JPH01107602A - Carrier device - Google Patents

Abstract

PURPOSE:To enable stators to be arranged in the vicinity of boundary sections as much as possible between the straight sections and the curved sections of a traveling passage, by forming notched sections at both end sections on the carrier sides of the stators of a linear motor. CONSTITUTION:On the straight sections and the curved sections of a traveling passage 6, the stators 10a-10c of a linear motor are arranged. In the meantime, on the traveling passage 6, a carrier 8 is fitted, and on the carrier 8, via a fitting plate 12, wheels 7 and the mover 9 of the linear motor are fitted. So far as the stators 10a-10c are concerned, laminated cores 15a, 15c are paced between keep members 21, 22, and are fixed with a plurality of fixing bolts 23. Besides, so far as the laminated cores 15a, 15c are concerned, cores shorter in order on the way in the laminated direction are laminated, and at both the end sections of the cores, step-formed notched sections 25, 26 are formed. As a result, within the curved sections, the stators can be arranged close to the moving locus of the carrier within the curved sections.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a conveying device for placing IC components, chemicals, etc. on a carrier and conveying the same along a travel path.

(Prior Art) As this type of conveying device, for example, the one shown in FIG. 8 is known.

That is, 6 in the figure is a running path consisting of a horizontal straight part 1 on the lower side, a curved part 2 on the lower side, a vertical straight part 3, a curved part 4 on the upper side, and a horizontal straight part 5 on the upper side. carrier 8 via wheels 7...
is installed. A moving element 9 of a linear motor is attached to the carrier 8. Furthermore, stators 10 of linear motors are disposed on the running path 6 at predetermined intervals along the running direction of the carrier 8.

When a current is passed through the coil of the stator 10 of the linear motor, a magnetic field is generated, and a force is generated between the induced current flowing in the mover 9 of the carrier 8 and the carrier 8 runs along the running path 6. will be done.

(Problems to be solved by the invention) However, in the past, as shown in FIG.
Since the stacking height t of the iron core 10' constituting the stator 10 of the linear motor is the same from one end to the other, the stator 10 is moved closer to the boundary k between the straight section 3 and the curved section 2 of the running path 6. If the carrier 8 is installed in such a manner, the moving trajectory a of the carrier 8 will collide with the corner of the stator 10, making it impossible to travel.

Therefore, the stator 10 must be placed away from the boundary k between the straight section 3 and the curved section 2, and the stator 10
There was a problem in that the vehicles could not be arranged densely along the running path 6 and sufficient propulsion force could not be obtained.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a running path that includes a straight portion and a curved portion continuous to the straight portion and guides the carrier in the vertical direction; A moving element of a linear motor that is moved by being given thrust by a magnetic field generated between a stator of a linear motor disposed along this traveling path and a stator attached to the carrier, and causes the carrier to travel. The stator is characterized in that notches are formed at both ends of the stator facing the carrier side.

(Function) With the above means, the stator of the linear motor can be placed as close as possible to the boundary between the straight section and the curved section of the running path.

(Example) The present invention will be described below with reference to an example shown in FIGS. 1 to 7.

Note that the same parts as those shown in FIGS. 8 and 9 are given the same numbers, and the explanation thereof will be omitted.

FIG. 1 shows the schematic configuration of the conveyance device, and shows the traveling path 6.
The lower horizontal straight part 1, the lower curved part 2, the vertical straight part 3, the upper curved part 4, and the upper horizontal straight part 5, which constitute the rail, have a U-shaped cross section as shown in FIG. Molded.

As shown in FIG. 2, stators 10a of linear motors are installed in the lower horizontal straight part 1, the vertical straight part 3, and the upper horizontal straight part 5 of the running path 6, respectively.
・is provided.

Further, the lower curved portion 2 and the upper curved portion 4
As shown in FIGS. 3 and 4, stators 10b and 10c of the linear motor are also disposed inside.

The stators 10a, 10b, and 10c are a pair of laminated cores 15a facing each other with a predetermined distance therebetween.

15a, 15b, 15b, 15c, 15c, and these laminated cores 15a, 15a, 15b, 15b.

15c, a holder 16a that holds both ends of 15c.

16b, 16c, and these holders 16g, 16b.

Slits 17a and 17b formed in 16c.

17c.

On the other hand, on the traveling path 6, a carrier 8 as shown in FIG.
is installed. Wheels 7, 7 are attached to this carrier 8 via a mounting plate 12.
The vehicle runs along the running path 6 by sandwiching the opening side edges of the running path 6.

Further, a mover 9 of a linear motor is attached to the center of the mounting plate 12, and this mover 9 is attached to the holder 1.
6 a r 16 b * 16 c slit 1
7a, 17b, 17c and a pair of laminated cores 15a, 1
5a, 15b, 15bs 15c.

15c.

By the way, the straight section 3 and the curved section 2 of the running path 6
The stator 10a provided at the boundary k between the two stators and the stators lQa and 10c provided within the curved portion 4 on the upper side are constructed as shown in FIG. That is, the stator 10a
, 10c, the laminated cores 15a and 15c are presser members 21.2.
2, and is fixed with a plurality of fixing bolts 23... Both ends of the pressing members 21 and 22 are fixed to the holding bodies 16a and 16 by fixing bolts 24.
It is held fixed at c.

In addition, the laminated cores 15a and 15c have cores having shorter lengths stacked one after another from the middle in the stacking direction, and step-like notches 25.26 are formed at both ends, and the presser foot Both ends of the member 21 are bent.

Note that 27 is a coil attached to the laminated iron core 10a and IOC.

Thus, the stator 10a of the linear motor.

When a current is passed through the coils 27 of 10b and 10c, a magnetic field is generated in the transport direction, and a force is generated between the induced current flowing in the slider 9 and the carrier 8 moves along the traveling path 6 as shown in FIG. The vehicle will be driven with

As described above, in order to form the notches 25 and 26 at both ends of the stator 10a on the carrier side, the stator 1 is placed close to the boundary k between the straight section 3 and the curved section 2 of the running path 6.
Even if 0a is placed, the movement trajectory a of the carrier 8 is
There is no collision with 0a. Therefore, the stators 10a can be densely arranged along the running path 6, and sufficient propulsion force can be obtained.

In addition, since the notches 25 and 26 are also formed at both ends of the stator 10c on the carrier side, the stator 10c can be placed as close as possible to the movement path of the carrier 8 within the curved portion 4 on the upper side of the running path 6. Sufficient propulsive force can be obtained even within the curved portion 4.

Furthermore, the stator 10 of the linear motor is not only located in the straight portion 1.11.5 of the running path 6, but also in the curved portions 2, 4.
b, 10c, it is possible to accelerate the carrier 8 within the curve 2.4. Therefore, there is no need to strongly accelerate the carrier 8 on the straight sections 1, 11 of the running path 6, a powerful linear motor is not required, and there is no need to strengthen the structure of the carrier 8 and the running path 6. , impact and noise can be reduced, and conveyance efficiency can be improved by reducing the weight of the carrier 8.

The layer thickness of the laminated core 15b of the stator 10b provided within the lower curved portion 2 is smaller than the layer thickness of the core laminated core 15a of the stator 10a provided within the straight portion 1°3.5. Thereby, even if the center portion of the mover 9 floats within the lower curved portion 2, sufficient propulsive force can be applied to the mover 9.

Further, in the above embodiment, a double-sided motor is used as the linear motor, but the present invention is not limited to this, and a linear induction motor may be used.

[Effects of the Invention] As explained above, according to the present invention, since the notches are formed at both ends of the carrier side of the stator of a linear motor, the stator can be moved between the straight part and the curved part of the running path. It can be placed as close to the border as possible. Therefore, the stator can be arranged densely, and sufficient propulsion force can be obtained.

[Brief explanation of the drawing]

1 to 7 show an embodiment of the present invention, in which FIG. 1 is a configuration diagram showing a conveying device, and FIG. 2 is a configuration showing a carrier and a stator provided on a straight section of a running path. Figures 3 and 3 show the stator and carrier provided at the lower curve of the running path, Figure 5 is a side view showing the carrier and the slider, Figure 6 is a configuration diagram showing the stator, and Figure 7 8 is an explanatory diagram showing a trajectory when the carrier travels, FIG. 8 is a configuration diagram showing a conventional example, and FIG. 9 is an explanatory diagram showing the trajectory when the carrier travels. 1.5.11... Straight part, 2.4... Curved part, 6... Running path, 8... Carrier, 9... Mover, 10 a, 10 b, 10 c-.・
Stator, 24.25--notch. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Figure 5 Figure 5 10a, 10c Figure 6 Rod 8 Figure

Claims (3)

[Claims] (1) A running path consisting of a straight part and a curved part continuous to the straight part and guiding the carrier in the vertical direction; a stator for a linear motor disposed along this running path; and a stator for a linear motor attached to the carrier. The stator is characterized by comprising a mover of a linear motor that moves by being given a thrust by a magnetic field generated in the stator and causes the carrier to travel, and notches are formed at both ends of the stator facing the carrier side. conveyance device. (2) The conveying device according to claim 1, wherein the linear motor is a double-sided motor. (3) The conveying device according to claim 1, wherein the linear motor is a linear induction motor.