Forming die for forming a head on a rope

A forming die for forming a head on a rope includes a first die block provided with a first die cavity which is provided with at least one first clamping rib, and a second die block provided with a second die cavity which is provided with at least one second clamping rib. Thus, the second clamping rib of the second die block is movable to abut the respective first clamping rib of the first die block to form an annular clamping rib which presses the head of the rope to form an annular clamping groove in a peripheral wall of the head so that the head is fixed on the rope closely by compression of the annular clamping groove to prevent the head from being detached from the rope due to a larger pulling force.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a forming die and, more particularly, to a forming die for forming a head on a rope.

2. Description of the Related Art

A rope has two opposite ends each provided with a head made of a flexible sheet plate. The head has an annular shape and is enclosed around the peripheral wall of each of the two opposite ends of the rope so that each of the two opposite ends of the rope is clamped and bound by the head. However, the head is mounted on each of the two opposite ends of the rope by bonding or coating so that the head is easily detached from each of the two opposite ends of the rope due to a larger pulling force.

BRIEF SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a forming die for forming a head on a rope, comprising a support base, a first die block mounted on the support base and having a side provided with a first die cavity which is provided with at least one first clamping rib, and a second die block movably mounted on the support base and having a side provided with a second die cavity which is provided with at least one second clamping rib aligning with the first clamping rib of the first die cavity of the first die block.

The primary objective of the present invention is to provide a forming die for forming a head on a rope, wherein the head is combined with the rope solidly and tightly without incurring detachment between the head and the rope.

Another objective of the present invention is to provide a forming die for forming a head on a rope, wherein each of the second clamping ribs of the second die block is movable to abut the respective first clamping rib of the first die cavity of the first die block to form an annular clamping rib which presses the head of the rope so as to form an annular clamping groove in a peripheral wall of the head of the rope so that the head is fixed on the rope closely by compression of the annular clamping groove to prevent the head from being detached from the rope due to a larger pulling force.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially toFIGS. 1-3, a forming die for forming a head on a rope in accordance with the preferred embodiment of the present invention comprises a support base70, a first die block80mounted on the support base70and having a side provided with a first die cavity81which is provided with at least one first clamping rib82, and a second die block90movably mounted on the support base70and having a side provided with a second die cavity91which is provided with at least one second clamping rib92aligning with the first clamping rib82of the first die cavity81of the first die block80.

The first die cavity81of the first die block80has a substantially semi-circular cross-sectional profile and is provided with a plurality of first clamping ribs82. Each of the first clamping ribs82of the first die block80has a substantially semi-annular cross-sectional profile and protrudes radially and outwardly from a peripheral wall of the first die cavity81.

The second die block90is movable to abut the first die block80. The second die cavity91of the second die block90has a substantially semi-circular cross-sectional profile and is movable to abut the first die cavity81of the first die block80to form a circular die cavity to receive a rope50and a flexible sheet plate600. The second die cavity91of the second die block90is provided with a plurality of second clamping ribs92. Each of the second clamping ribs92of the second die block90has a substantially semi-annular cross-sectional profile and protrudes radially and outwardly from a peripheral wall of the second die cavity91. Each of the second clamping ribs92of the second die block90is movable to abut the respective first clamping rib82of the first die block80to form an annular clamping rib.

The forming die further comprises a cutter83movable between the first die block80and the second die block90to traverse the first die cavity81of the first die block80and the second die cavity91of the second die block90. The first die block80is provided with a first guide channel84traversing the first die cavity81to guide movement of the cutter83, and the second die block90is provided with a second guide channel93traversing the second die cavity91of the second die block90and aligning with the first guide channel84of the first die block80to guide movement of the cutter83.

The support base70is provided with a passage71to allow passage of the flexible sheet plate600which is located between the first die cavity81of the first die block80and the second die cavity91of the second die block90.

In operation, referring toFIGS. 3-6with reference toFIGS. 1 and 2, the rope50is initially received in the first die cavity81of the first die block80, and the sheet plate600has an upper end enclosed around a periphery of the rope50as shown inFIG. 3. At this time, the sheet plate600has a surface coated with an adhesive to bond the sheet plate600onto the rope50. Then, the second die block90is movable to abut the first die block80as shown inFIGS. 4 and 5to clamp the rope50and the upper end of the sheet plate600between the first die cavity81of the first die block80and the second die cavity91of the second die block90so that the upper end of the sheet plate600forms a head60on the rope50by pressing of the first die cavity81of the first die block80and the second die cavity91of the second die block90. At this time, each of the second clamping ribs92of the second die block90is movable to abut the respective first clamping rib82of the first die block80to form an annular clamping rib which presses the head60of the rope50so as to form an annular clamping groove62in a peripheral wall of the head60of the rope50so that the head60is fixed on the rope50closely by compression of the annular clamping groove62to prevent the head60from being detached from the rope50due to a larger pulling force. Then, the cutter83is movable to traverse the first die cavity81of the first die block80and the second die cavity91of the second die block90and to cut the head60of the rope50. The above-mentioned procedures are repeated again and again so as to form a plurality of ropes50as shown inFIG. 6each having two ends each provided with a head60which has a plurality of annular clamping grooves62.

Accordingly, each of the second clamping ribs92of the second die block90is movable to abut the respective first clamping rib82of the first die cavity81of the first die block80to form an annular clamping rib which presses the head60of the rope50so as to form an annular clamping groove62in a peripheral wall of the head60of the rope50so that the head60is fixed on the rope50closely by compression of the annular clamping groove62to prevent the head60from being detached from the rope50due to a larger pulling force.