features of claim 1 and by a textile machine with the characterizing features of claim 10.

Advantageous embodiments are specified in the subclaims.

The caliber according to the invention consists of at least two bodies, of which at least one is rotatably mounted. The bodies are receivable with a common axis, in particular a common axis of rotation, along the displacement direction between the elements, which is to be spaced. The bodies touch each other with their facing faces. The end faces are stepped.

It is advantageous that the number of calibers can be reduced by such precise caliber with secure contact surfaces, in particular two instead of the usual calenders four calibers per cylinder gap. In addition, changes in the cylinder gap can be achieved faster and more precisely with the caliber according to the invention. The caliber according to the invention can be adjusted manually or automatically. The caliber according to the invention, which does not have to be replaced, not even partially, can adopt a sufficient number of settings in order to meet a wide variety of cylinder gap requirements.

The guidance according to the invention of the caliber surfaces in one rotation ensures a longevity which calibres previously in exchange did not have. Here, premature wear often occurred due to jamming or deformation caused by other causes. Accidental misalignment or loss of the calender caliber is now excluded.

According to an advantageous embodiment of the caliber according to the invention, the bodies are accommodated coaxially on a common piston, so that the piston is a sliding bearing for the rotation of at least one of the bodies.

Possible bodies are therefore disks with a circular or polygonal circumference.

According to a further advantageous embodiment of the caliber according to the invention, the piston has a collar. The collar supports on a body-facing side of the first of the body in the axial direction. An at least penetrating into the collar or the collar penetrating fastener secures the first body against the collar and against rotation about the axis of rotation.

According to a further advantageous embodiment of the caliber according to the invention, the piston has at a front end radially outward a circumferential groove for receiving a securing ring, so that the securing ring supports the second of the body in the axial direction.

In this way, the second body is secured axially displaceably on the piston with simple means in a region adjacent to the first body.

According to a further advantageous embodiment of the caliber according to the invention, the bodies are displaceable towards one another against the force of a spring along the displacement direction. In the event that only one of the body is axially displaceable, only this one body against the force of the spring along the direction of displacement of the other body is displaced counter.

When moving apart of the cylinder, the installation of the spring allows a comfortable adjustment, especially when a larger cylinder gap is set.

According to a further advantageous embodiment of the caliber according to the invention, the end faces in the axial direction consist of partial surfaces which lie in a plurality of mutually parallel planes oriented perpendicular to the axis of rotation and spread over the circumference of the respective body in the manner of blunt cake pieces.

The bodies have sufficient stability with such partial surfaces. Depending on the gradation, it is always possible to distribute the load evenly over the bodies even radially, so that canting can not occur.

According to a further advantageous embodiment of the caliber according to the invention, the end faces are formed with partial surfaces as a helix about the axis of rotation, wherein staircase-like gradations of the body are coordinated.

Such an arrangement offers a particularly low error rate setting options for a wide range of adjustable cylinder column.

According to a further advantageous embodiment of the caliber according to the invention, the end faces of both bodies have the same number of equally spaced-apart partial surfaces, so that the bodies contact each other in a zero position with their end faces.

In such trained end faces a particularly stable support in the zero position can be achieved. This is advantageous in the case of several adjustable cylinder columns or an arrangement of calibers according to the invention in series.

According to a further advantageous embodiment of the caliber according to the invention, a lever can be inserted into at least one of the bodies for rotation of the at least one body in the radial direction. This is in particular an insertion into a radially aligned radially outwardly open blind hole. Alternatively, it is provided that acts on at least one of the body, a controllable drive, in particular radially on the outside of at least one of the body.

The caliber according to the invention according to many of these embodiments are manually or automatically adjustable.

The calibers according to the invention are used, for example, in base frames of textile machines, but are also suitable for spacing elements in other areas.

The invention will be explained in more detail with two exemplary embodiments, which are illustrated in FIGS. The same components are the embodiments overarching provided with the same reference numerals. Not all figures are all reference numerals in order to give a better overview.

Fig. 1

eine Übersicht über die Einbausituation eines erfindungsgemäßen Kalibers zwischen zwei voneinander zu beabstandenden Zylindern im Axialschnitt durch die Zylinder als ein Ausschnitt aus einem Grundrahmen,

Fig. 2

eine perspektivische Ansicht auf zwei in einer Explosionsdarstellung koaxial zueinander ausgerichtete Körper eines erfindungsgemäßen Kalibers,

Fig. 3

einen Axialschnitt durch ein erfindungsgemäßes Kaliber gemäß einem ersten Ausführungsbeispiel in einer Nullstellung,

Fig. 4

das Kaliber gemäß Fig. 3 in einer ersten Spaltstellung und

Fig. 5

einen Axialschnitt durch ein erfindungsgemäßes Kaliber gemäß einem zweiten Ausführungsbeispiel in einer maximalen Spaltstellung.

Show it:

Fig. 1

an overview of the installation situation of a caliber according to the invention between two mutually spaced cylinders in axial section through the cylinder as a section of a base frame,

Fig. 2

3 is a perspective view of two bodies of a caliber according to the invention which are aligned coaxially with one another in an exploded view;

Fig. 3

an axial section through an inventive caliber according to a first embodiment in a zero position,

Fig. 4

the caliber according to Fig. 3 in a first gap position and

Fig. 5

an axial section through an inventive caliber according to a second embodiment in a maximum gap position.

Fig. 1 shows a part of a base frame 1, the rotatable cylinder 3, 5 superimposed in a mutually parallel arrangement, so that between the cylinders, a cylinder gap 6 is formed. To adjust this cylinder gap 6, caliber 10, between the bearings of the cylinder 3, 5 are arranged on a leader page 9 and a drive side.

The cylinders 3, 5 are in a displacement direction 7 mutually displaceable elements, for example pneumatically or hydraulically. For this purpose, the first cylinder 3 is mounted in a fixed bearing 2 and the second cylinder 5 in a floating bearing 4. The caliber 10, the cylinder gap 6 before, if after an excessive change of the caliber widening of the cylinder gap both elements are shifted back in the direction of displacement 7 as far as each other, as allowed by the caliber 10.

In the Fig. 1 only schematically recognizable caliber according to the invention each consist of at least two bodies 11, 12, of which at least one is rotatably mounted. The bodies 11, 12 are receivable with a common axis of rotation 17 along the displacement direction between the elements, so that the bodies touch each other with their end faces 13, 14 facing one another.

Fig. 2 shows the body 11, 12, the calender according to the invention according to a first embodiment in an exploded view, so that a view of one of the end faces 14 is granted. The end face 14 is stepped. The in the perspective view according to Fig. 2 Concealed end face 13 of the first body 11, the two bodies of the caliber 10, according to the illustrated embodiment, the stepped end face 14 of the second body 12, correspondingly stepped 15th

The first embodiment is in the FIGS. 3 and 4 shown in axial section, the FIGS. 3 and 4 a complete caliber 10 according to the invention. Both bodies 11, 12 are arranged on a piston 18 which has a collar 21 (not shown) facing one of the elements which it is intended to space. The collar 21 offers the facing away from the first element at a bearing end of the piston 18 a support surface for the first body 11. The first body 11 is clamped by means of a fastener 20 against the collar 21, so that the first body can not rotate and remains secured in its axial position. Seen in the direction of displacement 7 - also along the axis of rotation 17 - is the second body 12 (not shown) facing the second element to be spaced, on the piston 18 received. In this section, the piston 18 functions as a bearing for the rotation of the second body 12 about the rotation axis 17. For axial securing of the second body 12 is a circlip 19. The circlip 19 is according to the illustrated embodiment in a circumferential groove 18 around the piston 25th used.

In Fig. 3 the caliber 10 according to the invention, according to the first embodiment shown in a zero position in which the end faces 13, 14 completely touch. In Fig. 4 is the second body 12, for setting a cylinder gap, which is greater than the cylinder gap of the zero position, twisted into a gap position. In this case, only partial surfaces 23 of the end faces 13, 14 touch as contact surfaces 16. For switching between the zero position and / or different gap positions, a lever in a blind hole 24 (FIG. Fig. 2 ) can be inserted in the circumferential surface of the second body 12, so that the rotation of the second body can be effected by means of the lever. The lever is repositioned between a plurality of blind holes 24 distributed over the circumference and at the same time serves as a safeguard against unintentional or automatic twisting. For this purpose, the lever engages after each rotation, for example by 30 °, in a groove (not shown).

The invention thus allows a quick and precise adjustment of only two calibers - a caliber on the driver's side 9 and a caliber on the drive side 8 - without having to change the basic construction of the base frame 1 in comparison to conventional arrangements of four calibers in known base frame. For example, the second body 12 may be rotated in increments of 30 ° from the first stationary body 11, with finer or coarser resolutions being advantageous. The bodies 11, 12 of the first embodiment are graduated staircase-like, each opposing faces of the body have the same increase measure. For example, at twisting steps of 30 °, at least two equally high individual surfaces of a body always rest on the corresponding contact surface (s) of the opposing body. Instead of a proportional change in the gap dimension and degressive gap size increases may be possible. Then the faces are graduated different degrees to each other. Instead of the illustrated ring shape of the adjusting elements, for example, a polygon can be used.

In Fig. 5 the caliber 10 'according to the invention is shown according to a second embodiment. According to the second embodiment, the body 11 ', 12' against the force of a spring 22 along the direction of displacement 7 to each other to be displaced. The representation according to Fig. 5 shows the caliber 10 'without load, so that touch no end faces 13 and the body 11', 12 'are pushed far apart at most. For this purpose, the bodies 11 ', 12' are partially recessed radially inward 26, 27 in order to receive the spring 22 in the recesses 26, 27. It is according to the second embodiment, a coil spring. In the context of the invention, for example, all torsion springs are to be regarded as equivalent means.

List of reference numerals:

1

base frame

2

fixed bearing

3

first cylinder

4

movable bearing

5

second cylinder

6

Cylinder gap

7

displacement direction

8th

drive side

9

tender side

10, 10 '

caliber

11, 11 '

first body

12, 12 '

second body

13

first end face

14

second end face

15

step

16

Touchpad

17

axis of rotation

18

piston

19

circlip

20

fastener

21

collar

22

feather

23

subareas

24

blind

25

groove

26

recess

27

recess

Claims (10)

Caliber (10, 10 ') for spacing elements displaceable relative to one another in a displacement direction (7),
in particular for spacing of rotatable and at least partially displaceable in a base frame (1) recorded bearings of cylinders (3, 5) of a textile machine, wherein on a drive side (8) and on a leader (9) each have a caliber associated with the cylinders, so the calibers set a cylinder gap (6) between the cylinders,
characterized in that - The caliber (10, 10 ') consists of at least two bodies (11, 11', 12, 12 '), of which at least one is rotatably mounted, - The body with a common axis of rotation (17) along the direction of displacement between the elements are receivable, so that the body with their facing end faces (13, 14) touch, and that - The faces are formed stepped. Caliber (10, 10 ') according to claim 1, characterized in that the bodies (11, 11', 12, 12 ') are accommodated coaxially on a common piston (18), so that the piston (18) for at least one of the bodies a sliding bearing for its rotation. Caliber (10, 10 ') according to claim 2, characterized in that the piston (18) has a collar (21) and that the collar on a body (11,11', 12, 12 ') side facing the first ( 11, 11 ') of the body is supported in the axial direction and that a collar at least partially penetrating fastener (20) clamps the first body against the collar and against rotation about the rotation axis (17) ensures. Caliber (10, 10 ') according to one of claims 2 or 3, characterized in that the piston (18) at a front end radially outwardly a circumferential groove (25) for receiving a securing ring (19), so that the locking ring the second (12, 12 ') the body is supported in the axial direction. Caliber (10, 10 ') according to one of the preceding claims, characterized in that the bodies (11, 11', 12, 12 ') against the force of a spring (22) along the displacement direction (7) are mutually displaceable. Caliber (10, 10 ') according to one of the preceding claims, characterized in that the end faces (13, 14) seen in the axial direction consist of partial surfaces (23) arranged in a plurality of mutually parallel, orthogonal to the rotation axis (17) aligned Laying planes and spread over the circumference of the respective body (11, 11 ', 12, 12') according to the type of blunt cake pieces. Caliber (10, 10 ') according to one of the preceding claims, characterized in that the end faces (13, 14) are formed with partial surfaces (23) as a helix about the axis of rotation (17), wherein step-like graduations of the bodies (11, 11 ', 12, 12') are coordinated. Caliber (10, 10 ') according to one of the preceding claims, characterized in that the end faces (13, 14) of both bodies (11, 11', 12, 12 ') have the same number of equally spaced stepped faces (23), so that the bodies touch each other in a zero position with their faces (13, 14). Caliber (10, 10 ') according to one of the preceding claims, characterized in that for rotation of the at least one body (11, 11', 12, 12 ') in the radial direction, a lever is insertable into at least one of the bodies, in particular into a radially aligned radially outwardly open blind hole (24), or that at least one of the body (11, 11 ', 12, 12'), in particular radially outwardly, a controllable drive engages. Textile machine with a base frame (1) in which at least two cylinders (3, 5) in a displacement direction (7) are slidably received against each other, wherein by means of calibers (10, 10 ') a cylinder gap (6) is adjustable, characterized in that the calibers are designed according to one of the preceding claims.

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