Product guide device for extrusion press equipment

Abstract

To provide a product guide device that can form an inclined surface which does not become an obstacle when making a coiler chute and a puller device enter a platen hole and on which a difference between a height at which an extruded product is extruded from a die and a height of an initial table can be compensated.SOLUTION: A product guide device of an extruding press device comprises a guide plate 51, arranged in a platen hole 10a of an end platen 10, which guides an extruded product 1 to an initial table 20 arranged at an outlet side for the extruded product 1 in the end platen 10, which further comprises a guide plate tilting shaft part 52 that supports the initial table 20 side of the guide plate 51 downward movably by tilting of the guide plate 51, and a guide plate tilting / driving part 53 that tilts the guide plate 51.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a product guide device for an extrusion press. [Background technology]

[0002] 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 in an end platen 10 and moves to an initial table 20 arranged on the outlet side of the end platen 10 for the extrusion product 1. A fixed product guide 30 is arranged 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. Reference numeral 10b denotes a pressure ring embedded in the end platen, 40 denotes a die stem fixed to the end face of the end platen by a fixing member (not shown), and 40a denotes a guide pipe made of carbon or the like arranged on the inner surface of the die stem.

[0003] Here, if there is a large difference between the height at which an extrusion product of a copper alloy or the like 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 downstream equipment (part P in Fig. 1). It would be good if a product guide with an inclined surface that bridges 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.

[0004] Patent Document 1 discloses a product straightening guide device that straightens out the bends in an extrusion product extruded through such a die. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 06-339723 Summary of the Invention [Problem to be solved by the invention]

[0006] Although the product correction guide device of Patent Document 1 can correct bending in various directions, there is a problem in that a certain 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 correction guide device, but can form an inclined surface that does not obstruct the entry of a coiler chute or puller device into the platen hole 10a as described above and that bridges the difference between the height at which the extrusion product 1 is extruded from the die and the height of the initial table.

[0007] The present invention has been made in consideration of the above-mentioned problems, and has as its object to provide a product guide device that can form an inclined surface that does not impede the entry of a coiler chute or a puller device into a platen hole and that bridges the difference in height between the height at which the extruded product is extruded from the die and the height of the initial table. [Means for solving the problem]

[0008] 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:

[0009] 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.

[0010] Furthermore, in the product guide device of the extrusion press device of 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.

[0011] Furthermore, in the product guide device for an extrusion press device of the present invention, the cylinder may be a double-rod cylinder with the cylinder rod protruding from both ends of the cylinder body, and a tip portion of one of the cylinder rods may be 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 may be disposed at the tip portion of the other cylinder rod.

[0012] It is preferable that the tilt angle adjustment mechanism is configured to adjust a sliding stroke of the cylinder rod of the cylinder. Effect of the Invention

[0013] 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. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a schematic cross-sectional side view of an indirect extrusion press apparatus near an end platen, showing a conventional product guide. [Diagram 2] 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. [Diagram 3] 5 is a schematic diagram showing details of a guide plate tilt drive unit and a tilt angle adjustment mechanism. FIG. [Figure 4] 13 is a schematic diagram showing another embodiment of the guide plate tilt drive unit and the tilt angle adjustment mechanism. FIG. [Diagram 5] 13 is a schematic view showing the bracket when the guide plate tilt drive unit is disposed separately. FIG. [Figure 6] 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. [Figure 7] 5 is a schematic diagram showing details of a guide plate tilt drive unit and a tilt angle adjustment mechanism. FIG. [Figure 8] 13 is a schematic diagram showing another embodiment of the guide plate tilt drive unit and the tilt angle adjustment mechanism. FIG. [Figure 9] FIG. 11 is a schematic diagram showing another embodiment of the tilt angle adjustment mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the inventions according to the claims, and all of the combinations of features described in the embodiments are not necessarily essential to the solution of the invention.

[0016] [First embodiment] First, a product guide device 50 of an extrusion press apparatus 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 apparatus according to the first embodiment. The product guide device 50 of the extrusion press apparatus 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 apparatus shown in Fig. 1 will be assigned the same reference numerals, and the description of each component will be omitted.

[0017] The product guide device 50 of the extrusion press 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. The product guide device 50 also includes a guide plate tilt shaft portion 52 that supports the initial table 20 side of the guide plate 51 so that the guide plate 51 can descend by tilting the guide plate 51, and a guide plate tilt drive portion 53 that tilts the guide plate 51.

[0018] 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 an end surface of the end platen 10 on the initial table 20 side below the guide plate 51, and a 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. 3 is a schematic diagram showing details of the guide plate tilt drive unit 53 and a tilt angle adjustment mechanism 54, which will be described later. Fig. 3(a) is a view seen from an arrow A in Fig. 2, and Fig. 3(b) is a view seen from an arrow B in Fig. 3(a).

[0019] 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 capable of adjusting 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 having a male thread is connected to an adjustment rod 54a having a male thread, which is connected to the lower surface of the guide plate 51, by a connection plate 54b. The connection plate 54b is fixed to the tip of the cylinder rod 53b and the adjustment rod 54a by nuts 54c. By adjusting the position of the connection 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, and the tilt angle of the guide plate 51 when the guide plate tilt drive unit 53 is driven can be suitably adjusted.

[0020] As another embodiment of the first embodiment, a guide plate tilt drive unit 153 using a double rod cylinder as shown in FIG. 4 may be used. Specifically, a tip end portion of one cylinder rod 153b is connected to the lower surface of the guide plate 51 on the initial table 20 side, and a tilt angle adjustment mechanism 154 is disposed at a tip end portion 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, which are attached to the tip end portion 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 in which the mounting hole of the stopper 154b for a bolt or the like is made into an elongated hole so that the position can be adjusted 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, 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. Fig. 4(a) is a view seen from the arrow A in Fig. 2, Fig. 4(b) is a view seen from the arrow C in Fig. 4(a), and Fig. 4(c) shows the stopper 154b whose position can be adjusted.

[0021] When a coiler chute or a puller device is inserted into the platen hole 10a by using the guide plate 51, the guide plate tilt shaft 52, and the guide plate tilt drive 53, 153, the guide plate 51 is kept horizontal so as not to obstruct the insertion of these devices, and when the product is extruded, the guide plate tilt drive 53, 153 is driven to form an inclined surface that bridges 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. Also, by connecting the guide plate tilt drive 53, 153 to the guide plate 51 via the tilt angle adjustment mechanism 54, 154, 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.

[0022] Furthermore, since the guide plate tilt drive units 53, 153 and tilt angle adjustment mechanisms 54, 154 are disposed on the end faces of the end platen 10, these mechanisms are easily accessible, facilitating maintenance and adjustment of the tilt angle of the guide plate 51.

[0023] In the first embodiment, the guide plate tilt drive units 53, 153 have been described as having a cylinder main body 53a 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 units 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).

[0024] [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.

[0025] In the second embodiment, in the product guide device 50 of the extrusion press device, the cylinder main body portion 53a of the guide plate tilting drive unit 253 is arranged on the end face of the end platen 10 on the initial table 20 side, on the side of 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.

[0026] 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 an end surface of the end platen 10 on the initial table 20 side, beside the guide plate 51, and a 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 details of the guide plate tilt drive unit 253 and a tilt angle adjustment mechanism 254, which will be described later. Fig. 7(a) is a view seen from an arrow E in Fig. 6, and Fig. 7(b) is a view seen from an arrow F in Fig. 7(a).

[0027] 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 capable of adjusting the tilt angle of the guide plate 51. As shown in FIG. 7, the tilt angle adjustment mechanism 254 is configured such that the tip of the cylinder rod 53b having a male thread is connected to an adjustment rod 254a having a male thread and connected to the lower surface of the guide plate 51 by a connecting plate 254b. The connecting plate 254b is fixed to the tip of the cylinder rod 53b and the adjustment rod 254a by nuts 54c. An inclination angle plate 254c having an inclined opening is attached to the lower surface of the guide plate 51 on the initial table 20 side, and a guide member 254d having 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 driving mechanism 253 is driven, the guide roller of the guide member 254d moves through the opening of the inclination angle plate 254c, thereby tilting the guide table 51. By adjusting the position of the connecting plate 254b relative to the tip end portion 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 when the guide plate tilt driving unit 53 is driven can be suitably adjusted.

[0028] As another embodiment of the second embodiment, a guide plate tilt drive unit 353 using a double rod cylinder as shown in FIG. 8 may be used. Specifically, the tip of one cylinder rod 353b is connected to an inclination angle plate 354c on the lower surface of the guide plate 51 on the initial table 20 side via a guide roller (not shown), and a 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, which 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 in which the mounting hole of the stopper 354b for a bolt or the like is made an elongated hole so that the position can be adjusted 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, 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. Fig. 8(a) is a view seen from the arrow E in Fig. 6, Fig. 8(b) is a view seen from the arrow G in Fig. 8(a), and Fig. 8(c) shows the stopper 353b whose position can be adjusted.

[0029] 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. When the angle of the opening is large as shown 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 shown 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 shown in Fig. 9(c).

[0030] 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-mentioned embodiments and can be embodied in various forms without departing from the scope of the claims.

[0031] In the first and second embodiments, the explanation is based on the assumption of an indirect extrusion press device that extrudes a relatively soft metal material such as a copper alloy. However, in a typical direct extrusion press device, the cross-sectional area of ​​the extruded product is small, and bending occurs when the extruded 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.

[0032] Furthermore, in the first and second embodiments, a configuration is described in which a tilt angle adjustment mechanism is provided. However, 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. [Explanation of symbols]

[0033] 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 inclination 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 part, 353b / 353c cylinder rod, 354 tilt angle adjustment mechanism, 354a stopper block, 354b stopper, 354c tilt angle plate,

Claims

1. 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. 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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