DE7802909U1 - DEVICE FOR HOLDING FABRIC AND Knitted Hoses - Google Patents

Description

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Machine factory

Max Goller,

8676 Schwarzenbach / Saale

Device for keeping woven and knitted hoses wide

The innovation relates to a device for holding wide Woven and knitted hoses with guide rollers, the running surfaces of which are designed as support surfaces, a circumferential groove have and roll against the hose, and with a tensioning device inside the hose.

Such devices for keeping woven or knitted hoses wide are used in particular to or to give knitted tubes a defined flat shape with two wall panels running parallel to one another.

There are devices for keeping woven or knitted hoses known in which the guide rollers, the have a circumferential groove in their end-face support surface, run on the outer wall of the hose web, with narrow rollers or bands are arranged inside the hose as a tensioning device and the hose path to the outside against the Press guide rollers. There is a risk that the hose web will slide through between the guide rollers and the tensioner is deformed or damaged.

The task of the innovation, on the other hand, is to create a device for keeping woven or knitted hoses wide, through which the hose can run gently and without the risk of deformation or damage.

This task is' with a device for keeping wide Woven and knitted hoses, the guide rollers, the running surfaces of which are designed as support surfaces and a circumferential groove have and roll against the hose, and contains a tensioning device inside the hose, thereby solved,; that the guide rollers on the two run parallel to one another in the hose direction and from one another pushing away clamping elements of the clamping device are arranged and that counter rollers outside of the hose one the Carry hose in the circumferential groove of the guide rollers pressing ring coaxially and with respect to the hose direction and behind the guide rollers at a distance from the hose axis that narrows the hose that is kept wide are arranged. The ring is preferably mounted coaxially and rotatably on the counter rollers.

The advantages of the innovation are, in particular, that the tubular web made of woven or knitted fabric can slide gently between the circumferential bead of the counter rollers and the circumferential groove of the guide rollers without being deformed or damaged to be, the device is simple and inexpensive to manufacture. ί

According to a preferred embodiment of the innovation are on each of the tensioning elements has at least two guide rollers closely spaced from one another in the direction of the hose as a pair of rollers arranged, both of which press the hose against a counter-roller arranged between the guide rollers. Preferred there are at least two pairs of rollers on each of the clamping elements

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arranged at a distance in the direction of the hose, and in the direction of the hose Between the guide rollers of the individual roller pairs there is a counter roller, the bearing surfaces of which on the circumference of the roller press the hose web against the two guide rollers of the roller pairs and thereby the hose wall and deflect part of the circumference of the support surface of the counter roller in the direction of the interior of the hose.

The guide rollers in the interior of the hose preferably point to both Sides of the circumferential groove each have a wide contact surface with rounded ones Outdoor areas. The counter rollers arranged outside the hose path also have a support surface wide contact surface corresponding to the guide rollers, which is limited in the length of the roller axis by circumferential beads are, wherein the outer circumferential beads are drawn over the bearing surfaces of the guide rollers. Through the circumferential bulges, in particular by the central circumferential bead engaging in the circumferential groove of the guide rollers, which has the shape of a can have rotatable ring, precise guidance of the guide rollers is guaranteed. Due to the wide contact surfaces the guide rollers and the counter rollers also ensure that the tubular fabric or knitted fabric without deformation can slide through the spreader device.

The bearing surfaces of the guide rollers and the counter rollers must be well balanced. The hose web is transported by the counter rollers, which are driven in a suitable manner will.

In the following, an embodiment of the innovation is explained in more detail with reference to the drawing. Show it:

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Fig. 1 is a side view of the upper half of the innovation according to the invention Device, the hose web shown in section for the sake of clarity is; and

FIG. 2 shows a cross section through part of the device shown in FIG.

The device shown in Figures 1 and 2 shows a tensioning device 10, the two parallel to each other in the direction of the tube has extending tensioning elements 8, the distance between which can be adjusted via tensioning elements 11. the Clamping elements 8 have a pair of guide rollers 1 in the hose direction at the upper and lower end, which are on one Brackets 9 attached to the clamping elements 8 are arranged closely spaced one behind the other in the hose direction. The clamping device is located inside the hose, and the distance between the two Spai ^ nelement "? 8 is chosen such that the guide rollers 1, the wide and well balanced contact surfaces 2 have, are pressed against external, driven counter-rollers 4, which in the hose direction between the closely spaced guide rollers of the pairs of rollers are arranged.

The counter rollers 4 contacting the hose 12 from the outside have a rotatable ring 5 which presses the hose into the circumferential groove 3 of the guide rollers 1 approximately in the middle of the support surfaces 6 of the counter rollers 4. The distance between the shaft 4 ^{1 of} the counter rollers 4 and the connecting line the axes of the guide rollers 1 within a pair of guide rollers is dimensioned such that the circumferential bead 5 of the counter-rollers 4 also engages in the groove 3 of the guide rollers 1, so that the counter-rollers prevent the tensioning device 10 from being displaced in the hose direction.

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and across the direction of the hose.

The width of the bearing surfaces 6 of the counter rollers 4 corresponds the wide contact surfaces 2 of the guide rollers 1 ♦ in the axial direction of the counter rollers 4 are located at the ends of end beads 7, which also grip laterally over the bearing surfaces 2 of the guide rollers 1.

Instead of the guide rollers 1, which are in the middle of their contact surface 2 have a circumferential groove 3, guide rollers made of two cylindrical disks of the same diameter can also be used use, which are spaced from each other by a third cylindrical disk of smaller diameter and all be arranged on a common axis.

The patent attorney

Gudel

07/13 TB

Claims (7)

Protection claims 1. Device for keeping woven and knitted hoses wide, with guide rollers, the running surfaces of which are designed as bearing surfaces, have a circumferential groove and roll against the hose, and with a tensioning device inside the hose, characterized in that the guide rollers (1) on the two in the hose direction clamping elements (8) of the clamping device that run parallel to one another and push away from one another (10) are arranged and that counter rollers (4) outside of the hose a ring (5) which presses the hose into the circumferential groove (3) of the guide rollers (1) Carry coaxially and with respect to the hose direction in front of and behind the guide rollers in one of the wide held Hose are arranged slightly narrowing distance to the hose axis. 2. Device according to claim 1, characterized in that the ring (5) is coaxial on the surface of the counter rollers (4) is rotatably mounted. 3. Device according to claim 1 or 2, characterized in that at least two on each of the clamping elements (8) Guide rollers (1) close to each other in the direction of the hose -Z- are spaced apart as a pair of rollers, and that between the guide rollers (1) each have a counter roller (4) is arranged. 4. Apparatus according to claim 3, characterized in that at least two pairs of rollers made up of guide rollers (1) are arranged spaced apart in the hose direction on each of the tensioning elements (8). 5. Device according to one of the preceding claims, characterized in that the guide rollers (1) have a wide support surface (2) with rounded outer areas. 6. Apparatus according to claim 5, characterized in that the counter rollers (4) the bearing surfaces (2) of the Guide rollers (1) correspondingly wide contact surfaces (6) own. 7. Apparatus according to claim 6, characterized in that the bearing surfaces (6) of the counter rollers (4) have a have lateral limitation (7). The patent attorney Dr. D. Gudel ■ . ■: --ι