US 2006/0150795 A1 · Punching apparatus and punching die used therefor

Abstract

In a punching apparatus comprising: a punching station A for punching a large number of sheet products by a punching die 20 from a long material sheet 1 which is transferred in a horizontal direction; and a take-out station for taking out the sheet product punched by the punching die 20, wherein the punching die 20 has a structure that a blade portion of a tip end peripheral edge of a vertically penetrating die hole is brought into contact with the material sheet 1 under pressure, thereby sequentially punching the sheet products from the material sheet 1 and accommodating the sheet products in the die hole in a laminated state, and the take-out station includes an extrusion pusher for pushing out the sheet products which are accommodated in the laminated state from the die hole 28, the punching die is disposed below a transfer region of the material sheet to prevent the sheet product from falling onto the material sheet 1 from the die hole.

Claims21

Dependent claims

A punching apparatus comprising:

a punching station A for punching a large number of sheet products 90 by a punching die 20 from a long material sheet 1 which is transferred in a horizontal direction;
and
a take-out station B for taking out the sheet product 90 punched by said punching die 20,
said punching die 20 having a structure that a blade portion 202a of a tip end peripheral edge of a vertically penetrating die hole 28 is brought into contact with said material sheet 1 under pressure, thereby sequentially punching the sheet products 90 from the material sheet 1 and accommodating the sheet products 90 in said die hole 28 in a laminated state,
said take-out station B including an extrusion pusher 3 for pushing out said sheet products 90 which are accommodated in the laminated state from said die hole 28, wherein
said punching die 20 is disposed below a transfer region of said material sheet 1.

3 more elements

A punching die for bringing a blade portion 202a of an upper end peripheral edge of a vertically penetrating die hole 28 into contact with a material sheet 1 under pressure, thereby punching a sheet product 90 from the material sheet 1 into said die hole 28, wherein

an inner peripheral wall of said die hole 28 is provided with a plurality of elastic projecting members at distances from one another in a circumferential direction and a vertical direction, each elastic projecting member being engaged with a peripheral edge of said sheet product 90 from below.

Dependencies are inferred from the claim text.

Punching apparatus and punching die used therefor

Life of this patent

Punching apparatus and punching die used therefor

Life of this patent

Abstract

Claims21