JP2002249215A - Billet carrying conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyor capable of holding and carrying billets of various outside diameter without changing parts. SOLUTION: In the conveyor which is installed on the line of a forging press to carry a billet B fed from the upstream side to a press body when a traveling belt 3 is traveled, a plurality of chucks 4 which are urged to hold the billet B are provided on the traveling belt 3, and an opening means 5 for press-opening the chucks against the urging force are disposed at the feeding position and the taking-out position of the billet B. When the chucks 4 are press-opened by the opening means 5, the billet B can be delivered. When the press-opening is released, the billet B is held by the chuck 4 irrespective of the outside diameter of the billet, and carried stably in a standing posture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor for conveying a billet supplied from an upstream side to a press body in a forging press line.

[0002]

2. Description of the Related Art Generally, in an automated forging press line, a billet heated by an induction heater is conveyed to a position near a press body by a conveyor, and the billet is gripped by a transfer device and charged into a mold.

[0003] In such a line, when a billet is pressed in an upright state, for example, Japanese Utility Model Publication No. Sho 63
A transport conveyor as described in JP-A-21946 is used.

[0004] As shown in FIG.
The carrier 51 reciprocates along with the rotation of the chain 52 along the frame 50, and a billet receiver 53 for holding a billet B is mounted on the carrier 51.

[0005] As shown in FIG.
The holding cylinder 55 is provided on the pedestal 54.
And is fixed to the carrier 51.

The billet B is inserted into the holding cylinder 55 of the billet receiver 53 in an upright state, and is transported to the vicinity of the press body without falling down. You can enter.

[0007]

However, in the above-described conveyor, when the billets B having different outer diameters are transported, the billet receiver 53 must be replaced.
There is a problem that the replacement takes time.

Accordingly, an object of the present invention is to provide a conveyor which can transport billets having various outer diameters without exchanging parts.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a conveyor which is installed in a forging press line and conveys a billet supplied from an upstream side to a press body as the traveling belt travels. Providing a plurality of chucks urged to sandwich a billet in the traveling zone,
Opening means for opening the chuck against the urging force are disposed at the billet supply position and the billet supply position.

In such a conveyor, the chuck is positioned at the billet supply position, the chuck is pushed open by the opening means, the billet is supplied, and then the pressing of the opening means is released. It is pinched by the chuck and transported stably as the traveling belt travels.

When the billet reaches the take-out position, the chuck is opened by the opening means, the billet is taken out by the transfer device, loaded into the mold, and the billet is conveyed efficiently by repeating this operation sequentially. Can be.

In addition, when the traveling belt travels in one direction, high-speed operation is possible, and the life of the apparatus is improved.

The pawls of the chuck may swing about a support shaft or may move horizontally.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0015] As shown in FIG.
The frame 1 has sprockets 2 at both ends, and an endless chain is wound around these sprockets 2 as a running belt 3.

A plurality of chucks 4 are provided at equal intervals in the traveling belt 3, and an opening means 5 for opening the chucks 4 is arranged on the frame 1 at a supply position and a removal position of the billet B.

As shown in FIGS. 2 and 5, the chuck 4 has a structure in which a pair of claws 7 are provided on a base 6 attached to the traveling belt 3 via a support shaft 8 so as to be swingable. I have.
Each of the claws 7 is urged in a direction in which the chuck 4 closes by a spring 11 interposed between the spring receiver 9 on the base 6 and the pressing member 10.

The opening means 5 is driven by an air cylinder 12 and a push-up plate 1
4 is attached. The push-up plate 14 moves up and down while being guided by the guide rods 15 with the supply and exhaust of the air cylinder 12.

In such a conveyor, billet B
The chuck 4 is positioned at the supply position of
When the air is supplied to 2, the lower portion inside the claw 7 is pushed up by the push-up plate 14, and the chuck 4 is opened against the urging force of the spring 11, as shown in FIG.

In this state, the billet B is supplied to the central portion of the base 6, and when the billet B is confirmed by a sensor such as a photoelectric tube (not shown), the billet B is exhausted from the air cylinder 12 and pushed up as shown in FIG. The plate 14 descends.

As a result, the pawl 7 is pushed by the pressing member 10 urged by the spring 11 to swing, and as shown in FIGS. 4 and 5, the billet B holds the chuck 4 regardless of the outer diameter. And is stably conveyed as the traveling belt 3 travels.

When the billet B reaches the unloading position and the chuck 4 is opened by operating the opening means 5 at that position, the billet B can be taken out by the transfer device and loaded into the mold.

At this time, the subsequent chuck 4 is billet B
The operation of supplying the billet B to the chuck 4 is performed simultaneously with the operation of taking out the billet B. Such an operation is repeated, and the billet B is transported efficiently.

Further, in this conveyor, since the traveling belt 3 travels in one direction, high-speed operation can be performed as compared with the case of reciprocating as in the conventional example, and forward and reverse loads do not act repeatedly. Also, the life of the device is improved.

In the case where the pawl 7 of the chuck 4 swings about the support shaft 8 as described above, the range corresponding to the outer diameter of the billet B is narrow, and as shown in FIG.
The claw 7 may move horizontally, and the movement range may be set large so that the adaptation range with respect to the outer diameter of the billet B can be expanded.

In this case, as shown in FIG. 7, when the spring 11 is made to face the piston rod 13 of the air cylinder 12 coaxially, no moment acts on the claw 7 so that the claw 7 slides smoothly. .

In this embodiment, the billet B is transported in an upright state. However, the same configuration can be applied to a conveyor that transports the billet B sideways.

[0028]

As described above, in the conveyor according to the present invention, the chuck is positioned at the billet supply position,
After the chuck is pushed open by the opening means and the billet is supplied, when the pressing of the opening means is released, the billet is pinched by the chuck regardless of the outer diameter, and the billet is stably conveyed as the traveling belt travels. There is no need to replace parts such as the billet receiver according to the outside diameter of the billet.

When the billet reaches the take-out position, the chuck is opened by the opening means, the billet is taken out by the transfer device and loaded into the mold, and the billet is transported efficiently by repeating this operation sequentially. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a billet conveyor according to the present invention.

FIG. 2 is a longitudinal side view showing a state before the billet is supplied.

FIG. 3 is a longitudinal side view showing a state when the billet is supplied.

FIG. 4 is a longitudinal sectional side view showing a state after the billet is supplied.

FIG. 5 is a plan view of the same chuck.

FIG. 6 is a longitudinal sectional side view showing another example of the above-mentioned chuck and opening means.

FIG. 7 is a longitudinal side view showing another example of the chuck and the opening means of the above.

FIG. 8 is a schematic front view showing a conventional billet transport conveyor.

FIG. 9 is a perspective view showing the billet receiver according to the third embodiment;

[Explanation of symbols]

 B Billet 1 Frame 2 Sprocket 3 Running belt 4 Chuck 5 Opening means 6 Base 7 Claw 8 Support shaft 9 Spring receiver 10 Pressing member 11 Spring 12 Air cylinder 13 Piston rod 14 Push-up plate 15 Guide rod

Claims (4)

[Claims] 1. A conveyor installed on a line of a forging press, which conveys a billet supplied from an upstream side to a press body as the traveling belt travels, wherein a chuck urged so as to sandwich the billet in the traveling belt is provided. A billet transporting conveyor comprising a plurality of billet transporting means, wherein opening means for pushing and opening the chuck against a biasing force are arranged at a billet supply position and a billet removal position. 2. The billet conveyor according to claim 1, wherein the traveling belt travels in one direction. 3. The billet conveying conveyor according to claim 1, wherein the pawl of the chuck swings about a support shaft. 4. The billet conveying conveyor according to claim 1, wherein the claws of the chuck move horizontally.