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Extrusion machine with improved temperature control system

A technology of extruder and extrusion cylinder, applied in the field of extruder with improved temperature control system, which can solve the problems of inaccurate measurement of the temperature of processed materials, lower efficiency of temperature adjustment system, low efficiency of cooling system, etc.

Active Publication Date: 2017-09-22
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Another disadvantage of these conventional extruders is the fact that the temperature regulation system has temperature sensors that are inaccurate for measuring the temperature of the material being processed
[0007] Another disadvantage of these conventional extruders is that they have cooling systems that are inefficient and that they therefore further reduce the efficiency of temperature regulation systems of known type

Method used

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  • Extrusion machine with improved temperature control system
  • Extrusion machine with improved temperature control system
  • Extrusion machine with improved temperature control system

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Embodiment Construction

[0021] With reference to the figures referred to, an extruder of improved construction, in particular for thermoplastic compounds, generally indicated by the reference numeral 1 , comprises: an extrusion barrel 2 hollow inside; at least one heating element, conveniently provided by adjacent one or more heaters arranged on the outer surface of the extrusion barrel 2; at least one cooling fan 30-39 engaging the outer surface of the extrusion barrel 2; and at least one temperature probe 3 inserted into the extrusion barrel 2 middle.

[0022] According to the invention, the temperature probe 3 faces directly and internally the cavity 4 of the extrusion barrel 2 and, in particular, in the case of an extruder of the single-screw type shown in the drawings, the temperature probe 3 Facing the cavity that occurs between the inner surface of the extrusion barrel 2 and the outer surface of the extrusion screw 8 .

[0023] The extruder 1 is also suitable for processing different types of...

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PUM

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Abstract

An extrusion machine (1) having an improved structure, comprising: an internally hollow extrusion barrel (2); at least one heating element associated with the extrusion barrel (2); at least one cooling fan (30-39) , the cooling fan engages the outer surface of the extrusion barrel (2); and at least one temperature probe (3) inserted into the extrusion barrel (2), the temperature probe (3) facing the extrusion barrel ( 2) and the temperature probe (3) is adapted to be in direct contact with the extrusion material contained in the cavity (4) of the extrusion barrel (2).

Description

technical field [0001] The present invention relates to an extrusion machine (extrusion machine) having an improved structure and especially for thermoplastic compounds (thermoplastic compounds). Background technique [0002] Currently, international standards for self-extinguishing or flame retardant threads (HFFR, Halogen Free Flame Retardant), having low smoke emissions and being halogen free in case of combustion (LSOH, Low Smoke Zero Halogen) compel manufacturers of compounds to provide such Thermoplastic Compounds: These thermoplastic compounds are difficult to process due to their high viscosity which results in a large amount of heat being generated during the processing of such thermoplastic compounds. Excessive heat has the disadvantage of deteriorating the material itself. [0003] Such thermoplastic compounds are usually processed in extruders, where the extrusion speed is reduced by 50 with respect to the processing of ordinary types of thermoplastic compounds ...

Claims

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Application Information

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IPC IPC(8): B29C47/82B29C47/92B29C47/66B29C47/08B29C45/72B29C45/78B29C48/03B29C48/65B29C48/655B29C48/68B29C48/92
CPCB29C48/65B29C48/655B29C48/92B29C48/834B29C48/832B29C48/68B29C48/03B29C2948/924B29C2948/92895B29C2948/92704B29C48/6801B29C2948/92209B29C48/83B29C48/25B29C45/72B29C45/78
Inventor 斯特凡诺·保莱蒂
Owner SEMPLICE
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