JP2000263185A - Device for separating billet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely separate billets in melt-welding state by vertically moving a frame body with bottom plate for receiving the billet at the tip part, abutted on a stopper at the lower end part of an inclining chute, overturning the bottom plate at the moving time downward of the frame body, dropping the billet on this plate while preventing the advancing of the following billet, and regulating the upward movement to the following billet. SOLUTION: The two billets fed out with a chute in the melt-welding state heated in a heating device, are stopped by abutting the tip part on the stopper member 30. At this time, the billet B1 at the tip part is supported on the bottom plate 40 of the turning frame body 15. When the turning frame body 15 is forcibly moved downward by extending a cylinder 12 for separation in this stopping state, the billet B1 supported with the turning frame body 12 is moved downward but since the billet B2 on the following side is stopped in advancing by the stopping member 23 and the upward movement is regulated by a regulating member 54, the front and the rear parts of billets are forcibly cut off and the separated billet B1 is dropped with the dead weight by overturning the bottom plate 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a billet separating device provided in a forging press line for separating billets delivered from a billet heating device while being welded to each other.

[0002]

2. Description of the Related Art In an initial step of a forging press line, an object to be forged (a billet) is heated to a high temperature. In many of the lines, an induction heater (an induction heating device) is used as a heating device. An inclined chute is provided on the outlet side (delivery portion) of the induction heater. After a billet continuously supplied from the inlet of the heater is heated to a predetermined high temperature, the billet is intermittently placed on the inclined chute. (Several seconds apart), slides down on the inclined chute and is fed to the position for feeding to the forging press.

However, in some cases, due to cut surfaces and the like, the ends of the front and rear billets may be welded to each other and sent out to the inclined chute in a connected state. In this case, if the billet in the connected state is supplied to the forging press as it is, it may lead to a serious accident. Need to be kept.

As described above, various separation devices have been developed as separation devices for separating billets welded to each other. For example, Japanese Unexamined Utility Model Publication No. 1-109330 discloses that a billet (material) sliding down from a chute is temporarily received in a pocket, and the material is rotated upward from a receiving position by a rotating mechanism using a cylinder. It describes that the supplied billet is separated and the billet is sent to the next process in a vertical position.

[0005] There is a fundamentally different way of thinking about in which step the billet sent out while being welded from the induction heater is separated. For example, when one heating device is arranged in series for one forging press, a billet welded by heating is conveyed to a position just before the forging press, and a supply device (billet) provided at that position is provided. A method of supplying a billet to a forging press using a charger is usually employed. Further, when another process is provided in such an arrangement, for example, when a forging roll is disposed between the heating device and the press, a welding billet separating device is provided in front of the forging roll. It is reasonable to keep.

On the other hand, there is also a layout in which billets are distributed and supplied from a single heating device to a plurality of forging presses according to the type of forged product. In such a case, the billet sent from the heating device is transported by the conveyor while switching the transport direction. Even in this case, it is reasonable to separate the billet at the position sent from the heating device.

In the apparatus described in Japanese Utility Model Laid-Open No. 1-109330, a billet (material) sliding down from a chute is received in a pocket, and the billet is rotated upward from a receiving position by a cylinder-type rotating mechanism. The connected billet is separated and sent to the next process.This device inserts the billet into the cup and separates the billet on the back side by rotating the cup. Since the (part from which the billet comes out) is open, there is a problem that the billet in a welded state cannot be separated. In addition, since the paper is transported in the vertical direction, it is necessary to take measures to prevent the billet from overturning.

Japanese Patent Application Laid-Open No. 8-174133 discloses that a billet (work) welded on a conveyor chain conveyor is stopped by a stopper device, and a welded portion is cut off by a separating means to separate a rear billet. In addition, a device for stabilizing the posture of the billet is described. However, this device stops the billet once,
Slip occurs between the stopped billet and the surface of the chain conveyor, which contradicts the idea of stabilizing the billet, and also causes the problem that the surface of the chain conveyor is worn by the slip. In addition, the method of separating billets on the transport conveyor of the press line is uneconomical in the case of a layout in which a plurality of lines are provided, since a separating device is required for each transport conveyor. Therefore, it is reasonable to separate the billet near the position where the billet is sent from the heating device.

[0009]

SUMMARY OF THE INVENTION Accordingly, the present invention can reliably separate a billet heated by a heating device and sent out by a chute in a welded state, and furthermore, the billet is conveyed in the chute sending direction. An object of the present invention is to provide a separation device having a relatively simple structure that can be changed.

[0010]

In order to solve the above problems, the present invention employs the following configuration. That is, the billet separation device according to the present invention is a billet separation device for separating billets welded and connected to each other when a billet heated by a billet heating device is dropped by an inclined chute and supplied to a forging press. A vertically movable frame having a stopper provided at the lower end portion of the inclined chute, to which the tip of the leading edge billet coming down contacts, and a bottom plate for receiving and supporting the leading edge billet coming into contact with the stopper and stopping. A vertically moving device for forcibly moving the frame from an upper position in a state of being continuous with the inclined chute to a lower position lower than the same, and when the frame moves down, its bottom plate is turned over to Device for dropping the billet held by the bottom plate, and regulation for restricting the upward movement of the billet connected to the rear part of the most advanced billet And wood, is characterized by comprising a blocking member for blocking the advancing of the subsequent billet during downward movement of the frame.

[0011]

The billet heated by the heating device and sent out by the chute in a welded and connected state is stopped by the tip of the billet hitting the stopper. At this time, the most advanced billet is supported by the bottom plate of the frame, and the subsequent billet is positioned below the regulating member. If the frame is forcibly moved down in this stopped state, the most advanced billet supported by the frame moves down, but the rear billet is prevented from moving forward by the blocking member, and is restricted. Since the upward movement is restricted by the member, the front and rear billets are forcibly cut off. The separated state-of-the-art billet is moved down with the frame, then falls by its own weight due to the falling of the bottom plate and is sent downward.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a preferred embodiment of the present invention. 1 and the following drawings illustrate an embodiment of a billet separating device 1 according to the present invention. The billet separating device 1 includes a frame 2 fixed on a floor surface, and a lower portion of the frame has a lateral portion. The bracket 3 is fixed to the projection. A support leg 5 is erected on the upper surface of the bracket 3, and a lower end of the inclined chute 4 is attached to an upper end thereof. The support leg 5 is divided into an upper portion 5a and a lower portion 5b, and is connected and integrated by bolts with the liner 6 interposed therebetween. By changing the thickness of the liner, its height can be adjusted.

The bracket 3 is provided with a discharge chute 7. The discharge chute 7 is for transferring the separated billet to a separate conveyor.
A base plate 9 is fixedly mounted on the upper portion of the frame 2, and various members such as a cylinder 12 constituting a separating device are attached to the base plate 9.

That is, a block 17 is provided integrally with the base plate 9 and a pair of arms 1 is provided from the block.
9, 19 are protruding. A shaft 20 is provided on the arm 19, and the base of the rotating frame 15 is
It is rotatably mounted via a line 0a. The rotating frame 15 has a pair of left and right fan-shaped plates 15 a, 15 a arranged in parallel at a fixed interval, and an arc-shaped portion formed integrally with the two plates and having a tip portion 23 a centered on the shaft 20. And a blocking member 23 which is opened downward as a whole.
5b. The rotating frame 1
5, a connecting block 24 is fixedly mounted on the upper part of the rod 12 of the separating cylinder 12, which is a vertical moving device.
a is connected by a pin 25. The base of the separation cylinder 12 is rotatably supported by a pair of arms 9 a, 9 a projecting from the base plate 9.

The block 17 of the base plate 9 is provided with a through hole 17a in the front-rear direction, into which a rod-shaped stopper member 30 is inserted. A bolt 31 is attached to the rear end of the stopper member 30,
The bolt is inserted through a hole 33a of a support member 33 fixedly provided on the frame 2, and nuts N, N are screwed on both sides thereof. By turning these nuts, the front-back position of the stopper member 30 can be adjusted.

A pair of front and rear arms 35, 35 project from one side surface of the rotary frame 15, and a bottom plate support member 37 is supported by a vertical shaft 36 provided on the arm so as to be rotatable up and down. Have been. The bottom plate supporting member 37 has a bottom plate 4 for covering the groove 15b of the rotating frame 15 from below.
0 is fixed. A rod 45a of an opening / closing cylinder 45 is connected to an end opposite to the bottom plate 40 with a pin supported by the shaft 36 by a pin. Opening / closing cylinder 4
Reference numeral 5 denotes a bottom plate overturning device for rotating the bottom plate 40 up and down, and its base is attached to a support frame 46 that stands upward from the side surface of the rotation frame 15. By expanding and contracting the opening / closing cylinder 45, the bottom plate 40 rotates up and down, and opens and closes the lower opening of the groove of the rotating frame 15.

At a position obliquely above the rotating frame 15, a lower end member 50 of the inclined chute 4 supported by the column 5 is disposed. The lower end member 50 includes a pair of left and right side plates 5.
1, 51 and a bottom member 52 having a triangular groove cross section are formed in a groove shape. Above the groove of the lower end member, a regulating member 54 for regulating the upward movement of the billet is provided at a position slightly higher than the height of the billet sliding down on the bottom member 52.
The restricting member 54 is attached to the long hole 51a of the side plate 51 so as to be adjustable in the vertical position, so that it can adapt to the dimensional change of the billet. When the rotating frame 15 is not rotated downward, the bottom member 5 of the inclined chute is not rotated.
2 and the bottom plate 40 of the rotating frame are arranged on the same inclined line.

Next, the operation of the billet separating device will be described. FIG. 11 schematically shows a layout of a forging press line in which the separating device 1 is installed. The billet sent from the heating device (induction heater) H through the inclined chute 4 is separated by the separating device 1. After that, the sheet is sent by the conveyor 60 in a direction perpendicular to the direction of conveyance of the inclined chute 4 and supplied to the forging press P by the supply device F.

The operation of separating the billet sent from the heating device H in the welded connection state will be described.
First, as shown in FIG. 3, the heated billets B,... Are passed through the inclined chute 4 from the heating device H in a state where the rotating frame 15 is not rotated downward, that is, in an inclined state continuous with the inclined chute 4. Slide down. Then, the tip of the billet B sliding down on the chute is moved to the stopper member 30.
And the billet stops at that position. At this time,
The stopped billet is supported on the bottom plate 40 of the rotating frame. As shown in FIG. 3, when the front and rear billets B1 and B2 slide down in a state of being welded and connected, only the front billet B1 is placed on the bottom plate 40, and the rear billet B2 is a tilted chute. It is in a state of being placed on the bottom member 52.

When the tip (not shown) of the billet is detected by a sensor (for example, a photoelectric sensor) that has come into contact with the stopper member 30 from the state shown in FIGS. The cylinder 12 extends, and the rotating frame 15 rotates downward about the shaft 20 as shown in FIGS. 4 and 7, and the bottom plate 40 becomes substantially horizontal. At this time,
Since the upper portion of the groove portion 15b is covered with the blocking member 23, the billet B1 is pressed downward by the lower surface of the blocking member, and is forcibly moved down together with the rotating frame 15. For this reason, a shearing force acts between the welded billet B2 and the billet B2 on the rear side to separate them. When a sensor (for example, a photoelectric sensor) (not shown) detects that the rotating frame 15 has sufficiently moved down, the opening / closing cylinder 45 serving as the bottom plate overturning device extends to rotate the bottom plate 40 downward. As a result, the billet B1 falls under its own weight and is received by the discharge chute 7. As shown in FIG. 8, the billet B1 received by the discharge chute 7 rolls along an inclined surface 7a inclined in a direction perpendicular to the feeding direction of the inclined chute 4, and is delivered to a separately provided conveyor 60. It is. The billet B1 is conveyed to a predetermined step, for example, the position of a forging press P in the illustrated example by the transport conveyor 60, and is subjected to a predetermined processing by the forging press.

The billet separating device 1 stops the billet sent onto the inclined chute 4 in a welded and connected state at a predetermined position by a stopper member 30 and then forcibly lowers the most advanced billet. As a result, since the shearing force is applied to separate the billet from the rear billet, the welded billet can be surely separated. In addition, since the separated billet is transported while being laid down, a stable posture can be maintained. Furthermore, according to this separating device, the separated billet can be sent out in a direction intersecting with the conveying direction of the inclined chute, so that there is no need to arrange a subsequent forging step or the like in series with the heating line. It became convenient.

After the billet is separated and delivered to the discharge chute 6, the opening / closing cylinder 45 contracts to rotate the bottom plate 40 upward, and the cylinder 12 serving as the vertical movement device also contracts, and 15 is returned to the original state. These operations are controlled and repeated by a control device (not shown). In the illustrated example, the rotating frame 15 for separating the most advanced billet is configured to rotate up and down around the axis 20. It may be configured to move.

[0023]

As is clear from the above description, the billet separating device according to the present invention is simple in structure, but reliably removes a plurality of billets sent from the heating device in a welded and connected state. It can be separated. Moreover, the separated billet is not disturbed in posture,
Since it can be transported in a direction intersecting the conveying direction of the inclined chute, it becomes suitable for installation on an actual forging line.

[Brief description of the drawings]

FIG. 1 is a side view of a billet separating device showing a state before a downward rotation of a rotating frame.

FIG. 2 is a side view of the billet separating device showing a state after the pivot frame is rotated downward.

FIG. 3 is a side view showing a main part in cross section.

FIG. 4 is a side view of a main part in a downward movement state in a cross section.

FIG. 5 is a sectional view taken along the line ZZ in FIG. 1;

FIG. 6 is a sectional view taken along line XX in FIG. 1;

FIG. 7 is a sectional view taken along line YY in FIG. 2;

FIG. 8 is a cross-sectional view illustrating a state in which the bottom plate has fallen.

FIG. 9 is a sectional view taken along line VV in FIG. 1;

FIG. 10 is a sectional view taken along line WW in FIG. 1;

FIG. 11 is a layout diagram of a forging press line.

[Explanation of symbols]

 Reference Signs List 1 billet separation device 2 frame 4 inclined chute 5 support leg 7 discharge chute 9 base plate 12 separation cylinder (downward movement device) 13 shaft 15 rotating frame body 19 arm 20 shaft 30 stopper member 36 shaft 40 bottom plate 45 opening / closing cylinder (bottom plate overturning device) ) 50 Lower end member B billet

Claims (4)

[Claims] 1. A billet separating device for separating billets welded and connected to each other when a billet heated by a billet heating device is dropped by an inclined chute and supplied to a forging press. A vertically movable frame body having a stopper with which the tip of the falling most advanced billet abuts, a bottom plate for receiving and supporting the most advanced billet abutting and stopping on the stopper, and the frame body A vertical movement device for forcibly moving the frame from an upper position continuous with the inclined chute to a lower position lower than the inclined chute, and a billet held on the frame by lowering its bottom plate when the frame moves down And a regulating member for regulating the upward movement of the billet connected to the rear part of the state-of-the-art billet. A billet separating device, comprising: a blocking member for blocking advancement of the billet. 2. The billet separating device according to claim 1, wherein the frame is configured as a rotating frame that rotates up and down around a horizontal axis. 3. The billet separating apparatus according to claim 1, wherein the falling direction of the bottom plate of the frame intersects the conveying direction of the inclined chute. 4. The chute according to claim 1, wherein a chute is provided below the bottom plate of the frame so as to receive the billet falling and feed the billet in a direction intersecting the conveying direction of the inclined chute. Billet separation device.