JP2007165823A5

JP2007165823A5 -

Info

Publication number: JP2007165823A5
Application number: JP2006140571A
Authority: JP
Filing date: 2006-05-19
Publication date: 2008-07-31
Anticipated expiration: 2026-05-19

Claims

When removing the residual strain remaining in the continuous body of the lead frame subjected to press working by heating and cooling the continuous body,
As a heat treatment apparatus for heating and cooling the continuous body, a first metal belt is wound endlessly between a pair of rollers including a first drive roller and a first driven roller, and is rotated by being pulled with a predetermined tension. And a second metal belt that is wound endlessly between a pair of rollers composed of a second drive roller and a second driven roller, and is rotated by being pulled with a predetermined tension, the first metal belt and the second metal belt. A portion of the metal belt that travels in the direction of the driving roller is superposed at a predetermined contact pressure, and the two metal belts that are superposed use a heating / cooling processing device that travels through the heating region and the cooling region,
A method for producing a continuous body of lead frames, wherein the whole of the continuous body is sandwiched and restrained between the two metal belts, heat-treated, then cooled, and then released.

2. The method of manufacturing a lead frame continuum according to claim 1, wherein the lead frame continuum is preheated alone while applying tension, and subsequently supplied to the heating region.

A plurality of gripping means composed of a pair of backup rollers are provided along the two metal belts that are superimposed, and the two metal belts that are overlapped are sandwiched between the pair of backup rollers that constitute the gripping means. The method for producing a lead frame continuum according to claim 1 or 2, wherein a predetermined contact pressure is applied.

The lead frame according to any one of claims 1 to 3, wherein a region including the first heating roller used as the first driven roller and a second heating roller used as the second driven roller and the vicinity thereof are heating regions. Manufacturing method of continuum.

As a continuum, a continuum that runs in a direction different from the running direction of the two metal belts that are superimposed is used , and one side of the continuum so that the continuum can be supplied between the two metal belts. The lead frame continuous according to any one of claims 1 to 4, wherein the running direction of the continuous body is changed by sliding the metal belt on a first driven roller or a second driven roller that is slidably contacted with one of the metal belts. Body manufacturing method.

In addition to the first heating roller used as the first driven roller and the second heating roller used as the second driven roller, a third heating roller is provided,
As a continuum , using a continuum that runs in a direction different from the running direction of the two metal belts that are superimposed, after running one surface side of the continuum in contact with the surface of the third heating roller, In order to supply the continuous body between two metal belts, the continuous surface of the continuous body is slidably brought into contact with the first driven roller or the second driven roller which is slidably contacted with one side of the metal belt. The manufacturing method of the continuous body of the lead frame as described in any one of Claims 1-4 which changes the running direction of a body.

A heating and cooling treatment apparatus for removing residual strain remaining in a continuous body of a lead frame subjected to press working by heating and cooling the continuous body,
A first metal belt wound endlessly between a pair of rollers composed of a first drive roller and a first driven roller, and rotated by being pulled with a predetermined tension;
A second metal belt that is wound endlessly between a pair of rollers composed of a second driving roller and a second driven roller and is rotated by being pulled with a predetermined tension;
The portion of the first metal belt that travels in the direction of the first drive roller and the portion of the second metal belt that travels in the direction of the second drive roller are overlapped at a predetermined contact pressure,
The two metal belts can travel through the heating region and the cooling region so that the whole continuous body supplied between the two metal belts stacked can be restrained and heated and cooled. An apparatus for heating and cooling a continuum of lead frames, wherein the apparatus is provided.

A preheating unit that preliminarily heats the continuum supplied to the heating region is provided immediately before the heating region, and a tension applying roller that applies tension to the continuum passing through the preheating unit is provided. The apparatus for heating and cooling a continuous body of lead frames according to claim 7.

A plurality of gripping means composed of a pair of backup rollers is disposed along the two metal belts that are superposed, and the two metal belts are arranged between the pair of backup rollers constituting the gripping means. 9. The heating / cooling processing apparatus for a continuous body of lead frames according to claim 7, wherein the two metal belts are sandwiched so as to be overlapped by contact pressure.

The lead frame according to any one of claims 7 to 9, wherein a region including the first heating roller used as the first driven roller and a second heating roller used as the second driven roller and the vicinity thereof are heating regions. Heating / cooling treatment equipment for continuum.

The first driven roller or the second driven roller travels along the surface of the first driven roller or the second driven roller on one surface side of the continuous body that travels in a direction different from the traveling direction of the two metal belts overlapped. The lead frame continuous body heating / cooling according to any one of claims 7 to 10, which is also a guide roller that changes the traveling direction of the continuous body to a direction in which the continuous body can be supplied between two metal belts. Processing equipment.

In addition to the first heating roller used as the first driven roller and the second heating roller used as the second driven roller, a third heating roller is provided,
Two pieces of metal that are overlapped by running along the surface of the first driven roller or the second driven roller on the other side of the continuous body that has run on the surface of the third heating roller in contact with one side. The first heating roller, the second heating roller, and the third heating roller so that a continuous body traveling in a direction different from the traveling direction of the belt can be supplied between the two metal belts by changing the traveling direction. The heating / cooling apparatus of the continuous body of a lead frame as described in any one of Claims 7-11 with which is arrange | positioned.