DE1604746A1 - Device for separating a stream of material from a skin formed on a rolling mill made of rubber mixtures, plastic material or the like. - Google Patents

Description

SEMPERIT AUSTRIAN-AMERICAN GUHMIWEBKE AKTIENGESELLSCHAFT, Vienna

Device for cutting out a stream of material from one formed on a rolling mill Fur made of rubber mixes, plastic material or the like.

The invention relates to a substantially improved one Device for separating a stream of material in the form of a band or plate-like parts from one a rolling mill formed from rubber mixtures, plastic material or the like. with the help of a rotating cutter

It is known per se, from the skin formed on a rolling mill, which is located on the surface of one roller, Cut out a tape with the help of two rotating knife disks that are parallel to each other from the relevant roller by hand and over a Feed conveyor belt for further processing. In this way of working it often happens that with stronger gluing of the material on the roller tears off the strip and thus the material transport is interrupted · It must therefore the rolling mill The operator must be carefully observed to put it back on again by hand as soon as the tape breaks To put on conveyor belt

The invention is based on the object of a device

to create that avoids this disadvantage, i.e., in the the cut tape automatically from the relevant roller

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is detached

According to the invention, this is the case with the device of the introduction mentioned type achieved in that the two rotating knife discs are placed obliquely against each other, wherein the distance between them decreases towards the Valze.

As a result of this measure, this will be done by the two knife disks cut-out band pinched by these in the course of the rotation and thereby 'mitgenomiaen', i.e. detached from the roller Said the distance between the two rotating disks increases again from a certain point away from the Valze they release the belt they have taken with them so that it can be transported on by a conveyor belt, without the risk of leaving

In a further embodiment of the son ejaculation device designed according to the invention, the point of the smallest distance is between the two Hesser washers along the circumference of the same adjustable · This makes it possible to find the optimal Working point, which depends on the properties of the mixture in question, such as hardness, elasticity, etc., for any one To regulate the mixture · It usually proves to be beneficial if the point of the smallest distance between the two knife disks after the points of contact of the knife edges with the Valze.

In principle, the two can be slanted against each other Including cutter disks · angles are about 2, with the lower limit for very hard and the upper limit for extremely soft mixtures applies

It is often necessary or at least expedient to feed the rolling stock to a closely maintained further rolling mill in the form of plate-shaped parts for better homogenization. To achieve such filing, _{t is} in the direction of rotation of

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Orphan seen »in front of the two cutting discs resiliently pressed against the roll surface cross cutting wheel provided, which cross cuts cuts into the rolled skin. By the same level lying, downstream two sea-hulls then cut out the flat-shaped parts

The pressure of the two knife disks and / or the Cross cutting wheelβ can be used to achieve the optimal contact pressure, that of the mix material and the nip setting depends, bit with the help of pneumatic pistons and cylinders, which are supplied by control valves.

The drawing shows an example of the embodiment according to the invention trained device in the same representation illustrated

Fig. 1 shows the door direction in view,

FIG. 2 shows a section through the two knife disks, which is guided along the line A-B of FIG.

The one on the rolling mill with rolls 1 and 2, which »it or can be driven without friction, rolled-out skin 3 is formed on the surface of the rotating roller 1 and is taken away by this. When the desired removal of platelet-shaped parts, the skin 3 arrives first to the rotatable cross cutting wheel 4, which has radially standing knife 4a, the distances between which are the same. With With the help of springs 5 »which press against the bearings 6 of the transverse sonid wheel 4, the skin is pressed against the roller surface pressed. As a result, the knives 4a of the cross-cutting wheel 4 penetrate the rolled-out skin 3 and cut through it this in the transverse direction. The knives 4a are from the skin 3

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taken, which is why the cross cutting wheel 4 with the same Circumferential speed as the roller 1 rotates. The intended on the sides of the bearings 6 facing the roller 1 » adjustable stops 7 are set so that the knife 4a of the transverse cutting wheel 4 just touches the roll surface touch. The rolled out skin 3 then arrives at the two rotating, inclined knife disks 8, which create two longitudinal cuts. Sa the distance a of the two knife disks 8 is smaller than the width of the knives 4a of the transverse cutting wheel 4 »cause the two mentioned Cutting processes that lately platelet-shaped pieces 3a are cut out of the skin 3. As a result the fact that the distance a between the two cutter disks 8 decreases towards the roller 1 in the manner provided according to the invention, become / platelet-shaped sections 3a pinched and taken along by the same. Thus, the cutter disks 8 do not only cause a cutting out in the longitudinal direction but also a lifting off of the cut out platelet-shaped sections 3a from the roll surface Since the distance a between the two cutter disks 8 from a certain point 8a of the same increases again, they enter the wedged plateau-shaped Sections 3a free again. These fall afterwards onto the guide 9 and slide downwards along the same. With With the help of the springs 10, which act against the bearings 11 of the cutter disks 8, the same are set against the roller surface pressed. The oblique division of the cutter disks 8 is achieved by the obliquely pierced sleeves 12 and 13, on which the same are rotatably arranged. The sleeve 12 is fixed on the axis 14, whereas the sleeve is only secured against rotation on the same and adjusted with the aid of the nut 15 in the axial direction can · This makes it possible to set the distance a «between the two cutter disks 8 to the desired dimension. The axis 14 can be rotated by means of the lever 16 attached to it. This can be bit in any position

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Fix the help of the nut 17. Thus it is also possible the point 8a of the smallest distance a between the two cutter disks 8 is optimal for any mixture to discontinue

With the aid of a device designed according to the invention, they are cut out of the pellet 3 in the form of platelets Teilatüqke 3a can be used particularly easily and intensively further homogenization of the material is switched on Rolling mill or other processing is carried out · The material is removed according to the requirements If the rolling mill only wants in the form of a strip, the cross cutting wheel 4 is set out of puncture

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Claims (9)

Claim Device for separating out a stream of material a skin formed on a rolling mill from rubber mixtures, plastic material or the like with two rotatable knife disks * characterized in that the two knife disks (8) are placed at an angle to one another are, the distance (a) between them decreasing towards the roller (1) 2). Device according to claim 1, characterized in that that the point of the smallest distance (a) between the two cutter disks (8) along the circumference the same is adjustable 3) device according to claim 1 or 2, characterized in that that the point (3a) of the smallest distance (a) between the two cutter disks (8) after the Points of contact (3b) of the knife edges with the roller (1). 4). Device according to one of the preceding claims, characterized in that the tone included the two knife disks (8) placed at an angle to one another Angle is around 2 - 60 °, with the lower limit value for very hard and the upper limit value applies to extremely soft mixtures. 5) · Device after one of the gate-goers. Expectations,' characterized in that for cutting out platelet-shaped sections (3a), in the direction of rotation of the 009882/1738 * 16047A6 Roller (1), in front of the two Nesser disks (8), a paddle-wheel-like cross-cutting wheel (A) resiliently pressed against the roller surface is provided 6) · Device according to any one of the claims, characterized characterized that for the pressing rod of the two knife disks (8) and / or the cross cutting wheel (4) pneumatic pistons and cylinders are rorgesahen, which are driven by sail valves to be supplied ?) · Device according to claims 1 to 4 »characterized in that that the two cutter disks (8) are on obliquely drilled through bushes {12 and 13) fastened on the axis (H) are rotatably arranged 6). Door direction according to claim 7, characterized in that one Bushing (12) fixed on the axis (14) and a bushing (13) on the same only secured against rotation and with With the help of the nut (15) can be adjusted axially 9). Device according to claim 7 or 8, characterized in that the axis (14) fixed by means of the on it and fixable in λ any position by means of the nut (17) lever (16) is rotatable · 009882/173 8 Blank page