JPS631611A - Linear motor type rotary stocker - Google Patents

Abstract

PURPOSE:To aim at the high speed travel of a stocker, by attaching a primary side coil of a linear motor and a primary side conductor facing to the former to a truck of the stocker traveling on a rail forming a ring conveyor route and onto the rail, respectively. CONSTITUTION:A stocker consisting of plural trucks 10 is made travelable on a ring rail 6 by wheels 12 of the truck 10. Each sensor 9, detecting a primary side coil of a linear motor generating a progressive magnetic field and the stocker, is set up on an upper plate 6b of the rail 6 at regular intervals. On the other hand, on top of the truck 10, there is provided with a housing box 11, while these trucks 10 is coupled in a row with a coupler, thus the stocker is formed up. A secondary side conductor 14 receiving a magnetic field of the coil 7 and a secondary side unit 15 to be attracted to the solenoid brake primary side unit 8 installed on the rail are attached to the underside of an upper plate 10b at the foremost position of this truck 10. With this constitution, these trucks are made travelable at high speed with the linear motor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a near-motor type rotary stocker that uses a linear motor as a drive source for a rotary stocker for storing articles.

[Prior art]

In a factory, a rotary stocker is a storage device that can store items and take out items as needed.

FIG. 7 is a schematic diagram showing the configuration of a conventional rotary stocker. In this figure, [ is a plurality of loading platforms 1a + l
a... is a stocker connected in a ring shape by a chain or a link mechanism, and is driven by an electric power @8 via a transmission 2. In this case, each loading platform 1a of the stocker L
The position of r La... is detected by the sensor 4,
The control device @15 controls the growing machine 3 according to this detection signal and external command. The stocker 1 described above is configured in multiple stages as necessary.

[Problem that the invention seeks to solve]

However, the conventional rotary stocker described above has the following problems.

Since the stocker 1 is moved by the motive 3 and mechanical means, the running speed is high.

U. Mechanical parts require maintenance such as lubrication, making maintenance time-consuming.

, 2 There is no flexibility in the combination of loading platform 1a, La..., and the increase of loading platform La + La... is f! It is difficult to change A etc.

Even When the stocker 1 runs, noise is generated in the mechanical parts.

A large amount of dust is generated from the contact parts of the mechanical parts when the stocker L is running.

The present invention has been made in view of the above circumstances, and its object is to provide a linear motor type rotary stocker that can solve all of the above-mentioned problems.

[Means for resolving interlude points]

The present invention relates to a rail forming an annular conveyance path;

A stocker connected in a row and configured with *a number of carts, which moves guided by the rail, a primary coil of a linear motor attached to the rail or the cart, and a primary coil of the linear motor. a secondary conductor of a linear motor mounted on the trolley or the rail so as to face the coil; a detection means for detecting the position of the stocker on the rail; and a primary coil of the linear motor. It is characterized by comprising a drive control means for controlling.

[Effect]

According to the present invention, the traveling magnetic field generated in the primary coil of the near motor, which is attached to the annularly formed rail or to the trolley constituting the stocker, is applied to the IJ near motor, which is mounted on the trolley or the rail. A stocker made up of a plurality of trolleys runs on the rail, supported by the secondary conductor of the rail.

〔Example〕

Figures 1 to 3 show a ground 1 which is a first embodiment of this invention.
FIG. 1 is a diagram showing the configuration of a rotary stocker of the long type, in which FIG. The figure is a block diagram showing the electrical configuration in the same embodiment, and FIG. 3 is a sectional view showing the structure of the same embodiment. First, in FIG. 1(a) and FIG. 3, 6 is a rail that forms an annular conveyance path, and includes a lower horizontal plate 6a, an upper horizontal plate 6b arranged above it, and horizontal plates such as n. 6a+
It is composed of connecting members 6c, 6c that connect 6b. On the upper horizontal plate 6b of the rail 6 are primary coils 7.7 of near motors that generate a traveling magnetic field, and primary units 8.7 of electromagnetic brakes that stop the stocker ST at a predetermined position. and sensors 9, 9, . . ., which detect the stocker ST and send out a detection signal A, are installed at - constant intervals.

On the other hand, to, to... (see Figure 1 middle), Figure 3)
is a cart with a rectangular cross section, and a storage box 11 for storing items is attached to the top surface of the cart. In addition, wheels 12 and 12 are attached to the lower portions of the side plates 10a and lOa of the truck 0, which move over the upper surface of the lower horizontal plate 6a of the rail 6. In addition, the platforms *lO, lO... are connected in a line by connecting devices 13, 18..., and the stocker S
It forms a T.

The top and sixth of these connected trolleys 10.10...
The secondary conductor 14 that receives the traveling magnetic field of the primary coil 7 of the near motor and the secondary unit L5 that is attracted to the primary unit 8 of the electromagnetic brake is attached to the lower surface of each of the 1st/th upper flat plates tab. It is attached so as to face each primary side.

Next, in FIG. 2, L6 is an external command and sensor 9.
, 9... is a control device to which a detection signal A is supplied,
Control signals Bl, B are applied to the driver 17 and off) II 318.
2 respectively. The driver 17 sends the three-way mt force to the switch 18 via the thyristor. In this case, the phase of the thyristor is controlled by the signal Bt. The switch 18 switches the primary qt of the linear motor according to the control signal B2.
The three-phase AC power output from the driver 17 is selectively supplied to any one of the q coils 7, 7, . . . .

According to the above configuration, the three carts 10 to which the secondary conductors 14 of the linear motors are attached are driven by the moving magnetic field generated in the primary coils 7, 7, . . . of the linear motors. A stocker ST, which connects a large number of carts by n, runs on the rails 6.

Incidentally, in the above embodiment, the linear motor unit (linear motor primary unit 7, brake primary unit 8, sensor 9) is arranged over the entire area on the rail 6, but when the rotary stocker is newly installed, the
, to..., it is preferable to install more linear motor units as the number of vehicles increases. In addition, after the linear motor unit is placed over the entire area of the rail 6,
If the damage of the truck is to be further increased, cut the rail 6,
The rail 6 is extended by adding rail material to that part.

Then, it is possible to further arrange a linear motor unit in this expanded portion. In this way, even if the number of carts increases, linear motor units can be easily added, and the size can be easily increased.

Next, a second embodiment of the present invention will be described. 9 to 6 are diagrams showing the configuration of a rotary stocker for two days above ground, which is a second embodiment of the present invention, and FIG.
is a plan view showing the conveyance path of the stocker in this embodiment,
Figure 9 (b) is a plan view showing the stocker on the conveyance path,
The figure is a block diagram showing the electrical configuration of the same embodiment, and FIG. 6 is a sectional view showing the structure of the same embodiment. In these figures, the points that differ from the i/embodiment are as follows. . In the first embodiment, the primary coils 7, 7, ... of the linear motor were installed on the rail 6, but in this embodiment, the primary coil 7 of the linear motor was connected to the connected trolley, It is attached to the bottom surface of each of the top, sixth, and eleventh upper flat plates tabs of to.... Also, for this reason, the secondary conductor 14 of the linear motor is installed over the entire length of the rail 6 at the center of the upper surface of the upper horizontal plate 6b of the rail O. It faces the primary coil 7. If, a trolley rail 1g is installed near the upper cloth end of the upper horizontal plate 6b of the rail 6 over the entire length of the rail 6, and the trolley rail 1g is installed on the trolley lO when the next side coil 7 is attached.
A brush 20 is attached which receives a three-phase alternating current force from 9.

Next, in Fig. 3, the driver 17 sends n3
The phase current momentum is supplied to the primary coil 7 of the linear motor via the trolley rail 19 and the brush 20. This causes the linear motor's primary coil? generates a moving magnetic field, this moving magnetic field is radiated to the secondary conductor 14 on the rail 6, and the stocker ST moves on the rail 6.

In addition, the above 1. In the second embodiment, the secondary conductor 14 of the linear motor (t) is the primary coil 7 mounted on three trolleys 10; You may increase or decrease the number,
Furthermore, all the carts 10 may be equipped with linear motors.

In addition, in the above first and second embodiments, the stop position of the trolley 10 is determined by the electromagnetic brake, but if necessary, the rotary stocker of the above @l and second embodiment may be used as a mechanical brake. It is also possible to configure it in multiple stages.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, the following effects can be obtained.

l Since the linear motor is used as the drive gamma source for the stocker, high-speed running is possible, and an efficient stocker can therefore be constructed.

Y: The number of trolleys can be deleted as needed.

The use of a linear motor simplifies the mechanical structure and facilitates maintenance.

Hiroshi: When installing a new rotary stocker, the rails can be constructed in advance for the future, and the necessary number of bogies can be introduced at the initial stage, and the number of bogies can be increased as needed. This is particularly advantageous in the 2-year method.

When installing a new rotary stocker, it is possible to arrange the minimum number of linear motor units necessary and add linear motor units as necessary.In other words, this invention makes it easy to add more bogies. There are effects that can be achieved.

The running wheels of the stocker are formed of free rollers, and
H, H-movement chains, etc. are not required, and as a result, noise during operation of the stocker can be reduced.

Since a λ linear motor is used, mechanical friction is reduced, resulting in less dust generation.

[Brief explanation of the drawing]

Figures 1 to 3 are diagrams showing the configuration of a first embodiment of the present invention, and Figure 1 (A) is a plan view showing the conveyance path of the stocker ST in the first embodiment, and Figure 1 ( B) is a plan view showing the stocker ST on the conveyance path in the same embodiment, FIG. 2 is a block diagram showing the electrical configuration of the same embodiment, FIG. 6 to 6 are diagrams showing the configuration of the second embodiment 1+j of the present invention, FIG. 9(a) is a plan view showing the conveyance path of the stocker ST in the same embodiment, and FIG. A plan view showing the stocker ST on the conveyance path divided into the same embodiment, FIG. 1 is a schematic diagram showing the configuration of a conventional rotary stocker. 6...Rail, 7,7...Primary coil of linear motor, 8,8...Primary unit of electromagnetic brake, lJ, 9... sensor, to,
10... Machine 1 (, ST... Stocker), 13
．． 18...Connecting device, 12°12...
Roller, 14.14... Secondary conductor of linear motor, 15.15... Secondary unit of electromagnetic brake, [6... Control equipment, 17.・・・・・・
Driver, 18...... off t6.19...
Trolley rail, zO...Brush. Applicant Noboru, a+! A Co., Ltd. Figure 2 Figure 8 Figure 5 @ Figure 6

Claims (1)

[Claims] A stocker that is configured by a rail forming an annular transport path and a plurality of carts connected in a line and moves while being guided by the rail, and a primary coil of a linear motor that is attached to the rail or to the cart. a secondary conductor of the linear motor mounted on the trolley or the rail so as to face the primary coil of the linear motor; a detection means for detecting the position of the stocker on the rail; A linear motor type rotary stocker comprising a drive control means for driving and controlling a primary coil of the linear motor type rotary stocker.