JPH0312554A - Automatic sample bottle carrying device - Google Patents

Abstract

PURPOSE:To execute automatic carrying with high reliability by relaying a sample bottle from a sample bottle receiver of an automatic sample injecting device attached to each gas chromatograph to the next sample bottle receiver by an adjacent pick & place. CONSTITUTION:For instance, a No.1 sample bottle of a sample bottle store table 6 is analyzed by a gas chromatograph 1b. The table 6 rotates and carries the No.1 bottle to a position in which a pick & place 3a picks it up. Subsequently, the place 3a picks it up, rotates and stops as shown by a chain line, descends to a sample bottle receiver A of an automatic sample injecting device 2a and sets it down. Next, a bottle receiver 11a rotates and stops. Next, a pick & place 3b picks up the No.1 bottle, rotates and descends to a position of a bottle receiver Bb, opens a chuck and releases the No.1 bottle. Next, by an operation of an automatic sample injecting device 2b, the bottle receiver Bb is rotated until the No.1 bottle reaches a sample suction position, the sample is sucked, injected automatically into the chromatograph 1b, and the analysis is started. In such a way, the stored 6 sample bottle is analyzed one after another.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an automatic sample bottle transport device, and in particular, to an automatic transport device for automatically transporting a vial containing a sample liquid to a target one of a plurality of gas chromatographs. The present invention relates to an automatic sample bottle transporting device suitable for carrying out and analyzing sample bottles.

[Conventional technology]

As described in JP-A No. 63-82359, the conventional device aspirates a sample liquid with a syringe, moves the syringe to the Gas Chroma I/Graph, aligns it with the sample injection port, and injects it for analysis. It had a unique structure.

[Problem to be solved by the invention]

The above-mentioned conventional techniques do not take into account the following points, and there are problems as shown in the respective laws.

1. When moving the syringe to the gas chromatograph and aligning it with the sample injection port, a complicated and expensive mechanism is required to ensure accurate alignment.

2. The dimensions of the syringe movement mechanism change depending on the number of Gas Chroma I/Graphs, and the movement mechanism must be rebuilt each time the number changes.

3. Because some of the sample in the syringe evaporates during movement, there is a difference in the amount of evaporation between the gas chromatograph near the tray and the gas chromatograph 1~ graph far away, resulting in different chromatograms even for the same sample, which reduces the reliability of analysis. lacking in sex.

An object of the present invention is to solve the above-mentioned problems and provide an apparatus that does not require an alignment mechanism, is independent of the number of gas chroma graphs, and does not cause evaporation during sample movement.

[Means to solve the problem]

The above object is achieved by the following device.

1. Relay the sample bottle from the sample bottle holder of the automatic sample injection device attached to each gas chromatograph to the next sample bottle holder by adjacent pick and place. With pick-and-place, once the length of the arm attached to the chuck is fixed, the rotation angle at which the arm rotates parallel to the floor is also fixed, so there is no need for a special mechanism to achieve alignment accuracy. .

2. In the above-described apparatus, if the number of gas chromatographs increases or decreases, it is only necessary to increase or decrease the number of pink-and-places accordingly, and there is no need to modify the moving mechanism according to the number of gas chromatographs.

3. If the liquid sample is placed in a sample bottle and sealed and the sample bottle is transported, the problem that the amount of sample evaporation changes depending on the amount of movement does not occur.

[Effect]

The pick-and-place device is placed between each gas chromatograph, picks up the desired sample bottle from the sample bottle holder of the automatic sample injection device attached to the adjacent gas chromatograph, rotates it, and transfers it to the other adjacent gas chromatograph. Lower the sample bottle into the sample bottle holder of the automatic sample injection device attached to the machine and release it from the chuck. Therefore, if the pick-and-place position and the angle of one rotation of the arm length are partially set, there is no need to perform alignment every time it is transported.

Furthermore, if the number of pick-and-place units is prepared according to the number of gas chromatographs, there is no need to change the transport mechanism depending on the number of gas chromatographs. Furthermore, if the sample bottle is configured to be tightly sealed with a cap, the sample liquid will not evaporate while the sample bottle is being moved.

Further, the automatic sample injection bag and the sample bottle holder are configured to rotate, for example, as a turntable system.

After the sample bottle is placed by pick-and-place, the turntable is rotated so that the next pick-and-place moves to the position where it picks up the sample bottle, so that the arm or chuck of the pick-and-place is Accidents such as collisions due to malfunction can be prevented.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In FIG. 1, gas chroma 1 to graph la, :tb, and lc are fixedly mounted on a pedestal 8, on which automatic sample injection devices 2a, 2b, and 2c are attached, and furthermore, a pink and place 3a is mounted. .

3b and 3c are attached. Further, a pedestal 1o is fixed on the pedestal 8, and a sample bottle storage table 6 is fixed to the upper part of the pedestal 1o. Further, a control computer 7 is housed in the lower part of the pedestal 10. The pick and place has an arm 4 that can rotate parallel to the floor surface and move up and down, and a chuck 5 is attached to the tip of the arm 4.

The pick and place 3a picks up the sample bottle from the sample bottle storage table 6, rotates it, and transfers it to the automatic sample introduction device 2a.
is fixed and adjusted in a position that allows it to be lowered and inserted into the sample bottle holder. Similarly, pick and place 3b,
3c is also the sample automatic injection bag U2 on the gas chromatograph 1a.
It is fixed and adjusted at a position such that it can be transported from the sample bottle holder in a to the sample bottle holder in the automatic sample injection bag fi 22b, and further to the sample bottle holder in the automatic sample injection bag [2c.

The control computer 7 is connected to automatic sample injection bags @2a, 2b, 2c, pick ant places 3a, 3b, 3c, and sample bottle storage table 6 via an interface, and these terminal devices are controlled by a built-in program. can be controlled. When this device is started manually using the key of the control computer 7, it is programmed to start with the analysis of the Nα1 sample bottle in the sample bottle storage table, and the gas chromatograph suitable for analyzing the Nα1 sample bottle is 1b. Suppose that

Then, the sample bottle storage table first rotates? The sample bottle [ is brought to the position where the pick and place 3a picks it up, and then the pick and place 3a picks it up, rotates in the circumferential orbit indicated by the dashed-dotted line and stops, and then the sample bottle is placed in the automatic sample injection bag @ 2a. Lower and place on the sample bottle holder. This is the position A in FIG. Next, the sample bottle holder 11 rotates and stops at position B.

Then, the pick and place 3b picks up this sample bottle, rotates and descends to position C, opens the chuck, and releases the sample bottle. Next, by the operation of the automatic sample injection device 2b,
Rotate the sample bottle holder to bring the sample bottle to the sample suction position,
The sample is aspirated and automatically injected into the gas chromatograph 1b to start analysis. In this way, the sample bottles stored in the sample bottle storage table 6 are analyzed one after another according to the commands from the control computer 7.

According to this embodiment, by setting the sample bottles on the sample bottle storage table in advance and inputting the optimal gas chromatograph type for each sample into the computer, the sample bottles are automatically transported one by one and the sample is injected. 1 analysis is performed. Furthermore, since the pick-and-place arm moves along the trajectory shown by the dashed line in FIG. 1, there is an effect that accidents such as collisions between the arms when the computer goes out of control will not occur.

〔Effect of the invention〕

According to the present invention, when transporting a sample bottle, there is no need for a @ structure that requires positioning each time, there is no need to change the transport mechanism depending on the number of analyzers, and furthermore, sample evaporation during transport is eliminated. Since there is no
This has the effect of allowing JWi sending. Another advantage is that there is no risk of robot arms colliding with each other due to malfunction.

[Brief Description of the Drawings] Figures 1 (a) and (b) are front and top views of one embodiment of the present invention, and Figure 2 shows only the two gas chromatographs in Figure 1. It is a general view seen from the back. La, lb, lc...gas chromatograph, 2a. 2b, 2cm sample automatic injector, 3a+3bt30...
・Pick and place, 4... Arm, 5... Chuck, 6... Sample bottle storage table, 7... Control computer, 8... Stand, 9... Sample bottle, 10...
- Frame, Figure 1 2 Figure 3 Kuru

Claims (1)

[Scope of Claims] 1. A plurality of analyzers such as gas chromatographs are installed, each of which is equipped with an automatic sample injection device having a sample bottle holder such as a turntable, and one of the sample bottle storage tables is installed.
Place a suitable sample vial into one of the analyzers.
In the automatic sample bottle transport device that automatically transfers sample bottles to the sample bottle holder of the analyzer on the stand, the sample bottle storage table is located between the sample bottle storage table and the analyzer closest to it, and between this analyzer and the next adjacent analyzer. A pick-and-place robot is placed between each analyzer, and then between this analyzer and the next adjacent analyzer, and first the pick-and-place robot adjacent to the sample bottle storage table is The sample bottle holder of the analyzer is operated so that the next pick-and-place adjacent to it sequentially transports sample bottles from that sample bottle holder to the sample bottle holder of other adjacent analyzers, and the target analysis is carried out. An automatic sample bottle transport device that transports sample bottles to the device. 2. In claim 1, the position of the sample bottle holder where the sample bottle is placed by pick-and-place and the position where the sample bottle is picked up by the next pick-and-place are determined by rotation of the sample bottle holder, etc. structure that can be changed,
An automatic sample bottle transport device characterized by the following arrangement.