JPH0435602U

JPH0435602U -

Info

Publication number: JPH0435602U
Application number: JP1990077065U
Authority: JP
Priority date: 1990-07-20
Filing date: 1990-07-20
Publication date: 1992-03-25

Description

[Brief explanation of the drawing]

第１図は、この考案の一実施例によるリニア搬
送装置の構成図、第２図はこの考案の一実施例に
よるリニアモータと２次導体の重なり率の変化に
よる電流変化を説明する説明図、第３図は従来の
リニア搬送装置の構成図である。図において、１は搬送路、２はリニアモータ、
３は台車、４は２次導体、５はコンタクタ、６は
電流検出器、７は電源、８はコントローラ、９は
位置検出器（通電切換用）、１０は位置検出器（
台車有無確認用）である。なお、図中、同一符号
は同一、または相当部分を示す。 FIG. 1 is a configuration diagram of a linear conveyance device according to an embodiment of this invention, and FIG. 2 is an explanatory diagram illustrating current changes due to changes in the overlapping ratio of a linear motor and a secondary conductor according to an embodiment of this invention. FIG. 3 is a block diagram of a conventional linear conveyance device. In the figure, 1 is a conveyance path, 2 is a linear motor,
3 is a trolley, 4 is a secondary conductor, 5 is a contactor, 6 is a current detector, 7 is a power supply, 8 is a controller, 9 is a position detector (for energization switching), 10 is a position detector (
(for checking the presence or absence of a trolley). In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

In a linear conveyance system in which multiple linear motors are installed on the conveyance path, a secondary conductor is attached to the cart, and the cart is moved by the thrust acting between the linear motors and the secondary conductor, the location of the cart before starting is completely determined. By detecting that the current value flowing through the linear motors by sequentially energizing the linear motors differs depending on the presence or absence of a secondary conductor, and after the bogie has started, the energization of multiple linear motors can be switched based on the above current change. A linear conveyance device characterized in that it operates by detection.