JPS61273279A - Rolling device for clad sheet - Google Patents

Abstract

PURPOSE:To raise the press-contact property of metallic sheets, to control a draft, and to adjust the sheet thickness ratio by driving one of a pair of rolling rolls, using the other as an idle roll, and making a different speed relation between both the rolls. CONSTITUTION:In a pair of rolling rolls 1, 2, the roll 1 is connected to a driving mechanism 3, and the roll 2 is used as a freely rotatable idle roll. Also, coils 6, 7 to which metallic sheets Pa, Pb are wound, and a coiler 8 for winding a rolled clad sheet P are provided. The rolling roll 1 is driven to rotate in a direction as indicated with an arrow A, and the metallic sheets Pa, Pb which are fed out of the coilds 6, 7 are supperposed and inserted between both the rolling rolls 1, 2. As a result, the non-driving rolling roll 2 rotates in a direction as indicated with an arrow B as the metallic sheets Pa, Pb are move and deformed. Accordingly, the metallic sheets Pa, Pb are rolled, and a clad sheet P is obtained. The speed of the roll 2 is determined by moving speed and the deformation ratio of the material to be rolled, and its speed becomes different from the regular roll 1. In this way, the draft of the metallic sheets Pa, Pb is controlled, and the sheet thickness ratio is adjusted.

Description

[Detailed description of the invention] [Industrial application fields] The present invention relates to a clad plate rolling apparatus.

[Prior Art] In a conventional clad plate rolling machine, a drive mechanism is connected to each of the upper and lower rolls so that both rolls are driven together, and while the rolls are rotated in opposite directions, A plurality of metal plates are stacked and inserted into the gap and rolled to bond the metal plates to obtain a clad plate.

In this case, the rolling reduction rate of each metal plate is determined not only by the rolling blade of the rolling roll but also by the circumferential speed of the roll. I try to control the thickness.

[Problems to be Solved by the Invention] However, in the above rolling apparatus, in order to perform different speed operation, each rolling roll is connected to a drive mechanism, and two drive mechanisms are required. There is a problem that the device becomes complicated.

In view of the above circumstances, an object of the present invention is to provide a rolling device that can achieve different speeds with a simple configuration.

[Means for Solving the Problems] In the rolling apparatus of the present invention, one of a pair of rolling rolls is driven by a drive mechanism, and the other is rotated freely as an idle roll.

[Function] In the above rolling equipment, when metal plates are stacked and inserted into the gap between the rolling rolls and rolling is performed, the idle rolls
It rotates according to the movement of the material being rolled without being directly related to the drive roll. Then, a true speed relationship is automatically established between the idle roll and the drive-side roll, contributing to a reduction in rolling force.

[Embodiment] The drawing shows a rolling apparatus according to an embodiment of the present invention, in which the upper rolling roll 1 of a pair of rolling rolls 1 and 2 is connected to a drive mechanism 3, and the lower rolling roll 2 is freely rotated. It is said to be an idol role that can be played.

4.5 is a backup roll, and 6 and 7 are metal plates Pa
, a coil wound with Pb, and 8 a coiler that winds up the rolled clad plate P.

To manufacture a clad plate using this rolling device, the upper rolling roll l is driven to rotate in the direction of arrow A, and the metal plates Pa and Pb fed out from the coil 6.7 are overlapped and placed between the upper and lower rolling rolls 1.2. Insert into the gap. Then,
The non-driven lower rolling roll 2 rotates in the direction of arrow B as the metal plates Pa5Pb move and deform, and the metal plates Pa, P
b is rolled to obtain a clad plate P. The obtained clad plate P is then wound around a coiler 8. On this occasion,
The rotational speed of the lower rolling roll 2 is determined by the moving speed and deformation rate of the material to be rolled, and usually the upper rolling roll 2! is maintained at true speed. For this reason, each metal plate P
It becomes possible to control the rolling reduction of a1Pb, and the plate thickness ratio can be adjusted.

[Effects of the Invention] The rolling apparatus of the present invention allows one of the pair of rolling rolls to freely rotate as an idle roll, thereby creating a true speed relationship between the two rolls. Therefore, with a simple configuration in which one drive mechanism is omitted, the pressure bonding properties of the metal plate can be improved due to the true velocity effect. Furthermore, since one of the rolling rolls is not driven, the diameter of this roll can also be reduced. If the diameter is made small,
Since the rolling reduction ratio can be increased with the same rolling blade, it also contributes to improving rolling efficiency.

[Brief explanation of drawings]

The drawing is a side view of one embodiment of the invention. Pa, Pb... Metal plate, P... Clad plate, 1.2... Roll roll, 3... Drive mechanism.

Claims (1)

[Claims] Equipped with a pair of rolling rolls that bond metal plates together by stacking and rolling multiple metal plates, one of these rolling rolls is connected to a drive mechanism for driving, and the other is an idle roll that can rotate freely. A clad plate rolling device characterized by: