JPS6017617B2 - Rolling equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in rolling and straightening.

Recently, as shown in FIG. 1, after inserting a pair of communication cable cores W, W2 to be connected from one end of a sleeve 13 made by covering a conductive metal pipe 11 with a plastic 12, A wedge-shaped conductive columnar body (pin) 15 having a large number of annular or spiral protrusions 14 on its surface is press-fitted from the other end, and the protrusions 14 are inserted into the insulation coating of the communication cable core wires W, W2. A method for connecting communication cable core wires has been developed which pneumatically and mechanically connects the core wires W, , W2 through the protrusions 14.
An object of the present invention is to provide a cylindrical rolled diamond taka having a large number of protrusions on its surface.

An example of the present invention will be described in detail below with reference to the drawings. Figures 2 and 3 show an example of the present invention, in which a circular die 3 (segment die) is placed opposite a fixed die 3 (segment die) in which a large number of annular or spiral grooves 2 are carved on an arcuate inner surface 1. A rotating die 4 is rotatably supported. This rotating die is constructed such that its center of rotation is offset relative to the fixed die 3. A similar annular or spiral groove 5 is carved on the outer surface of the rotary die in correspondence with the groove 2. A step 7 for forming the head of the material to be rolled is milled on one peripheral edge of the fixed die 3, and an identical step 8 is formed symmetrically opposite to the step 7 of the bracket. The grain is milled on one circumferential twill of the rotating die. Furthermore, the other circumferential twill part of the rotating die has a radius R that is equal to or slightly larger than the rolling center circle (trajectory drawn by the center of rotation) of the rolled material M. The stepped portion 9 of the grain has been threshed. The stepped portion 9 is the rolled material M.
It extends in a direction almost perpendicular to the center line of. However, now the material to be rolled M is supplied from one side of the gap 6 between the inner surface of the fixed die and the outer surface of the rotating die, and
Rotate in the direction of the arrow.

At this time, by selecting the external dimensions of the material to be rolled to an appropriate size in advance, the step portions 7 and 8 can be
(In addition, part M' of the workpiece flows and reaches the vicinity of the step 9. However, since the step 9 rotates around the point ○ with a radius R, the part M' of the workpiece flows ′ is caused to rotate by the stepped portion 9, and in the end, the flow portion M′ becomes part of the flesh of the rolled product and forms the basis of the precise external dimensions of the tail, and the end surface of the tail is flat. As described above, in the present invention, the stepped portion 9 extending to the vicinity of the rotation center circle of the rolled material is formed on one peripheral edge of the rotating die, so that the external dimensions of the rolled material are By appropriately selecting , there is an effect that the tail part of the shark product can be precisely finished without cutting or deburring the tail part of the rolled product after rolling.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of a rolled product obtained by implementing the present invention, FIG. 2 is a front view showing an example of the present invention, and FIG.
The figure is an enlarged cross-sectional view taken along line A--ha in FIG. 2, and FIG. 4 is an explanatory diagram showing a processing situation according to the present invention. In the figure, 2...Groove, 3...Fixed die, 4...
・Rotating die, 5...Groove, 7...Step part, 8...Step part,
9...Step part, R...Rotation center circle of workpiece. Figure 2 Figure 1 Figure 3 Figure 4

Claims (1)

[Claims] 1. A fixed die that has an arcuate inner surface and has a large number of annular or spiral grooves carved on the inner surface, and a fixed die that rotates eccentrically relative to the fixed die, has a circular outer surface, and has a circular outer surface. and a rotary die in which a similar groove is carved in correspondence with the annular or spiral groove, an opposing gap is provided between the inner surface of the fixed die and the outer surface of the rotating die, and one side of the opposing gap is provided. In a rolling device that supplies a material to be rolled from the side and forms an annular or spiral protrusion on the surface of the material as the rotating die rotates, one peripheral side of the inner surface of a fixed die is used. A step is provided protruding from the edge, and an identical step is provided symmetrically to this step to protrude from one circumferential edge of the rotary die, and the rotation center of the material to be rolled is provided on the other circumferential edge. 1. A rolling device comprising a protruding step for forming a tail end face that reaches a height close to a circle and extends in a direction substantially perpendicular to the center line of the material to be rolled.