Abstract: The present invention aims to provide a manufacturing device for heat exchanger fins that is capable of adjusting for differences between a number of punches and a number of through-holes or cutaway portions in an actual product without causing a metal strip to sag or having punches punch the same positions twice.

Abstract: The present invention aims to provide a manufacturing device for heat exchanger fins that is capable of adjusting for differences between a number of punches and a number of through-holes or cutaway portions in an actual product without causing a metal strip to sag or having punches punch the same positions twice.

Abstract: A manufacturing apparatus that manufactures flattened tube fins, in which cutaway portions for inserting flattened tubes for heat exchanging are formed, includes: a press apparatus provided with a mold apparatus that forms the cutaway portions in an unmachined metal thin plate to produce a metal strip; an inter-row slit apparatus cutting the metal strip into predetermined widths to form a plurality of metal strips of a product width; a cutoff apparatus cutting each metal strip of the product width into predetermined lengths; a holding apparatus that holds a plurality of metal strips of the product width that protrude from a downstream side in the conveying direction of the cutoff apparatus; and a stacker apparatus for stacking the flattened tube fins that have been cut into predetermined lengths by the cutoff apparatus.

Abstract: A flattened tube fin manufacturing apparatus includes a press apparatus equipped with a mold apparatus forming cutaway portions into which flattened tubes are inserted to produce metal strips; an inter-row slit apparatus cutting the metal strip, in which the cutaway portions have been formed, into predetermined widths to form a plurality of metal strips of a product width arranged in the width direction; and a cutoff apparatus cutting each metal strip of the product width formed by the inter-row slit apparatus into predetermined lengths. The metal strips of the product width outputted from the inter-row slit apparatus advance into the cutoff apparatus after entering a downwardly sagging state. A support portion that contacts and supports lower surfaces of the metal strips of product width in the downwardly sagging state is also provided.

Abstract: A manufacturing apparatus that manufactures flattened tube fins includes: a press apparatus equipped with a mold apparatus that forms cutaway portions in a thin metal plate to produce a metal strip; an inter-row slit apparatus cutting the metal strip into predetermined widths to form metal strips of a product width; a cutoff apparatus that cuts the metal strips of the product width into predetermined lengths to obtain flattened tube fins; and a metal strip guide which is disposed between the inter-row slit apparatus and the cutoff apparatus and supplies the metal strips of the product width to the cutoff apparatus in a state where the metal strips are separated from one another.

Abstract: A manufacturing apparatus manufactures flattened tube fins in which cutaway portions for inserting flattened tubes for heat exchanging are formed. The manufacturing apparatus includes: a press apparatus with a mold apparatus that forms the cutaway portions in an unmachined metal thin plate to produce a metal strip; an inter-row slit apparatus cutting the metal strip with the formed cutaway portions into predetermined widths to form metal strips of product width arranged in the width direction; and a cutoff apparatus cutting each metal strip of the product width formed by the inter-row slit apparatus into predetermined lengths. A plurality of box-like magazines whose upper surfaces are open are arranged in the width direction downstream of the cutoff apparatus to stack the flattened tube fins formed by the cutoff apparatus cutting into lengths.

Abstract: A corrugate fin manufacturing apparatus includes: a die; a machining punch inserted into a concave in the die to form a rib, wherein on entering the concave, the machining punch does not contact a part of a plate-like body that has not been machined into ribs or does not cause resistance to drawing in of the unmachined part during formation of a rib even when there is contact; a mounting portion provided on the die; and a flat punch provided upstream of the machining punch, wherein when a rib is being formed, the flat punch is positioned to not contact the unmachined part or shaped to not cause resistance to drawing in of the machined part even when there is contact, and wherein after formation of a rib, the flat punch presses down the unmachined part and flattens the unmachined part in combination with the mounting portion.

Abstract: A feeding apparatus feeds a metal strip with cutaway portions in a conveying direction and includes: a reference plate on which the metal strip is placed and in which a slit is formed; moving bodies that are provided below the reference plate and are moved by driving means parallel to the reference plate in the conveying direction; feed pins that advance into the cutaway portions, are provided on the moving bodies so as to move up and down with respect to the reference plate, and pull the metal strip in the conveying direction when the moving bodies move; and at least one guide portion that contacts a side surface on an opposite side of the metal strip to the cutaway portions and guides conveyance of the metal strip.

Abstract: A machining oil applying apparatus that applies machining oil onto a thin metal plate that is being conveyed toward a press apparatus includes: an upper surface applying unit that is impregnated with machining oil, contacts an upper surface of the thin plate and applies the machining oil onto the upper surface; a lower surface applying unit that is impregnated with the machining oil, contacts an lower surface of the thin plate and applies the machining oil onto the lower surface; and an applying unit moving portion that causes the upper surface applying unit and the lower surface applying unit to move reciprocally in a direction perpendicular to a conveying direction of the thin plate, wherein the upper surface applying unit and the lower surface applying unit always move in respectively opposite directions perpendicular to the conveying direction.

Abstract: A feeding apparatus for feeding metal strips in a feeding direction includes a plurality of reciprocating members on which feed pins inserted inside through-holes of the metal strips are provided and a driving means that converts up-down movement of a press apparatus to reciprocal movement in the feeding direction to reciprocally move the reciprocating members. In a predetermined half cycle of an up-down movement of the press apparatus, the driving means moves first reciprocating members in the feeding direction in a state where the feed pins have been inserted into the through-holes and returns other reciprocating members in the opposite direction in a state where the feed pins have been lowered, and in the remaining half cycle, the driving means raises and lowers the feed pins of the reciprocating members.

Abstract: A feeder apparatus includes: a reciprocating block moved reciprocally when a metal strip with collar-equipped through-holes is fed; a moving block disposed above the reciprocating block and connected to a connecting member so as to move in a movement direction of the reciprocating block; a pin block that moves together with the moving block and on which feed pins inserted into the through-holes are provided; an up-down cam unit that moves the pin block up and down; and a cam that is rotated by converting reciprocal movement of the reciprocating block to rotation about the width direction of the metal strip and includes a channel of a predetermined shape, wherein a cam follower inserted into the channel of the cam is provided on the moving block.

Abstract: A manufacturing apparatus that manufactures flattened tube fins includes: a press apparatus equipped with a mold apparatus that forms cutaway portions in a thin metal plate to produce a metal strip; an inter-row slit apparatus cutting the metal strip into predetermined widths to form metal strips of a product width; a cutoff apparatus that cuts the metal strips of the product width into predetermined lengths to obtain flattened tube fins; and a metal strip guide which is disposed between the inter-row slit apparatus and the cutoff apparatus and supplies the metal strips of the product width to the cutoff apparatus in a state where the metal strips are separated from one another.

Abstract: A flattened tube fin manufacturing apparatus includes a press apparatus equipped with a mold apparatus forming cutaway portions into which flattened tubes are inserted to produce metal strips; an inter-row slit apparatus cutting the metal strip, in which the cutaway portions have been formed, into predetermined widths to form a plurality of metal strips of a product width arranged in the width direction; and a cutoff apparatus cutting each metal strip of the product width formed by the inter-row slit apparatus into predetermined lengths. The metal strips of the product width outputted from the inter-row slit apparatus advance into the cutoff apparatus after entering a downwardly sagging state. A support portion that contacts and supports lower surfaces of the metal strips of product width in the downwardly sagging state is also provided.

Abstract: A feeding apparatus feeds a metal strip with cutaway portions in a conveying direction and includes: a reference plate on which the metal strip is placed and in which a slit is formed; moving bodies that are provided below the reference plate and are moved by driving means parallel to the reference plate in the conveying direction; feed pins that advance into the cutaway portions, are provided on the moving bodies so as to move up and down with respect to the reference plate, and pull the metal strip in the conveying direction when the moving bodies move; and at least one guide portion that contacts a side surface on an opposite side of the metal strip to the cutaway portions and guides conveyance of the metal strip.

Abstract: The corrugated fin production equipment is capable of easily separating a corrugated fin having high ribs from a die after forming the ribs. The corrugated fin production equipment comprises: a lower block; an upper block being moved to and away from the lower block; the die being provided to the lower block and having a concave section; a punch being inserted into the concave section so as to form the rib when the lower block and the upper block are closed; and a movable die constituting a part of the die including the concave section, the movable die being upwardly moved above other parts of the die so as to lift a part of the corrugated fin, in which the rib has been formed, from the underside after the lower die and the upper die are closed to form the corrugated fin.

Abstract: A feeder apparatus includes: a reciprocating block moved reciprocally when a metal strip with collar-equipped through-holes is fed; a moving block disposed above the reciprocating block and connected to a connecting member so as to move in a movement direction of the reciprocating block; a pin block that moves together with the moving block and on which feed pins inserted into the through-holes are provided; an up-down cam unit that moves the pin block up and down; and a cam that is rotated by converting reciprocal movement of the reciprocating block to rotation about the width direction of the metal strip and includes a channel of a predetermined shape, wherein a cam follower inserted into the channel of the cam is provided on the moving block.

Abstract: A feeding apparatus for feeding metal strips in a feeding direction includes a plurality of reciprocating members on which feed pins inserted inside through-holes of the metal strips are provided and a driving means that converts up-down movement of a press apparatus to reciprocal movement in the feeding direction to reciprocally move the reciprocating members. In a predetermined half cycle of an up-down movement of the press apparatus, the driving means moves first reciprocating members in the feeding direction in a state where the feed pins have been inserted into the through-holes and returns other reciprocating members in the opposite direction in a state where the feed pins have been lowered, and in the remaining half cycle, the driving means raises and lowers the feed pins of the reciprocating members.

Abstract: A manufacturing apparatus manufactures flattened tube fins in which cutaway portions for inserting flattened tubes for heat exchanging are formed. The manufacturing apparatus includes: a press apparatus with a mold apparatus that forms the cutaway portions in an unmachined metal thin plate to produce a metal strip; an inter-row slit apparatus cutting the metal strip with the formed cutaway portions into predetermined widths to form metal strips of product width arranged in the width direction; and a cutoff apparatus cutting each metal strip of the product width formed by the inter-row slit apparatus into predetermined lengths. A plurality of box-like magazines whose upper surfaces are open are arranged in the width direction downstream of the cutoff apparatus to stack the flattened tube fins formed by the cutoff apparatus cutting into lengths.

Abstract: The equipment for cutting a corrugated fin is capable of sufficiently cutting a corrugated fin having high ribs. The equipment comprises: a movable blade moving into a rib of a corrugated fin and cutting the corrugated fin; and a fixed blade being fixed on the opposite side of the corrugated fin from the movable blade, the fixed blade cutting the rib with the movable blade. A tip section, which has a cutting face capable of cutting the rib with the fixed blade, is provided to a front end of the movable blade. A supporting block supports one of outer faces of the rib, which corresponds to the tip section of the movable blade, and is biased upward, thereby the supporting block is moved downward together with the cut rib, which has been cut and pushed downward by the movable blade, with continuously supporting the outer face of the cut rib.

Abstract: The corrugated fin production equipment is capable of easily separating a corrugated fin having high ribs from a die after forming the ribs. The corrugated fin production equipment comprises: a lower block; an upper block being moved to and away from the lower block; the die being provided to the lower block and having a concave section; a punch being inserted into the concave section so as to form the rib when the lower block and the upper block are closed; and a movable die constituting a part of the die including the concave section, the movable die being upwardly moved above other parts of the die so as to lift a part of the corrugated fin, in which the rib has been formed, from the underside after the lower die and the upper die are closed to form the corrugated fin.