JPS6182923A - Manufacture of metallic extrudate - Google Patents

Abstract

PURPOSE:To improve productivity by pinching both ends of many extrusion materials for simultaneously straightening them by stretching after press- attaching Al-sheets to both ends of the materials. CONSTITUTION:A punch 8 for press-attaching is disposed parallelly to a platen cutter 7 at the side of an end platen 9. The punch 8 moves vertically simultaneously with the upper blade of a cutter 7, and thin Al-sheets 10 are press- attached to many extrusion materials B. Therefore, by the actuation of cutter 7, the sheets 10 are press-attached to the end parts of materials B simultaneously with the cutting of materials B. Next, many of the extrusion materials B with the Al-sheets press-attached to their cut ends are transferred, and then straightened by stretching, in a state of being pinched at their press-attached ends. In this way, the working speed is increased because of the simultaneous straightening of many materials B, and the productivity is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing metal extrusions such as aluminum extruded sections, and more specifically, the invention relates to a method for manufacturing extruded metal materials such as aluminum extruded sections, and more specifically, a method for manufacturing extruded materials using a multi-hole die having a plurality of by-shaped openings. Regarding manufacturing methods.

[Conventional technology]

As is known, extruded materials, such as aluminum sash materials, are manufactured by forming them using an extrusion press, and then going through the processes of rough cutting, tensile straightening, and finishing cutting.

In recent years, automation has been actively used in the production of such extruded materials. However, there are various difficulties in the production of extruded materials that hinder automation, particularly in the equipment behind the extrusion press.

For example, various proposals have been made for automating tension straightening machines. However, extruded materials that are roughly cut after being formed into the desired shape using an extrusion press are generally long and have many bends, making automation extremely difficult. The current situation is that Ichiki is undergoing tensile straightening.

Such methods are particularly problematic in the case of multihole extrusion.

As is known, multi-hole extrusion allows a large number of tubes to be produced at the same time and is extremely efficient. However, if the rear equipment cannot process at the same speed, it will not be as effective.

The present invention has been made in view of these circumstances.

[Problem that the invention seeks to solve]

Glue of the present invention
When cutting a large number of extruded materials simultaneously extruded from a multi-hole die having a single hole into required lengths at the outlet end of the extrusion press, a step of crimping an aluminum plate to the cut ends of the extrusion presses is included, and then the extrusion This method is characterized in that after the material is transferred to a tension straightening machine, both ends of the extruded material are held and a large number of extruded materials are tensile straightened at the same time.

[Means for solving problems]

The present invention is applicable to multi-hole extrusion such as 3-hole and 4-hole extrusion. Further, depending on the shape, a larger number of holes is also possible.

In the present invention, as exemplified in the first factor, the extruded material is produced by placing a unit billet A in a container 1 as usual, and then placing a multi-hole die 3 having a plurality of forming openings 2 at the front end of the container. It is produced by applying pressure from the end with a pressure ram 4. 51-i gummy block, and 6 indicates a die holder.

Then, at the exit end of the extrusion press, a large number of extruded materials B are roughly cut into a predetermined length using a platen cutter 7. At this time, an aluminum plate is crimped to both ends of each extruded material, and the extruded materials are extruded with the aluminum plate. The materials are connected to each other.

Crimping is carried out by strongly pressing the aluminum plate against the extruded material using an appropriate pressure means.The extruded material immediately after passing through the extrusion die is in a state where it is easily deformed at high temperatures. It is embedded and firmly joined.

The crimping operation can be performed by placing a suitable crimping punch near the platen cutter and applying strong pressure to the aluminum plate, or can be performed simultaneously with cutting (shearing) the extruded material by the platen cutter.

An example is shown in FIGS. 2 and 3. In a practical example, only the front end of the extruded material is crimped with a punch, and then crimped during cutting with a platen cutter.A crimping punch 8 is provided on the end platen 9 side in parallel with the platen cutter 7. The crimping punch 8 is provided so as to be bent by vertical movement at the same time as the upper blade of the platen cutter, and supplies the aluminum plate above the extruded shape B at the crimping position, and supports the extruded shape by a support means (not shown). In this state, the platen cutter is operated to lower the crimping punch, thereby crimping the sia aluminum plate to the extruded material.

Then, as the extrusion progresses and when cutting the extruded material, an aluminum plate is supplied above the extruded material at the cutting part in the same manner as above, and the platen cutter is operated.At the same time as the extruded material is cut, the aluminum plate is cut as shown in Fig. 3. If the aluminum plate is crimped to the front and rear ends of the extruded material, if it is thin, the strength will be weak and it may break.If it is thick, the crimping performance will be poor and there is a risk of it peeling off. It is preferable to use -1' aluminum plates, which can be supplied individually using a vacuum or edged method, or it is also possible to supply them separately from the coil. In the case of a coil, it is also possible to wrap it around a shape to form a bundle.

A large number of extruded sections with aluminum plates crimped onto the cut ends are then placed on a traveling table as usual.
After passing through a cooling table, it is transferred to a tensile straightening machine. Then, the crimped end of the extruded shape is held in a tension straightening machine,
Many books are tensile straightened at the same time.

〔effect〕

According to the present invention, the productivity when manufacturing extruded shapes using a multi-hole die is extremely good. When an aluminum plate is crimped to the end of a large number of extruded sections, the extruded sections are connected to each other via the aluminum plate, so a tensile straightening machine can tension-straighten a large number of extruded sections at the same time. It is an effect.

In particular, in the production of known extruded sections, a step of rough cutting at the exit end of the extrusion press is essential, and a method is generally adopted in which extrusion is interrupted and cut when a predetermined extrusion length is reached. Therefore, efficiency is not hindered even if the aluminum plate is crimped onto the cut end of the section.

As a result of crimping aluminum plates to the ends of many extruded shapes, it is possible to straighten many of them by tension at the same time.
Compared to the dead-end method (k), the automation processing speed of the rear equipment can be greatly improved.

In addition, when individual extruded shapes are cooled, they may become sticky, curved, or twisted, but when an aluminum plate is crimped, the extruded materials are connected with aluminum, and a straightening force is applied between them. is also prevented.

[Brief explanation of the drawing]

FIG. 1 is a clear view of the extrusion ladder, FIG. 2 is a perspective view of the crimping state of the -ji embodiment, and FIG. 3 is a plan view of the extruded section in the crimped state. B... Extruded shape material, 7... Platen cutter, 8...
Crimping punch, 10... Aluminum thin plate. Figure 2 Figure 3

Claims (1)

[Claims] A method for producing a large number of extruded materials from a multi-hole die having a plurality of forming openings, including the step of crimping an aluminum plate to both ends of a large number of extruded materials that are cut to a required length at the exit of an extrusion press. 1. A method for manufacturing a metal extruded material, which comprises the steps of: transferring the extruded material to a tensile straightening machine; and then clamping both ends of the extruded material and tensile straightening a large number of extruded materials at the same time.