JPH0321794Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a material supply device for a forging machine.

(Prior art and its problems) As this type of material supply device, the technology described in Japanese Patent Publication No. 45-34758 is known. To briefly explain this, as shown in FIGS. 5 to 7, the material is guided into the machine by a chute 21 consisting of four rods 1a. These shots 21
The lower end of is attached to a fixed plate 23 having an opening 22. When in the position shown, opening 22
is aligned with the opening 25 in the reciprocating gate member 24, and the material a (FIG. 7), such as a billet, passes through the two openings 22 and 25 and falls onto the fixed plate 26. The gate member 24 provides a wall 27 to the left side of the material a, and is mounted so as to reciprocate between the solid line position and the shadow line position in FIG. 28 is a gripping device for the material a.

Such a feeding device has the disadvantage that the stroke S between the receiving billet position A (FIG. 5) and the transfer position to the feeder is long, resulting in a long cycle time.

In such a feeding device, a billet a falls from a chute 21 onto a fixed plate 26, and the cut end surface of the billet a has an inclination of 2° to 3°. For this reason, the billet a is not perpendicular to the fixed plate 26 and tends to fall. If the gate member 24 is opened upward in this state, the billet a may fall down. In order to prevent this billet from collapsing, a shutter 29 as shown in Fig. 7 is provided at the billet outlet opening, and when billet a is received, the shutter 29 is closed.
Attempts have also been made to open the shutter 29 when moving the billet A to the feeder transfer position B. In this case, when there is time to spare, such as during low-speed supply, it is possible to secure the opening and closing time of the shutter 29, but in the high-speed supply (30 to 60 spm) range, this opening and closing time must be extremely shortened. Furthermore, there was a problem that the opening/closing time itself could not be secured.

Furthermore, if the shutter fails to open or close, there is a problem that the billet a may jump out or interfere with the supply device.

(Problems to be solved by the invention) The above-mentioned problems of the conventional technology are solved by: 1. Making it possible to feed billets at high speed; 2. Making it possible to keep the attitude of the incoming billets constant; 3. The purpose of this system is to shorten the distance between the incoming billet position and the delivery position to the feeder, and to ensure that billets are fed one by one to the feeder.

(Solution by invention) An upper chute provided at an angle α from the vertical position, a lower chute connected to the upper chute and provided with a retractable stopper, and a pin located below the lower chute on the frame. It is provided so that it can be rotated between an inclined position and a vertical position with an angle α around it.
a reversing metal fitting having a billet holder on the reversing cylinder side; a positioning metal fitting for vertically positioning the billet fixed to the pedestal; and a redirect cylinder having a discharge hole that can be opened and closed by a slide plate connected to the redirect cylinder. The gist of the invention is a forging material supply device consisting of a ute.

(Example) 1 is a transfer unit. 2 is the upper chute fixed to the transfer unit 1, and 3 is the lower chute bolted to the lower part of the upper chute 2, which is at an angle α (≒15~20°) with respect to the vertical line.
It is sloping. Reference numeral 4 denotes a stopper pin-coupled to the rod end of the stopper cylinder 5, which can extend and retract from the lower chute 3 in a direction perpendicular to the axis of the lower chute 3.

Reference numeral 6 denotes a reversing metal fitting which can be rotated by an angle α around a pin 13 at its lower end. A billet holder 7 is integrally attached to the upper end of the reversing fitting 6, and the billet holder 7 is connected to the tip of the rod of the reversing cylinder 9 by a pin 8. Reference numeral 10 denotes a slide plate, which is placed below the reversing fitting on the pedestal 14, one end of which is pin-coupled to the rod end of the reject cylinder 11, and is movable in the axial direction of the rod of the reject cylinder 11. It is.

Reference numeral 10A denotes a pedestal formed on the pedestal 14, which cooperates with the slide plate 10 to form a reversal sliding path for the billet when the slide plate 10 slides toward the pedestal 10A.

12 is a reject chute, which allows unnecessary billets to be discharged. Reference numeral 14 denotes a frame that supports the pivot pin 13 at the lower end of the reversing fitting 6 and also holds the reversing cylinder 9 and the reject cylinder 11. Furthermore, it also serves as a mounting base for a sliding guide 10a (FIG. 2) of the slide plate 10 and a positioning fitting 16, which will be described later. 1
5 is a billet, and 16 is a positioning fitting for the billet provided at a transfer position to the feeder. Reference numeral 17 is a stopper that determines the inclination position of the reversing metal fitting 6.

(Function) When the stopper cylinder 5 is left open, the billet 15 is guided by the slopes a and b of the upper chute 2 and the lower chute 3 at an angle α and falls. Then, it falls onto the slide plate 10 shown in FIG. 1, but at this time it is tilted at an angle α and is about to catch on the billet receiver 7, so it does not fall any further.

The billet 15 on the slide plate 10 is reversed by the angle α by the action of the reversing cylinder 9, so that the billet 15 stands upright at position B in the figure, that is, on the positioning fitting 16.
From there, it is transferred by a transfer device 16a.

When the stopper cylinder 5 is opened after the reversing cylinder 9 starts operating, the billet 15, which was stopped by the stopper 4 in the lower chute 3, falls and stops on the billet receiver 7. In this state, when the reversing metal fitting 6 returns from the inverted state to the original tilted state, the billet 15 falls to point A, and the next reversal of the reversing metal fitting 6 transports the billet 15 to point B. The following items are transported in this manner.

When the billet 15 in the chute 3 is discharged because it is no longer necessary to feed into the press, the stopper cylinder 5 is opened and the reject cylinder 11 and slide plate 10 are operated to the left, and the mount 14
The billet 15 is discharged to the outside from the discharge hole 12a through the redirect chute 12.

(Effect) The chute is tilted at an angle α, and the lower part of the chute is tilted at an angle α to the vertical line at a tilted position A and a vertical position B.
Since a rotatable reversing metal fitting 6 is provided between them, the incoming billets that are guided by the chute and fall are always kept tilted at an angle α and have a stable posture. For this reason, there is no need for a shutter or the like to prevent the product from falling as in the past, and the transport distance between the drop position A from the chute and the transfer position B to the feeder is extremely short. Therefore, high-speed supply became possible.

A redirect chute with a discharge hole is provided at the bottom of the slide plate, making it easy to discharge unnecessary billets.

[Brief explanation of the drawing]

FIG. 1 shows a feeding device according to the present invention. Figure 2 is the first
A sectional view taken along the arrow in the figure. FIG. 3 is a view taken along the arrow in FIG.
FIG. 4 is a view taken along the arrow in FIG. FIG. 5 is a perspective view of a known feeding device. FIG. 6 is a cross-sectional view of FIG. FIG. 7 shows a known example in which a shutter is provided to prevent billets from falling. In the figure: 1...transfer unit,
2... Upper chute, 3... Lower chute, 4...
...Stopper, 5...Stopper cylinder, 6...Reversing fitting, 7...Billet holder, 8...Pin, 9...
Reversing cylinder, 10...Slide plate, 10
A... Cradle, 11... Reject cylinder, 12
... Redirect shoot, 12a ... Discharge hole, 1
3... Pin, 14... Frame, 15... Billet,
16...Positioning bracket, 17...(Reversing bracket)
Stopper, 21... Shoot, 22... Opening, 2
3... Fixed plate, 24... Gate member, 25...
Opening (of gate member), 26...Fixing plate, 27...
...wall, 28... (material) grasping device, 29...
Shutter.

Claims (1)

[Scope of utility model registration request] An upper chute 2 inclined at an angle α from a vertical position, a lower chute 3 having a retractable stopper 4 connected to the upper chute, and a lower chute 3.
The reversing fitting 6 is located below the reversing cylinder 9 and is rotatably provided around the pin 13 on the pedestal 14 between an inclined position A at an angle α and a vertical position B, and has a billet support 7 on the reversing cylinder 9 side. , a positioning metal fitting 16 for vertically positioning the billet fixed to the mount 14, and a discharge hole 12 that can be opened and closed by a slider plate 10 connected to the reject cylinder 11.
A forging material supply device comprising a redirect chute 12 equipped with a.