JPS63152737A - Carrier brake device - Google Patents

Abstract

PURPOSE:To smoothly stop a carrier with no rebound, by detecting a speed or a position to be changed of the carrier, which runs to the final end part of a rail, while controlling repulsive force of fixed and movable magnets based on said detection and moderating the carrier, which collides against the movable magnet, to be decelerated by the repulsive force. CONSTITUTION:A carrier 2 comes running to a final end part 10 on a rail 1, and a speed of the carrier 2 or its position is detected to change by a detecting means 7. On the basis of the above detection, requlsive forces of a fixed magnet 50 and a movable magnet 53 are controlled. And the carrier 2, if it collides with the movable magnet 53 narrow decreasing a space, is decelerated by moderating a shock by the repulsive force which is eliminated if the carrier 2 approaches a stop position. In this way, the carrier 2 can be stopped to the final end part 10 on the rail 1 being prevented from rebounding, further the carrier 2 can be prevented also from its break.

Description

[Detailed Description of the Invention] [Summary] This is a sliding device that stops a carrier when it runs out of control in a conveyance system using a linear motor or the like. A movable magnet movably provided on the placing rail, a detection means provided along the rail near the movable magnet and detecting the speed or position of the carrier approaching the terminal end, and a detection means based on the detection output of the detection means. By providing an energization control means that energizes the magnets so that the opposing poles of the magnets are the same, smooth deceleration and prevention of rebound due to a collision are possible.

[Industrial application field]

The present invention relates to a carrier braking mechanism for a conveyance system in a financial institution, etc., and particularly to a carrier braking device that can stop the carrier at the terminal end of a rail without bouncing back when the carrier runs out of control.

2. Description of the Related Art Recently, automatic deposit and withdrawal systems have been attempted in financial institutions and the like that automatically withdraw and automatically receive cash and the like handled at counters.

In this system, an automatic cash dispensing machine and a cash storage machine that are commonly used for multiple teller machines are connected to the window dispensing machine by a rail, and a carrier loaded with cash runs on the rail to deposit and withdraw money. .

In such a system, a linear motor or the like is used, but there is a need for a method that can stop the carrier smoothly and without bouncing back at the end of the rail when the carrier runs out of control due to a power outage or the like.

[Conventional technology]

FIG. 4 is a side view showing a conventional example of a conveyance system using a beam near motor.

In the figure, the linear motor is not shown, and the stator, which is equipped with the iron core of the near motor and the magnetic field generating coil and serves as the primary iron core, is arranged at predetermined intervals on the rail la, and the wheels 3
A carrier 2a having a secondary conductor plate 4a is arranged on the rail la.

A stopper 5 is provided at the terminal end IQa of the rail 1a.

Therefore, the carrier 2a is caused to travel by the interaction between the traveling magnetic field generated by energizing the magnetic field generating coil and the eddy current induced in the secondary conductor plate 4a, and when stopped, the side surface of the advancing carrier 2a The slit 6a of a temporary slit 6 (not shown) provided in the slit 6 is detected by a sensor (not shown) at a stop position, and the magnetic field generating coil is stopped by reverse excitation or the like.

Here, when the carrier 2a runs out of control due to a power outage or runaway of the system, it is stopped by colliding with a stopper part 5 made of a buffer member such as rubber or a spring provided at the terminal end 1a of the rail la.

[Problem that the invention seeks to solve]

In the above conventional method, when the carrier 2a goes out of control,
The carrier 2a is stopped by colliding with the stopper part 5 of the terminal end 10a of the rail 1a, but if the carrier 2a is traveling at high speed or is heavy, the inertia is large, and this method will easily damage the carrier 2a. However, when the carrier 2a that collides bounces back and stops before the terminal end 10a, and the carrier 2a is located between the stator intervals, it is not possible to return the carrier 2a to the terminal end.
There is a problem in that the person in charge has to push it to move it.

[Means for solving problems]

FIG. 1 shows a block diagram of the principle of the present invention.

In the figure, 1 is a rail, 2 is a carrier, 10 is a terminal end, 50 is a fixed magnet fixed to the terminal end 10 of the rail 1, and 5 is a fixed magnet fixed to the terminal end 10 of the rail 1.
3 is a movable magnet movably provided on the rail 1 at a distance from the fixed magnet 50; 7 is provided along the rail l in the vicinity of the movable magnet 53 in the opposite direction to the terminal end 10; Detection means for detecting the speed or position of the carrier 2 approaching the carrier 2; 8 is an energization control means for energizing the movable magnet 53° and the fixed magnet 50 so that their opposing poles are the same based on the detection output of the detection means 7; It is.

Therefore, the carrier 2 traveling on the rail 1 in the direction of the terminal end 10 collides with the movable magnet 53 to narrow the gap therebetween. - [Operation] A change in speed or position of the carrier 2 traveling to the terminal end 10 of the rail l is detected by the detection means 7, and based on this, the fixed magnet 50. Then, the repulsive force of the movable 61 stone 53 is controlled, and when the carrier 2 collides with the movable magnet 53 and the distance is narrowed, the repulsive force reduces the impact and decelerates, and when it approaches the stop position, the repulsive force is canceled and it does not bounce back. The carrier 2 can be stopped at the terminal end IO of the rail 1, and furthermore, the carrier 2 can be prevented from being damaged and its life can be extended.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 2 to 4. The same reference numerals indicate the same objects throughout the figures.

As shown in FIG. 2, an electromagnetic spring 5a is provided at the terminal end 10a of the rail 1a. The electromagnetic spring 5a includes an electromagnet 50a having a hollow hole around which a coil 51 is wound, and a sliding shaft 52 that slides through the hollow hole. A permanent magnet 53a fixed to the tip of the sliding shaft 52, and buffer materials 54, 55 attached to the end faces of the electromagnet 50a and the permanent magnet 53a, respectively. A stopper 56 that prevents the sliding shaft 52 from coming off. and a holding frame 57 for smoothly moving the permanent magnet 53a.

The coil 51 is energized so that the polarity of the electromagnet 50a facing the permanent magnet 53a is the same (S pole to S pole, or N pole to N pole).

Further, a speed sensor 7a is provided on the side of the rail la near the electromagnetic spring 5a.

The speed sensor 7a+ and the coil 51 are connected to a control section 8a, and the control section 8a has a pulse counter 80. Quick comparator 81. Speed setting section 82. and a driver 83.

The pulse counter 80 receives the carrier 2a from the sensor 7a.
The detection signal of the approach of the carrier 2a, that is, the first detection signal of the slit plate 6, is sent to the speed comparator 81 as the speed measurement start signal j, and the speed k of the carrier 2a is counted each time based on the detection signals sent sequentially. This is a counter that measures speed.

When the speed comparator 81 receives the detection signal, it turns on the excitation signal i, compares the speed sequentially sent from the pulse counter 80 with the set speed V preset in the speed setting section 82, and determines that k≦V. It has a function of turning off the excitation signal i.

Further, the control unit 8a has an auxiliary power source different from the control power source for running/stopping the carrier 2a. The electromagnetic spring 5a is connected to the electromagnet 5 by energizing the coil 51 in advance, for example, when the power is turned on.
Due to the repulsive force between the permanent magnet 53a and the permanent magnet 53a, the permanent magnet 53a is placed in the position shown in the figure and the energization is canceled to establish the normal state.

With such a configuration, the operation when the carrier 2a runs out of control and travels to the terminal end 10a will be explained as follows. First, the sensor passes between the slits 68 of the slit plate 6 of the carrier 2a passing the position of the sensor 7a. 7a is detected, and the pulse counter 80 starts measuring the speed of the carrier 2a.

(2) At the same time, a speed measurement start signal j is sent to the speed comparator 81, and thereafter, the measured speeds k are sequentially sent to the speed comparator 81.

- The speed comparator 81 turns on the excitation signal i at the same time as receiving the speed measurement start signal j, compares the measured speed k with the set speed V read out from the speed setting section 82, and sets the speed k.
The excitation signal i is kept in the ON state until the speed becomes equal to or less than the set speed v. That is, when k≦V, the excitation signal i is turned off.

(2) The carrier 2a collides with the permanent magnet 53a, but receives a repulsive force from the electromagnet 50a, which increases in inverse proportion to the square of the distance and is applied without contact, so that the carrier 2a is gradually decelerated to the set speed V. Furthermore, the carrier 2a is a permanent magnet 53
When driving while pressing a, the permanent magnet 53a is attached to the buffer material 5.
4, the remaining kinetic energy is absorbed and it stops without rebounding.

FIG. 3 shows a different embodiment. As shown in the figure, a magnetically conductive adsorption member 9 is attached to the tip of the carrier 2b, and when the permanent magnet 53 pushed by the carrier 2b approaches the electromagnet 50a excited in the repulsive direction, the carrier 2b By detecting the speed or position of the carrier 2b and applying reverse excitation to the electromagnet 50a, the carrier 2b and the permanent magnet 5
By attracting the electromagnet 3a and the electromagnet 50a, bounce can be more reliably eliminated and stopped.

In this way, the impact is alleviated and the carrier can be stopped at the terminal end without rebounding, and furthermore, the carrier can be prevented from being damaged and its life can be extended.

In the above example, the case of the permanent magnet 53a and the electromagnet 50a was explained, but both are excited as electromagnets at the same time.

A similar effect can be obtained by canceling the above.

We have explained the stage for controlling the electromagnetic spring according to the speed of the carrier, but it is also possible to control the electromagnetic spring according to the position of the carrier by measuring the distance from the end of the carrier by detecting the slit in the slit plate using a sensor. This is also a good way to do it.

Furthermore, although the above example describes the case of carrier transport by a linear motor, the present invention can generally be applied to braking a self-propelled carrier that runs out of control due to a power outage or the like.

〔Effect of the invention〕

As explained above, according to the present invention, the repulsive force gradually increases without contact, so that: (1) Noise due to collision of the carrier with the end of the rail;

Also, damage can be prevented and the lifespan can be extended.

■The carrier can be stopped at the end of the rail without bouncing back.

There is an effect.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the principle of the present invention, Fig. 2 is a configuration diagram showing one embodiment of the present invention, Fig. 3 is a side view showing a different embodiment, and Fig. 4 is a side view showing a conventional example. . In the figure, 1.1a is the rail, 10.10a is the terminal end, 2
．． 2a and 2b are carriers, 5 is a stopper portion, 5a is an electromagnetic spring, 6 is a slit plate, 6a is a slit, 7 is a detection means, 7a is a sensor, 8 is an energization control means, 8a is an energization control section, 9 is a Adsorption member, 50 is a fixed magnet,
50a is an electromagnet, 51 is a coil, 5
2 is a sliding shaft, 53 is a permanent magnet, 53a is a permanent magnet, 80 is a pulse link, 81 is a speed comparator, 82
indicates the speed setting section. a 4 sheep (

Claims (1)

[Claims] In a conveyance system in which a carrier (2) carrying an object to be conveyed runs on a rail (1), a fixed magnet (50) fixed to a terminal end (10) of the rail (1); , a movable magnet (53) movably provided on the rail (1) at a distance from the fixed magnet (50);
A detection means (53) is provided along the rail (1) in the vicinity of the terminal end (10) in the opposite direction, and detects the speed or position of the carrier (2) approaching the terminal end (10). 7), and the movable magnet (53) based on the detection output of the detection means (7).
) and energization control means (8) for energizing so that the opposing poles of the fixed magnets (50) become the same polarity, the rail (1
) A carrier braking device characterized in that the carrier (2) traveling in the direction of the terminal end collides with the movable magnet (53) to narrow the gap. (2) The fixed magnet (50) or the movable magnet (53)
Claim 1 is characterized in that is a permanent magnet.
Carrier braking device as described in Section.