Heating roll press machine and heating roll press method

Patent metadata

Field	Value
Publication number	US-10953618-B2
Application number	US-201816209131-A
Country	US
Kind code	B2
Filing date	Dec 4, 2018
Priority date	Dec 18, 2017
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

A heating roll press machine according to the present disclosure includes a pair of rollers and a preheating unit that preheats a processing object before the processing object is conveyed to the pair of rollers. The preheating unit preheats the processing object so that a temperature distribution differs according to positions in a width direction of the processing object to reduce a temperature difference in the width direction of the processing object after the processing object passes through the pair of rollers each having a temperature difference between a roller central part and roller end parts.

First claim

What is claimed is:

1. A heating roll press machine comprising:
a pair of rollers; and
a preheating unit that preheats a processing object before the processing object is conveyed to the pair of rollers,
wherein the preheating unit preheats the processing object so that a temperature distribution differs according to positions in a width direction of the processing object to reduce a temperature difference in the width direction of the processing object after the processing object passes through the pair of rollers each having a temperature difference between a roller central part and roller end parts, and
wherein the preheating unit controls the temperature distribution in the width direction of the processing object so that a maximum heating temperature of the pair of rollers is 400° C. or more and 800° C. or less.

2. The heating roll press machine according to claim 1 ,
wherein the preheating unit applies a higher heat amount to end parts in the width direction of the processing object than to a central part in the width direction of the processing object when a surface temperature at the roller central part is higher than surface temperatures at the roller end parts in each of the pair of rollers.

3. A heating roll press method comprising:
preheating a processing object by a preheating unit;
feeding the processing object preheated by the preheating unit between a pair of rollers of a heating roll press to perform heating pressurization; and
changing a position of the processing object passing through the heating roll press in a roller width direction of the pair of rollers with lapse of time,
wherein the processing object is preheated so that a temperature distribution differs according to positions in a width direction of the processing object to reduce a temperature difference in the width direction of the processing object after the processing object passes through the pair of rollers each having a temperature difference between a roller central part and roller end parts.

4. The heating roll press method according to claim 3 ,
wherein the processing object is preheated by giving a higher heat amount to end parts in the width direction of the processing object than to a central part in the width direction of the processing object when a temperature at roller central part is higher than surface temperatures at roller end parts in each of the pair of rollers.

5. A heating roll press machine for performing pressurization treatment to a processing object, the heating roll press machine comprising:
a preheating unit that heats the processing object, the preheating unit applying a first temperature distribution of heat wherein greater heat is applied to end portions of the processing object than to a central portion of the processing object;
a pair of rollers that heat the processing object after having been heated by the preheating unit, the pair of rollers applying a second temperature distribution of heat wherein greater heat is applied to the central portion of the processing object than to the end portions of the processing object; and
a belt conveyor transporting the processing object to the preheating unit and the pair of rollers,
wherein the preheating unit controls the first temperature distribution in a width direction of the processing object so that a maximum heating temperature of the pair of rollers is 400° C. or more and 800° C. or less.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Miyatake Kazufumi
• Nagino Toshifumi
• Fukuda Kazuto

Classifications

• B30B11/18

  using profiled rollers · CPC title

• B30B15/308

  in a continuous manner, e.g. for roller presses, screw extrusion presses · CPC title

• B30B3/04

  co-operating with one another, e.g. with co-operating cones · CPC title

• B30B15/30

  Feeding material to presses · CPC title

• B30B15/34 Primary

  Heating or cooling presses or parts thereof · CPC title