JPH0919717A - Laying type wire rod winding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To wind a wire rod at a high speed without being anxious about troubles of the fatigue break of a hollow shaft, the wear and breakage, etc., on a bearing of the hollow shaft by controlling the abnormal vibration at the time of the high speed operation, and also to precisely control the diameter of coil of the wire rod being discharged from a cone head by smoothly rotating the cone head. SOLUTION: This device is provided with a hollow shaft 3 to rotate and be driven around the axial center, a cone head 9 attached on the top end of the hollow shaft 3, wire rod guide tube 11 whose rear part is installed inside the hollow shaft 3 through a attaching body 11 and whose fore part is installed on the face of external circumference of the cone head 9 being along in a spiral like, and a cone head cover 16 installed on the outside of the cone head 9. Then, a bearing 18 is interposed between the face of external circumference of the cone head 9 and the cone head cover 16 and the cone head 9 is supported freely rotating with the cone head cover 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laying type wire winding machine, and more particularly to a horizontal laying type wire winding machine suitable for high speed winding as wire rolling equipment.

[0002]

2. Description of the Related Art A horizontal laying type wire rod winding machine will be described with reference to FIG. A hollow shaft 24 is rotatably supported on the housing 21 by front and rear bearings 22 and 23 (the upstream side in the traveling direction of the wire being the front) so as to be rotatable around the shaft core.
24 is driven by a motor (not shown) via a bevel gear transmission 25.

A cone head 26 is attached to the tip of the hollow shaft 24, and a wire rod guide pipe 27 is provided on the outer peripheral surface of the cone head 26 in a spiral shape. The rear part of the wire rod guide pipe 27 penetrates inward from the rear part of the cone head 26, and the rear part is provided inside the hollow shaft 24 via a mounting body 28. In the figure, 29 is an inlet guide inserted into the hollow shaft 24, and 30 is a cone head cover provided outside the cone head 26.

In the above structure, the wire rod 31 is introduced into the inlet guide 29, is further conducted into the wire rod guide pipe 27, is spread in a spiral shape on the conveyor not shown and is discharged, and then is conveyed to the conveyor. It is heat-treated by a heat treatment apparatus connected thereto and shaped into a coil.

[0005]

In the conventional laying type wire rod winding machine described above, a large mass cone head having a spiral wire rod guide pipe 27 at the tip of the hollow shaft 24 is provided.
Since the 26 is overhung and installed,
When operating at 0 m / sec or more (hollow shaft 2000 rpm or more), harmful vibration is generated in the hollow shaft 24, which causes: Fatigue failure of the hollow shaft 24. : Abnormal wear and damage of the bearings 22 and 23 of the hollow shaft 24. : Cone head 26 and cone head cover
Since the minimum clearance of 30 contacts, the peripheral speed of the cone head 26 changes and it becomes impossible to control the diameter of the wire rod coil to be discharged. : The timing of contact between the cone head cover 30 and the discharged wire rod coil also increases, and a flaw easily occurs. There are concerns about such problems.

The present invention has been made in view of the above circumstances, and an object thereof is to prevent abnormal vibration during high-speed operation as described above and to wind a wire at a high speed without fear of trouble. The present invention provides a laying-type wire rod winding machine.

[0007]

In order to achieve the above object, the laying type wire rod winding machine according to the present invention is provided with a hollow shaft which is driven to rotate around a shaft core and a tip of the hollow shaft. A cone head, and a wire rod guide pipe whose rear portion is provided inside the hollow shaft through a mounting body and whose front portion is arranged along the outer peripheral surface of the cone head in a spiral shape, and outside the cone head. In a laying type wire rod winding machine provided with a provided cone head cover, a bearing is interposed between the outer peripheral surface of the cone head and the cone head cover, and the cone head is rotatably supported by the cone head cover. is there.

In the laying type wire rod winding machine, the bearing may be a slide bearing.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front sectional view of a laying type wire rod winding machine according to the present invention.

In the drawing, a housing 2 is fixed to a machine base 1, and a hollow shaft 3 having a substantially horizontal axis is rotatably provided around the axis by front and rear bearings 4 and 5 in the housing 2. It is supported.

The hollow shaft 3 can be driven to rotate about its shaft center by a motor (not shown) via a bevel gear transmission 6 provided in an intermediate portion thereof. An inlet guide pipe 8 attached to the lid 7 of the housing 2 is inserted in the rear portion of the hollow shaft 3 with the shaft core of the hollow shaft 3 as a common shaft core, and at the tip of the hollow shaft 3. A hollow cone-shaped cone head 9 is attached with the axis of the hollow shaft 3 as a common axis. Further, a mounting body 10 is provided inside the hollow shaft 3 following the inlet guide pipe 8, and a wire rod guide pipe is provided on the mounting body 10 along the outer peripheral surface of the cone head 9 in a spiral shape. 11 rear mounted.

The wire rod guide pipe 11 has an inlet 12 at the rear portion thereof which opens as a common axis with the inlet guide pipe 8 and reaches the discharge end 13 and is formed in a curved shape (helical shape). The discharge end 13 is fixed to the tip outer peripheral surface of the cone head 9 by a clamp 14. A cylindrical body 15 is attached to the outer periphery of the clamp 14 on the outer peripheral surface of the tip of the cone head 9, and a tip of a cone head cover 16 attached to the machine base 1 so as to cover the outer periphery of the cylinder 15 and the cone head 9. A slide bearing metal 17 is attached between the inner circumference and a slide bearing 18 to form a slide bearing 18.

Therefore, in the above structure, the hollow shaft 3 and the cone head 9 provided at the tip of the hollow shaft 3 are supported by the bearings 4 and 5 and the slide bearing 18 at three points. Harmful vibrations such as core run-out of the cone head 9 that is overhung on the
As a result, there is no fear of causing troubles such as fatigue damage of the hollow shaft 3 and abnormal wear and damage of the bearings 4 and 5. Further, since the cone head 9 rotates smoothly, the diameter of the wire rod coil discharged from the cone head 9 can be controlled with high accuracy. Furthermore, the wire coil discharged from the cone head 9 does not come into contact with the cone head cover, and the occurrence of flaws is reduced.

In the above embodiment, the most preferable slide bearing 18 is used as the bearing, but the present invention is not limited to this example, and a rolling bearing can be used. However, for rolling bearings, D
_While there are cases where it cannot be used at high speeds beyond the mn value limit, there are no such concerns with plain bearings.

[0015]

As described above, the laying-type wire winding machine according to the present invention can suppress abnormal vibration during high-speed operation, such as fatigue fracture of the hollow shaft, wear and damage of the bearing of the hollow shaft. The wire rod can be wound at a high speed without fear of a problem, and at the same time, since the cone head rotates smoothly, the diameter of the wire rod coil discharged from the cone head can be accurately controlled. Furthermore, since the wire coil discharged from the cone head does not come into contact with the cone head cover, the occurrence of flaws can be reduced.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a laying-type wire winding device according to the present invention.

FIG. 2 is a front sectional view of a conventional example.

[Explanation of symbols]

1: Machine stand 2: Housing
3: Hollow shaft 4,5: Bearing 6: Bevel gear transmission
7: Lid 8: Inlet guide pipe 9: Cone head 1
0: Mounting body 11: Wire guide pipe 12: Inlet 1
3: Discharge end 14: Clamp 15: Cylindrical body 1
6: Cone head cover 17: Bearing metal 18: Sliding bearing

Claims (2)

[Claims] 1. A hollow shaft rotatably driven around an axis, a cone head attached to the tip of the hollow shaft, a rear part provided inside the hollow shaft via an attachment body, and a front part of the cone head. In a laying type wire rod winding machine comprising a wire rod guide pipe provided along the outer peripheral surface of the cone in a spiral shape and a cone head cover provided outside the cone head, the outer peripheral surface of the cone head and the cone A laying-type wire winding machine characterized in that a cone head is rotatably supported by a cone head cover with a bearing interposed between the cone head cover and the head cover. 2. The laying-type wire winding machine according to claim 1, wherein the bearing is a slide bearing.