JPH0344343Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This invention relates to a forming roll device.

(Prior Art) For example, a gutter-like elongated body such as a main body of a lighting fixture, a reflector, etc. is formed by vertically bending both side walls at an appropriate angle.
Conventionally, to form this continuously, a plurality of forming rolls were arranged in a straight line, with the flange angles on both sides gradually approaching the desired shape with respect to the center. I am using it.

FIG. 9 and FIG. 10 show the forming rolls in the conventional configuration, R11 and R12 are the upper rolls, R2
1, R22 indicates a lower roll, and the flange F of the upper roll has a taper angle that increases with respect to the center as it approaches the end of molding. Each lower roll is formed to maintain a constant distance from the upper roll.

The figure shows only two pairs of forming rolls,
In reality, a plurality of forming rolls are prepared depending on the forming angle. When the metal plate P is successively passed between such forming rolls, both sides of the metal plate P are gradually bent according to the flange angle of each roll.

However, when processing using a roll device with such a configuration, it is only possible to bend the product at an angle determined by the flange angle, as described above, and it is impossible to process it into other shapes with different angles. It is. To perform machining at such an angle, prepare a separate forming roll that matches that angle, and
This needs to be installed in place of the existing roll.

(Problems to be Solved by the Invention) The purpose of this invention is to make it possible to form the upright angles of the side walls on both sides at any desired angle when processing and forming a gutter-like elongated body.

(Means for Solving the Problems) This invention consists of arranging multiple pairs of forming rolls, each consisting of an upper roll and a lower roll, in a straight line, with the upper and lower rolls of each forming roll facing each other. Variable rolls are installed on both sides of the part, and each variable roll is installed so that its rotation axis is closer to the right angle to the rotation axis of the forming roll as the variable roll is closer to the final process, and its inclination angle is It is characterized by being freely adjustable.

(Example) The configuration and operating principle of this invention will be explained with reference to FIG. The figure illustrates a configuration using forming rolls 1A at the first stage to forming rolls 1F at the sixth stage. Each forming roll has an upper roll 2 and a lower roll 3 as a pair. The upper roll 2 can be raised and lowered by a handle 4 in accordance with the metal plate 5 to be processed. It is assumed that each of the upper and lower rolls is composed of two rolls arranged in parallel (see the middle row of FIG. 1).

According to this invention, variable rolls 6A to 6F are arranged close to both sides of the upper and lower rolls facing each other. The rotating axis of the variable roll attached to the first stage forming roll is almost parallel to the rotating axis of the forming roll, but as it approaches the forming roll of the sixth stage, which is the final stage, It is changed so that it is perpendicular to the rotation axis.

As shown in the upper part of FIG. 1, when the metal plate 5 is bent at right angles on both sides in the final process, the rotation axis of the variable roll attached to the final stage forming roll is the rotation axis of the forming roll. As shown in the lower part of FIG.

FIG. 2 shows changes in each variable roll. As will be understood from this, the variable roll is configured to rotate around the outer edge a of the upper roll 2.

Processing of the metal plate to be processed is started by inserting its tip into the first-stage forming roller 1. As a result, the metal plates are sequentially transferred while being pinched by the upper and lower rollers. During this transfer process, both sides are gradually bent as shown in the upper part of FIG. As a result, the metal plate is processed into a gutter shape.

When changing the processed shape of a metal plate, the angle of the rotating shaft of the variable roll with respect to the forming roll may be adjusted depending on the object to be changed. For example, if the bending angles on both sides of the metal plate in the final step are smaller than a right angle, the angle of the rotating shaft of the variable roll attached to the final stage forming roll may be adjusted to match that angle. This is adjusted by rotating the variable roll so that the angle of the rotation axis is changed.

An example of this adjustment mechanism will be explained with reference to FIG. 3 and subsequent figures. The variable roll 6 is fixed to a support member 11 having a square shaft, and a plate-shaped support member 12 is fixed to this support member 11. Furthermore, this support member 12 is fixed to a first gear 13. This gear 13 meshes with the second gear 14,
By the rotation of the gear 14, the edge a of the upper roll 2
Rotate around the center. The gear 14 is attached to a variable shaft 15 and rotatably supported by a fixed stand 16.

In the figure, 2A and 3A are the rotating shafts of the upper and lower rolls 2 and 3, and 2B and 3B are gears fixed to the rotating shafts, which mesh with each other, so that either rotating shaft can be rotated by the drive source. Accordingly, the upper and lower rolls 2 and 3 rotate in synchronization with each other.

In the above configuration, if the variable shaft 15 is appropriately rotated from the outside, the support members 11 and 12 are rotated via the gears 14 and 13, and thereby the inclination angle of the rotation shaft of the variable roll can be freely changed. will be done. What is necessary is just to set this inclination angle according to the bending angle of processing symmetry.

The configuration shown in the figure is equipped with a mechanism that can change the inclination angles of the rotation axes of all the variable rolls all at once. To explain the mechanism, the variable shafts 15 attached to each variable roll 6 are all directly connected. A worm wheel 21 is attached to one end thereof. The shaft 23 of the worm 22 that engages with the worm wheel 21 is rotatable from the outside.

Therefore, when the shaft 23 is rotated, all the variable shafts 15 rotate in unison and in synchronization with each other.
As a result, the inclination angle of the rotating shaft of the variable rolls can be changed all at once.

(Effects of the invention) As detailed above, according to this invention, even if the bending angle is changed when bending the side edge of a metal plate, any bending can be achieved by simply rotating the gear from the outside. Since the angle can be changed, the adjustment is extremely easy, and even if the bending angle is different, there is no need to change the forming roll as in the conventional case.

[Brief explanation of drawings]

Fig. 1 is a plan view and front view for explaining the operation of this invention, Fig. 2 is an enlarged side view of the same, Fig. 3 shows an embodiment of this invention, and Fig. 4 is a sectional view taken along the line A-B. Figure 4 is the same side view, Figure 5 is a detailed partial view of Figure 3,
Fig. 6 is a sectional view taken along line C-D in Fig. 5, Fig. 7 is a partial left side view of Fig. 5, Fig. 8 is a partial left side view of Fig. 3, and Figs. 9 and 10 are conventional examples. FIG. 1A to 1F... Forming roll, 2... Upper roll,
3...Lower roll, 5...Metal plate, 6A-6F...
Variable roll, 15...variable axis.

Claims (1)

[Claims for Utility Model Registration] A plurality of pairs of forming rolls, each consisting of an upper roll and a lower roll, are arranged side by side along a straight line, and each of the above-mentioned forming rolls is provided on both sides of the opposing portions of the upper and lower rolls. , a forming roll device comprising a variable roll for bending both sides of a metal plate to be processed sandwiched between the forming rolls, wherein the rotation axis of the variable roll is set to the outer edge of the upper roll. The first gear is supported by a support member fixed to a first gear that rotates about the center, and
A second gear is provided that meshes with and rotates the gear, and rotation of the support member by the first and second gears causes the rotation axis of each of the variable rollers to be aligned with the rotation axis of the forming roll. A forming roll device that can be tilted in a direction perpendicular to the rotation axis.