Heating method for a band-shaped body and heating apparatus for a band-shaped body
First Claim
1. A heating method for a band-shaped body transported in a constant conveying direction in a heating zone so as to heat it, comprising:
- detecting whether or not a joint portion of the band-shaped body is passing through the heating zone, at which joint portion a first band-shaped body is joined to a second band-shaped body with at least one of different width or different thickness;
before detecting the joint portion pass into the heating zone, setting a first supplied heat quantity based on dimensions of the first band-shaped body on a downstream side of the joint portion in the conveying direction, and supplying heat with the first supplied quantity to the band-shaped body in the heating zone; and
after detecting that the joint portion has passed into the heating zone, setting a second supplied heat quantity based on dimensions of the second band-shaped body on an upstream side of the joint portion relative to the conveying direction, and supplying heat with the second supplied quantity to the band-shaped body in the heating zone, so as to adjust a temperature history of the band-shaped body so that the temperature history is approximately uniform on both upstream and downstream sides of the joint portion.
2 Assignments
0 Petitions
Accused Products
Abstract
A heating method for a band-shaped body transported in a constant conveying direction in a heating zone so as to heat it, comprises: detecting whether or not a portion of the band-shaped body is passing through the heating zone, at which portion at least one of width and thickness of the band-shaped body changes; before detecting the portion pass into the heating zone, setting a first supplied heat quantity based on dimensions of the first band-shaped body on a downstream side of the portion in the conveying direction, and supplying heat with the first supplied quantity to the band-shaped body in the heating zone; and after detecting that the portion has passed into the heating zone, setting a second supplied heat quantity based on dimensions of the second band-shaped body on an upstream side of the portion relative to the conveying direction, and supplying heat with the second supplied quantity to the band-shaped body in the heating zone, so as to adjust a temperature history of the band-shaped body so that the temperature history is approximately uniform on both upstream and downstream sides of the portion.
84 Citations
20 Claims
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1. A heating method for a band-shaped body transported in a constant conveying direction in a heating zone so as to heat it, comprising:
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detecting whether or not a joint portion of the band-shaped body is passing through the heating zone, at which joint portion a first band-shaped body is joined to a second band-shaped body with at least one of different width or different thickness;
before detecting the joint portion pass into the heating zone, setting a first supplied heat quantity based on dimensions of the first band-shaped body on a downstream side of the joint portion in the conveying direction, and supplying heat with the first supplied quantity to the band-shaped body in the heating zone; and
after detecting that the joint portion has passed into the heating zone, setting a second supplied heat quantity based on dimensions of the second band-shaped body on an upstream side of the joint portion relative to the conveying direction, and supplying heat with the second supplied quantity to the band-shaped body in the heating zone, so as to adjust a temperature history of the band-shaped body so that the temperature history is approximately uniform on both upstream and downstream sides of the joint portion. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A heating apparatus for a band-shaped body, comprising:
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a heating zone, where a heated air stream is applied to at least one surface of a band-shaped body being conveyed in a constant direction so as to heat the band-shaped body;
a heated air stream generating unit, that generates a heated air stream; and
a heated air stream supply flow channel for introducing the heated air stream generated by the heated air stream generating unit into the heating zone, wherein;
the heated air stream generating unit has;
an air stream generating unit that generates an air stream; and
a heating unit that heats the air stream generated by the air stream generating unit;
in the heated air stream generating unit, the air stream generating unit generates air stream with a constant air flow rate and the air stream thus generated is made to pass through the heating unit, so as to generate the heated air stream with a constant air flow rate and constant temperature; and
the heated air stream supply flow channel has a heated air flow rate adjusting unit that adjusts, when introducing the heated air stream generated by the heated air stream generating unit into the heating zone, the air flow rate of the air stream to be introduced. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A heating apparatus for a band-shaped body, comprising:
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a heating zone, where a heated air stream is applied to at least one surface of a band-shaped body being conveyed in a constant direction so as to heat the band-shaped body;
a plurality of heated air stream generating units that generate heated air streams with different temperatures;
a heated air stream supply flow channel for introducing the heated air stream generated by the heated air stream generating units into the heating zone; and
a heated air stream introduction ratio adjusting unit provided on the heated air stream supply flow channel that adjusts a ratio of the heated air streams to be introduced into the heating zone from the heated air stream generating units, wherein, in the heated air stream generating units, air streams with constant air flow rates is made to pass through heating units so as to generate the heated air streams. - View Dependent Claims (16)
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17. A heating apparatus for a band-shaped body, comprising:
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a heating zone, where a heated air stream is applied to at least one surface of a band-shaped body being conveyed in a constant direction so as to heat the band-shaped body;
a plurality of heated air stream generating units that generate heated air streams with different temperatures;
a heated air stream supply flow channel for introducing the heated air streams generated by the heated air stream generating units into the heating zone; and
a heated air stream supply flow channel switching unit provided on the heated air stream supply flow channel, for switching the heated air stream supply flow channel so that a heated air stream is introduced from at least one of the heated air stream generating units into the heating zone, wherein, in the heated air stream generating units, air streams with constant air flow rates is made to pass through heating units so as to generate the heated air streams. - View Dependent Claims (18)
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19. A heating method for a band-shaped body transported in a constant conveying direction in a heating zone so as to heat it, comprising:
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detecting whether or not a portion of the band-shaped body is passing through the heating zone, at which portion at least one of width and thickness of the band-shaped body changes;
before detecting the portion pass into the heating zone, setting a first supplied heat quantity based on dimensions of the first band-shaped body on a downstream side of the portion in the conveying direction, and supplying heat with the first supplied quantity to the band-shaped body in the heating zone; and
after detecting that the portion has passed into the heating zone, setting a second supplied heat quantity based on dimensions of the second band-shaped body on an upstream side of the portion relative to the conveying direction, and supplying heat with the second supplied quantity to the band-shaped body in the heating zone, so as to adjust a temperature history of the band-shaped body so that the temperature history is approximately uniform on both upstream and downstream sides of the portion. - View Dependent Claims (20)
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Specification