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Template, resin machine, and method for heating nozzle of template

A nozzle and template technology, applied in the field of nozzle heating, can solve problems such as temperature unevenness, resin particle shape deviation, etc., and achieve the effect of suppressing temperature unevenness

Pending Publication Date: 2022-02-22
KOBE STEEL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the heating medium F flows to multiple heat passages, the heat input to the nozzles differs between the columns close to the heat passages (columns at both ends) and the columns away from the heat passages (central columns), and each nozzle heats Temperature unevenness is prone to occur in the area
Also, if the resin sticks around the discharge portion of the relatively low-temperature nozzle, the shape of the resin pellets cut off by the cutter device tends to deviate

Method used

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  • Template, resin machine, and method for heating nozzle of template
  • Template, resin machine, and method for heating nozzle of template
  • Template, resin machine, and method for heating nozzle of template

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Embodiment Construction

[0060] Hereinafter, each embodiment of the present invention and modifications thereof will be described in detail with reference to the drawings. The die plate according to each embodiment of the present invention is used in a granulation device for resin pellets, and has a large number of nozzles through which molten resin is extruded, and at least one heating medium for flowing a heating medium that heats the nozzle walls forming the nozzles. flow path. In addition, a cutter device (not shown) is arranged on the nozzle surface on the resin injection side of the template, and the resin extruded from the nozzle is cut with the cutter to form resin pellets. This resin cleavage is performed in water.

[0061] In addition, the heating medium heated by a heating device not shown is sent to the heating medium flow path. Fluid such as thermal oil or steam is used as the heating medium, and the heating medium flows through the heating medium flow channel and is discharged from the...

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Abstract

The invention provides a template, a resin machine, and a nozzle heating method of the template. The template is provided with a nozzle group including a plurality of nozzles through which molten resin passes, and a heating medium guide part for guiding a heating medium for heating the nozzle wall of each nozzle. The heating medium guide portion has: an inlet for receiving the heating medium; an outlet through which the heating medium is discharged from the heating medium flow path; and a guide wall defining, together with the outer peripheral surface of the nozzle wall of each of the plurality of nozzles, a heating flow path connecting the inlet and the outlet. Accordingly, temperature unevenness of the nozzle can be restrained.

Description

technical field [0001] The invention relates to a template, a resin machine and a nozzle heating method for the template. Background technique [0002] Conventionally, as a granulation device for resin pellets, a granulation device including a template and a cutter device is known (for example, refer to Japanese Patent Laid-Open Publication No. 2013-111891). The die plate has a large number of nozzles that are provided on the downstream side of the extruder and discharge molten resin. The cutter device cuts the resin extruded from the nozzle into pellet shapes. The surface of the formwork on the side where the resin was discharged was placed in circulating water for conveying the severed particles. Therefore, in order to prevent the resin from sticking to the nozzle, a heating flow path through which a heating medium such as steam or heat medium oil for heating the nozzle passes is provided inside the die plate. [0003] Japanese Invention Patent Laid-Open Publication No....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06B29B13/02
CPCB29B9/06B29B13/02B29B9/065B29B7/826B29B7/428B29B7/488B29C48/865B29C48/04B29C48/05B29C48/0022B29C2793/0027B29C48/345B29B7/582B29C48/3003B29B9/10
Inventor 筱崎贵宏岩崎伸
Owner KOBE STEEL LTD
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