JP2581184B2 - Roller table device for horizontally opposed forging press - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a roller table device for a horizontally opposed forging press.

[Prior Art] A conventional example of a roller table device of a horizontally opposed forging press will be described with reference to FIG. 5. A plurality of stepped rollers 3 (one in the figure) having a central large-diameter portion 1 and both small-diameter portions 2 are provided. A plurality of shafts 4 at both ends of the stepped roller 3 are horizontally supported by a pair of bearings 6 fixed at intervals to a fixed frame 5 in the direction of the press line. The part 4 projects laterally outward from the bearing 6,
It is connected to a drive shaft 8 of a motor 7 fixed to the fixed frame 5 via a shaft coupling 9.

Above the stepped roller 3, a pressure is applied to both side surfaces of the forged material 10 supported so as to be conveyable above the central large-diameter portion 1, with respect to the center in the width direction of the large-diameter portion 1. A pair of dies 11 of a horizontally opposed forging press, which are horizontally opposed and can be approached or separated at the same time, are provided.

[Problems to be Solved by the Invention] However, the forged material supported on the central large-diameter portion 1
As the both sides of the roller 10 are pressed by the mold 11, the width of the forged material 10 decreases and the thickness in the vertical direction increases, as shown in FIG. Since the height of the support portion of the material 10 is constant, the forged material 10 extends upward, and the upper portion thereof protrudes above the upper portion of the pressing surface of the mold 11, and the forging portion presses the protruding portion. Becomes impossible. Therefore, the forged material 10 cannot be forged into a predetermined shape,
In addition, there arises a problem that the effect of training the protrusion cannot be sufficiently obtained.

In addition, as a result of the decrease in the width of the forged material 10, as shown in FIG. 7, when the mold 11 is separated, the forged material 10 may fall from the large diameter portion 1 to the small diameter portion 2. When the mold 11 is approached in this fallen state, the forged material 10
And the stepped portion 12 of the stepped roller 3, while the stepped roller 3 is supported by the fixed bearing 6, so that the bearing 6 damages the bearing 6 and is There is a problem that the attachment portion 12 is worn.

The present invention has been made in view of the above circumstances, and has been made to be able to forge both side surfaces of a forged material. Also, even if the forged material is pressed between a mold and a stepped portion of a stepped roller, a bearing or the like can be used. An object of the present invention is to provide a roller table device of a horizontally opposed forging press in which a stepped portion is not damaged.

Means for Solving the Problems The present invention provides a central large-diameter portion and both sides under a pair of dies provided so as to be able to forge a material to be forged while facing each other in a horizontal direction and approaching or separating at the same time. A plurality of stepped rollers having a small diameter portion and supporting the forged material so as to be able to be conveyed on the large diameter portion are provided so as to be movable in both the vertical direction and the axial direction. .

[Operation] When the forged material supported on the central large-diameter portion of the stepped roller is forged by a pair of dies which are opposed to each other in the horizontal direction, the width of the forged material decreases and the thickness in the vertical direction increases. When the stepped roller can be moved up and down, by moving the stepped roller downward, the upper end of the forged material can be prevented from protruding above the die pressing surface.

Also, when the forged material falls from the large diameter portion to the small diameter portion, the stepped roller can be moved in the axial direction, so that
By moving the stepped roller in the axial direction, even if the forged material is pressed between the mold and the stepped portion of the stepped roller, the bearing and the stepped portion of the stepped roller are damaged. Can be prevented.

[Embodiment] An embodiment of the present invention will be described below with reference to the accompanying drawings.

1 to 4 show an embodiment of the present invention, and the same components as those shown in FIG. 5 are denoted by the same reference numerals.

FIGS. 1 to 3 show an embodiment of the present invention, in which a central large-diameter portion 1 and both small-diameter portions 2 for supporting a forged material 10 so as to be conveyable.
A plurality of stepped rollers 3 (three in FIG. 3) having horizontal axis are supported by bearing frames 13 at both end shaft portions 4 of the stepped rollers 3, and the bearing frames 13 are fixed to a pit fixing floor 14. A movable floor member 16 that can be raised and lowered by a fixed hydraulic cylinder 15
Support on top.

A locking member 17 is fixed to one side surface of the bearing frame 13 in the axial direction of the stepped roller 3 and an upper fixed floor 18
A locking portion 21 is provided at a front end of a piston rod 20 of a fluid pressure cylinder 19 fixed to the bearing, and the reciprocating motion of the piston rod 20 causes the bearing frame 13 to move on a guide rail on the movable floor member 16.
The locking member 17 is engaged with the locking portion 21 so that the locking member 17 can slide along the axis of the stepped roller 3 along the direction 22.

A plurality of (three in the figure) front flat rollers 24 are provided to supply the forged material 10 to the entrance side (left side in FIG. 3) of the stepped roller 3 and the exit side of the stepped roller 3 (to the left). A plurality (three in the figure) of rear flat rollers 25 for supporting the material 10 to be forged at the same level as the stepped roller 3 during forging are disposed on the right side of FIG. By raising and lowering the upper surface 25 so as to match the large-diameter central portion 1 of the stepped roller 3, the lower surface of the forged material 10 can be held horizontally and run sequentially downstream to perform normal forging.

Reference numeral 23 in the drawing is a bracket fixed to the bearing frame 13 to support the motor 7 that can rotate the stepped roller 3 via the drive shaft 8, the shaft coupling 9, and the shaft portion 4.
Above the step roller 3, a pair of dies 11 of a horizontally opposed forging press having the same configuration as that of the conventional apparatus of FIG. 5 is provided.

As shown in FIG. 1, when both sides of a forged material 10 supported on the central large-diameter portion 1 of the stepped roller 3 are pressed by a mold 11, the width decreases while the thickness in the vertical direction decreases. Increase. Therefore, the stepped roller 3 together with the movable floor member 16 and the bearing frame 13 is lowered by the fluid pressure cylinder 15 as indicated by a two-dot chain line while being pressed. Thereby, forging can be performed by bringing the entire side surfaces into contact with the pressing surface without projecting the upper portion of the forged material 10 above the pressing surface of the mold 11. At this time, the rear flat roller 25 descends so as to be at the same level as the central large-diameter portion 1 of the stepped roller 3 so as not to hinder the transport of the forged material 10.

As shown in FIG. 2, when the forged material 10 falls from the large diameter portion 1 to the small diameter portion 2 and is sandwiched between the mold 11 and the stepped portion 12, the fluid pressure cylinder 19 The forged material 10 is moved between one mold 11 and the stepped portion 12 of the stepped roller 3 by horizontally moving the stepped roller 3 together with the bearing frame 13 in the axial direction as indicated by a two-dot chain line. Bearing frame even when pressed
Damage to the thirteenth bearing and the stepped portion of the stepped roller 3 can be prevented.

FIG. 4 shows another embodiment of the present invention, in which a power transmission shaft 27 is connected to a motor 7 installed on a frame 29 on the floor surface via a shaft coupling 26, and a shaft is provided in the power transmission shaft 27. The spline shaft 28 connected to the joint 9 is slidably fitted. Thus, in this embodiment, the motor 7 is fixed, and the power transmission shaft 27,
Except that the spline shaft 28 is provided, the configuration is exactly the same as that of the above embodiment.

In this embodiment, the bearing frame is
When the stepped roller 3 is moved in the axial direction together with 13, the spline shaft 28 slides with respect to the power transmission shaft 27, and the motor 7 does not move.

In the above-described embodiment, the fluid pressure cylinders 15 and 19 are used as the moving means of the stepped roller 3, but other mechanical or electrical means may be used, and the other points do not depart from the gist of the present invention. Of course, various changes can be made within the range.

[Effects of the Invention] According to the present invention, it is possible to forge the entire forged material into a predetermined shape while providing a forging effect, and to provide various excellent effects that can prevent damage and wear of the roller table device. obtain.

[Brief description of the drawings]

FIG. 1 is a front view of one embodiment of the present invention in which the stepped roller is lowered, FIG. 2 is a front view of one embodiment of the present invention in which the stepped roller is moved in the axial direction, and FIG. AA arrow view of FIG.
Fig. 4 is a front view of another embodiment of the present invention, Fig. 5 is a front view of a conventional apparatus, and Fig. 6 is a case where a forged material is forged on a central large-diameter portion of an end roller by the conventional apparatus. FIG. 7 is a front view when the forged material has fallen to the small diameter portion of the stepped roller by the conventional device. In the drawing, 1 is a central large diameter portion, 2 is a small diameter portion on both sides, 3 is a stepped roller, 10 is a forged material, 11 is a mold, 13 is a bearing frame, and 15,1.
9 denotes a fluid pressure cylinder, and 16 denotes a movable floor member.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-184442 (JP, A) JP-A 62-86942 (JP, U) JP-A 62-109833 (JP, U) JP-A 62-109833 86940 (JP, U)

Claims (1)

(57) [Claims] 1. A large-diameter central portion and small-diameter portions on both sides below a pair of molds provided so as to be able to forge a material to be forged while being horizontally opposed and simultaneously approaching or separating from each other. A roller table device for a horizontally opposed forging press, wherein a plurality of stepped rollers for supporting a material to be forged on a part so as to be conveyable are provided so as to be movable in both the vertical direction and the axial direction.