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Temperature probe for thermoplastic extrusion machines

A technology of temperature probes and extruders, applied in the field of temperature probes

Active Publication Date: 2017-06-09
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In fact, in these special temperature probes, the housing is screwed into the extrusion cylinder without a defined blocking position

Method used

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  • Temperature probe for thermoplastic extrusion machines
  • Temperature probe for thermoplastic extrusion machines

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Experimental program
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Embodiment Construction

[0022] With reference to these figures, the temperature probe, in particular for thermoplastic compound extruders, generally indicated with reference numeral 1 , comprises at least one housing 2 and at least one thermocouple 3 accommodated inside the housing 2 .

[0023] As will be better described hereinafter, the housing 2 is adapted to be inserted into the extrusion cylinder 4 substantially at right angles to the direction of extrusion, with one end facing into the inner cavity 5 of the extrusion cylinder 4, so that the housing and the The extruded material in cavity 5 is in direct contact.

[0024] Consider a thermocouple 3 adapted to detect the temperature of the extruded material circulating in the cavity 5 by heat conduction through the housing 2 .

[0025] According to the invention, thermal insulation 6 is included at least partially between housing 2 and extrusion cylinder 4 in order to reduce the thermal influence of the latter on the measurements made by thermocoup...

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Abstract

A temperature probe (1), particularly for thermoplastic mix extrusion machines, which comprises at least one casing (2), which is adapted to be inserted in an extrusion cylinder (4) substantially at right angles to the extrusion direction with one end thereof facing into the internal cavity (5) of the extrusion cylinder (4) so that it is in direct contact with the extrusion material contained in the internal cavity (5), and at least one thermocouple (3), which is accommodated in the casing (2) and is adapted to detect the temperature of the extrusion material by thermal conduction through the casing (2), the temperature probe (1) comprising thermally insulating means (6) which are interposed at least partially between the casing (2) and the extrusion cylinder (4) so as to reduce the thermal influence of the extrusion cylinder (4) on the measurement made by the thermocouple (3).

Description

technical field [0001] The present invention relates to a temperature probe, in particular a temperature probe for a thermoplastic compound extruder. Background technique [0002] Currently, international specifications covering self-extinguishing wires or flame-retardant wires (HFFR, Halogen Free Flame Retardant) and wires that have low dust and mist emissions and are halogen-free when burned (LSOH, Low Smoke Halogen Free) have directed manufacturers of compounds to produce such thermoplastic mixtures, which make it difficult for one to work in this environment due to the large amount of heat generated during the handling of such thermoplastic mixtures, which are generated due to their high viscosity. Excessive heat has the disadvantage of causing material degradation. [0003] Such thermoplastic mixtures are usually processed in extruders, which face the above-mentioned technical difficulties and, due to the special composition of the mixture itself, its extrusion speed i...

Claims

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Application Information

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IPC IPC(8): G01K1/16G01K7/02G01K1/08B29C47/92B29C48/92
CPCB29C48/92G01K1/08G01K1/16G01K7/02B29C2948/92209H04N19/176H04N19/12H04N19/463H04N19/14H04N19/90B29C48/681B29C48/2565B29C48/832B29C48/834B29C2948/9238B29C2948/924B29C48/83G01J5/021G01J5/0225G01J5/485B29K2101/12
Inventor 斯塔凡诺·保莱蒂
Owner SEMPLICE
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