JPS5941295B2 - Automatic magnetization method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic magnetization method for automatically magnetizing both sides of a member that can be used as a magnet member.

Conventionally, for example, when manufacturing flexible double-sided magnetic sheets,
There is no way to automatically magnetize a sheet member made of the required material, and everything is done manually. After the magnetizing member is carried to the yoke installation location, it is interposed between two yokes and placed in close contact with each other. After the magnetic work is completed, the yokes are separated, but the magnetized magnet member is attracted to one of the yokes and must be separated manually, resulting in extremely poor work efficiency and production efficiency. They were forced to do bad work. This is because when the distance between the magnetized member and both yoke surfaces is exactly the same and the magnetized member is attracted evenly, it is theoretically possible to take it out or pull it out smoothly, but it is impossible to achieve such precision. This is not possible with conventional techniques that require conventional mechanisms and human work, and as a result, the magnet member that is magnetized to one yoke surface will naturally be attracted to it. It had to happen. In the present invention, such drawbacks can be solved and the member to be magnetized can be automatically magnetized, and even after magnetization, the magnet member that is magnetized is not attracted to one of the yokes. It can be pulled out easily and smoothly without any damage, and can be transferred to the process of cutting it into the required diameter and shape, for example, without requiring any human work, which improves work efficiency and improves production. The purpose is to provide an automatic magnetization method with high efficiency.

The structure of the present invention is an automatic magnetizing means that magnetizes both sides of a magnetized member being transferred by a delivery roll by a yoke interposed in the middle, the yoke is arranged in the vertical direction of the magnetized member being transferred. The magnetic poles are placed opposite each other with different magnetic poles, and during magnetization, the yoke closely contacts both sides of the magnetized member, and when the required magnetization is completed, the upper and lower yokes are slightly narrowed relative to the magnetized member by separating means. This relates to an automatic magnetization method characterized by maintaining a gap and separating the magnetized members at the same distance, and then transporting the magnetized members using a pull-out roll or the like.
This will be explained as follows based on an embodiment shown in the drawings.

1 in the figure is an automatic magnetization device used in the automatic magnetization method of the present invention.

The magnetized member 3, which is sent out by the delivery roll 2 and requires magnetization on both sides, is magnetized between yokes 4, which are located opposite to each other with the magnetized member 3 as a boundary.

The yokes 4, 4 will be explained based on FIGS. 2 to 4.

As shown in FIG. 2, zigzag-shaped copper wires 5 that conduct the required current are arranged on one yoke surface, and are arranged at regular intervals.
Magnetic surfaces with different magnetic poles such as N pole, S pole, N pole, S pole, etc. are formed. The yoke surface facing this yoke (not shown) has a similar structure, but the magnetic poles are arranged in the opposite direction: S pole, N pole, S pole, N pole...
The two sides of the transferred magnetized member are magnetized with different magnetic poles, respectively. When magnetizing, as shown in FIG. 3, the yokes 4, 4 are magnetized by closely contacting both surfaces of the magnetizing member 3 for a required period of time.

When the magnetization is completed, both yokes 4, 4 are slightly separated from the magnetized member 3 by a separating means (not shown), and while maintaining a small gap, they are pulled out by a pull-out roll 6 and transported to the next process. It is something. Even if the distance between both yokes is wide with respect to the magnetized member 3, when the distance between both yokes is equal and the distance between the yokes 4 and the magnetized member 3 is equal, the attractive force is canceled out and becomes 0, and smooth extraction is theoretically possible. However, the wider the spacing, the more difficult and technically impossible it is to achieve such accuracy.When the spacing is widened, the distance between the magnetizing member and the yokes 4, The error will greatly affect the change in suction force, and it will stick to one of the yokes, making it impossible to pull it out automatically.

However, in the present invention, since the magnetized members are separated from each other with a small gap between them, the probability of a gap error occurring is low, and even if there is a slight error, the gap between the magnetized members and both yokes is low. The change in the attractive force itself between the yokes 4 and 4 can be small, and therefore the attractive force can be sufficiently canceled out. It is smoothly transferred to the next process by the pull-out roll 5 without being adsorbed to anything. Therefore, as in the past, the magnetized member is carried to the yoke installation location, manually placed on the yoke, and then one yoke is brought into close contact with the other yoke, and after magnetization, they are attracted in one direction. After separating the magnetized members, it takes considerable effort to transport them to the next process.
Unlike methods with poor work efficiency and production efficiency, according to the present invention, the magnet member magnetized by the yoke is smoothly conveyed to the next process without being attracted to one of the yokes, so manual work is not required. The required magnetization work can be performed continuously and automatically without the need for additional work, and the work can be performed with high production efficiency and work efficiency.

[Brief explanation of drawings]

FIG. 1 is a schematic side sectional view of an automatic magnetizing device using the automatic magnetizing method of the present invention, FIG. 2 is a schematic plan view of one yoke used in the automatic magnetizing device shown in FIG. 1, and FIG. FIG. 4 is a schematic side sectional view showing the state of the yoke during magnetization, and FIG. 4 is a schematic side sectional view showing the state of the yoke when the magnetized member is pulled out after magnetization. 1... Brake magnetizing device, 2... Delivery roll, 3... Magnetizing member, 4, 4... Yoke, 5...・Copper wire, 6...Drawer roll.

Claims (1)

[Claims] 1. In an automatic magnetizing means for magnetizing both sides of a magnetized member being transferred by a delivery roll using a yoke interposed in the middle, the yoke has different magnetic poles in the vertical direction of the magnetized member being transferred. The yoke is positioned opposite to the magnetized member, and during magnetization, it comes into close contact with both sides of the magnetized member, and when the required magnetization is completed, the upper and lower yokes maintain a small gap with respect to the magnetized member by separating means. An automatic magnetization method characterized in that the magnetization member is transferred by a pull-out roll or the like after being separated at equal intervals.