JP7658233B2 - Product guide device for extrusion press equipment - Google Patents

Description

The present invention relates to a product guide device for an extrusion press device.

In an extrusion press device, as shown in FIG. 1, an extrusion product 1 extruded from a die (not shown) passes through a platen hole 10a of an end platen 10 and moves to an initial table 20 located on the outlet side of the end platen 10 for the extrusion product 1. A fixed product guide 30 is placed in the platen hole 10a so that the extrusion product 1 can move smoothly to the initial table. FIG. 1 is a cross-sectional view of the vicinity of the platen hole of an end platen of an indirect extrusion press device that extrudes relatively soft metal materials such as copper alloys. 10b is a pressure ring embedded in the end platen, 40 is a die stem fixed to the end face of the end platen by a fixing member (not shown), and 40a is a guide pipe made of carbon or the like that is placed on the inner surface of the die stem.

Here, if there is a large difference between the height at which an extrusion product such as a copper alloy is extruded from the die and the height of the fixed product guide 30, the product will bend when it leaves the die, and it may be difficult to correct the bend in the rear equipment (part P in Figure 1). It would be good if a product guide with an inclined surface that connects the difference between the height at which the extrusion product 1 is extruded from the die and the height of the initial table could be placed in the platen hole 10a, but a coiler chute or puller device may enter the platen hole 10a, and the height at which each extrusion product is extruded from the die differs, so it was difficult to place a product guide with such an inclined surface in the platen hole.

A product straightening guide device has been devised in Patent Document 1 to straighten out the bends in the extrusion product extruded from such a die.

Japanese Patent Application Publication No. 06-339723

The product straightening guide device of Patent Document 1 can straighten bends in various directions, but has the problem that a certain amount of space is required between the end platen and the initial table because multiple components related to the end platen end face are arranged. There is a strong demand for a product guide device that does not rely on such a product straightening guide device, but can form an inclined surface that does not obstruct the entry of the coiler chute or puller device into the platen hole 10a as described above, and that connects the difference in height between the height at which the extrusion product 1 is extruded from the die and the height of the initial table.

The present invention was made in consideration of the above-mentioned problems, and aims to provide a product guide device that can form an inclined surface that does not impede the entry of a coiler chute or puller device into the platen hole and connects the difference in height between the height at which the extruded product is extruded from the die and the height of the initial table.

The object of the present invention is to provide a product guide device for an extrusion press apparatus, the product guide device including a guide plate disposed in a platen hole of an end platen for guiding an extrusion product to an initial table disposed on an outlet side of the end platen for the extrusion product, the product guide device comprising:
a guide plate tilt shaft portion that supports the initial table side of the guide plate so that the initial table side of the guide plate can be lowered by tilting the guide plate;
a guide plate tilt drive unit that tilts the guide plate;
This is achieved by a product guide device of an extrusion press apparatus, which is characterized by comprising:

In addition, in the product guide device for an extrusion press according to the present invention, the guide plate tilt drive unit is a cylinder having a cylinder rod that slides relative to a cylinder main body,
the cylinder main body is disposed on an end surface of the end platen on the initial table side,
It is preferable that a tip end portion of the cylinder rod and the initial table side of the guide plate are connected to enable the guide plate to be tilted.

Furthermore, in the product guide device of the extrusion press device according to the present invention, the tip portion of the cylinder rod and the initial table side of the guide plate may be connected via a tilt angle adjustment mechanism capable of adjusting the tilt angle of the guide plate.

Furthermore, in the product guide device of the extrusion press device according to the present invention, the cylinder may be a double-rod cylinder with the cylinder rod protruding from both ends of the cylinder body, with the tip portion of one of the cylinder rods connected to the initial table side of the guide plate, and a tilt angle adjustment mechanism capable of adjusting the tilt angle of the guide plate being disposed at the tip portion of the other cylinder rod.

And it is preferable that the tilt angle adjustment mechanism is configured to adjust the sliding stroke of the cylinder rod of the cylinder.

A product guide device for an extrusion press apparatus according to the present invention includes a guide plate that is disposed in a platen hole of an end platen and guides an extrusion product to an initial table that is disposed on an outlet side of the end platen for the extrusion product, the product guide device comprising:
a guide plate tilt shaft portion that supports the initial table side of the guide plate so that the initial table side of the guide plate can be lowered by tilting the guide plate;
a guide plate tilt drive unit that tilts the guide plate;
Therefore, it is possible to provide a product guide device that can form an inclined surface that does not obstruct the entry of a coiler chute or a puller device into the platen hole and that bridges the difference between the height at which the extruded product is extruded from the die and the height of the initial table.

FIG. 1 is a schematic cross-sectional side view of an indirect extrusion press apparatus near an end platen, showing a conventional product guide. FIG. 2 is a schematic cross-sectional side view of the vicinity of an end platen of the indirect extrusion press device according to the first embodiment. 5 is a schematic diagram showing details of a guide plate tilt drive unit and a tilt angle adjustment mechanism. FIG. 13 is a schematic diagram showing another embodiment of the guide plate tilt drive unit and the tilt angle adjustment mechanism. FIG. 13 is a schematic view showing the bracket when the guide plate tilt drive unit is disposed separately. FIG. FIG. 11 is a schematic cross-sectional plan view of the vicinity of an end platen of an indirect extrusion press device according to a second embodiment. 5 is a schematic diagram showing details of a guide plate tilt drive unit and a tilt angle adjustment mechanism. FIG. 13 is a schematic diagram showing another embodiment of the guide plate tilt drive unit and the tilt angle adjustment mechanism. FIG. FIG. 11 is a schematic diagram showing another embodiment of the tilt angle adjustment mechanism.

The following describes in detail the embodiments of the present invention with reference to the accompanying drawings. Note that the following embodiments do not limit the inventions according to the claims, and not all of the combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[First embodiment]
First, a product guide device 50 of an extrusion press according to a first embodiment will be described with reference to Fig. 2 to Fig. 5. Fig. 2 is a schematic cross-sectional side view of the vicinity of an end platen of an indirect extrusion press according to the first embodiment. The product guide device 50 of the extrusion press according to the first embodiment differs only in the product guide 30 shown in Fig. 1. Therefore, only the different product guide device 50 will be described, and the same components as those of the extrusion press shown in Fig. 1 will be assigned the same reference numerals, and the description of each component will be omitted.

The product guide device 50 of the extrusion press device according to the first embodiment is disposed within the platen hole 10a of the end platen 10, and includes a guide plate 51 that guides the extrusion product 1 to the initial table 20 that is disposed on the outlet side of the end platen 10 for the extrusion product 1. It also includes a guide plate tilt shaft portion 52 that supports the initial table 20 side of the guide plate 51 so that it can be lowered by tilting the guide plate 51, and a guide plate tilt drive portion 53 that tilts the guide plate 51.

As shown in FIG. 3, the guide plate tilt drive unit 53 is a cylinder equipped with a cylinder rod 53b that slides relative to a cylinder body 53a, and the cylinder body 53a is disposed on the end surface of the end platen 10 on the initial table 20 side below the guide plate 51, and the tip of the cylinder rod 53b is connected to the initial table 20 side of the guide plate 51 so as to be able to tilt the guide plate 51. FIG. 3 is a schematic diagram showing the details of the guide plate tilt drive unit 53 and the tilt angle adjustment mechanism 54 described later. FIG. 3(a) is a view seen from the arrow A in FIG. 2, and FIG. 3(b) is a view seen from the arrow B in FIG. 3(a).

In the first embodiment, the tip of the cylinder rod 53b and the initial table 20 side of the guide plate 51 are connected via a tilt angle adjustment mechanism 54 that can adjust the tilt angle of the guide plate 51. As shown in FIG. 3, the tilt angle adjustment mechanism 54 is configured such that the tip of the cylinder rod 53b with a male thread is connected to the lower surface of the guide plate 51 with a male thread by a connecting plate 54b. The connecting plate 54b is fixed to the tip of the cylinder rod 53b and the adjustment rod 54a with nuts 54c. By adjusting the position of the connecting plate 54b relative to the tip of the cylinder rod 53b and the adjustment rod 54a, the sliding stroke of the cylinder rod 53b can be adjusted to suitably adjust the tilt angle of the guide plate 51 when the guide plate tilt drive unit 53 is driven.

As another embodiment of the first embodiment, the guide plate tilt drive unit 153 may be a double-rod cylinder as shown in FIG. 4. Specifically, the tip of one cylinder rod 153b is connected to the underside of the initial table 20 side of the guide plate 51, and the tilt angle adjustment mechanism 154 is disposed at the tip of the other cylinder rod 153c. In this case, the tilt angle adjustment mechanism 154 is composed of a stopper block 154a and a stopper 154b that are attached to the tip of the other cylinder rod 153c by a nut 54c so that the position can be adjusted. As shown in FIG. 4(c), instead of the stopper block 154a, a form that allows the position to be adjusted by making the mounting hole of the stopper 154b for a bolt or the like an elongated hole may be adopted. In this way, by adjusting the position of the stopper block 154a or the stopper 154b, the sliding stroke of the cylinder rods 153b and 153c can be adjusted to suitably adjust the tilt angle of the guide plate 51 when the guide plate tilt drive unit 153 is driven. Figure 4(a) is a view seen from the arrow A in Figure 2, Figure 4(b) is a view seen from the arrow C in Figure 4(a), and Figure 4(c) shows the stopper 154b with an adjustable position.

When a coiler chute or a puller device is inserted into the platen hole 10a using the guide plate 51, guide plate tilt shaft 52, and guide plate tilt drive 53, 153, the guide plate 51 is placed in a horizontal position so as not to impede the entry of these devices, and when the product is extruded, the guide plate tilt drive 53, 153 is driven to form an inclined surface that connects the difference between the height at which the extruded product is extruded from the die and the height of the initial table, thereby suppressing deformation of the extruded product. In addition, the guide plate tilt drive 53, 153 is connected to the guide plate 51 via the tilt angle adjustment mechanism 54, 154, so that the inclination angle of the guide table 51 can be more suitably adjusted according to the height at which the extruded product is extruded from the die in order to suppress deformation of the extruded product.

In addition, because the guide plate tilt drive unit 53, 153 and tilt angle adjustment mechanism 54, 154 are located on the end face of the end platen 10, these mechanisms are easily accessible, facilitating maintenance and adjustment of the tilt angle of the guide plate 51.

In the first embodiment, the guide plate tilt drive unit 53, 153 is described as being arranged such that the cylinder body 53a is disposed on the end surface of the end platen 10 facing the initial table 20 below the guide plate 51, as shown in FIG. 3. However, as shown in FIG. 5, a bracket may be disposed above the guide plate 51, and the guide plate tilt drive unit 53, 153 described above may be disposed on the end surface of the end platen 10 facing the initial table 20 above the guide plate 51. FIG. 5(a) is a schematic diagram of a bracket disposed above the guide plate 51, and FIG. 5(b) is a view taken along the arrow D in FIG. 5(a).

[Second embodiment]
Next, a product guide device 50 of an extrusion press according to a second embodiment will be described with reference to Figs. 6 to 9. Fig. 6 is a schematic cross-sectional plan view of the vicinity of an end platen of an indirect extrusion press according to the second embodiment. The product guide device 50 according to the second embodiment differs from the product guide device 50 of the extrusion press according to the first embodiment in the position of the guide plate tilt drive unit and the tilt angle adjustment mechanism. Therefore, only the different configurations will be described.

In the second embodiment, the product guide device 50 of the extrusion press device has a cylinder body 53a of the guide plate tilt drive unit 253 disposed on the end face of the end platen 10 on the initial table 20 side of the guide plate 51, and the tip portion of the cylinder rod 53b is connected to the initial table 20 side of the guide plate 51 so that the guide plate 51 can be tilted.

As shown in FIG. 7, the guide plate tilt drive unit 253 is a cylinder equipped with a cylinder rod 53b that slides relative to a cylinder body 53a, and the cylinder body 53a is disposed on the end surface of the end platen 10 on the initial table 20 side, beside the guide plate 51, and the tip portion of the cylinder rod 53b and the initial table 20 side of the guide plate 51 are connected so as to be able to tilt the guide plate 51. FIG. 7 is a schematic diagram showing the details of the guide plate tilt drive unit 253 and the tilt angle adjustment mechanism 254 described later. FIG. 7(a) is a view seen from the arrow E in FIG. 6, and FIG. 7(b) is a view seen from the arrow F in FIG. 7(a).

In the second embodiment, the tip of the cylinder rod 53b and the initial table 20 side of the guide plate 51 are connected via a tilt angle adjustment mechanism 254 that can adjust the tilt angle of the guide plate 51. As shown in FIG. 7, the tilt angle adjustment mechanism 254 is connected by a connecting plate 254b to the tip of the cylinder rod 53b with a male thread and an adjustment rod 254a with a male thread that is connected to the underside of the guide plate 51. The connecting plate 254b is fixed to the tip of the cylinder rod 53b and the adjustment rod 254a with nuts 54c. An inclination angle plate 254c with an inclined opening is attached to the underside of the guide plate 51 on the initial table 20 side, and a guide member 254d equipped with a guide roller (not shown) inserted into the opening of the inclination angle plate 254c is attached to the tip of the adjustment rod 254a on the guide plate 51 side. With this structure, when the guide plate drive mechanism 253 is driven, the guide roller of the guide member 254d moves through the opening of the tilt angle plate 254c, tilting the guide table 51. By adjusting the position of the connecting plate 254b relative to the tip of the cylinder rod 53b and the adjustment rod 254a, the sliding stroke of the cylinder rod 53bc can be adjusted, and the tilt angle of the guide plate 51 can be suitably adjusted when the guide plate tilt drive unit 53 is driven.

As another embodiment of the second embodiment, the guide plate tilt drive unit 353 may adopt a double rod cylinder as shown in FIG. 8. Specifically, the tip of one cylinder rod 353b is connected to the tilt angle plate 354c on the lower surface of the initial table 20 side of the guide plate 51 via a guide roller (not shown), and the tilt angle adjustment mechanism 354 is disposed at the tip of the other cylinder rod 353c. In this case, the tilt angle adjustment mechanism 354 is composed of a stopper block 354a and a stopper 354b that are attached to the tip of the other cylinder rod 353c by a nut 54c so that the position can be adjusted. As shown in FIG. 8(c), instead of the stopper block 354a, a form that allows the position to be adjusted by making the mounting hole of the stopper 354b with a bolt or the like an elongated hole may be adopted. In this way, by adjusting the position of the stopper block 354a or the stopper 354b, the sliding stroke of the cylinder rods 353b and 353c can be adjusted to suitably adjust the tilt angle of the guide plate 51 when the guide plate tilt drive unit 353 is driven. Figure 8(a) is a view seen from the arrow E in Figure 6, Figure 8(b) is a view seen from the arrow G in Figure 8(a), and Figure 8(c) shows the stopper 353b whose position can be adjusted.

The tilt angle adjustment mechanism 354 can also suitably adjust the tilt angle of the guide plate 51 by changing the shape of the opening of the tilt angle plate 254c, as shown in FIG. 9(a). When the angle of the opening is large, as in FIG. 9(a), the tilt angle of the guide plate 51 can be adjusted to a large value with a small drive amount of the guide plate tilt drive unit 353, and when the angle of the opening is small, as in FIG. 9(b), the tilt angle of the guide plate 51 can be adjusted to a small value. The tilt angle of the guide plate 51 can also be adjusted by changing the position of the opening, as in FIG. 9(c).

The above describes the first and second embodiments of the invention, but it goes without saying that the present invention is not limited to the above embodiments and can be embodied in various ways without departing from the scope of the claims.

The first and second embodiments have been described on the premise of an indirect extrusion press device that extrudes relatively soft metal materials such as copper alloys. However, in a normal direct extrusion press device, the cross-sectional area of the extruded product is small, and bending occurs when the product leaves the die due to the difference between the height at which it is extruded from the die and the height of the fixed product guide 30. Even in such cases, the present invention can suppress bending of the extruded product.

In addition, in the first and second embodiments, a tilt angle adjustment mechanism has been described, but when there is no need to adjust the tilt angle of the guide plate, for example when the size of the extrusion press is small or when the extrusion press extrudes the same extrusion product, the tilt angle adjustment mechanism is not essential, and it is sufficient to drive the guide plate tilt drive unit so that the guide plate is tilted to a constant tilt angle according to the situation.

1 Extrusion product, 10 End platen, 10a Platen hole, 10b Pressure ring, 20 Initial table, 30 Product guide (fixed type), 40 Die stem, 40a Guide pipe, 50 Product guide device, 51 Guide plate, 52 Guide plate tilt shaft portion, 53 Guide plate tilt drive portion, 53a Cylinder main body portion, 53b Cylinder rod, 54 Tilt angle adjustment mechanism, 54a Adjustment rod, 54b Connecting plate, 54c Nut,
153 Guide plate tilt drive unit, 153b/153c Cylinder rod, 154 Tilt angle adjustment mechanism, 154a Stopper block, 154b Stopper,
253 Guide plate tilt drive unit, 254 Tilt angle adjustment mechanism, 254a Adjustment rod, 254b Connection plate, 254c Tilt angle plate, 254d Guide member,
353 Guide plate tilt drive unit, 353b/353c Cylinder rod, 354 Tilt angle adjustment mechanism, 354a Stopper block, 354b Stopper, 354c Tilt angle plate,

Claims (2)

A product guide device for an extrusion press apparatus, comprising: a guide plate disposed in a platen hole of an end platen and guiding an extrusion product to an initial table disposed on an outlet side of the end platen for the extrusion product,
a guide plate tilt shaft portion that supports the initial table side of the guide plate so that the initial table side of the guide plate can be lowered by tilting the guide plate;
a guide plate tilt drive unit that tilts the guide plate;
Equipped with
The guide plate tilt drive unit is a cylinder having a cylinder rod that slides relative to a cylinder body,
the cylinder main body is disposed on an end surface of the end platen on the initial table side,
a tip end portion of the cylinder rod and a side of the guide plate facing the initial table are connected to enable the guide plate to be tilted;
A product guide device for an extrusion press apparatus, characterized in that the cylinder is a double-rod cylinder in which the cylinder rod protrudes from both ends of the cylinder body, a tip portion of one of the cylinder rods is connected to the initial table side of the guide plate, and a tilt angle adjustment mechanism capable of adjusting the tilt angle of the guide plate is disposed at the tip portion of the other cylinder rod. 2. The product guide device of an extrusion press apparatus according to claim 1 , wherein the tilt angle adjustment mechanism is configured to adjust a sliding stroke of the cylinder rod of the cylinder.

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