JPS61116965A - Pneumatic levitation linear conveyer - Google Patents

Abstract

PURPOSE:To improve a levitating force by providing a wedge-shaped slider for sealing air discharged from a pair of slide rails secured to the top of a base in three ways. CONSTITUTION:A pneumatic levitation linear conveyer has a base 1, a pair of slide rails 2, a slider 4, its guide 4a, and a stator 5 of a motor for driving the slider 4. In this case, a slider projection 6 projected to the stator side of the slider 4 is formed in a wedge shape, and provided to coat in recess shape of the rails 2. Thus, the slider 4 of the conveyer is levitated by air 3, and supported by the guide 4a. At this time, air 3 projected upward of the rail 2 is sealed in the outer periphery of the rail 2 by the projection 6. Thus, the slider 4 can obtain large levitation force to smoothly convey.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an air floating type IJ conveyance device, and particularly to a structure capable of improving the floating blade of its slider.

[Conventional technology]

Fig. 3 is a side cross-sectional view showing a conventional air floating type +7 = 7 conveyor. Rail 1.3 is air discharged from the slide rail 2, 4 is a slider running along the pair of slide rails 2, 4a is a slider guide protruding from both ends of the slider, and 5 is a motor that drives the slider 4. This is the stator of

The conventional air floating type linear conveyance device is constructed as described above, and the slider 4 driven by the stator 5 is levitated by the air 3 discharged upward from the slide rail 2. In addition, the slide rail 2 has a concave shape, and the guides 4 & of the slider on the left and right sides (pair) are the slide rail 2.
Horizontal air is applied to prevent left and right movement, thereby allowing non-contact linear movement.

[Problem that the invention seeks to solve]

In the conventional air floating type linear conveyance device as described above, there is a problem that the air 3 discharged above the slide rail 2 tends to leak to the stator side, so that the floating blade of the slider 4 becomes small.

This invention was made in order to solve such problems, and the object is to obtain an air floating linear conveyance device a that can contain the air discharged above the slide rail and raise the air floating blade. shall be.

[Means for solving problems]

The air floating linear conveyance device according to the present invention includes a wedge-shaped slider that seals air discharged from a pair of slide rails fixed to the upper part of the pace on three sides.

[For production]

Since the wedge-shaped slider concavely covers each of the rails of the pair of straight rectangular slide rails, the air discharged from the slide rails is sealed on three sides, thereby improving the air floating blade.

〔Example〕

FIG. 1 is a cross-sectional side view showing one embodiment of the present invention.
In the figure, numerals 1 to 3.4a and 5 are exactly the same as the conventional device described above. Reference numeral 6 denotes a slider protruding portion of the slider 4 that protrudes toward the stator side, so that the slider 4 has a wedge-like shape and a concave shape that covers each of the pair of slide rails 2.

In the nine-air floating linear conveyance device configured as described above, the slider 4 is floated by the air 3 discharged above and horizontally from the left and right pair of rectangular slide rails 2, and the left and right guides prevent left and right deflection. Supported. At this time, the air 3 projected above the slide rail 2 is prevented from leaking to the stator 5 side as much as possible through the slider protrusion 6.
So, I made a K to seal it to the outer periphery of Slide Run.

As a result, the slider 4 can obtain a large floating blade, which can support the weight of the conveyed object and resist the magnetic attraction force acting between the stator and the slider, allowing smooth conveyance.

In the above embodiment, the slider protrusion 6 was shown to protrude all the way between the slide rails, but the slider protrusion 6 is provided only near the slide rail 2, as shown in the cross-sectional side view of FIG. The same effect as in the above embodiment can be obtained.

〔Effect of the invention〕

As explained above, this invention is configured so that the slider confines air to the outer periphery of the slide rail, so the air floating blade can be increased in width, and devices such as near compressors can be made smaller.

It has the effect of being able to be manufactured at low cost.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view showing one embodiment of the invention, FIG. 2 is a cross-sectional side view showing another embodiment of the invention, and FIG.
FIG. 2 is a cross-sectional side view showing a conventional air floating linear conveyance device. In the figure, 1 is a pace, 2 is a slide rail, 3 is an air, 4tl;l Ni slider, and 5 is a stator. Note that the same reference numerals in each figure indicate the same or similar parts. Figure 1 Figure 2 Figure 3 Procedural amendment (voluntary) Showa 60°J3 Kamo Day 1, Incident indication Patent application No. 59-235245 2,
Title of the invention Air levitation linear conveyance device 3, Relationship with the case of the person making the amendment Patent applicant representative Moriya Shiki & Subject of amendment (1) Claims column of the specification (2) Invention of the specification Detailed explanation column 7, document stating the scope of claims after amendment to the catalog of attached documents One or more copies of scope of claims after amendment

Claims (1)

[Claims] A pair of slide rails that are fixedly laid on the left and right sides of the upper part of the base, discharge air from inside upwardly or horizontally to the base, and have a rectangular shape, and are interposed between the pair of slide rails, A stator of a motor fixedly disposed on the upper part of the base and a concave cover covering each of the slide rails along the pair of slide rails, and are driven by magnetic attraction force from the stator and resist this attraction force. An air floating linear conveyance device comprising a wedge-shaped slide that seals air discharged from the slide rail on three sides.