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Extruder with extruding belt distribution correction

A technology for extruders and extrusion belts, applied in the direction of presses, conveyor objects, manufacturing tools, etc., can solve problems such as deviation of circulation belts, pressure changes of extrusion materials, and adverse effects on product quality, so as to maintain product quality Effect

Inactive Publication Date: 2006-05-10
KRONOPLUS TECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Especially in the case of double-belt extrusion machines, the problem is that the endless belt runs off to the left or to the right as seen in the conveying direction
[0007] Although it is possible in principle to control the distribution of the steel strip used as an extrusion strip by varying the pressure applied by the rolling rods to the extrusion strip, a disadvantage of the solution to the above problem is that the pressure acting on the material to be extruded also varies
adverse effect on product quality

Method used

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  • Extruder with extruding belt distribution correction
  • Extruder with extruding belt distribution correction
  • Extruder with extruding belt distribution correction

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] figure 1 A continuous extrusion machine for the production of MDF-, HDF- or chipboard and similar boards is schematically shown. Two extrusion belts 1 made of steel are guided around rollers 2 . Rods 3 , called rolling rod swivel bearings, are connected to each other in strips by chains 4 . The chain 4 is driven by gears not shown. Gears are on the ends of the input shaft 5 and the output shaft 6 . The belt formed by the rolling rods 3 is guided around the above-mentioned shafts 5 and 6 , and generally at a significantly lower speed than the extrusion belt 1 is guided around the rollers 2 . This causes the rotatably mounted rolling rod to rotate.

[0033] The material to be extruded is conveyed along arrow 7 into the extruder. Squeezing then takes place in the area adjoined by the rolling rod.

[0034] figure 2 A top view of the scroll bar 3 is shown. These rolling bars are arranged perpendicular to the conveying direction 7 .

[0035] exist image 3The top v...

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PUM

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Abstract

A press for pressing a material to form a structural component comprises at least one revolving press band and a control for controlling the course of the press band. The control is preferably carried out via rotating rods that engage the press band and that can be tilted at a convenient angle for the purposes of varying the direction of travel of the press band. According to the method, the band of the press can be controlled by appropriately tilting the rotating rods.

Description

technical field [0001] The invention relates to a continuous and in particular a twin-belt extrusion machine and a method for controlling the distribution of the extrusion belts. A twin-belt extruder consists of two endless belts that are extruded against each other. DE 41 10 678 C1 and DE 198 24 723 C1 disclose extrusion machines of the type according to the invention. Background technique [0002] Continuous extruders are used for extruding wood pellets, fibers, wood chips or already pre-extruded fiber mats with a binder, especially while extruding heat. [0003] In particular with twin-belt extruders there is the problem that the endless belt runs off to the left or to the right as seen in the conveying direction. The problem of deviation belt mainly occurs in the squeeze zone. On twin-belt extruders, this zone is between two rollers on the front and rear ends around which the respective endless steel belt is guided. [0004] In the extrusion zone there are rolling ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B5/06B65G39/16
CPCB30B5/067B30B5/06
Inventor 埃里克·海德尔
Owner KRONOPLUS TECHN