Resin-sealing method
AssigneeYamaha Robotics Co., Ltd.
InventorTakashi Saito
Life of this patent
Estimating the term…
Abstract
There is provided a resin-sealing apparatus that supplies an appropriate amount of sheet-shaped resin for each workpiece, thereby improving the molding quality of a molded product without production of resin dust, such that no redundant resin is produced on a molded product. The resin-sealing apparatus includes a resin supply part that supplies a sheet-shaped resin by cutting out an amount of sheet-shaped resin appropriate for one-time compression molding from a long resin sheet formed to have a predetermined width and a predetermined thickness depending on an amount of resin required for each workpiece, and a transport part that transports the appropriate amount of sheet-shaped resin supplied by the resin supply part to a sealing mold.
Claims12
A resin-sealing method for carrying a sheet-shaped resin to be compression molded and a workpiece having an electronic component mounted on a plate-shaped member into a sealing mold, and performing compression molding, the resin-sealing method comprising:
- a step of acquiring workpiece information on a mounting ratio of the electronic component mounted on the plate-shaped member or a total volume of the electronic component for each workpiece which is supplied from a workpiece supply part;
- a step of calculating an amount of resin required for each workpiece from the workpiece information;
- a resin supplying step of supplying the sheet-shaped resin to be compression molded by cutting out an appropriate amount of sheet-shaped resin to be compression molded into a predetermined shape corresponding to a shape of the workpiece without redundancy or deficiency for one-time compression molding over an entire periphery from a long resin sheet formed to have a predetermined thickness, the long resin sheet being unwound by a resin supply part;
- a step of measuring an amount of the sheet-shaped resin to be compression molded cut out by the resin supply part by a measurement stage arranged on an upstream side of the sealing mold before the sheet-shaped resin to be compression molded is carried into the sealing mold, wherein after a measurement, the whole sheet-shaped resin to be compression molded is completely discarded in a case that the sheet-shaped resin to be compression molded is measured to be out of a range of the appropriate amount and another sheet-shaped resin to be compression molded is supplied by the resin supply part before the sheet-shaped resin to be compression molded is carried into the sealing mold;
- a step of providing and holding a film on a resin feeding hole formed in a transport tool;
- a step of dropping the sheet-shaped resin to be compression molded on the film held by the resin feeding hole;
- a step of carrying the transport tool that holds the film and the sheet-shaped resin to be compression molded into the sealing mold;
- and
- a step of carrying the workpiece into the sealing mold and clamping and compression-molding the workpiece, the film and the sheet-shaped resin to be compression molded.
A resin-sealing method for carrying a sheet-shaped resin to be compression molded and a workpiece having an electronic component mounted on a plate-shaped member into a sealing mold, and performing compression molding, the resin-sealing method comprising:
- a step of acquiring workpiece information on a mounting ratio of the electronic component mounted on the plate-shaped member or a total volume of the electronic component for each workpiece which is supplied from a workpiece supply part;
- a step of calculating an amount of resin required for each workpiece from the workpiece information;
- a resin supplying step of supplying the sheet-shaped resin to be compression molded by cutting out an appropriate amount of sheet-shaped resin to be compression molded by a predetermined length without redundancy or deficiency for one-time compression molding for each workpiece from a long resin sheet formed to have a predetermined width and a predetermined thickness, the long resin sheet being unwound by a resin supply part;
- a step of measuring an amount of the sheet-shaped resin to be compression molded cut out by the resin supply part by a measurement stage arranged on an upstream side of the sealing mold before the sheet-shaped resin to be compression molded is carried into the sealing mold, wherein after a measurement, the whole sheet-shaped resin to be compression molded is completely discarded in a case that the sheet-shaped resin to be compression molded is measured to be out of a range of the appropriate amount and another sheet-shaped resin to be compression molded is supplied by the resin supply part before the sheet-shaped resin to be compression molded is carried into the sealing mold;
- a step of providing and holding a film on a resin feeding hole formed in a transport tool;
- a step of dropping the sheet-shaped resin to be compression molded on the film held by the resin feeding hole;
- a step of carrying the transport tool that holds the film and the sheet-shaped resin to be compression molded into the sealing mold;
- and
- a step of carrying the workpiece into the sealing mold and clamping and compression-molding the workpiece, the film and the sheet-shaped resin to be compression molded.
Dependencies are inferred from the claim text.