JPH0737407U - Extruded material cooling device - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide an extruded material cooling device capable of cooling an extruded material as uniformly as possible over the entire circumference thereof. [Structure] A cooling water jetting device 3 is provided at an extruded material inlet side opening a of an extruded material cooling water tank 2 arranged on the outlet side of an extruder 1. Then, from this device 3, cooling water is jetted from the entire circumferential direction of the extruded material X toward the extruded material X in order to uniformly cool the extruded material X over the entire circumferential direction thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an extruded material cooling device, and more particularly to an extruded material cooling device used for continuously cooling a metal extruded material immediately after extrusion.

[0002]

[Prior art]

 Conventionally, for example, an extruded material such as an aluminum alloy may be subjected to quenching, which is so-called die quenching, in which the extruded material is cooled by being passed through a cooling water tank arranged on the exit side of the extruder immediately after extrusion.

The water tank used for such quenching is of a two-sided open shape formed in a generally U-shaped upward cross-section, and is formed at the lower part of the extruded material inlet side opening and the same outlet side opening. A cooling water jet nozzle is provided for each. Each of these nozzles is set so as to eject the cooling water toward slightly above the inside of the water tank, so that the inside of the water tank is always filled with the cooling water.

Thus, the extruded material immediately after extrusion enters the water tank through the opening at one end thereof and passes through the water tank to be cooled by the cooling water.

[0005]

[Problems to be solved by the device]

 However, in such a conventional extruded material cooling device, as described above, the cooling water is ejected upward from the cooling water ejection nozzle provided in the lower portion of the extruded material inlet side opening of the cooling water tank. As a result, the extruded material in the high temperature state immediately after extrusion is relatively strongly cooled, especially at the extruded material inlet side opening of the water tank, when passing through the water tank.

As described above, the extruded material has a disadvantage that the lower surface side is more strongly cooled than the side surface and the upper surface side, and the bending occurs due to the uneven cooling action.

The present invention has been made in view of the above-mentioned problems, and the extruded material is cooled as uniformly as possible over the entire circumferential direction to prevent the extruded material from bending. The purpose is to provide a device.

[0008]

[Means for Solving the Problems]

 Thus, in order to avoid the inconvenience that the extruded material is strongly cooled only on its lower surface side, the present invention is arranged in the extruded material inlet side opening of the extruded material cooling water tank from the entire circumferential direction toward the extruded material. It is equipped with a cooling water jetting device for jetting cooling water.

That is, according to this invention, an extruded material cooling water tank having openings at both ends through which the extruded material immediately after extrusion can pass is arranged on the exit side of the extruder, and the extruded material inlet side opening portion of the water tank and In an extruded material cooling device equipped with a cooling water ejection device at an outlet opening, a cooling water ejection device installed at the extruded material inlet opening uniformly cools the extruded material over the entire circumferential direction. In order to achieve this, the gist of an extruded material cooling device is characterized in that cooling water is ejected from the entire circumferential direction of the extruded material toward the extruded material.

As the cooling water ejection device installed in the extruded material inlet side opening, for example, a device provided with a cooling water ejection nozzle for ejecting cooling water from the vertical and horizontal directions of the extruded material toward the extruded material. It is preferably used.

[0011]

[Action]

 The extruded material extruded from the extruder passes through the extruded material cooling water tank at a high temperature immediately after extrusion.

At this time, the extruded material first enters the water tank through the extruded material inlet side opening, and is cooled from the entire circumferential direction by the cooling water jetted from the cooling water jetting device near the opening. Therefore, the extruded material is cooled uniformly over the entire circumferential direction. Next, the extruded material is cooled by the cooling water filled in the water tank when passing through the water tank.

In this way, the extruded material is cooled evenly over the entire circumferential direction, so that there is no inconvenience such as bending of the extruded material.

The cooling water is supplied by a cooling water jetting device provided at the extruded material inlet side opening and the outlet side opening of the water tank, and the inside of the water tank is predetermined by the cooling water jetted by these jetting devices. Maintained at the water level.

[0015]

【Example】

 The present invention will be described below with reference to illustrated embodiments.

The extruded material cooling device (A) according to the illustrated embodiment is arranged on the outlet side of the extruder (1) and has an opening at both ends that allows the extruded material (X) immediately after extrusion to pass therethrough. It is composed of a water tank (2) and cooling water jetting devices (3) and (4) provided at the extruded material inlet side opening (a) and the same outlet side opening (b) of the water tank (2). ing.

The water tank (2) is a tubular body having a rectangular cross section surrounded by a bottom wall (2a), left and right side walls (2b) (2c), and an upper wall (2d). However, in this invention, the concrete shape of the water tank (2) is not particularly limited, and it may have an open upper end or a U-shaped cross section like the conventional product. good.

The cooling water jetting device (3) installed in the extruded material entrance side opening (a) includes a bottom wall (2a), a left side wall (2b) and a right side wall of the extruded material entrance side opening (a). (2c) and cooling water jet nozzles (3a) (3b) (3c) (3d) respectively provided on the upper surface wall (2d).

The cooling water jet nozzles (3a), (3b), (3c) and (3d) are designed to jet the cooling water without being interrupted over substantially the entire width of each wall. It is installed so as to face the extruded material (X) passing through the water tank (2) and slightly toward the inside of the water tank. Therefore, when the extruded material (X) enters the water tank through the extruded material inlet side opening (a) of the water tank (2), first, the upper and lower parts of the extruded material (X) are cooled by the cooling water ejected from the nozzles. It will be cooled substantially evenly from the left-right direction over the entire circumference.

As described above, the cooling water jetting device (3) for the extruded material inlet side opening (a) is configured to inject cooling water from the vertical and horizontal directions of the extruded material (X) toward the extruded material (X). It is the most preferable from a structural point of view to use the one provided with the cooling water jet nozzles (3a) (3b) (3c) (3d) for jetting, but the extruded material (X) is provided all around the circumference. It goes without saying that any other design change is allowed as long as it can be cooled substantially uniformly over the entire length. For example, a nozzle that ejects cooling water over the entire width of the bottom wall (2a) is installed, while a pair of nozzles that eject cooling water obliquely downward from above the left and right side walls are installed. Is also good. Alternatively, the nozzle may be provided with one nozzle that is configured to eject cooling water from the entire circumference of the water tank toward the center of the water tank without interruption.

In addition, the amount of cooling water jetted from each nozzle so that the extruded material (X) can be uniformly cooled over the entire circumference in accordance with the difference in cross-sectional shape and wall thickness of the extruded material (X). It is desirable to set the jetting direction and the jetting direction appropriately.

On the other hand, the cooling water jetting device (4) installed in the extrusion material outlet side opening (b) is a cooling water jetting nozzle provided in the bottom wall (2a) of the extrusion material outlet side opening (b). (4a) only. The nozzle (4a) is designed so that cooling water can be jetted toward the upper part of the inside of the water tank (2) over the substantially entire width of the bottom wall (2a). In this embodiment, as described above, the extruded material outlet side opening (b) is provided with the cooling water jetting device (4) for jetting the cooling water over substantially the entire width only on the bottom wall (2a) thereof. However, it is also possible to install a cooling water jetting device capable of jetting the cooling water from the entire circumferential direction of the extruded material (X 1), like the extruded material inlet side opening (a). .

In the figure, (5) is a roll for conveying extruded material, and (6) is a hole for discharging cooling water.

The inside of the water tank (2) is filled with cooling water jetted from the nozzles (3a) (3b) (3c) (3d) (4a) of the cooling water jetting devices (3) and (4). It is filled in such a manner as to always maintain a predetermined water level. The water level can be easily adjusted by appropriately setting the amount of cooling water jetted from each nozzle.

The extruded material (5) extruded from the extruder (1) passes through the extruded material cooling water tank (2) in a high temperature state immediately after extrusion.

At that time, the extruded material (5) firstly comes into contact with the nozzles (3a) (3b) (3c) of the cooling water jetting device (3) at the extruded material inlet side opening (a) of the water tank (2). The cooling water jetted from (3c) uniformly cools the entire circumference of the cooling water.

Next, the extruded material (5) is cooled by the cooling water filled in the water tank (2) when passing through the water tank (2).

[0028]

[Effect of device]

 The cooling water jetting device equipped in the extruded material inlet side opening of the extruded material cooling water tank according to the present invention is designed to uniformly cool the extruded material from the entire circumferential direction in order to uniformly cool the extruded material from the entire circumferential direction. The cooling water is jetted toward the extruded material. Therefore, the extruded material extruded from the extruder is uniformly cooled in the entire circumferential direction in the vicinity of the extruded material inlet side opening. Therefore, it is possible to avoid inconvenience such as bending of the extruded material as in the case of cooling with a conventional cooling device. As a result, it is possible to eliminate the need for straightening the bent extruded material, so that it is possible to improve the manufacturing efficiency of the extruded material and reduce the manufacturing cost.

As described in claim 2, the cooling water jetting device installed in the extruded material inlet side opening is a cooling water jetting nozzle for jetting the cooling water toward the extruded material from the vertical and horizontal directions of the extruded material. It is possible to provide an extruded material cooling device which has a simple structure and is excellent in uniform cooling effect by adopting the one provided with.

[Brief description of drawings]

FIG. 1 is a front view showing an extruded material cooling device according to an embodiment of the present invention.

FIG. 2 is a left side view of the extruded material cooling device seen from the extruded material inlet side opening side.

FIG. 3 is a right side view of the extruded material cooling device as seen from the extruded material exit side opening side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Extruder 2 ... Extruding material cooling water tank 3 ... Cooling water jetting device 3a ... Cooling water jetting nozzle 3b ... Cooling water jetting nozzle 3c ... Cooling water jetting nozzle 3d ... Cooling water jetting nozzle 4 ... Cooling water jetting device 4d ... Cooling Water jet nozzle a ... Extruded material inlet side opening b ... Extruded material outlet side opening X ... Extruded material

Claims (2)

[Scope of utility model registration request] 1. An extruded material cooling water tank (2) having openings at both ends, through which the extruded material (X) immediately after extrusion can pass, is arranged on the outlet side of the extruder (1), and the water tank (2) In the extruded material cooling device, wherein the extruded material inlet side opening (a) and the extruded material inlet side opening (b) are equipped with cooling water jetting devices (3) and (4), respectively. A cooling water jetting device (3) installed in the extruded material (X) from the entire circumferential direction of the extruded material (X) toward the extruded material (X) in order to uniformly cool the extruded material (X) over the entire circumferential direction thereof. An extruded material cooling device, characterized in that it is designed to eject cooling water. 2. The cooling water jetting device (3) installed in the extruded material inlet side opening (a) directs cooling water from the vertical and horizontal directions of the extruded material (X) toward the extruded material (X). The extruded material cooling device according to claim 1, comprising cooling water jet nozzles (3a) (3b) (3c) (3d) for jetting.