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Extrusion cylinder with guiding cooling or heating medium

A technology of heating medium and rollers, applied in material forming presses, manufacturing tools, presses, etc., can solve problems such as inability to use pins, deterioration of the extrusion process, error-prone extrusion rollers, etc., to achieve the effect of improving quality

Inactive Publication Date: 2021-11-26
KRAUSSMAFFEI EXTRUSION GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the extrusion drum is divided into several flanged segments, pins cannot be used in the flange area
This can slow down or even worsen the extrusion process
[0008] Current temperature control systems for extrusion drums therefore result in a lack of flexibility with regard to the temperature control of the drum and the arrangement of the pins in the drum to facilitate mixing of the extrudate
Furthermore, the production of extrusion cylinders from multiple segments with deep holes is prone to errors and is costly
Operation of such tempering systems is also complicated due to high pressure losses in the holes and non-directional flow guidance

Method used

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  • Extrusion cylinder with guiding cooling or heating medium
  • Extrusion cylinder with guiding cooling or heating medium
  • Extrusion cylinder with guiding cooling or heating medium

Examples

Experimental program
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Embodiment Construction

[0038] Figures 1A to 1C Various schematic views of extrusion roll 100 are shown. Figure 1A shows an oblique view, Figure 1B shows a cross-section of the extrusion drum 100, and Figure 1C A side view of the extrusion drum 100 is shown.

[0039] The extrusion drum 100 essentially consists of a drum body 110, preferably made of metal, which is designed as a hollow drum. The drum body 110 has an outer wall 115 corresponding to the outer shell surface of the hollow drum. Inside the drum body 110 is provided an inner space 118 for accommodating the extruder screw, suitable for guiding, plasticizing and mixing extrudates, such as rubber, raw rubber, and the like.

[0040] The dimensions of the extrusion drum 100 here correspond to the dimensions usually used for extrusion and depend essentially on the substance to be extruded. Typical dimensions for the overall length of the extrusion drum for rubber extrusion are approximately in the range of 1 to 5 metres, ie for example ma...

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PUM

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Abstract

An extrusion cylinder (100) has a cylinder body (110) for accommodating an extruder worm and is characterized in that an outer wall (115) of the cylinder body (110) has at least one depression (120) which can be covered and which in the covered state is suitable for guiding a cooling or heating medium for controlling the temperature of the cylinder body (110).

Description

technical field [0001] The invention relates to an extrusion roll which can be tempered in an efficient manner and to a method for producing such an extrusion roll. Background technique [0002] In the field of extrusion, it is often necessary to temper the extrusion rolls used to guide and mix the extrudate, in which the extruder screw turns the extrudate. Especially in rubber extrusion it is advantageous to first preheat the extrusion cylinder in order to bring the extrudate into a plastically deformable state more quickly. However, in the subsequent process some of the heat generated during conveying / mixing of the extrudate has to be removed again. Usually, a cooling or heating medium is used here, such as water or the like, which is led to the extrusion drum through a line and acts as a heat exchanger. [0003] In order to make the heat exchange as efficient as possible, it is recommended to have the heat exchanger in direct contact with the drum body. For this purpos...

Claims

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Application Information

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IPC IPC(8): B29C48/68B29C48/80B30B15/34
CPCB29C48/6801B29C48/6803B29C48/83B30B11/241B30B15/34B29C48/68B29C48/2565
Inventor 格杰特·克里斯蒂安·普林克凡妮莎·斯塔贝里昂·贾斯帕·泰兹
Owner KRAUSSMAFFEI EXTRUSION GMBH
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