JPS59298B2 - Billet feeding device in automatic forging press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a billet supply device for guiding a billet leaving a heating furnace or cutting machine to a transfer device in a forging press in an automatic forging line.

In conventional billet feeding devices of this type, the position and shape of the chute are different depending on whether the billet is fed vertically or horizontally, and two chutes are required for both vertical and horizontal charging. In addition, in conventional models, the part that carries the billet into the press is only for vertical feed, or
Is it only for horizontal feed and is it impossible to use it for dual purpose?
Alternatively, even if it were possible, there were problems such as a long setup time and the need to perform large-scale parts replacement work.

For this reason, it was not possible to adequately cope with high-mix, low-volume production. The present invention has been made in consideration of the above-mentioned problems, and is an automatic forging press that can quickly switch between vertical and horizontal feed, and is extremely suitable for high-mix, low-volume production. The present invention aims to provide a billet feeding device.

The configuration will be explained below based on the embodiment shown in the drawings.

In the figure, 1 is a chute that guides the billet 2 in a vertical position, 3 is a receiving section that receives the billet 2, and 4 is a conveying section that transfers the billet 2 from the receiving section 3 to a transfer device of an automatic forging press.

The chute 1 consists of a fixed chute 1a connected to a heating furnace, a cutting machine, and other pre-processing parts, and a guide chute Ib that guides the fixed chute 1a from its tip to the receiving section 3. Both of these chutes 1a and lb are the first and second chutes facing each other.
The base portions of the first and second members 6a, 6b of the guide chute Ib are pivoted to the bracket 8 with pins T, T, and the tip portions are are connected to the forward and reverse threaded portions of a threaded rod 10 which is rotated by a handle 9, and by rotating the handle 9, the guide chute lb is rotated in opposite directions using the pins 7, 7 as fulcrums. The size of the tip opening is adjustable.
A bracket 8 that supports the base of the guide chute lb via pins 7, 7 is pivoted to the press body 11, and a movable bracket 12 that supports the tip of the guide chute 1b is attached to the press body 11. support member 13 fixed to
It is slidably engaged in a direction perpendicular to the operating direction of the conveying section 4.

14 is a first cylinder device supported by the press body 11, and a piston rod 15 of this is connected to the bracket 12. It has been done.

The receiving section 3 includes a billet pedestal 16, a billet rotating device 17, a pedestal 18 on which these are coexisted and movable in parallel in the conveying direction of the conveying section 4, and a second cylinder device 18a that drives the pedestal 18.
It is made up of.

The billet pedestal 16 and the billet rotating device 17 are connected to the pedestal 18.
The pedestal 18 is provided at a predetermined interval in the direction of movement.
As a result of this movement, the respective receiving ports 16a and 17a are selectively positioned above the transport base point 4a of the transport section 4. The billet pedestal 16 is formed in a cylindrical shape,
Hold the billet 2 in the same position from the guide chute 1b,
That is, it is formed into a cylindrical shape with both ends open surrounding a vertical billet 2, and the billet 2 is placed vertically at the transport base point 4a of the transport section 4 and at the transport center 4b of the transport section 4. There is.

The cylindrical portion 16a of the billet pedestal 16 is detachable from the base 16b. The billet rotating device 17 changes the posture of the billet 2 from the guide chute 1b laterally, and its configuration is shown in FIG.

Reference numerals 19a and 19b denote first and second holders facing each other, and bosses 20a and 20b provided thereon respectively are fitted into pins 22 protruding from the base 21 so as to be rotatable in opposite directions.

Both bosses 20a and 20b have arms 23a on both sides.
, 24a, 23b, 24b protrude, and one arm 23b and the other arm 24a are connected by a spring 25, whereby both the holders 19a, 19b are spring-biased in the closing direction. ing. The base 21 is rotatably supported by a pin 27 with respect to a bracket 26.
When both holders 19a, 19b are in an upright state and in a horizontal state, the arms 23a, 24a,
23b, 24b are stoppers 28a, 28b, 29a-1
, 28b-1, both holders 19a, 19b are opened against the spring 25. Holder 1
A plate 29 is located below the base 21 and is detachable from the billet 2.
It can be replaced with one of different thickness depending on the length. An arm 30 projects from the base 21, and a piston rod 32 of a third cylinder device 31 is connected to this. Note that the cylinder device 31 and bracket 26
, stoppers 28a, 28b and 28a-1, 28b-
1 is provided on the pedestal 18 of the receiving section 3. As described above, the billet receiving stand 16 and the billet rotating device 17 that constitute the billet receiving section 3 are spaced apart from each other by a predetermined distance in the conveying direction of the conveying section 4, and one of them is rotated by the cylinder device 18a. The billet pedestal 16 is aligned with the transport center 4b of the transport section 4, but the billet rotating device 17 is positioned above the transport base 4a.
As shown in FIG.
Only being eccentric. The amount of movement of the tip of the guide chute 1b is made equal to this H. This is because, in relation to the center of rotation of the base 21, the center of the receiving port 17a of the billet rotating device 17 and the center of the billet 2 in the longitudinal direction after rotation do not coincide with the conveyance center 4b. It is H. Furthermore, as shown in Fig. 13, the base 2
The center of rotation C of 1 must be set appropriately.
By aligning the center of the rotating billet 2 with the longitudinal center of the billet 2, the center of the receiving opening 17a of the rotating device 17 is aligned with the conveying center 4b. In this case, the guide shoe opening b does not need to be moved. The conveying section 3 consists of a frame 34 that is movable in the carrying direction within the base 33, attachments 35, 35' attached to the frame 34, and a fourth cylinder device 36 that moves the frame 34.

In this embodiment, the attachment 35 is for vertical billet 3.
5 (Fig. 10) and 35' (Fig. 12) for horizontal billets.
There are two types. The attachment 35 for the vertical billet has two fingers 37a, 3 that can be opened and closed in opposite directions.
7b, and a fifth cylinder device 38 that operates this.

The attachment 35' for the transverse billet consists of a receiving member 40 having a receiving groove 39 for receiving the transverse billet 2.

FIG. 14 shows an air piping circuit for the actuator used in the billet feeding device according to the present invention, and shows the air piping circuit for the actuator used in the billet feeding device according to the present invention.
1b, 41c, and 41d are first to fourth electromagnetic switching valves.

The effect will be explained below.

(1) In the case of vertical feeding, the conveying section 4 is equipped with a conveying attachment 35, and the first and second cylinder devices 1
4 and 18a to position the guide chute 1b and billet pedestal 16 above the transport base point 4a of the transport section 4.

When the billet 2 is supplied from the fixed chute 1a in this state, it is vertically fed to the transport base point 4a of the transport section 4 through the fixed chute 1a, the guide chute 1b, and the billet pedestal 16.

Next, the fifth cylinder device 38 is activated to grasp the billet with the vertical billet attachment 35, and then the frame 34 is moved using the fourth cylinder device 36 to transfer the billet 2 from the transfer base point 4a to the transfer device. transport to the delivery position. After this conveyance, the attachment 35 opens the billet 2 and moves the frame 34 backward. This operation is repeated in sequence to convey the vertical billet 2. (2
) In the case of cross-feeding, the billet rotating device 17 of the receiving section 3 is positioned above the conveyance reference point 4a of the conveyance section 4.

At this time, since the billet rotating device 17 is eccentric by an amount H with respect to the center of conveyance, the guide chute 1b is moved by an amount H to bring the tip of the guide chute 1b into alignment with the receiving opening 17a of the billet rotating device 17. Further, the conveying section 4 is equipped with an attachment 35' for lateral feeding. In this state, the billet 2 is supplied from the guide chute 1b.

The billet rotating device 17 vertically receives the billet 2 from the guide chute 1b, rotates the billet 2, turns the billet 2 horizontally, and drops the billet 2 onto the cross-feeding attachment 35' waiting at the transport base point 4a. . Billet rotating device 17
As shown in FIGS. 6 to 8, the holders 19a, 1
When 9b is in the upright state, stoppers 28a and 28b
The arms 23b, 24a are brought into contact with the holders 19a, 1
9b is open, and the billet 2 is attached to both holders 19.
It falls between a and 19b and is supported by the plate 29 in an upright state.

Then, the third cylinder device 31 is extended and both holders 19a
, 19b through 90°. During this rotation, the arms 23b and 24a of both holders 19a and 19b are separated from their respective stoppers and are closed by the springs, so that billet 2 is held by both holders 19a and 19b. holder 19a,
When 19b finishes rotating, the other arms 23a, 24b of both holders 19a, 19b are moved to other stoppers 28a-1, 28a-1, 28a-1, 24b.
8b-1, both holders 19a and 19b open and move,
Billet 2 falls. The conveying section 4 receives the billet 2 laterally and conveys it to a transfer device.

The cylinder device which is the actuator of each of the above operating parts is the first cylinder device.
Each electromagnetic switching valve 41a, 41b, 41c, 41 shown in Figure 4
It operates in conjunction with d.

Since the present invention is as described above, the billet 2 that has been guided down from the chute 1 in a vertical posture is changed into a vertical or horizontal position by the billet holder 16 of the receiving section 3 and the billet rotating device 17. The billets 2 are then supplied to the conveying section 4, where the billets 2 can be sequentially conveyed to the gripping device of the transfer device of the press machine using attachments corresponding to the billets 2 in each posture. Move the receiving part 3 and remove the billet holder 16 and the billet rotating device 1.
By simply changing the position of the billet 2 and the holding device 7, the conveying posture of the billet 2 to the gripping device can be quickly changed to vertical or horizontal, thereby making it extremely suitable for various types of small-scale production.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway front view, Fig. 2 is a schematic plan view showing the arrangement of the receiving part,
Fig. 3 is a side view of the billet pedestal, Fig. 4 is a side view of the billet rotating device, Fig. 5 is an exploded perspective view of the billet rotating device, and Fig. 6 is a view of the holder portion of the billet rotating device before rotation. 7 is a front view thereof, FIG. 8 is a front view after rotation, FIG. 9 is a plan view of the conveying section for vertical feeding, FIG. 10 is a perspective view of the attachment for conveying, and FIG. Figure 12 is a plan view of the conveyance section for cross-feeding, Figure 12 is a perspective view of the attachment for cross-feeding, Figure 13 is an explanatory diagram showing another example of the billet rotating device, and Figure 14 is a diagram of the air piping of the actuator. be. 1 is a chute, 2 is a billet, 3 is a receiving section, 4 is a conveyance section, 16 is a billet pedestal, IT is a billet rotating device, 18
is the pedestal, and 35 and 35' are the attachments.

Claims (1)

[Claims] 1 Billet from previous process such as heating furnace or cutting machine 2
a chute 1 that guides the billet 2 to fall in a vertical position; an attachment 35 for vertical billets located below this chute 1 that supports the billet 2 vertically; and an attachment 35 for horizontal billets that supports the billet 2 horizontally. 35', and a conveyance section 4 in which an attachment mounting section capable of selectively attaching an attachment section 35' can be reciprocated over a distance between the drop point of the chute 1 and the grip device of the transfer device of the press machine;
located between the lower end of the chute 1 and the conveyance section 4,
and a billet holder 16 formed into a cylindrical shape with both ends open surrounding the vertical billet 2, and a billet rotating device 17 that grips the billet 2 in a detachable manner and is rotatable over approximately 90 degrees. are provided on a pedestal 18 spaced apart from each other, and the pedestal 18 is movable so that the billet pedestal 16 and the billet rotation device 17 can selectively face the lower end of the chute 1. A billet feeding device in an automatic forging press characterized by: