JPS5950917A - Method and device for manufacturing lace, sash, or the like made of metallic sheet - Google Patents

Abstract

PURPOSE:To remove internal stress, to stabilize a bent form and to enhance its rigidity, by performing a forced twisting treatment of the axial line of a strip material after bending its cross section. CONSTITUTION:A strip material is passed through a rocking device C to remove its internal stress, after bending its cross section by a group A of rolls. That is, a motor for driving the device C is rotated constantly, and a holder 4 formed in one body with a disk 2 repeats a vertically contra-turning motion by transmitting the turning of an eccentric cam 6 connected to the disc 2 through a link bar 5. The contra-turning motion rocks clockwise and counterclockwise the axial line of the material passing through the inside of a slit 3, and acts to twist the axial line because the front and rear ends of the material are supported like fixedly by the groups A, B of rolls. Accordingly, the internal stress is removed, and the bending treatment in the axial direction by the group B of rolls is performed in a state of nil stress.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a metal plate molding in which a metal band-like strip material is bent and formed into a predetermined shape.

The present invention relates to a method and apparatus C1 for producing sashes.

BACKGROUND ART In general, when manufacturing a metal plate molding or Zara Shirano 1, first a metal band-shaped strip material is cut into a predetermined cross-sectional shape (
(See Figure 1) (After bending with two rolls 14f A,
The axial direction may be curved in a perpendicular direction by roll group B (see Figure 2a).

l)), its cold-open forming (-In this case, the strip material is forcibly formed into a predetermined cross-sectional shape (-2) by the roll group A (-). This stress appears during secondary processing in roll group B and causes twisting, warping, or waving of the curved inner surface in the right angle direction. ＞2 The strip material must be curved with a large bending force.

DISCLOSURE OF THE INVENTION The present invention provides a method for manufacturing metal plate moldings and satsoshes that can easily remove such internal stress.
With the goal.

That is, in the method and apparatus for manufacturing metal plate moldings and sashes according to the present invention, the cross-sectional bending process (1) forcibly twisting the axis of the strip material (2) removing internal stress In addition, the processing is carried out at the rear of the group of cross-section forming rolls by means of a swinging device capable of reversing in the clockwise and counterclockwise directions. has been done.

BEST MODE FOR CARRYING OUT THE INVENTION In the actual example shown in FIGS. 2a and 2b, rolls 7+7': A
Immediately after the cross-section bending of the strip material in the shape of a gold band plate is performed, and before the strip material is carried into the roll group B (the strip material passes through the second swinging device C).

As shown in FIGS. 3 and 4, this rocking device I#C is arranged in a circular space (two types of rotation = one function) of the support frame 1.
It has 7 disks 2. This disc 2 has a slit holder 4 with a slit 3 corresponding to the slit 3 in cross section, and one end of a linker 5 is attached to an eccentric attachment on the disc surface. The fltl end of the linker 5 is pivotally mounted on an eccentric cam 6 (-), and the t1M center cup 6 is configured to be mounted on the rotating shaft of the drive motor 7. +7 material A is inserted into the path C in the direction of the arrow shown in Fig. 4, and the holder 4 is arranged so that the slit 3 is positioned 1d on the transport path X, and the support frame 1 is not carried in. 3 slits on the side
A pinch roller 8 or a guide block is attached to guide and support the strip material.

In this swinging device C, while feeding the IJ strip material (with a predetermined cross-sectional bent shape) fed out from the roller group A to the roller group B (-), the strip material is moved into the slit 3 of the holder 4.
When inserted twice, it will be supported by ζ2. A drive motor 7 of this rocking device C is constantly rotating, and an eccentric cam 6 is connected to a holder 4 integrated with the disk 2 via a linker 5.
0) Rotating up and down (2 reverse rotations) The reversal rotation of the rectangle rotates the axis of the strip material inserted into the slit 3 clockwise 0 counterclockwise (2 oscillations) , since the strip material is fixedly supported by roller groups A and B on the front and rear sides, it acts to twist the axis of the strip material. In this twisting, roller #B moves in the perpendicular direction C''-'fIt. If it is made larger on the outer surface side to be curved, bending in the right angle direction can be facilitated, and the shape of the eccentric cup 6 can be specified so that the upward stroke of the linker 5 is large as shown in FIG.

In this way, the internal stress is removed by bending the strip material into a predetermined cross-sectional shape (-) and twisting the axis of the strip material. To enable axial curvature processing to be performed under stress-free conditions.

Also, c) The outer surface side of the IJ tube material in the right angle direction is twisted more easily to make it easier to bend.哄(2. With this additional oscillating device, it is possible to automatically add 1000 # processing during the continuous conveyance of the strip, so that continuous bending processing of moldings and sashes can be efficiently processed. (- becomes.

Possibility of use on the maternity canal In addition, the molding made of the umbrella handle plate according to the present invention, the ridge ai
According to the manufacturing method and equipment (2), it is possible to stabilize the bent shape and make it highly rigid, which improves workability, and enables continuous bending processing, which greatly improves productivity. be.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a part of the metal plate molding 5 nuts manufactured by the present invention, FIG. The figure is a plan view of the same device, Figure 3 is a front view showing the rocking device in the second position, and the fourth is a sectional view on the fourth side.A, B: roller group, C rocking device, three Nisrit , 4° holder, 5 Ni links (-16: eccentric rotation force)...

Claims (4)

[Claims] (1) Cut the metal strip material into a predetermined cross-sectional shape (-
After bending and forming, the axial line is twisted in a clockwise direction and counterclockwise direction (- and in a counterclockwise direction) with the front and rear sides fixed before bending. A method of manufacturing metal plate moldings and sashes. (2) The method for manufacturing metal plate moldings and sashes as set forth in claim 1, wherein the outer surface side of the strip material to be curved in the right angle direction is twisted more than the inner surface side (-1 degree). (3) Between a group of forming rolls that bends a strip material in the form of a fully open band plate into a predetermined cross-sectional shape and a group of forming rolls that curve at right angles to the axial direction of the forming roll group C2, when the strip material is supported on its axis Both (=, its axis is clockwise 1 counterclockwise (
A manufacturing device for metal plate moldings and sashes, characterized by being equipped with a swinging device that rotates in two reverse rotations. (4) The above-mentioned swinging device is configured to adjust the cross-sectional shape of the strip material (i.e., a holder with open molded slits corresponding to the two).
It is possible to insert the axis of the tube material (1 conveyance path (2 devices), and the holder C is configured by connecting an M6 rotary cam (2 devices). Manufacturing equipment for metal plate moldings and sashes.