Welding device and welding method
AssigneeTotani Corporation
InventorsMikio Totani, Tatsuo Odani, Toshinori Ueda
Life of this patent
Estimating the term…
Abstract
A welding device includes a pair of pressure rollers for pressurizing a web and a strip member, a feed device configured to intermittently or continuously feed the web and the strip member through the pair of pressure rollers, and the laser device configured to irradiate the web or the strip member with a laser beam at a position upstream of the pair of pressure rollers. The welding device may include a movement device configured to move the pair of pressure rollers upstream with respect to the web and the strip member during pause or stop of feed. Alternatively, the feed device may pause or stop the web and the strip member after retracting the web and the strip member by a certain length.
Claims8
A welding device for welding a web and a continuous strip member to each other, the welding device comprising:
- a pair of pressure members opposing each other for pressurizing the web and the continuous strip member;
- a feed device configured to intermittently or continuously feed the web and the continuous strip member in a longitudinal direction of the web and the continuous strip member through the pair of pressure members in a state in which the web and the continuous strip member are superposed on each other;
- a laser device configured to irradiate the web or the continuous strip member with a laser beam at a position upstream of the pair of pressure members so as to melt the web or the continuous strip member with the laser beam for welding of the web and the continuous strip member;
- and
- a movement device configured to move the pair of pressure members upstream with respect to the web and the continuous strip member during pause or stop of feed of the web and the continuous strip member so as to weld the web and the continuous strip member to each other.
A welding device for welding a web and a continuous strip member to each other, the welding device comprising:
- a pair of pressure members opposing each other for pressurizing the web and the continuous strip member;
- a feed device configured to intermittently or continuously feed the web and the continuous strip member in a longitudinal direction of the web and the continuous strip member through the pair of pressure members in a state in which the web and the continuous strip member are superposed on each other;
- and
- a laser device configured to irradiate the web or the continuous strip member with a laser beam at a position upstream of the pair of pressure members so as to melt the web or the continuous strip member with the laser beam for welding of the web and the continuous strip member,
- the feed device being further configured to pause or stop the web and the continuous strip member after retracting the web and the continuous strip member by a certain length so as to weld the web and the continuous strip member to each other.
A welding method for welding a web and a continuous strip member to each other, the welding method comprising:
- intermittently feeding the web and the continuous strip member in a longitudinal direction of the web and the continuous strip member through a pair of pressure members in a state in which the web and the continuous strip member are superposed on each other;
- irradiating the web or the continuous strip member with a laser beam at a position upstream of the pair of pressure members to melt the web or the continuous strip member with the laser beam for welding of the web and the continuous strip member;
- and
- during a pause phase of an intermittent feed cycle, moving the pair of pressure members upstream from a reference position with respect to the web and the continuous strip member such that the web and the continuous strip member are pressurized by the moving pair of pressure members to be welded to each other and moving the pair of pressure members back to the reference position.
Dependencies are inferred from the claim text.