HU183967B - Device for continuous pressing plastic materials - Google Patents

Abstract

The plastic material is extruded in to a strip or strips, for use in operations in the confectionery and continuous baking industries. The aim of the invention is to produce strips of material which are of a uniform configuration. This is achieved in that two contour rolls 2 rotate in a roll housing 1 in opposite directions relative to the roll housing 1, thereby forming a material container 3 and a pressure chamber 4. The plastic material 13 is uniformly extruded out of nozzles 5, 6 by the shape of the contour rolls 2 relative to the position of a control rocker member 11 which is arranged therebelow. The rocker member 11 cuts the pressure chamber 4 off from the container 3, so that extrusion pressure is independent of the height of material in the container 3. The rocker member 11 is adjustable towards and away from the rolls 2, to thereby regulate the amount of material which is carried back up into the container by the rolls 3, and thereby regulate the amount of material being extruded. <IMAGE>

Description

FIELD OF THE INVENTION The present invention relates to an apparatus for continuously extruding plastic materials, preferably confectionery, in the form of endless strips or formed strips, in which the materials are conveyed from a container to a continuous mat such as a conveyor belt or a dough belt.

Devices for continuous extrusion of plastic materials, such as die rolls or screws, which are used to produce endless tapes and strips are known. Such devices are disclosed in German Patent Nos. 141 + 80 and 2,838,430, and in German Patent Nos. 135,992 and 141,992.

Particularly for less solids, these devices react depending on pressure. For many filled materials, the pressure in the container is higher than in the lower filling state. This results in uneven tape thickness.

It is an object of the present invention to provide endless tapes and strips of plastic material in a pressure-independent manner while the material loading height may vary continuously.

The object of the present invention was to provide a stamping process by the special design of the cylinder housing and the placement of the contour rollers and the outlet.

This is solved according to the invention by contouring cylinders which are rotatably mounted in a cylinder housing. In the cylinder housing, which is a cylinder with a tapered end and / or a square block with a tapered end, a material container is formed above the contour cylinders and a pressure space is created under the contour cylinders. The ribbon die opening connected to the tip of the cone or pyramid can be divided into separate press holes by dividing walls therein. The contour cylinders are designed and positioned so that a protrusion of one cylinder is located opposite the protrusion of one cylinder. The contour cylinders rotate in opposite directions towards the cylinder wall at the same speed. There is a gap between the contour cylinders, located beneath the control shaft which is movable on the pitch axis. The adjusting lever can be adjusted to a maximum distance from the position in contact with the contour cylinders.

DETAILED DESCRIPTION OF THE INVENTION The invention will be described in more detail with reference to one embodiment, with reference to the drawings.

In the drawing it is

Fig. 1 shows, in one embodiment of the device according to the invention, the position of the control anvil at maximum extrusion volume,

Fig. 2 shows the position of the control lever of the same device for a minimum amount of press.

The plastic material 13 in the upper material container portion 3 of the cylinder housing is located at its own weight in the recesses 8 of the contour cylinders 2. The contour rollers 2 convey the plastic materials 13 under pressure without the pressure of the outer wall of the cylinder housing. The tongue ends 12 in contact with the surface of the contour rollers 2 ensure that the conveyed plastic material 13 remains in the printing space 4. After the printing space 4 is filled, the plastic material 13 flows through a belt press opening 5 or a separate press opening 6 to a conveyor tray 15 to form a belt 14. By adjusting the adjusting strap 11, it can be seen that, as shown in Fig. 2, a portion of the plastic material 13 is not separated by the tufts 12 and thus returns to the material container 3. As a result, the amount of plastic material 13 draining will be less, so that the strip 14 will also be thinner. The contour cylinders 2 according to the pattern are designed and arranged so that the protrusion 7 of one contour cylinder 2 is opposite to the recess 8 of the other contour cylinder 2. A gap 9 is formed between the contour rollers 2. Below the contour rollers 2, an adjusting shaft 11 is disposed on an adjusting shaft 10. This is moved by the contour rollers 2 through the projections 7 without any external effect.

Claims (15)

Patent claims 1. Apparatus for continuous extrusion of plastic materials in the form of endless strips or strips, 20 characterized in that two contour cylinders (2) are embedded in a cylinder housing (1), at any position in the direction of the slot (9) of the pressure cavity (4), optionally directly connected to the projections (7) and recesses (8) of the contour cylinders (2) closed so Of the 25 material containers (3), the plastic material (13) is connected to the web (5) and / or the separate press (6) via the press space (4). An embodiment of the device according to claim 1, characterized in that the two contour rollers (2) are identical It is rotatably rotated in the cylinder housing (1) at 30 revolutions. An embodiment of the device according to claim 1, characterized in that, under the two contour rolls (2), separated by a variable spacing therebetween, the adjusting flange (11) is driven through the protrusions (7) of the contour rollers (2). An embodiment of the device according to claim 1, characterized in that the protrusion cylinder is raised against the recess of the other contour cylinder (2). 45 Designation of parts: 1st cylinder 2. Contour rollers Material container 3 50 printing area 4 5. ribbon press hole 6. separate press opening 7. prominence 8th indentation 55 Slot 9 10. Adjusting shaft 11th control anthem 12. hocks 13. plastic material 60 Tape 14 15. transport washer 1 figure