KR100550375B1 - Aluminum slide rail and manufacturing method thereof - Google Patents

Abstract

The present invention is a cross-section is formed in the 'c' shape and the semicircular recess is formed on the inner side of the upper and lower, respectively, the outer side of the aluminum material is formed in the longitudinal side is set long groove in the longitudinal direction; The cross section is formed in an inverted 'C' shape symmetrically in the vertical direction with the outer rail, and the upper and lower ends are positioned to correspond to the upper and lower inner surfaces of the outer rail so that semi-circular protrusions corresponding to the semi-circular recesses are formed at the upper and lower ends, respectively. It is made of an inner rail of the aluminum material formed in the long set groove in the direction; The outer rail and the inner rail are related to an aluminum slide rail extruded aluminum and a method of manufacturing the same.

Since the present invention does not require a separate ball bearing between the outer rail and the inner rail, the manufacturing process is greatly shortened, the production efficiency is increased, and the product yield per hour is greatly increased. This is made of very strong, made of aluminum alloy does not rust, has a beautiful gloss appearance, there is an effect that can be advanced to the product because the noise is hardly generated by the smooth sliding by grease.

Outer rail, semicircular recess, inner rail, semicircular protrusion, grease, extrusion die

Description

Aluminum slide rail and manufacturing method

1 is a front view showing the appearance of the extrusion die formed with the outer rail die groove used in the manufacturing process of the present invention,

Figure 2 is a front view showing the appearance of the extrusion die formed with the inner rail die groove used in the manufacturing process of the present invention,

3 is a perspective view illustrating a state in which the outer rail and the inner rail extruded through the outer rail die groove and the inner rail die groove, which are embodiments of the present invention, are combined;

Figure 4 is an exploded perspective view showing a state in which the outer rail and the inner rail separated from the embodiment of the present invention,

5 is a front sectional view of FIG. 3;

Figure 6 is a front sectional view showing a combined appearance of the outer rail and the inner rail further formed guide guide in another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1: aluminum slide rail 10: outer rail

11,12: semicircular recess 13,14: guide recess

15: setting groove 20: inner rail

21,22; Semicircular protrusion 23,24: guide protrusion

25: setting groove 30: grease

40,50: Extrusion die 41: Outer rail die groove

42,43: semicircular recess 51: inner rail die groove

52,53: semicircular protrusion

The present invention relates to an aluminum slide rail and a method for manufacturing the same, which is extruded through an extrusion die with an aluminum alloy instead of a roll forming or pressing method, the outer rail die groove and the inner rail die groove in the extrusion die in one body or another body By forming and continuously extruding, the extruded outer rail and the inner rail are configured to be slidably coupled to each other by the semi-circular recesses and the semi-circular protrusions, and there is no need for a separate ball bearing between the outer rail and the inner rail. The present invention relates to an aluminum slide rail and a method of manufacturing the same, which can greatly contribute to not only domestic sales but also large exports, as well as a large increase in production efficiency and an increase in production efficiency.

Slide rails are installed on the inner sides of storage devices such as kimchi refrigerators, dishwashers, hot refrigerators, and wine refrigerators with a drawer for storing foods such as a desk or cabinet with a drawer or kimchi. The rail of the metal plate to open the door smoothly, consisting of an outer rail which is integrally fixed to the wall surface of the storage device by the fastening means, and an inner rail that moves smoothly from the outer rail, the inner rail is one or two Consists of an inner rail, a plurality of ball bearings are installed between the inner rails for a smooth sliding operation.

A sliding rail having such a configuration is registered as a patent No. 1993-0001122 dated February 18, 1993, and the outer periphery of each bent edge formed on the inner rail and the outer rail and the rotating body stacked thereby. Not only is the curvature formed substantially the same, but in order to install intermediate rotors between the rotors in a rotatable manner, protrusions of the rotary supports are formed on the inner surfaces of the inner rails and outer rails, and grooves are formed in the supporting parts. It was comprised so that the said intermediate | middle rotary body which made this and the outer periphery curvature substantially equal to a groove | channel may be clamped.

These slide rails are formed by cold forming a cold rolled steel sheet having a thickness of about 1.3 to 2.0 and forming an outer rail and an inner rail according to a forming method using a roll forming or a press, followed by washing with an acid treatment and drying. By inserting and mounting a plurality of ball bearings at regular intervals by manual operation between the outer rail and the inner rail, the inner rail is slidably moved in the outer rail.

However, such a conventional slide rail has a problem that the excess acid remaining during the acid treatment is accumulated inside the bent portion after production, and leaked after being installed on one side of the product, which may cause injury to users or workers. There are problems in that it takes a long time and a large amount of work because a number of processes are required to form the bent portion, and a lot of labor costs are required because the manual work must be made for the insertion of the ball bearing.

As a result, many slide rails are manufactured and assembled in China, where labor costs are low instead of expensive labor costs, and are imported back into Korea. However, the search for a variety of manufacturing methods that can be cheaper than China is emerging as a challenge.

The present invention is to solve the problems as described above, the extrusion molding through an extrusion die with an aluminum alloy instead of the roll forming or pressing method, the outer rail die groove and the inner rail die groove formed on the extrusion die in one body or another body By extruding continuously by extrusion molding, the extruded outer rail and the inner rail are configured to be slidably coupled to each other by the semicircular recess and the semicircular protrusion, and the manufacturing process is large because no separate ball bearing is required between the outer rail and the inner rail. The purpose of the present invention is to provide an aluminum slide rail and a method of manufacturing the same, which can shorten and increase the production efficiency, and greatly increase the product output per hour, and contribute to the domestic sales as well as the export with price competitiveness.

In order to achieve the above object, the present invention is a cross-section is formed in the 'c' shape and the semi-circular recess is formed on the upper and lower inner surfaces, respectively, and the outer rail of the aluminum material formed in the longitudinal direction long set length grooves;

The cross section is formed in an inverted 'C' shape symmetrically in the vertical direction with the outer rail, and the upper and lower ends are positioned to correspond to the upper and lower inner surfaces of the outer rail so that semi-circular protrusions corresponding to the semi-circular recesses are formed at the upper and lower ends, respectively. It is made of an inner rail of the aluminum material formed in the long set groove in the direction;

The outer rail and the inner rail have a feature of extrusion molding an aluminum alloy.

The upper and lower semicircular recesses of the outer rail may further form guide recesses, and the upper and lower ends of the inner rail may further include guide protrusions inserted into the guide protrusions to further reinforce the coupling force of the inner rail in the outer rail. .

In addition, the manufacturing method of the present invention is to heat the aluminum alloy to 400 ~ 530 ℃ to make a flow state, to advance while compressing the molten aluminum alloy molding material, and through the extrusion die (Die) to continuously pass the outer rail and inner rail Extruded;

The extruded die has an outer rail die groove having a semicircular recess on the upper and lower inner surfaces thereof in a 'c' shape, and is symmetrically perpendicular to the outer rail die groove, and the upper and lower ends thereof are positioned on the inner surface thereof to correspond to the semi-circular recess. Semi-circular protrusions are characterized in that the inner rail die grooves are formed in the upper and lower ends, respectively.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a front view showing an appearance of the extrusion die formed with the outer rail die groove used in the manufacturing process of the present invention, Figure 2 is a front view showing the appearance of an extrusion die formed with the inner rail die groove used in the manufacturing process of the present invention. 3 is a perspective view showing a state in which the outer rail and the inner rail extruded through the outer rail die groove and the inner rail die groove are embodiments of the present invention, and FIG. 4 is an outer rail and the inner rail of the embodiment of the present invention; An exploded perspective view showing a separated state, Figure 5 is a front sectional view of FIG.

Aluminum slide rail 1 of the present invention, the outer rail 10 is fastened and fixed to the side wall of the drawer support, one side is fastened and fixed to both sides of the drawer body, the other side is inside the outer rail 10 Sliding coupled is composed of the inner rail 20 which is sliding in the front and rear or left and right directions in the outer rail (10). Grease 30, which is a lubricating oil that reduces friction and induces smooth operation, is introduced between the inner rails 20 that are slidably moved in the fixed outer rails 10.

The outer rail 10 is made of aluminum, the cross-section is formed in a 'c' shape, the semi-circular recesses 11, 12 are formed on the upper and lower inner surfaces, respectively, and the set long groove 15 in the longitudinal direction at the center side ) Are formed and fixed to sidewalls of a drawer support (not shown) by fastening means such as bolts.

The inner rail 20 is made of aluminum, the cross section is formed in an inverted 'C' shape symmetrical in the vertical direction with the outer rail 10, the upper and lower ends are positioned to correspond to the upper and lower inner surface of the outer rail (10) And semi-circular protrusions 21 and 22 corresponding to the semi-circular recesses 11 and 12 are formed at the upper and lower ends, respectively, and a set long groove 25 is formed at the center side in the longitudinal direction, respectively, by fastening means such as bolts. It is fixed to both sides of a drawer body (not shown).

Figure 6 is a front sectional view showing a coupling of the outer rail and the inner rail formed with a guide recess in another embodiment of the present invention, the upper and lower semi-circular recess 11 of the outer rail 10 of the present invention aluminum slide rail (1) (12) The guide recesses 13 and 14 are further formed on the inner side, and guide protrusions 23 and 24 inserted into the guide recesses 13 and 14 on the upper and lower ends of the inner rail 20 corresponding thereto. By further forming, of course, the coupling force of the inner rail 20 in the outer rail 10 may be further reinforced.

Looking at the manufacturing method of the present invention aluminum slide rail having such a configuration as follows.

First, the aluminum alloy is heated to a flow state, and the aluminum alloy molding material in the molten state is pressed while advancing, and passed through the extrusion dies 40 and 50 to the outer rail 10 and the inner rail 20. It is good to extrude continuously.

At this time, the extrusion die 40, 50 has an outer rail die groove 41 and semi-circular recesses 42, 43 formed on the upper and lower inner surfaces of the 'C' shape, and the outer rail die groove 41, respectively. The inner rail die groove 51 is formed in the upper and lower ends of the semi-circular protrusions 52 and 53 corresponding to the semi-circular recesses 42 and 43 so that the upper and lower ends thereof are symmetrical in the vertical direction.

In more detail, the aluminum alloy is manufactured into an extrusion billet, and the billet is heated, followed by extrusion molding in an extruder. First, an ingot of the aluminum alloy is dissolved in a melting furnace, and the most It solidifies by a general semi-continuous casting method, and casts aluminum alloy into a billet (not shown).

The component ratio of the aluminum alloy at this time is listed as an example as follows.

0.5 to 2.1% by weight manganese,

0.15 to 1.0% by weight of magnesium,

0.1 to 0.3% by weight of zinc,

0.01 to 0.35% by weight of iron,

0.05 to 1.2% by weight of silicon,

0.01 to 0.25% by weight of chromium,

0.01 to 0.25% by weight of titanium,

0.01 to 0.5% by weight of copper,

The balance is made of aluminum.

The addition of manganese contributes to the strength, and the addition of magnesium improves the fineness of the final grain size and the strain hardening ability of the material and changes the oxide layer to positively affect the corrosion properties and increase the extrudability. The addition of zinc has a strong positive effect on corrosion resistance and improves the recyclability of the alloy. The addition of iron is required for improved corrosion resistance. Silicon content is necessary to control and optimize the grain size distribution of the particles. The addition of chromium increases the extrudability but is necessary for recyclability negatively on the pull-out. The addition of titanium is to further optimize the corrosion resistance. The addition of copper is due to the strong negative effect on corrosion resistance and the negative effect on extrudability by addition of small amounts.

The cast billet may be extruded by an extruder (not shown) by heating to an extrusion processing temperature of 400 to 530 ° C. At this time, the molten aluminum alloy molding material is compressed by a screw or hydraulic pressure at a compression ratio of 20-200 to move forward. The die is extruded through the dies 40 and 50 at a speed of 15 to 125 m per minute.

At this time, before extruding the billet, the homogenization furnace is heated for 5 to 15 hours at a temperature of 520 to 580 ° C., followed by a homogenization heat treatment leading to air cooling at room temperature, thereby maintaining the extrudability, corrosion resistance, processability, and the like. It can be used as a structural material or a building material of a vehicle by improving the level of alloy.

The extruded dies 40 and 50 have an outer rail die groove 41 and semi-circular recesses 42 and 43 formed on upper and lower inner surfaces thereof in a 'c' shape, and the outer rail die grooves 41 and The inner rail die groove 51 is formed in the upper and lower ends of the semi-circular protrusions 52 and 53 corresponding to the semi-circular recesses 42 and 43 so as to be vertically symmetrical and the upper and lower ends thereof are positioned on the inner side thereof. Semi-circular recesses 11 and 12 are formed inside and outside the outer rail 10 of the aluminum slide rail 1 of the present invention formed through the extrusion dies 40 and 50, and the inner rail 20 The semi-circular protrusions 21 and 22 corresponding to the semi-circular recesses 11 and 12 are formed in the upper and lower ends, and are continuously extruded. The outer rail 10 and the inner rail 20 of the aluminum slide rail 1 of the present invention thus formed are continuously extruded at a speed of 15 to 125 m per minute.

When the aluminum slide rail 1 of the present invention is manufactured as described above, the inner rail 20 slides in the outer rail 10 by filling grease 30 between the outer rail 10 and the inner rail 20. When the frictional force is reduced, smooth operation is induced, the operation noise is prevented, and the contact portion is prevented from being shaved or pierced by friction, thereby further extending the service life.

The aluminum slide rail 1 of the present invention manufactured as described above is coupled to the inner side of the outer rail 10 fixed to the sidewall of the drawer support, and fixed to the side of the drawer, and the inner rail 20 sliding along the opening and closing of the drawer. As the conventional ball bearing is not slid by the conventional ball bearings, the conventional ball bearings are integrally protruded from the upper and lower ends of the inner rails 20 by the semicircular protrusions 21 and 22 to be extruded at a time, thereby greatly improving production efficiency. In addition, the parts are simplified, so that the product is made very robust with almost no breakdowns, and is made of aluminum alloy, which does not rust and has a beautiful gloss. In addition, the smooth sliding by the grease hardly generates noise, which enables the product to be advanced.

As described above, the present invention is extruded through an extrusion die with an aluminum alloy instead of a roll forming or pressing method, by continuously extruding by forming the outer rail die groove and the inner rail die groove in one body or another body, The extruded outer rail and inner rail are slidably coupled to each other by semi-circular recesses and semi-circular protrusions. Since the ball bearings are not required between the outer rail and the inner rail, the manufacturing process is greatly shortened and the production efficiency is increased. As a result, the production of products per hour not only increases greatly, but also has price competitiveness, which can contribute not only to domestic sales but also to export.

In addition, the parts are simplified, so that the product is not only hardly manufactured with almost no breakdown, but also made of aluminum alloy, which does not rust, has a beautiful gloss appearance, and almost no noise due to smooth sliding by grease. There is an effect that can be advanced.

Claims (3)

delete An outer rail formed of an aluminum material having a cross-section formed in a 'c' shape, having semi-circular recesses formed on upper and lower inner surfaces thereof, and having a set long groove formed in a longitudinal direction at a center thereof; The cross section is formed in an inverted 'C' shape symmetrically in the vertical direction with the outer rail, and the upper and lower ends are positioned to correspond to the upper and lower inner surfaces of the outer rail so that semi-circular protrusions corresponding to the semi-circular recesses are formed at the upper and lower ends, respectively. It is made of an inner rail of the aluminum material formed in the long set groove in the direction; The outer rail and the inner rail are extruded from an aluminum alloy; The upper and lower semi-circular recesses of the outer rail further form guide recesses, and the upper and lower ends of the inner rails further include guide protrusions inserted into the guide recesses to further reinforce the coupling force of the inner rails in the outer rails. Aluminum slide rail made. Heating the aluminum alloy to 400-530 ° C. to bring it into a fluid state, advancing the molten aluminum alloy molding material with compression, and passing the extrusion rail through an extrusion die to continuously extrude the outer rail and the inner rail; The extruded die has an outer rail die groove having a semicircular recess on the upper and lower inner surfaces thereof in a 'c' shape, and is symmetrically perpendicular to the outer rail die groove, and the upper and lower ends thereof are positioned on the inner surface thereof to correspond to the semi-circular recess. Method for manufacturing an aluminum slide rail, characterized in that the inner rail die groove is formed in each of the upper and lower semi-circular protrusions.

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