JPS5856029Y2 - Billet feeding device for forging press - Google Patents

Description

[Detailed description of the invention] The present invention relates to a billet feeding device that guides billets from a heating furnace or cutting machine to a transfer device in a forging press in an automatic forging line. It is possible to selectively perform either vertical feeding, in which the material is shaped and fed to the conveying section, or horizontal feeding, in which the material is shaped horizontally and fed to the conveying section, making it possible to easily switch between vertical and horizontal feeding. An object of the present invention is to provide a billet supply device for a forging press that can improve the workability of the forging press by selectively performing vertical and horizontal punching with a simple operation.

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, 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 shoe Ha connected to a heating furnace, a cutting machine, and other pre-processing parts, and a guide shoe Hb that guides the fixed shoe 1a from its tip to the receiving section 3.

Both shoes and 1a. 1b both face the first and second
Members 5a, 5b.

6a and 6b, the first guide chute 1b
The bases of the second members 6a, 6b are pivotally supported on the bracket 8 by pins 7.7, and the tips are connected to the forward and reverse threaded portions of a threaded rod 10 rotated by a handle 9. By rotating the handle 9, the guide shoe 7.7 is rotated in opposite directions using the pin 7.7 as a fulcrum, and the size of the opening at the tip of the guide shoe 1b can be adjusted.

A bracket 8 that supports the base of the guide shoe Hb via a pin 7.7 is pivoted to the press body 11, and a movable bracket 12 that supports the tip of the guide shoe 1b is attached to the press body 11. It is slidably engaged with the fixed support member 13 in a direction perpendicular to the operating direction of the conveying section 4.

A first cylinder device 14 is supported by the press body 11, and a piston rod 15 thereof is connected to the bracket 12.

The receiving section 3 includes a billet pedestal 16, a billet rotating device 17, a pedestal 18 which is opened to allow movement in parallel in the transport direction of the transport section 4, and a second cylinder device 18a that drives the pedestal 18.
It consists of

The billet pedestal 16 and the billet rotation device 17 are mounted on the pedestal 18.
The pedestal 18 is provided at a predetermined interval in the direction of movement of the
As a result of this movement, the respective receiving ports 16 a and 17 a are selectively positioned above the transport base point 4 a of the transport section 4 .

The billet pedestal 16 is formed in a cylindrical shape, and is configured to take the billet 2 from the guide chute 1b in its original position, that is, withdraw it, and feed it into the transport base point 4a of the transport section 4 and the transport center 4b of the transport section 4. It has become.

The cylindrical portion 16a of the billet pedestal 16 is detachable from the base 16b.

The billet rotation device 17 changes the posture of the billet 2 from the guide chute 1b laterally, and its configuration is as follows.
It is as shown in the figure.

19a and 19b are first and second holders facing each other,
The bosses 20a and 20b provided on each base 2
It is fitted into a pin 22 protruding from 1 so as to be rotatable in opposite directions.

Both bosses 20a and 20b have arms 23a on both sides.
, 24 a , 23 b , 24 b protrude 7, one arm 23 b and the other arm 24 a
The two holders 19a and 19b are connected by a spring 25, thereby biasing the holders 19a and 19b in the closing direction.

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, 2
4 a, 23 b, 24 b are stoppers 28 a, 28 b
, 28a 1, 28b-1 and both holders 19
a, 19b are opened against a spring 25.

A plate 29 is located below the holder 19a, 19b and is detachable from the base 21, and can be replaced with a plate 29 having a different thickness depending on the length of the billet 2.

An arm 30 is provided protruding from the base 21, and a third
The piston rod 32 of the cylinder device 31 is connected.

Note that the third cylinder device 31 and the bracket 26,
Stoppers 28a, 28b and 28a-1, 28
b1 is provided on the pedestal 18 of the receiving portion 3.

Note that the billet holder 1 constituting the billet receiving section 3 described above
6 and the billet rotating device 17 are connected to the conveying section 4 as described above.
are spaced at a predetermined interval in the conveyance direction, and one of the cylinders is positioned above the conveyance base point 4a of the conveyance section 4 by the second cylinder device 18a, and the billet pedestal 16 is positioned above the conveyance base point 4a of the conveyance section 4. However, as shown in FIG. 4, the center position of the receiving port 17a of the billet rotating device 17 is eccentric by H toward the rotation center of the base 21 with respect to the transport center 4b. has been done.

The amount of movement of the tip of the guide shoe Hb is made equal to this H.

This is due to the relationship between the center of rotation of the base 21, and the center of the receiving port 17a of the billet rotating device 17 and the billet 2 after rotation.
This is because the center in the longitudinal direction does not coincide with the conveyance center 4b.
This deviation is the eccentricity amount H mentioned above.

As shown in FIG. 13, if the rotation center O of the base 21 is set appropriately so that the center of the receiving port 17H and the longitudinal center of the rotated billet 2 coincide with each other, the rotating device 17 can be rotated. The center of the receiving port 17a is made to coincide with the transport center 4b.

In this case, the guide shoe Hb does not need to move.

The conveying unit 3 includes a frame 34 that is movable in the carrying direction within the base 33, attachments 35 and 35' attached to this frame 34, and a fourth frame that moves the frame 34.
The cylinder device 36 is connected to the cylinder device 36.

The attachment 35 in this embodiment 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 consists of two fingers 37a and 37b that can be opened and closed in opposite directions, and a fifth cylinder device 38 that operates the fingers 37a and 37b.

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

The effect will be explained below.

(1) In the case of vertical feeding, the conveying section 4 is equipped with an attachment 35 for vertical feeding, and the first and second cylinder devices 1
4, 181 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 passes through the fixed chute 1a, the guide chute 1b, and the billet pedestal 16, and is sent vertically to the transport base point 4a of the transport section 4.

Next, the fifth cylinder device 38 is activated to grasp the vertical billet with the attachment 35, and then the fourth cylinder device 36 moves the frame 34 to transfer the billet 2 from the transfer base point 4a to the transfer device. The receiver is transported to the transfer position.

After this conveyance, the attachment 35 releases the billet 2,
Retract the frame 34.

This operation is repeated sequentially to convey the vertical billet 2.

(2) Cross-feeding In the case of cross-feeding, the billet rotation device 17 of the receiving section 3 is positioned above the conveyance base 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 shoe Hb is moved by an amount H to bring the tip of the guide shoe Hb 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 rotation device 17 receives the billets 2 from the guide chute 1b in a set shape, rotates the billets 2, turns the billets 2 horizontally, and drops them onto the cross-feeding attachment 35' waiting at the conveyance base point 4a. .

When the billet rotating device 17 has its holders 19a and 19b in the upright position, as shown in FIGS. 6-8,
Arms 23b and 24a are attached to the stoppers 28a and 28b.
are in contact with each other and both holders 19a, 19b are open, and the billet 2 is in contact with both holders 19a, 19b.
It falls between them and is supported in an upright state by the plate 29.

Then, the third cylinder device 31 is extended and both holders 19
a, rotate 19b through 90°.

During this rotation, the arms 2 of both holders 19a and 19b
3b and 24a are separated from each stopper and are closed by a spring, and the billet 2 is held by both holders 19a and 19b.

When the holders 19a and 19b have finished rotating, both holders 19
The other arms 23a, 24b of arms 23a, 19b contact other stoppers 28a, 28b-1, and both holders 19a, 19b open and the billet 2 falls.

The conveyance section 4 receives the billet 2 laterally and conveys it to a transfer device.

The present invention is as described above, and includes a billet pedestal 16 formed into a cylindrical shape with both ends open surrounding the assembled billet 2,
A billet rotating device 17 that detachably grips the billet 2 and can rotate the billet 2 by approximately 90 degrees from the vertical direction to the horizontal direction is provided on a pedestal 18 at a distance, and the pedestal 18 is rotated by a predetermined stroke. In order to construct a billet supply device for a forging press so as to be able to reciprocate over By selectively arranging the device 17 to face the lower side of the chute, the billet 2 from the guide chute 1b can be selectively fed vertically or horizontally to the conveying section 4 with a simple operation. This makes it possible to improve the workability of a forging press that selectively performs vertical and horizontal punching.

[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 the holder portion of the billet rotating device before rotation. A plan view, FIG. 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 vertical feeding, and FIG. 12 is a perspective view of an attachment for lateral feeding, and FIG. 13 is a diagram of another example. 2 is a billet, 16 is a billet pedestal, 17 is a billet rotating device, and 18 is a pedestal.

Claims (1)

[Scope of utility model registration request] A billet holder 16 that surrounds the vertical billet 2 and is formed into a cylindrical shape with both ends open, grips the billet 2 in a detachable manner and can rotate the billet 2 by approximately 90 degrees from the vertical direction to the horizontal direction. A billet feeding device for a forging press, characterized in that a billet rotating device 17 and a billet rotating device 17 are provided on a pedestal 1B separately from each other, and the pedestal 18 can be reciprocated over a predetermined stroke.