JPH1085846A - Iron plate bending equipment for refrigerator doors - Google Patents

Abstract

(57) [Problem] To provide an iron plate bending device for a refrigerator door in which a bending angle can be freely and easily changed. SOLUTION: Rollers 3 installed close to each other so that a door iron plate 10 located therebetween is bent.
In a bending apparatus for an iron plate 10 for a refrigerator door, comprising: a mold 2 and a mold 21, 22, 23, 24;
Although a plurality of 1, 22, 23, and 24 are provided, each mold 2
On the side surfaces of the rollers 1, 22, 23, and 24 facing the roller 30, inclined surfaces 20a that are inclined at mutually different angles are formed, and a plurality of dies 21, 22, 23, and 24 are selectively applied to the roller 30. , And selectively adjusts the angle bent by the roller 30 and the molds 21, 22, 23, and 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iron plate bending apparatus for a refrigerator door, and more particularly, to a method in which a plurality of dies having mutually different angles are selectively brought into close contact with a roller to form an iron plate. By bending,
The present invention relates to an iron plate bending device for a refrigerator door that can easily change a bending angle.

[0002]

2. Description of the Related Art Generally, a door is made of an iron plate and an inner box which are connected to each other, and a heat insulating material filled between them.
Both ends of the iron plate are bent inward, and the inner box is joined to this end. FIG. 3 is a view showing a conventional bending device for bending both ends of a conventional iron plate. As shown in the drawing, the conventional bending device is provided with a clamp 2 and a roller 3 which are disposed in close contact with each other so that the door iron plate 1 is pressed and bent. An inclined surface 2a inclined at a predetermined angle is formed on a side surface of the clamp 2 facing the roller 3, so that the door iron plate 1 is bent along the inclination of the inclined surface 2a. With such a bending device, the iron plate for a door 1 inserted between the clamp 2 and the roller 3 installed close to each other is bent along the inclined surface 2a of the clamp 2 when the roller 3 rotates.

However, in such a conventional bending device, it is only possible to change the bending angle of the iron plate for the door by changing the clamp, so that it is complicated and difficult to change the bending angle. there were.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide an iron plate bending apparatus for a refrigerator door which can freely and easily change a bending angle. To provide.

[0005]

According to the present invention, there is provided an iron plate bending apparatus for a refrigerator door according to the present invention, wherein rollers arranged close to each other are provided so that an iron plate for a door located therebetween is bent. In the iron plate bending device for a refrigerator door including a mold and a mold, a plurality of the molds are provided, and a side surface of each mold facing the roller has an inclined surface inclined at a different angle from each other. An adjoining means is provided for selectively bringing the plurality of molds closer to the roller, and an angle of bending by the roller and the mold is selectively adjusted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a partial cross-sectional perspective view showing a refrigerator door using an iron plate for a refrigerator door whose both ends are bent by a bending apparatus applied to the present invention. As shown in the figure, the door has an iron plate 10 with both ends bent.
An inner box (not shown) having both ends coupled to the bending portion of the iron plate 10 and a heat insulating material (not shown) filled in a space between the iron plate 10 and the inner box are included.

[0007] Both ends of the iron plate 10 are bent at an obtuse angle and then bent 90 degrees three times to bend as shown in the drawing. The present invention relates to a device for bending both ends of a door iron plate 10 at an obtuse angle, and FIG. 2 is a view showing a bending device according to the present invention. As shown in the drawing, the bending apparatus for the iron plate 10 for a door includes four dies 21, 22, 23, and 24 having inclined surfaces that are inclined at a fixed angle to each other on an outer surface, and dies 21, 22, which are located on an upper side. , 23, and 24 are rotatably installed on the outer periphery of the roller 30, and four molds 21, 22, 2,
One mold 21, 22, 2 required in 3, 24
3 and 24 and a proximity means for bringing the roller 24 into proximity to the roller 30.

More specifically, the four dies 21, 22, 23, and 24 are arranged concentrically, and the outside thereof is branched at the center, and the respective dies 21, 2
A connecting member 40 connected to 2, 23, 24 is installed. The proximity means includes a motor 50 connected to the center of the connecting member 40 via the rotation shaft 51. That is, the motor 50 is connected to the dies 21, 22, 2,
By rotating the molds 3, 24, the molds 21, 22, 23, 24 approaching the roller 30 are changed to adjust the bending angle. Each mold 21, 22, 2,
An inclined surface 20a inclined at a different angle from each other is formed on the outer surfaces of 3, 24.

A cylinder 60 for moving the operating shaft 61 up and down is installed below the connecting member 40, and the upper ends of the operating shaft 61 are connected to the connecting member 40 so that the dies 21, 22, 23, 24, the mold 21
The bent door iron plate 10 can be separated between the rollers 22, 23, 24 and the roller 30.

The operation of the iron plate bending apparatus for a refrigerator door according to the present invention, constructed as described above, is as follows. Roller 30 and mold 2
After being positioned between 1, 22, 23, and 24, the cylinder 60 is operated, and the dies 21, 22, 23, and 24 are pressed by the rollers 30. Thereafter, the roller 30 and the molds 21 and 2
When rotated along the outer surfaces of 2, 23, and 24, the ends of the iron plate for door 10 are bent along the inclined surfaces formed on the outer surfaces of the dies 21, 22, 23, and 24.

On the other hand, in order to change the bending angle, when the motor is rotated, the dies 21, 22, 23, 2
4 rotate by 90 degrees, or rotate by 180 degrees or 270 degrees, and molds 21, 22, 23, having different inclination angles.
It comes to approach the 24 rollers 30.

[0012]

As described above, the iron plate bending device for a refrigerator door according to the present invention can easily and conveniently change the bending angle of the iron plate for a door by rotating a mold using a motor. There are advantages that can be.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a door iron plate bent by a bending device according to the present invention.

FIG. 2 is a plan view showing an iron plate bending device for a refrigerator door according to the present invention.

FIG. 3 is a plan view showing a conventional bending device for a refrigerator door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Iron plate for doors 21, 22, 23, 24 Die 30 Roller 40 Connecting member 50 Motor 60 Cylinder

Claims (3)

[Claims] 1. An iron plate bending apparatus for a refrigerator door, comprising: a roller and a mold disposed close to each other such that a door iron plate positioned therebetween is bent. An inclined surface inclined at a different angle is formed on a side surface of each of the molds facing the roller, and proximity means for selectively bringing a plurality of the molds closer to the roller is provided. An iron plate bending device for a refrigerator door, wherein an angle bent by the roller and the mold is selectively adjusted. 2. The plurality of molds are provided concentrically, and the proximity means is branched from a center of the plurality of molds,
2. The iron plate bending apparatus for a refrigerator door according to claim 1, further comprising: a connecting member connected to each of the plurality of molds; and a motor connected to a center of the connecting member. 3. The apparatus of claim 2, further comprising a cylinder coupled to one side of the connecting member with an operating shaft interposed therebetween, and separating the mold from the roller.
An iron plate bending device for a refrigerator door as described above.