JPS59323A - Apparatus for supplying powder into vacuum apparatus - Google Patents

Abstract

PURPOSE:To provide the titled apparatus for automatically supplying a powder to a vacuum apparatus and enabling the addition of the powder, by a simple installation wherein rotors respectively having functions as a rotary valve and a rotary feeder are provided between upper and lower hoppers and the vacuum apparatus. CONSTITUTION:An upper stage rotor 2 having an airtight structure is provided between an upper stage hopper 1 and a lower stage hopper 4 and the rotor body 30 thereof having a pierced hole 31 is constituted to rotate by 90 deg. by the driving of a motor 3 to impart the function of an opening and closing valve in transferring a powder to the lower stage hopper 4 to said rotor 2. On the other hand, a lower stage rotor 5 having an airtight structure is provided between the lower stage hopper 4 and a vacuum apparatus 7 and the rotor body 15 thereof having a hole gap 20 is rotated in a necessary rotary number by a motor 6 to automatically supply a necessary amount of the powder to the vacuum apparatus 7. When the lower limit position of the powder is detected by the powder level detector 8 in the upper stage hopper 1, the upper stage rotor 2 is closed while a vacuum exhaust pipe 9 and an inert gas sending pipe 10 are manipulated to bring the pressure in the upper stage hopper 1 to atmospheric pressure and a ceiling small lid 11 is opened to additionally charge the powder into said stage hopper 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a powder supply device Mvc into a vacuum device, in detail, it is necessary to carry out 8 and 4 II powders with tr, vacuum level maintained, and to feed 4kt of powder into the vacuum device. Body automatic supply system *VC
It depends.

Normally, a large liter of costume material is charged into a hopper in the Makabe device in advance, and then the inside of the device is evacuated, and the hopper in this device is It is necessary to supply powder from the warehouse.

However, with this powder supply device, once the powder charge in the hopper inside the device is used up, the operation must be completely stopped, the vacuum inside the device must be released, and additional powder must be charged, which is inconvenient. It is. In order to eliminate this inconvenience, a preliminary chamber is provided, and after charging the container with powder into this preliminary chamber, the preliminary chamber is once evacuated to full vacuum, the gate valve is opened, and the container tube is vacuum-equipped. It is customary to transfer the powder to a hopper in the device and charge the powder to a hopper in the device to maintain continuous operation. However, this method Vt also requires a large number of accessories and is mechanically crude.
It is easy to handle and easy to handle.

Therefore, the inventors of the present invention have conducted extensive research in order to solve the above-mentioned shortcomings of the conventional method. In other words, the present invention has developed a compact bridge capable of automatically supplying the storage tank, and the present invention has a built-in hole for detecting the charging level of RC powder. Between the upper hopper and the lower hopper q), an upper rotor having an integrated rotor made of #1 structure having a through hole perpendicular to the axial direction is installed at the center of the body in the axial direction, and the lower part of the lower bar is The present invention is characterized in that a lower rotor assembly having an integral rotor having an airtight structure with a hole in the center of the body in the axial direction is disposed between the vacuum devices.

Katsuaki Tsurishita will explain the present invention in detail.

In addition, Fig. 1 shows the multi-layer of the central INJ 11 of the present invention, and the -y of the lower rotor of Fig. 2 1a.
FIG. 3 is a cross-sectional view of the internal structure of the third rotor, and FIG.

In the 11th 1st stage, an airtight structure σ upper rotor 2 is provided between the upper hopper 1 and the lower hopper 4,
The upper rotor 21 is driven by the rotating motor 3VC δn
,ru. A lower rotor 5 having a can-shaped structure is disposed between the lower hopper 4 and the vacuum device 1lr7, and the lower rotor 5 is driven by a driving motor 0.

Next, in the upper hopper, we installed a detector 8 for detecting the level of powder in the hopper, a vacuum exhaust pipe 9 in the hopper, and 10 inert gas supply pipes into the hopper, and made it airtight. Attach a small lid 11 that can be opened and closed. Similarly, the lower hopper 4 is also provided with a powder level detector 12, a vacuum exhaust pipe 13, and an inert gas supply pipe 14'j.

The internal structure of the upper rotor 2 and the lower rotor 5 and the structure of the rotor itself are basically the same, and are constructed as shown in FIG. 2. That is, the rotor The integrated hole is located in the upper rotor 2 as shown in Fig. 3(b).
The difference is that the lower rotor 5 has a through hole as shown in FIG. 3(a), whereas the lower rotor 5 has a through hole as shown in FIG. However, the upper rotor 2 and the lower rotor 5 are functionally different.

The upper rotor 2 plays the role of an on-off valve when the powder is first transferred from the upper hopper 1 to the lower hopper 4, and when the through hole in the rotor faces the direction VC, the transfer of powder starts. fl;b is the powder level detector 12 of the lower hopper 4
Is the upper limit position set in advance? At the same time as r is detected, the signal δn%7n is sent to drive motor 3 of the upper rotor.
is activated, and the rotor unit 30 force i 9 (rotates once and stops, n through hole 3) is oriented in the horizontal direction and powder transfer is stopped 6n. It is used as a feeder to automatically supply all the necessary amount of powder into the vacuum device 7 by receiving a signal from Iso, which is set in advance in the vacuum device 7. , rotor IFrV
C. Make a vertical hole with a vertical hole of 2 degrees, and pour the powder that shines inside the hole once (360k). It is something.

Then, if we take the $# construction of both ends and the rotor in the F-stage rotor array and clear the passage according to Fig. 2, the result is as follows.

Rotor neck 28 of rotor integral 15. 28 (a) 28 (bJfi axis 9: + h, ] la),
]6(mu), bearings 16.16(a), 16(
b) σ, so T1°, supported by lid 24.24 (al, 29).

Rotor integrated] 5 and row insert case 25 m1ui4
Seal l 7.37(a), 17(b), 17(c)
, 17(d) "T'R" Seal hole n-1 From here, supply oil to the oil seal part through the oil supply port 19.19(a).In addition, at each location of the rotor a O ring I8.18 (al, 1g (b), 18 (c), 1B (d
), the gear 21 is attached to the rotor neck 28 (b) [nl this gear 21
The rotor is driven integrally by meshing with the gear on the motor rotation shaft r+;b.

As shown above, a rotor is provided between the upper and lower two-stage poppers and the vacuum device.
It is preferable to keep it at 08+IItn. Usually 500μm
When supplying a powder such as a metal powder bed (oxides, nitrides, carbides, silicides, etc.) of the size of a cut into a vacuum device, even if this gap is less than 01 tur, or eJ conversely, Q, 8 tur.
In such a case [1-I, the powder rolled into this gap will make the rotor work harder, resulting in seizure of the rotor.

However, if the gap is [7] above, this problem does not occur.

In addition, carburizing and quenching or induction hardening is applied to the integral surface of the rotor.
It is preferable to carry out a curing process in advance.

Next, what are the effects of the device of the present invention having the above configuration? rB5? The details are as follows.

"If, the level detector 8 in the upper hopper 1 detects the preset lower limit tIL of powder, and at the same time the signal is activated, the upper rotor 2 maintains the closed state. In this way, the upper rotor 2 maintains the closed state. Maintain IIJI' upper hopper 1 vacuum exhaust g9 vacuum valve (not shown) closed,
Inert gas supply pipe] Open the valve (not shown) 4 to supply inert gas into the upper hopper 1. Inside the upper hopper 1 or large attack pressure vc: tH and at the same time r (small lid 3
3 When 4 is opened, it becomes possible to charge n1 additional powder.

In addition, the upper rotor 2 and the upper hopper are kept in a closed state at a predetermined temperature of 1 yen. In addition, when the upper hopper 1 (V small lid)! - is opened to the atmosphere, the degree of vacuum in the vacuum device With the help of the powder in the lower hopper 4 and the lower rotor 5, the powder can be maintained in exactly the same state as before the small lid 1 was opened.

As is clear from the clear explanation above, the present invention includes an upper rotary that functions as a rotary valve and a lower rotary that functions as a rotary feeder between the lower hopper and the vacuum device, and the vacuum of the vacuum device. It is now possible to additionally charge powder into the vacuum system from 11 Ogaki while it is fully maintained and in operation, and it is possible to
It is possible to make the equipment compact with PL#t, which is very advantageous in terms of ease of handling.

[Brief explanation of the drawing]

First, it is the first printing of a feeding device according to one embodiment of the present invention, and FIG. 2 is a sectional view of one row of the lower rotor. ) ill' F-stage rotor
6!4 Moe view. Code: Upper hopper 2 Upper rotor 3 Upper rotor drive motor 4 Lower small collar 5・Lower rotor 6...1st rotor drive motor 7...
...Vacuum device 8,... 12...Powder level inspection/1lfft9
,]3...Vacuum bleed pipe 10.14...Inert waste air supply pipe]1...
... Upper hopper ceiling small lid 15 ... Rotor integrated 2 ( ) ... Hole 30 ... Rotor integrated : 1 ] ... Through hole patent dispatcher Kawasaki Steel Co., Ltd. Representative Patent Attorney Matsushita Gicho Ben Hitoshi Fumio Soejima Figure 3 (cl) Figure 3 (b)

Claims (1)

[Claims] Between the upper and lower hoppers, both of which have built-in powder charging level detection gauges, there is an airtight structure with a straight hole perpendicular to the axial direction of the body. −
An upper rotor having a barrel body is disposed, and a middle 5i in the axial direction of the body is provided between the vacuum chamber and the lower part of the lower hopper.
An apparatus for supplying powder to a vacuum system, which is characterized by a lower rotor having an integrated rotor with an airtight structure that cures pores and LVc.