JPS634040Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a linear motor type metal plate piling device, and its purpose is to apply the braking force of the linear motor in the deceleration zone only to the metal plate that is being decelerated. Our purpose is to provide piling equipment.

In the generally known linear motor type piling device, in which multiple linear motors 2 installed in parallel in the deceleration zone Lo are turned on and off at the same time to perform piling, in order to avoid rear-end collisions of plates, , it was necessary to make the distance c between the leading plate 4a and the trailing plate 4b after the completion of deceleration longer than the length of the deceleration zone Lo (see FIG. 1).

Furthermore, in a high-speed piling device in which a plurality of linear motors 2 arranged in parallel in a deceleration zone can be turned on and off individually, the leading plate 4a after deceleration is completed;
The distance _c1 from the trailing plate 4b is smaller than the deceleration zone Lo and larger than the unit length M of the linear motor 2 (see FIG. 2).

In such a high-speed piling device, when the tip of the plate enters the excitation deceleration zone, the braking force from the linear motor acts on the tip, and the inertia force due to the high speed of the plate acts on the part that enters the deceleration zone. Forces in opposite directions may act between the leading and trailing ends of the plate, which may have an undesirable effect on the plate. To avoid this, appropriate control measures are required to prevent braking force from being applied from the tip of the plate.

This invention was made in view of the above, and will be explained below based on the embodiment shown in the drawings.
In FIG. 3, 1 is a plate conveyor, 2 is a plurality of deceleration linear motors connected to the tip of the conveyor 1 in the direction of plate material propulsion, and arranged in parallel in the same direction. It can be turned on and off.

Reference numeral 3 denotes a gap holding device, which is installed on the linear motor 2 and protects its magnetic pole surface. 4 is a conveying metal plate, 5 is a conveying device, and 6 is a stopper attached to the unloading device 5.

In the linear motor-type metal plate piling device having the above configuration, the present invention provides that each linear motor 2
Detectors 7a to 7e are connected to the inlet and outlet sides of the linear motors 2 to detect the passage of the tail end of the conveying metal plate 4, and are connected to the detection devices 7a to 7e to turn on each linear motor 2 by output signals from the detectors 7a to 7e. - A drive power switch controller 8 for performing off control is provided.

Note that 9 is a power supply device connected to the drive power switch controller 8, and 10 is a power supply.

Since the present invention has the above configuration, the conveyor 1
The tail end of the metal plate 4 conveyed by the detector 7
When detected by e, the linear motor 2d in the deceleration zone is excited, and a braking force is applied to the plate. The plate moves in the propulsion direction while being decelerated, and the linear motor 2d
When the tail end of the plate is detected by the detector 7d, the output signal activates the drive power switch controller 8 to demagnetize the linear motor 2d. Subsequently, the linear motor 2c is excited to exert a braking force on the plate.
In this way, by repeating the same control operations as described above, after passing through the linear motor 2a at the tip in the propulsion direction, it hits the stopper 6 and is piled onto the unloading device 5.

As described above, according to the present invention, when the tail end of the conveying metal plate passes the detector on the inlet side of each linear motor, it excites the linear motor located in front of the detector, and also excites the linear motor located in front of the detector. Since the located linear motor is demagnetized, there is no braking force applied to the tip of the plate, and the distance c between the plates can be made smaller than the deceleration zone Lo, making it suitable for application to high-speed piling equipment. be.

[Brief explanation of drawings]

1 and 2 are side sectional views showing a conceptual diagram of a conventional device, and FIG. 3 is a conceptual side sectional view of a piling device to which the present invention is applied. In the figure, 1...conveyor, 2, 2a~
2d... Linear motor, 3... Gap holding device, 5... Unloading device, 6... Stopper, 7, 7a
~7e...Detector, 8...Drive power supply opening/closing controller,
9...Power supply device, 10...Power supply.

Claims (1)

[Scope of utility model registration request] A plurality of deceleration linear motors 2d, 2c, 2b, .
Detectors 7e, 7d, 7c, etc. are provided on the inlet and outlet sides of each linear motor to detect the passage of the tail end of the conveyed metal plate moving on the linear motor, so that the tail end of the conveyed metal plate is A drive power supply that controls each linear motor so that when it passes a detector on the inlet side of the linear motor, it excites the linear motor located in front of the detector and demagnetizes the linear motor located behind the detector. A linear motor type metal plate piling device characterized by being equipped with an opening/closing controller.