TH14618A - Methods and equipment for making screws, rivets, or similar parts. - Google Patents

Abstract

Procedure and Finishing Machine for Making Screws, Rivets or Similar Products In the procedure for making screws, rivets or similar products from wire (6), the wire (6) is moved toward a movable cutting sleeve (24) in the receiving position, followed by the movable cutting sleeve (24) being moved significantly from the receiving position in a direction perpendicular to the axis of the wire to separate the blank from the wire (6). The movable cutting sleeves (24, 25) are then moved together with the separated blank (26) toward the discharge position, where the die (27) is partially moved the blank (26) into the die (16) and compresses the blank (26) sufficiently to extrude the blank by flow cooling. In the area between the die (16) and the movable cutting sleeve (25), the movable cutting sleeve (24, 25) is attached to the conveyor (15) and can be moved from the receiving position (14) to the discharge position. The die cutter (27) is partially moved into the die (16) and compressed sufficiently to extrude the blank (26) by flow. The blank (49) is placed in the die (50) and the headed end is subjected to pressure on or against the tool side (52), while the dolly (55) remains attached to the die (50). At the other end of the die, the blank (49) is subjected to pressure. The pusher, which causes the material to flow into the blank (49), dolly (55) will have a notch (56) that aligns with the through hole of the die (50). Initially, a short pusher pin (60) will release the blank (57) from the die by moving the blank (57) a relatively short distance, and a crystal pin (62) will be used.

Claims (2)

1. The procedure for making screws, rivets, or similar workpieces from wire is to move them through this stationary cutting sleeve to a movable cutting sleeve (24) which is constructed to be suitable for separating the wire blank from the wire (6) in the subsequent cutting process for further shaping, and where the movable cutting sleeves (24, 25) are attached to a conveying device (15) in a way that allows this movable cutting sleeve to be moved from a receiving position opposite to the stationary cutting sleeve (14) to a discharge position opposite to the die (16) between such die and the rivet (27) which is constructed. It is designed to be suitable for partially moving the blank into the die (16) and to compress the blank (26) sufficiently to extrude the blank by flow cooling in the area between the die (16) and the movable squeegee sleeve (25). It is unique because it consists of at least two movable squeegee sleeves (24, 25) which are arranged in a rotating squeegee platform (15) in such a way that when one squeegee sleeve is in the receiving position, the other is in the releasing position at the same time. 2. The machine pursuant to claim 1 is characterized by a number of movable cutting sleeves (24, 25) arranged in such rotating cutting platform (15) which can be positioned in a number of ways corresponding to the number of movable cutting sleeves (24, 25) (Clause 2, page 1, Figure 26).