JPS5886950A - Shearing device - Google Patents

Abstract

PURPOSE:To obtain a shearing device which is capable of executing pointing and shearing by one process, by constituting so that a turning body which is rotatable in the direction meeting at a right angle with the shaft core of a wire rod, and to which a shearing edge provided with a gear part has been installed, and a turning body provided with a gear part engaged with said gear part are turned in the same or reverse direction centering around the supporting shaft. CONSTITUTION:A wire rod M is inserted into an inserted through-hole 11A of a shearing edge 11, and after that, the first cylinder 15 and the second cylinder 16 are respectively operated in the direction as indicated with an arrow C and an arrow A. As a result, the first turning body 12 is turned in the direction as indicated with the arrow C and the second turning body 13 is turned in the direction as indicated with the arrow A, therefore, the gear part 11A of the edge 11 engaged with the gear part 13b of the turning body 13 is also rotated in the direction as indicated with the arrow A. Accordingly, shear droops MA and MB are formed on the wire rod M by operating the torsion force in the circumferential direction following the shearing force and a rotation of the edge 11 itself, on the side of the wire rod, and they are sheared along a shearing line MN. Subsequently, when a shearing wire rod SM has arrived right under a discharge pin 2, it is discharged to the outside of the system by stopping the operation of cylinders 15, 16, and making the pin 2 descend.

Description

[Detailed description of the invention] The present invention relates to a wire shearing device.

Conventionally, when extruding or heading (including upsetting) a wire rod using a press or a header, the properties of the cut surface (for example, the inclination of the end surface) that occur during the shearing process that is the preliminary process (such as the inclination of the end surface), Steps, etc.) have a negative impact on the dimensional accuracy, surface scratches, mold life, formability, etc. of the molded product, so a pre-applying process is usually inserted between the shearing process and the forming process to correct the cut surface. .

For example, in the mass production process of extrusion molded products using a press, the insertion of an advance process complicates the production process, and the resulting drop in production efficiency has been considered difficult to avoid.

In view of the above-mentioned situation, the purpose of the present invention is to provide a shearing device that performs pre-setting and shearing in a process, and the gist thereof is that it is capable of rotating in a direction perpendicular to the axis/U of the wire rod. A first body equipped with a shearing force having teeth, and a second body equipped with teeth that mesh with the teeth.
The rotating body is equipped with a rotating mechanism that rotates the rotating body in the same direction or in the opposite direction using the support shaft as the middle U.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the structure of a shearing apparatus according to the present invention will be explained below with reference to the accompanying drawings. In the first to third figures, 1 is a supporting goug for the wire M, 2 is a discharge pin, 11 is an autorotation shear force having the insertion hole 11A of the wire M, and the teeth 11B.
The axis D of the shear force 11 is offset from the axis D of the shear force 11. 12
is a first rotating body in which the m shearing force 11 is rotatably mounted on one end and the first cylinder 15 is connected to the other end, and the first cylinder 15 is operated in the direction of the arrows C and D. When this is done, the first rotating body 12 can rotate in the directions of arrows C and D with the support shaft 14 in the center position and D position. 15 is carved with a fan-shaped tooth portion 13B (the arc length is at least equivalent to the circumference of the tooth portion 11B) that meshes with the tooth portion 11B at one end,
When the second cylinder 16 is reciprocated in the directions of arrows A and B with the first rotating body having the III coy cylinder 16 connected to the other end, the second rotating body 13 moves around the fixed shaft 14 at A, Since it rotates in the direction of arrow B, the shear force 11 can also rotate in the directions of arrows A and B.

Next, the operating state of this shear processing device will be explained. That is, when the shear force 11 is in the position shown in FIG. 1, the wire M is inserted into the insertion hole 11A of the shear force 11 by an appropriate means. Next, as shown in FIG. 2, when the first cylinder 15 and the second cylinder 16 are operated in the direction of the arrow C and the direction of the arrow A, the first rotating body 12 moves in the direction of the arrow C, @, and the second rotating body 13 moves in the direction of the arrow A. To rotate in the direction of the arrow, the tooth portion 11A of the shearing force 11 that meshes with the tooth portion 13B of the second rotating body 13 is also A.
Rotates in the direction of the arrow. Therefore, as shown in FIG. 3, in addition to the shear force in the direction perpendicular to the axis/U, torsional force in the circumferential direction is applied to the side surface of the wire rod M due to the rotation of the shear force 11 itself. Sag MA and MB are formed at and sheared along the shear line MN. When the sheared wire M arrives directly below the discharge pin 2 shown in FIG. 4, the operation of the cylinders 15, 16 is stopped, and the discharge pin 2 is lowered by appropriate means to discharge the sheared wire 8M out of the system. Thereafter, after the ejection pin 2 is raised to the original position, the cylinders 15 and 16 are operated again in the direction of the arrow D and the direction of the arrow 'B shown in FIG.
5 rotates in the direction of arrow D and one direction of arrow B to generate shear force 11
When the cylinder 15.1 returns to the position shown in FIG.
6 is stopped, and the same operation as described above is repeated again.

As shown in FIG.
B is provided on the periphery, the sheared surface MD is smooth, and the conventional tip attachment is no longer necessary for the engineering company.

Further, the shearing processing apparatus of the present invention is a press operation in which, for example, shearing is performed in the first step, discharge of the sheared wire is performed in the second step, and 7.2.3 extrusion molding is performed continuously in the 3.4% S step. productivity has improved dramatically.

In addition, in the above embodiment, No. 7. The second moving object is the first
．． Although the second cylinder is used to reciprocate, a cam mechanism, a screw mechanism, etc. can also be used, so the present invention is not limited only to the above embodiment.

[Brief explanation of drawings]

The attached drawings show an embodiment of the present invention, and FIG. 1 shows a state in which a wire is passed through a shearing force, and FIG.
8-T-U line, Fig. 2 is a cross-sectional view taken along the line P-
3 is a cross-sectional view showing the sheared neck of the wire, FIG. 4 is a cross-sectional view showing the discharge state of the sheared wire, and FIG. S is a side view showing the appearance of the sheared wire. 11... shear, shear force, 12... first rotating body, 16.
...Second rotating body, 14...Support shaft, 15.16...
Rotating mechanism (first cylinder, second cylinder), M...wire rod. Patent application Tokai Rika Denki Seisakusho Co., Ltd. Asahi Okuma Sangyo Co., Ltd.

Claims (1)

[Scope of Claims] 1. A first 9-piece body equipped with a shearing force that can rotate in a direction perpendicular to the axis of the wire and has teeth, and a second rotating body that has teeth that mesh with the southern part. A shearing device equipped with a rotation mechanism that rotates the and the same direction or opposite directions with respect to a support shaft. 2. The shear processing device according to claim 1, which is disposed in a press device that continuously performs shearing and ash removal forming processing.