JPS60102321A - Air pressure type article conveying device - Google Patents

Abstract

PURPOSE:To convey an article having larger specific gravity securely and with high efficiency by inserting a carrier formed by a cylindrical air bag, which has a supporting hole through its center while whose both ends are opened, into a tube. CONSTITUTION:A carrier 1 is formed by a cylindrical air bag 4, which has a supporting hole 4a through its center while whose both ends are opened, and inserted in a tube 8. Thus, since the carrier 1 is light for its volume, even a part having smaller air resistance per unit weight and larger specific gravity, can be conveyed at a high speed, through the tube 8 by means of air stream. Thereby a part having larger specific gravity can be securely conveyed with high efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves storing one or more articles, such as mechanical parts that have been subjected to cutting or plastic working, in a carrier and putting them into a tube, and then using an air flow flowing through the tube. This invention relates to a pneumatic article conveying device for conveying to the next process.

Traditionally, relatively lightweight items are left bare or.

Pneumatic conveying devices are known, in which items are placed in a container and placed in a tube, and transported in one direction by airflow flowing through the tube. As it is, the air resistance per unit weight is small, so it is not only difficult to transport by air flow, but also
However, there are drawbacks such as items colliding with each other during transportation, causing damage, and the inner circumferential surface of the tube being rubbed by the items, resulting in early wear.If a method of storing items in a container is adopted to prevent this, it takes time to take items in and out. It had the disadvantage that it was not suitable for mass transportation.

The object of the present invention is to eliminate such drawbacks and provide a device that can reliably and efficiently transport even parts with large specific gravity, such as metal mechanical parts. .

Hereinafter, one embodiment of the present invention will be explained based on the accompanying drawings.

In the figure, reference numeral 1 denotes a carrier, which is a thin-walled cylindrical outer cylinder 2 made of a material with high rigidity and relatively light weight, such as a hard synthetic resin such as hard vinyl chloride, or a light metal such as Ariminilam. on the outer surface.

Numerous short fibers such as nylon with excellent abrasion resistance 3 are electrostatically charged 4
A cylindrical air bag 4 made of a flexible thin film such as a polypropylene film is attached to the inner periphery of the outer cylinder 2, and a cylindrical air bag 4 made of a flexible thin film such as a polypropylene film is attached to one end surface. A supply and exhaust valve 5 is installed,
Pressurized air can be supplied into and discharged from the air bag 4, and a holding hole 4a formed at the center of the air bag 4 has a fiber longer than the short fibers 3 and located approximately at the center. Innumerable long fibers 6 are planted. Note that a magnetic recording section 7 is formed on the outer peripheral surface of the outer cylinder 2 by printing or adhering a film. The carrier 1 having the above structure is inserted into a tube 8 made of hard vinyl chloride or the like having an inner diameter slightly larger than its outer diameter, and a high-velocity air flow is generated in one direction within the tube 8. .

Next, a method for transporting an article using the apparatus of this embodiment will be explained. First, article a is transported through holding hole 4 +1 of carrier 1.
When the article a is pushed through the opening on one side to the center in the longitudinal direction, the long fibers 6 planted in the holding hole 4a are pressed and bent, and their rigidity supports the center of the air bag 4, and the article a is written. When this is put into the tube 8, the carrier 1 is carried in one direction by the air flow flowing therein, and the carrier 1 is taken out from the tube 8 at a predetermined position.By not protruding from one end of the holding hole 4a, the article a Separated from 1.

In the carrier 1, the outer cylinder 2 has a high rigidity and the air bag 4 is made of a flexible thin film. Therefore, when a large amount of pressurized air is filled from the air supply/exhaust valve 5, the air bag 4 will move as shown by the chain line in FIG. Then, the holding hole 4a bulges inward and contracts in diameter. Therefore, by adjusting the amount of pressurized air filled into the air bag 4, the diameter of the holding hole 4a can be adjusted according to the size of the article a to be transported, and the article a can be kept at a constant pressure in the carrier 1. It is possible to hold.

In this embodiment, since numerous long fiber strings 6 are implanted in the holding hole 4a, it is not only possible to prevent the air bag 4 from directly contacting the article a and causing loss, but also to prevent the air bag 4 from coming into direct contact with the article a. Even if there is variation in stiffness, it can be absorbed by the bending of the long fibers 6 and held with a substantially constant force.Also, since countless short fibers 3 are implanted around the outer circumference of the outer tube 2, the tube The friction force on the inner circumferential surface of tube 8 is reduced to a small extent (), which not only enables high-speed conveyance, but also prevents wear of the tube 8 and outer cylinder 2, improving durability. Since it is formed in the magnetic recording section 7, it has the advantage that by storing the part number etc. there and reading it from outside the tube 8, it becomes possible to easily perform parts selection and quantity control.

As specifically explained in the above embodiments, the pneumatic article conveying device of the present invention forms a cylindrical air bag made of a flexible thin film on the inner periphery of a highly rigid outer cylinder that is open at both ends. The carrier includes an air bag provided with an air supply/exhaust valve, and the air bag elastically holds an article loaded in a holding hole configured at the center, and a tube that conveys the carrier in one direction by air flow. The main point is that the carrier has an air bag and is rated 411 in terms of volume, so even metal parts with low air resistance per weight of +B can be transported at high speed inside the tube by air flow. Since the carrier is designed to hold parts by loading them into the holding hole formed in the center of the cylindrical air bag, it is easy to attach and remove articles, and it is suitable for conveying large quantities.
Since the diameter of the holding hole can be adjusted by increasing or decreasing the amount of pressurized air in the air bag, one type of carrier can be used for articles of different sizes, and its management is easy. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway perspective view of a carrier according to an embodiment of the present invention, and FIG. 2 is a sectional view of the carrier in use. 1: Carrier 2: Outer cylinder 3: Short fiber 4: Air bag 5
: Suction valve 6; Long fiber 7: Magnetic recording section 8:
tube a; article

Claims (1)

[Claims] / A cylindrical air bag made of a flexible thin film is formed on the inner periphery of a highly rigid outer cylinder with both ends open, and the air bag is provided with an air supply and exhaust valve. A pneumatic article conveying device ρ characterized by comprising a carrier that elastically holds an article loaded in a holding hole with the air bag, and a tube that conveys the carrier in one direction by an air flow. An outer peripheral surface of the outer cylinder. Pneumatic article UQ feeding device J according to claim 1, characterized in that the holding hole of the air bag is flocked. Pneumatic article conveyance device according to item 1 or item 2