JPS6356132B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to pneumatic conveying equipment in which a jug and a cartridge are transported separately, a sample is stored in the jug, and the specimen is fitted into the cartridge for transport. Regarding the pneumatic box that accepts each sample separately, fits the jug containing the sample into the cartridge, and then transports it by air, it is particularly suitable for cases where the sample is a substance dangerous to the human body, such as a radioactive pollutant. Regarding shipping boxes.

BACKGROUND ART This type of pneumatic conveyance equipment, especially equipment that stores substances that are highly dangerous to the human body, such as radioactive contaminants, as samples in a jug and transports the samples by fitting them into cartridges to prevent contamination. From the standpoint of safety, it is required to perform various tasks automatically in an isolated and sealed space. However, in the past, the jig and cartridge were manually inserted into a sealed box through a pipe called a dobokan, the tongs were manually operated from outside the box, the sample was injected into the jag, and the jig was then removed. Fits into the cartridge,
Furthermore, these were housed in a delivery machine installed in a box and transported by air. For this reason, in the past, although the work was carried out in a sealed box, these operations and the insertion of the jig and cartridge were all done manually, leading to failures in sampling and failures in the fitting of the jig and cartridge. Not only were there failures and failures in insertion into the sending machine, but also the need for workers to be located near the box, so safety was not perfect, and the above requirements could not be met. .

Problems to be Solved by the Invention The present invention automates various operations including receiving a jig and a cartridge, carrying it in and out of a sampling bench, fitting and sending out a jig and cartridge, and also facilitates and secures the process. It is intended to meet the above-mentioned requirements.

Means for Solving the Problem The pneumatic box 1 is connected to the jig/cartridge supply station 2 by the pneumatic pipe 3 for supplying the jig and the pneumatic pipe 4 for supplying the cartridge, while the pneumatic box 1 is connected to the jig/cartridge supply station 2 by means of the pneumatic pipe 3 for supplying the jig and the pneumatic pipe 4 for supplying the cartridge. A sampling bench 7 that accommodates samples such as substances is connected via a pneumatic pipe 8 for transporting a jug and a pneumatic pipe 9 for transporting a jug. A rotor 10 is displaceably, for example, rotatably supported within the pneumatic feeding box 1, and the rotor 10 has a holding hole 11 for holding the jig 5 and a cartridge 6 larger than the holding hole 11. A holding hole 12 is provided for the purpose. The rotor 10 has a position where each holding hole 11, 12 corresponds to each supply pneumatic pipe 3, 4, respectively,
The position where the holding hole 11 corresponds to the pneumatic tube 8 for carrying in a jag, the position where the holding hole 11 corresponds to the pneumatic tube 9 for carrying in a jag, the position where the holding hole 12 also corresponds to the pneumatic tube 9 for carrying in a jag, and the holding position. The rotor 10 is sequentially displaced so as to stop at the position where the hole 12 fits the jig 5 and the cartridge 6, and the position where the holding hole 12 corresponds to the pneumatic pipe 13 connected to a sample analysis chamber or the like. The structure is such that various operations can be performed on the jig 5 or the cartridge 6 at the stopped position.

Function The jig 5 and cartridge 6 sent from the pneumatic pipe 3 for supplying the jig and the pneumatic pipe 4 for supplying the cartridge to the respective holding holes 11 and 12 of the rotor 10 in the standby state are moved according to the displacement of the rotor 10. to move inside the housing 35. First, the jag 5 is moved to a position corresponding to the pneumatic tube 8 for carrying out the jig, and is sent into the sampling bench 7. The sample is stored in the sampling bench 7 by a method such as injection, and is sent back to the rotor 10 by the jig 5 and the pneumatic tube 9 for carrying the jig, passes through the holding hole 11, and waits in the support hole 53. Next, the cartridge 6 is moved to correspond to this standby position,
The jag 5 falls and is held by this. Subsequently, the jig 5 and the cartridge 6 that have been moved to the fitted position are brought into a fitted state by being pushed by the push pin 57. The fitted jag 5 and cartridge 6 are further moved to a position corresponding to the pneumatic pipe 13 and transported by air to a sample analysis room or the like.

Embodiments Hereinafter, preferred embodiments in which the present invention is applied to air transportation of radioactively contaminated samples will be described in detail with reference to the accompanying drawings.

FIG. 6 is a schematic diagram showing the entire pneumatic conveying equipment, and shows the jig/cartridge supply station 2.
and each pneumatic feeding box 1, 101 are connected by a pneumatic tube 3 for supplying a jig and a pneumatic tube 4 for supplying a cartridge. Jig (5 in Figure 4) and cartridge (No.4) to each pneumatic box 1,101
The conveyance shown in 6) in the figure is determined by the switching operation of the converters 14 and 15. The jig (5 in Fig. 4) and the cartridge (6 in Fig. 4) are temporarily stopped near the connection end of each pneumatic box 1, 101 in the pneumatic pipe 3 for supplying the jig and the pneumatic pipe 4 for supplying the cartridge. Shutoff valves 16 and 116 are provided for this purpose, and when sensors (17 and 18 in Figure 5) detect that the jig (5 in Figure 4) and cartridge (6 in Figure 4) have arrived there, , shutoff valve 16,
116 is opened. 19, 20, 119, 12
0 is a suction port, which is communicated with intake blowers 21 and 121 through control valves (not shown), respectively. Further, 22 and 122 are equipped with sensors (23, 24, and 25 in FIG. 5) for detecting the amount of the sample contained in the jug (5 in FIG. 4), which is provided in each pneumatic box 1 and 101, respectively. The jig (5 in FIG. 4) stored therein is turned upside down by a reversing mechanism which will be described later. These jag inverters 22, 122
Also, the intake blower 2 is connected via a control valve (not shown).
1,121. Further, branch pipes 13a and 13b of a pneumatic pipe 13 connected to a receiving station in a sample analysis laboratory (not shown) are connected to the pneumatic transport boxes 1 and 101. 7,10
7 is a sampling bench, which is equipped with an injection device (not shown) for injecting samples contaminated with radioactivity into the jar (5 in Figure 4), and is shielded with lead to prevent radioactivity from leaking outside. has been done. Between the sampling bench 7, 107 and the pneumatic box 1, 101 are a pneumatic pipe 8, 108 for carrying out a jig, a pneumatic pipe 9, 109 for carrying in a jig located directly below the jig inverter 22, 122, and a return pipe 2 for returning the jig (5 in Fig. 4) with insufficient sample amount to the sampling bench 7, 107 together with the cartridge (6 in Fig. 4).
6,126 are arranged respectively. A JAG reception port 27, 127 is provided at the lowest end of the JAG carrying-in pneumatic pipe 8, 108, and a JAG transmission port 2 is provided at the lowest end of the JAG carrying-in pneumatic pipe 9, 109.
8,128 are provided. JAG received at JAG receiving port 27, 127 (5 in Figure 4)
After the sample is injected using an injector (not shown), the jag transmission ports 28, 12 are
Sent to 8. JAG receiving port 27, 127
is connected to the intake blower 21, 121, and the jag transmission port 28, 128 is connected to the intake air filter 29, 12.
It is connected to 9. In addition, in FIG. 6, 30 is also a supply air filter.

Next, the structure of the pneumatic box 1, 101 will be explained in more detail based on FIGS. 1 to 3. It should be noted that since the structures of the pneumatic feeding boxes 1 and 101 are the same, only the pneumatic feeding box 1 will be described. FIG. 1 is a plan view of the pneumatic box 1, FIG. 2 is an enlarged vertical sectional view of the pneumatic box 1, and FIG. 3 is a plan view showing the rotation mechanism of the rotor 10. , pneumatic box 1 is shield 3
1, 32, 33, and 34, the shield 31 is removable for inspection. As shown in FIG. 2, the housing 35 of the pneumatic box 1 is supported on the sampling bench 7 by support legs 36 and 37, and has an upper flange 38 and a lower flange 3 at the top and bottom, respectively.
9 is fixed. And housing 35
A disc-shaped rotor 10 is rotatably disposed in the circular hole provided in the rotor 10, and the rotor 10 is fixed to a rotating shaft 40 rotatably supported by flanges 38 and 39. Seal plates 41 and 4 are provided between the rotor 10 and each flange 38 and 39.
2 are arranged respectively. Also, rotor 1
0 is divided into upper and lower halves, and a spring 43 is disposed between these halves, so that the rotor 10 is brought into close contact with each of the seal plates 41 and 42 to improve airtightness. A ratchet 44 is fixed to the protruding end of the lower flange 39 of the rotating shaft 40,
A torque tender 45 is fixed to the ratchet 44, and the torque tender 45 is further connected to a swing arm 46. This swing arm 46
is connected to the output shaft of a drive motor 48 via a drive wire 47. Further, as more clearly seen in FIG. 3, the swing arm 46 has a ratchet 4
A return spring 5 is attached to the swing arm 46 and the claw 49.
0,51 are provided. Therefore, when the drive motor 48 is driven, the rotor 10 is rotated by a predetermined angle by the aforementioned ratchet mechanism. As shown in FIG.
There are two holding holes of different sizes in the thickness direction, a jig port 11 having the same diameter as the inner diameter of the jig supply pneumatic pipe 3, and a cartridge supply pneumatic pipe 4.
A cartridge port 12 having the same diameter as the inner diameter of the cartridge is transparently provided. The cartridge port 12 is larger than the jog port 11;
The mutual positional relationship is set such that when the cartridge port 12 is located directly below the cartridge supply pneumatic pipe 3, the cartridge port 12 is located directly below the cartridge supply pneumatic pipe 4. 52 is a pneumatic pipe for carrying out a jig (second
Upper flange 38 so that it is located directly above point 8) in the figure.
This is an air supply pipe installed vertically in the air supply pipe, and the air supply filter (6th
It is connected to 29) in the figure.

As is clear from FIG. 2, a cylindrical rotating block 54 whose axis is horizontal is supported in the jig inverter 22 so as to be rotatable about the axis. A support hole 53 of the same diameter is perpendicularly provided. A stopper arm (55 in FIG. 1) is attached to a fixed shaft fixed to match the rotational axis of the rotating block 54, and the fixed shaft is further connected to a spline shaft 56 connected to the output shaft of a drive motor 80. connected. Stopper arm (5 in Figure 1)
5) is a pair of upper and lower stoppers (81 in Figure 1)
(However, only the upper part is shown)
The rotating block 54 is driven by the drive motor.
Can be flipped 180 degrees. Each of the above components constitutes a reversing mechanism. Reference numeral 57 designates a push pin provided at the fitting position between the jig (5 in FIG. 4) and the cartridge (6 in FIG. 4), and a coil spring 59 is installed between the collar 58 and the upper flange 38. As a result, the push pin 57 is urged upward. Directly above the push pin 57 is located one end of a push rod 61 that is swingably supported by a support 60 fixed to the housing 35 . Pressure rod 6
A wire 63 connected to the output shaft of a drive motor 62 is attached to the other end of the drive motor 1 . When the wire 63 is pulled by the drive motor 62, the push pin 57 is lowered by the push rod 61. In addition, in FIG. 2, 64 is a bellows. Further, a positioning pin 65 for the rotor 10 is provided on the lower flange 39 and is urged upward by a coil spring 66 . This positioning pin 65
is attached to one end of an L-shaped rocking plate 68 that is swingably supported by a support 67 fixed to the lower flange 39, and a drive motor 69 is attached to the other end of the rocking plate 68. Wire 7 connected to the output shaft
0 is attached. When the wire 70 is pulled by the drive motor 69, the swing plate 6
8 swings counterclockwise in FIG. 2, the positioning pin 65 is retracted into the lower flange 39, allowing the rotor 10 to rotate. Reference numerals 71 and 72 are holes through which the positioning pin 65 is inserted through the rotor 10 and the seal plate 42. Also, in Figure 2,
73, 74, and 75 are position detection sensors for the rotor 10.

Next, the operation of the above-mentioned embodiment will be explained based on FIG. 5, which shows an exploded view of the pneumatic feeding box.

The jig 5 is pneumatically conveyed from the jig/cartridge supply station 2 through the pneumatic pipe 3 for supplying the jig and the pneumatic pipe 4 for supplying the cartridge.
The cartridge 6 is stopped above the cutoff valve 16 and its arrival is detected by sensors 17 and 18. At this time, the rotor 10 is in a standby state in which the jig port 11 is located directly below the pneumatic pipe 3 for supplying a jig, and the cartridge port 12 is located directly below the pneumatic pipe 4 for cartridge supply. When the shutoff valve 16 is opened by the detection signals from the sensors 17 and 18, the jig 5 and the cartridge 6 fall into the jig port 11 and the cartridge port 12, respectively, and are held there (state a in FIG. 5). . Subsequently, the rotor 10 is rotated by a predetermined angle, and the jig port 11 is connected to the pneumatic pipe 8 for carrying out the jig.
Then, the intake blower 21 operates, and the jag 5 falls inside the jig unloading pneumatic pipe 8 and is stored in the jig receiving port 27 (state b in FIG. 5). The sensor 76 detects that the jag 5 has fallen into the pneumatic pipe 8 for carrying out the jag. The JAG 5 into which the sample has been injected at the JAG reception port 27 in the sampling bench 7 is sent to the JAG transmission port 28. On the other hand, rotor 10
is rotated by a predetermined angle, and the jig port 11 is connected to the pneumatic pipe 9 for carrying in the jig and the support hole 53 of the jig inverter 22.
Move to the corresponding position. At this time, the cartridge 6 passes over the pneumatic pipe 8 for carrying out the jig, but the diameter of the cartridge 6 is smaller than the pneumatic pipe 8 for carrying out the jag.
Since the diameter of the cartridge 6 is larger than the diameter of the sampling bench 7, the cartridge 6 will not fall into the sampling bench 7. Then, the intake blower 21 operates again, and the jig 5 is conveyed by air from the jag transmission port 28 to the support hole 5.
The sensor 77 detects that the jag 5 is supported within the jig 3 and has passed through the jig carrying pneumatic pipe 9 (state c in FIG. 5). Here, the amount of sample injected into the jig 5 is determined by the sensor 2.
Detection is performed in three stages depending on which one of 3, 24, and 25 has issued a detection signal. After this sample amount detection, the rotor 10 is rotated by a predetermined angle, and the cartridge port 12 is moved directly below the support hole 53. At this time, the cartridge 6 is located directly above the pneumatic tube 9 for transporting the jug, but because of its large diameter, it will not fall. And the rotating block 54
is reversed at the same time as the rotor 10 rotates, and the jag 5 falls into the cartridge 6 in the reversed state (state d in FIG. 5). Further, the rotor 10 is rotated by a predetermined angle, and the cartridge port 12 holding the cartridge 6 and the jig 5 moves directly below the push pin 57. Here, the jig 5 is fitted into the cartridge 6 by pushing the push pin 57. Next, the rotor 10 is rotated by a predetermined angle, and the cartridge port 12 is moved to a position corresponding to the branch pipe 13a of the pneumatic pipe 13. jag 5
If the amount of sample in the sample has reached the standard amount, an intake blower installed at a receiving station in the sample analysis laboratory (not shown) operates, and the cartridge 6 fitted with the JAG 5 blows air into the receiving station. The paper is transported, and this transport is detected by the sensor 78 (state f in FIG. 5). On the other hand, if the amount of sample in the jag 5 has not reached the reference amount, the rotor 10 is rotated by a predetermined angle again, the cartridge port 12 is positioned corresponding to the return pipe 26, and the cartridge into which the jag 5 is fitted is rotated again. 6 falls into the sampling bench 7 (state g in Figure 5). This fall is detected by sensor 79. Then, the rotor 10 is further rotated by a predetermined angle and returned to a standby state in preparation for the next work on the jig 5 and cartridge 6.

Effects of the Invention As is clear from the above explanation, according to the present invention, it is possible to automatically and smoothly perform work on the jig and cartridge in a closed space, and also to operate the jig and the cartridge on the same rotor. By holding it, it is possible to achieve the excellent effects of improving work efficiency and making it possible to downsize the pneumatic box.

[Brief explanation of the drawing]

The figures show preferred embodiments of the present invention, in which Fig. 1 is a plan view of the pneumatic box, Fig. 2 is an enlarged vertical sectional view, and Fig. 3 is a plan view showing the rotor rotation mechanism.
Fig. 4 a is a plan view showing the jig, Fig. 4 b is a plan view showing the cartridge, Fig. 5 a, b, c, d, e,
f and g are operation explanatory diagrams, and FIG. 6 is a schematic diagram showing the entire air conveying equipment. 1,101...Pneumatic box, 2...Jag・
Cartridge supply station, 3...Jag supply pneumatic pipe, 4...Cartridge supply pneumatic pipe,
5...Jyag, 6...Cartridge, 7,107
... Sampling bench, 8,108 ... Pneumatic pipe for transporting JAG, 9,109 ... Pneumatic pipe for transporting JAG, 10 ... Rotor, 11 ... JAG port,
12... Cartridge port, 13... Pneumatic tube,
21,121...Intake blower, 22,122...
Jag inverter, 40...rotating shaft, 44...ratchet, 46...swinging arm, 49...nail, 53
... Support hole, 54 ... Rotating block, 57 ... Push pin.

Claims (1)

[Claims] 1 Receiving the jig and cartridge from the jig/cartridge supply station, feeding the received jig into the sampling bench, re-accepting the jig filled with sample in the sampling bench, and transferring the received jig to the waiting cartridge. In the pneumatic feeding box 1, the pneumatic feeding box 1 has a housing 35 and a disc-shaped rotary tube provided in a circular hole in the housing. It consists of a freely movable rotor 10, and the sides of the pneumatic box are shielded by shields 31, 32, 33, and 34, and an upper flange 38 and a lower flange 39 are fixed at the top and bottom, respectively. The rotor 10 is fixed to a rotating shaft 40 rotatably supported by the flanges 38 and 39, and
Seal plate 4 between flanges 38 and 39
In addition, two holding holes 11 and 12 of different sizes are provided in the rotor 10 to hold the jig 5 and the cartridge 6, respectively.
The rotor 10 is held movable in the vertical direction, and the rotating shaft 40 is linked to a drive motor 49 to displace the rotor 10 by a predetermined distance, thereby performing work on the jig 5 and the cartridge 6 at each stop position. A pneumatic box for pneumatic conveying equipment characterized by being configured as follows.