JPH07991U - Stop position control device for moving body - Google Patents

Abstract

(57) [Summary] [Purpose] Set the dog and limit switch to a high position, a narrow place, or an invisible place on a moving body that has a relatively low speed and a low stopping accuracy to set the stop position. (EN) Provided is a device that can easily perform trial and error adjustment when controlling. [Composition] Adjust the positions of the dog and limit switch,
Instead of controlling the stop position of the traveling body, the timer is activated by the electric signal of the limit switch, and the stop position of the traveling body is controlled at the set time of the timer.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stop / positioning device for a moving body such as a truck, a crane, and a door.

[0002]

[Prior art]

 There are various methods for positioning the moving body, depending on the stop accuracy, environment, surrounding conditions, speed, braking distance, and control method.However, when the speed is slow and the stop accuracy is relatively low, it is generally used in the past. Has been done with dogs and limit switches.

FIG. 2 shows an example of the sequence.

In the case of the right bound, when the ON push button switch PB-1, switch X _0M switch X _0M sequence of O N left-bound to OFF, the circuit is kept running body drive motor X Drive _0M to the right.

When the limit switch LS-X is operated near the stop position, the circuit of the drive motor X _0M is turned off, the switch X _{0M in the} leftward sequence is turned on, and the traveling body is stopped.

The same applies to the case of going leftward.

In this case, the position where the limit switch LS-X turns off must be finely adjusted.

[0008]

[Problems to be solved by the device]

 When trying to control the stop positioning of the traveling body with the dog and the limit switch, fine adjustment is performed depending on the position where the dog kicks the limit switch, but if trial and error of the positional relationship between the dog and the limit switch can be easily performed It is possible, but it is extremely difficult to repeat trial and error in places where the dog and limit switch are installed in high places, narrow places, and invisible places.

The present invention has been devised to solve such a problem.

[0010]

[Means for Solving the Problems]

 With the progress of electronic parts in recent years, electronic timers have become inexpensive, highly accurate, and have a long lifespan, and the fluctuation accuracy has become so small that it can be ignored. The electric signal from the switch activates the timer, and the stop signal is issued after the set time. The stop position can be controlled by adjusting the set time setting. According to this method, instead of adjusting the mechanical positions of the dog and the limit switch, the timer can be stored in the control panel at hand and the set time can be set, so trial and error of the adjustment can be easily performed. If the vehicle with a certain speed is decelerated and then stopped, decelerate with the limit switch and then stop with the timer.

[0011]

【Example】

 The sequence of the embodiment of the present invention is shown in FIG.

First, in the case of going to the right, the push button switch PB-1 is turned on. The switch X _0M is turned ON, the switch X _{0M in the} leftward sequence is turned OFF, the rightward circuit is held, and the drive motor X _0M drives the traveling body to the right. When the limit switch LS-X is activated near the stop position, the timer TR1 is activated and the time reset switch TR-1 is turned off after the set time of the timer has elapsed, and when the traveling is stopped, the holding circuit switch _X0M is turned on. It is turned off, and the switch X _{0M in the} leftward sequence is turned on.

Similarly, in the case of going to the left, the push button switch PB-3 is turned on. Switch Y _0M switch Y _0M sequence of right bound turns ON the drive motor Y _0M circuit of the left-bound are retained to OFF refers traveling along the traveling body to the left. When the limit switch LS-Y operates near the stop position, the timer TR2 operates and the time reset switch TR-2 turns off after the set time of the timer has elapsed, and at the same time as the traveling stops, the holding circuit switch _Y0M turns off and goes to the right. The switch Y _{0M in} the sequence is turned on.

When it is desired to turn off the holding circuit, the push button switches PB-2 and PB-4 can be interrupted. When it is desired to decelerate and then stop, the drive motor is decelerated with the limit switch and the timer is set at the same time. It operates and stops after the set time.

[0015]

[Effect of device]

 The effect of the present invention is that even if the dog or limit switch is not at hand and it is set at a high place, a narrow place, or an invisible place, the timer is stored in the control panel at hand and the time setting of the timer is changed. The stop position of the moving body can be controlled simply by doing so, and there is no need to make fine adjustments by trial and error in the positional relationship between the dog and the limit switch, which are set in high places, narrow places, and invisible places. Good and easy to adjust.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a sequence of the present invention.

FIG. 2 is a diagram showing an example of a conventional sequence.

[Explanation of symbols]

PB-1 ... push button switch, PB-2 ... push button switch, PB-3 ... push button switch, PB-4
・ ・ ・ Push button switch, X _0M・ ・ ・ switch, Y _0M
・ Switch, LS-X ... Limit switch, LS-
Y ... Limit switch, TR-1 ... Time return switch, TR-2 ... Time return switch, TR1 ...
・ Timer, TR2 ・ ・ ・ Timer, X _0M・ ・ ・ Drive motor, Y _0M・ ・ ・ Drive motor

Claims (1)

[Scope of utility model registration request] 1. Instead of adjusting the positions of the dog and the limit switch to control the stop position of the traveling body, an electric signal of the limit switch activates a timer, and the stop position of the traveling body is controlled at a set time of the timer. A stop position control device for a traveling body, comprising: