JPH0743366A - Turn table for feeding sample container - Google Patents

Abstract

PURPOSE:To provide a turn table for feeding sample containers while holding stably and allowing easy take out of sample container therefrom. CONSTITUTION:Upper and lower turn tables 21, 31 are integrated through a predetermined interval. Upper slits 22 are made at a predetermined angular pitch in the outer peripheral edge part of the upper turn table 21 and an upper guide hole 23 is made including the cutting range of the upper slit 22. Lower slits 32 corresponding to the upper slits 22 are made in the outer peripheral part of the lower turn table 31 and a lower guide recess 33 corresponding to the upper guide hole 23 is formed including the cutting range of the lower slit 32. A sample container passed through the upper guide hole 23 is received, at the bottom thereof, in the lower guide recess 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention implements a Karl Fischer moisture determination method in which a sample to be measured contained in a sample container is heated to vaporize moisture and the amount of moisture contained in the sample is measured. The present invention relates to a turntable device for feeding a sample container.

[0002]

2. Description of the Related Art Generally, in a moisture measuring apparatus using the Karl Fischer moisture determination method, a sample to be measured is stored in a dry-purged sample container, and the inside of the sample container is connected to a measuring section. Then, this is heated from the outside to vaporize the moisture, and the vaporized moisture is introduced into the measurement section by the carrier gas to measure the amount of the moisture.

That is, in the case of this type of conventional moisture measuring apparatus, for example, as disclosed in Japanese Patent Laid-Open No. 1-216226, the sample to be measured is stored in a sample container which has been previously dry-purged. At the same time, the opening is hermetically sealed by the cover of the lid member, and with respect to the sample container in which the sample to be measured is hermetically stored under the dry purge in this way, the lid member is removed and opened immediately before the heating vaporization process. And, the opened sample container is moved to the measurement position of the device, and again sealed by the interposition of the O-ring, and thereafter,
The operation is processed and measured as described above.

However, in the above-mentioned conventional moisture measuring apparatus, in the measurement using the sample container in which the sample to be measured is stored, first, the lid member is removed immediately before the heating and vaporizing treatment, and the lid is once opened. Since it is moved to the measurement position and sealed again, the inside of the sample container in which the sample to be measured is hermetically stored under the dry purge should be opened once and then sealed again. In the meantime, even if it is a small amount, moisture invades from the ambient atmosphere, and the moisture content of the sample to be measured cannot be measured accurately and exactly. It has a fatal defect.

Therefore, the present inventors have previously proposed the following means for sealing and sealing the sample container.

[0006] That is, in the proposed new means, a thin film sheet-like lid piece that is incapable of infiltration of moisture from the outside is used to store the sample to be measured in the sample container under dry purge and to open the sample container. The thin film sheet-like lid piece is adhesively sealed to the part to be closed and sealed. According to the sample container configured as described above, when the moisture content of the sample to be measured is measured, the thin film sheet-like By directly piercing the lid piece with a communication needle or the like from the outside, the vaporized water of the sample to be measured can be easily taken out to the measurement section through the communication needle without opening the sample container again. it can.

[0007]

Here, in the moisture measuring means using the sample container, which is proposed by the present inventors, in which the opening of the sample container body is hermetically sealed with a thin film sheet-like lid piece, On the other hand, in the case of an apparatus configuration in which the sample container is placed on the turntable and fed, the problem remains, on the other hand, how stably the sample container is held on the turntable and effectively fed. On the other hand, on the other hand, how to remove the held sample container from the turntable without hindrance, each of these points is not always good at present. It was not improved.

The present invention has been made in order to solve the problem in such a turntable, and its object is to use a sample container which is hermetically sealed with a thin film sheet-like lid piece. In a device for measuring the water content of a sample to be measured in a container by the Karl Fischer moisture determination method, the sample container is stably held on a turntable and fed, and the sample container is externally fed from the turntable. It is an object of the present invention to provide a turntable device for feeding a sample container of this kind which can be easily taken out.

[0009]

In order to achieve the above-mentioned object, a sample container feeding turntable device according to the present invention uses a thin film sheet-like lid for the opening of a sample container body containing a sample to be measured. Using a sample container which is hermetically sealed, a thin film sheet-like lid piece of the sample container is pierced with a gas introduction needle and a vaporized water extraction needle, and the sample to be measured is heated from the outside to be contained. After vaporizing the moisture, the carrier gas introduced from the gas introducing needle is applied to the moisture measuring device configured to derive the vaporized moisture from the vaporized moisture derivation needle, and is placed and held on a turntable. In a turntable device for feeding a sample container, the turntable is composed of upper and lower turntables that are vertically integrated at a predetermined interval, and In the peripheral portion, an upper cutting slit is cut at a predetermined angular interval pitch, and an upper guide hole is formed to include a cutting range of the upper cutting slit, and an outer peripheral portion of the lower turntable is formed. A lower cutting slit that corresponds to the upper cutting slit is cut, and a lower guide recess that corresponds to the upper guide hole is formed to include the cutting range of the lower cutting slit, and the upper guide recess is formed. With the bottom of the sample container received through the guide hole placed and supported in the lower guide recess, from the lower side of the lower cut slit, the sample container that is placed and supported as described above is Also, it can be lifted above the upper turntable through the respective slits in the upper part.

[0010]

Therefore, in the sample container feeding turntable device according to the present invention, the bottom portion of the sample container received through the upper guide hole of the upper turntable is placed in the lower guide concave portion of the lower turntable for stable operation. It is possible to feed the sample container in this state, and in this state, the sample container can be easily lifted up and taken out above the upper turntable from the lower side of the lower cutting slit through the lower and upper cutting slits. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a turntable device for feeding a sample container according to the present invention will be described below in detail with reference to FIGS.

1 (a) and 1 (b) show a sample container in which a sample to be measured in a moisture measuring apparatus according to the present invention is stored and sealed, and a gas for a sealing thin film sheet-like lid piece of the sample container. It is each cross-sectional explanatory drawing which shows the penetration state of the introduction needle and the vaporized water extraction needle, respectively.

FIGS. 2 and 3 are partially enlarged perspective views showing a combination of a set of turntables in a sample container feeding turntable apparatus according to an embodiment of the present invention, and FIG. ), (B) are each another longitudinal cross-sectional view showing an enlarged main part configuration of the turntable device.

First, in FIGS. 1A and 1B, as the sample container 10 according to this example, a heat-resistant sample container body 11 having an opening 11a is used.
A sample 12 to be measured is stored in the inside of the chamber 1 in a dry-purged state, and a thin film sheet-like lid piece in which moisture cannot enter from the outside into the opening 11a, here, an aluminum foil film. A sheet piece (hereinafter, referred to as an aluminum sheet piece) 13 is adhered to the entire surface to hermetically seal the sheet piece.

Thus, the sample container 1 thus constructed
0 indicates a gas introduction needle 14 and a vaporized water derivation needle 15 with respect to the aluminum sheet piece 13 that hermetically seals the opening 11a.
Directly piercing and, and received the measured sample 12
Is used by evaporating the contained water by heating from the outside,
Although the detailed description of the measuring action is omitted here, the carrier gas supplied from the gas introducing needle 14 takes out the vaporized water of the sample to be measured 12 vaporized in the container from the vaporized water derivation needle 15, and The water content is measured.

2 to 4, a turntable device 20 to which the present embodiment is applied has upper and lower turntables 21 and 31 each consisting of a pair of upper and lower parts.
Each of these turntables 21 and 31 is integrated by a plurality of fixed support columns 30 at predetermined intervals in the vertical direction. In this case, a drive mechanism (not shown) horizontally provides a predetermined angular interval pitch. The feed rotation is intermittently performed every time.

Thus, with respect to the outer peripheral edge of the upper turntable 21, a plurality of upper notch slits 22 for pulling out each upper surface are formed at a predetermined angular interval pitch on the required pitch circle, Each upper guide hole 23 for receiving the sample container 10 is formed including the cutting range of each upper cutting slit 22. Similarly, with respect to the outer peripheral edge portion of the lower turntable 31, the upper cut slits 22 are also provided at a predetermined angular interval pitch on the required pitch circle.
Corresponding to each of the lower cutting slits 32 for taking out and the lower guide recesses 33 for receiving and mounting and supporting the sample container 10 including the cutting range of the lower cutting slits 32. Has been formed.

Therefore, in the integrated turntable device 20, the lower guide recesses are respectively passed through the upper and lower paired upper guide holes 23 formed in the upper and lower turntables 21 and 31, respectively. By mounting each individual sample container 10 on 33, the sample container 10 can be stably held and fed, and each sample container 10 held in this manner is placed on the turntable device 20. Since it is self-positioned, it is possible to perform an automated process or the like based on the mounting position.

On the other hand, in the state where the relevant sample container 10 is moved to a predetermined feeding position, by using, for example, an arbitrary elevating member having a width dimension narrower than the slit width, a lower slit slit is formed. From the lower side of 32,
The sample container 10 held and held here can be easily taken out by lifting it above the upper turntable 21 through the lower and upper cut slits 32, 22. In addition, the handling of the sample container 10 for the measurement operation becomes extremely good.

[0020]

As described above in detail with reference to the embodiments,
According to the present invention, a sample container in which the opening of the sample container body containing the sample to be measured is hermetically sealed with a thin film sheet lid piece is used, and a gas introduction needle is attached to the thin film sheet lid piece of the sample container. After the vaporized moisture outlet needle is pierced, the sample to be measured is externally heated to vaporize the contained moisture, and then the vaporized moisture is derived from the vaporized moisture outlet needle by the carrier gas introduced from the gas inlet needle. In the turntable device which is applied to the moisture measuring device and which feeds the sample container placed and held on the turntable, by the upper and lower turntables in which the turntables are vertically integrated at a predetermined interval. In addition to being configured, the upper turntable has an upper cutting slit formed at an outer peripheral edge of the upper turntable at a predetermined angular interval pitch, and an upper guide hole including a cutting range of the upper cutting slit. The lower turntable has a lower cutting slit that matches the upper cutting slit on the outer peripheral edge of the lower turntable, and also matches the upper guide hole that includes the cutting range of the lower cutting slit. Since the lower guide recess is formed, by placing the bottom of the sample container received through the upper guide hole in the lower guide recess, the sample container can be stably supported and stable feeding becomes possible. In this state, the supported sample container can be lifted above the upper turntable from the lower side of the lower cut slit through the lower and upper cut slits.

[Brief description of drawings]

1 (a) and 1 (b) are a sample container in which a sample to be measured in a moisture measuring apparatus according to an example of the present invention is stored and sealed, and gas is introduced into a sealing thin film sheet-like lid piece of the sample container. It is each cross-sectional explanatory view which shows the piercing state of a needle and a vaporized water extraction needle, respectively.

FIG. 2 is a plan view showing a partially enlarged perspective view of an upper turntable in a turntable device for feeding a sample container according to an embodiment of the present invention.

FIG. 3 is a plan view showing a partially enlarged perspective view of a lower turntable in the turntable device for feeding a sample container according to the embodiment.

4 (a) and 4 (b) are enlarged vertical cross-sectional views of main parts of the turntable device according to the embodiment.

[Explanation of symbols]

10 Sample Container 11 Heat-Resistant Container Body 11a Opening Port of Heat-Resistant Container Body 12 Sample to be Measured 13 Aluminum Sheet Piece (Thin Film Sheet-Shaped Lid Piece Incapable of Infiltration of Water) 14 Gas Introducing Needle 15 Vaporized Moisture Deriving Needle 20 Turntable Device 21 Upper turntable 22 Upper notch slit 23 Upper guide hole 30 Fixed column 31 Lower turntable 32 Lower notch slit 33 Lower guide recess

Claims (1)

[Claims] 1. A sample container in which an opening of a sample container body containing a sample to be measured is closed and hermetically sealed with a thin film sheet lid piece, and a thin film sheet lid piece of the sample container is provided with a gas introduction needle. In a state where the vaporized moisture derivation needle is pierced, after heating the sample to be measured from the outside to vaporize the contained moisture, the carrier gas introduced from the gas introduction needle vaporizes the vaporized moisture derivation needle. A turntable device which is applied to a water content measuring device adapted to derive water content and which feeds the sample container placed and held on a turntable, in which an upper part in which the turntable is vertically integrated at a predetermined interval and The upper turntable is configured by lower turntables, and the upper turntable is formed with upper cut slits at a predetermined angular interval pitch on the outer peripheral edge of the upper turntable. An upper guide hole is formed to include a range, and a lower cutting slit corresponding to the upper cutting slit is cut in an outer peripheral edge portion of the lower turntable, and a cutting range of the lower cutting slit. A lower guide recess that corresponds to the upper guide hole is formed, and the bottom of the sample container received through the upper guide hole is placed and supported in the lower guide recess. A sample container characterized in that the sample container, which is placed and supported as described above, can be lifted above the upper turntable through the respective lower and upper slits from the lower side of the lower slit. Turntable device for feeding.