KR20230118454A - Apparatus for automatically sampling chemicals - Google Patents

Abstract

Disclosed is an automatic chemical sampling device for automatically sampling chemicals in a sample container. The automatic chemical sampling device includes a chamber including an inner space, a holder disposed in the inner space and having a sample container seated thereon, and a sample container disposed in the inner space so as to be able to move up and down on the upper part of the holder and lowered to be seated in the holder. and a sampling unit configured to be able to open and close the cap of the sample container while covering the top of the sample container and to inject a chemical into the sample container having the open cap.

Description

Chemical automatic sampling device {Apparatus for automatically sampling chemicals}

The present invention relates to an automatic chemical sampling device.

In general, chemical use places that use various chemicals, such as semiconductor factories or chemical factories, have various facilities for transporting, storing, managing, and processing chemicals, such as piping for transporting chemicals and storage tanks for storing chemicals. It is provided. In such places where chemicals are used, in order to manage the chemicals in a usable state, work of periodically sampling the chemicals from each facility or pipe accommodating the chemicals and inspecting the sampled chemicals are being performed.

Conventionally, a chemical sampling device has been proposed to solve the problem that the chemical sampling operation is performed manually, and the risk of exposure of the operator to the chemical always exists, and the chemical sampling requires a lot of effort and time of the operator. In addition, in the case of Patent Document 1 (Patent Publication No. 10-2303098), the cap rotation part and the cap lifting part used to separate the lid of the sampling container are described, which are disposed outside the case in which the container is accommodated.

However, in the chemical sampling device disclosed in Patent Document 1, chemicals may diffuse into the case or foreign substances inside the case may flow into the container during sampling. There is a problem with In particular, in the chemical sampling device disclosed in Patent Document 1, since the opening and closing position of the lid of the sampling container is different from the sampling position, in the process of transferring the sampling container filled with chemicals to the opening and closing position of the lid, the chemical is diffused inside the case or inside the case. of foreign matter is more likely to enter the container. In addition, since the lid opening/closing position and the sampling position are different, and the cap rotating part and the cap lifting part used to separate the lid of the container are exposed to the outside of the case, a problem of taking up a lot of space occurs.

Registered Patent Publication No. 10-2303098

The present invention has been devised to solve the above problems, and an object of the present invention is to provide an automatic chemical sampling device capable of minimizing the diffusion of chemicals and the inflow of foreign substances even with a simplified and miniaturized configuration.

An automatic chemical sampling device for automatically sampling a chemical in a sample container includes a chamber including an inner space, a holder disposed in the inner space and having a sample container seated therein, and a mount capable of moving up and down on the upper part of the holder in the inner space. A sampling unit configured to open and close the cap of the sample container and to inject a chemical into the sample container in which the cap is open, in a state in which the top of the sample container is disposed and lowered to cover the upper portion of the sample container seated on the mounting unit. include

In this case, the sampling unit includes a cover that is movably disposed on the upper part of the holder, has an open lower part, and covers an upper part of the sample container seated on the holder, disposed on the upper part of the cover, and penetrating the upper surface of the cover. A cap opening/closing unit configured to open and close a cap of a sample vessel located in an inner space of the cover through a hole, and a nozzle unit configured to inject a chemical into the sample vessel in which the cap is open through a through-hole on a side of the cover, wherein the cover When the top of the sample container is lowered and covered by the cover, the cap is opened by the cap opening and closing part and the chemical is injected by the nozzle part.

In this case, the cover may be spaced apart from the holder to form a space for the sample container to be seated on the holder, and may descend after the sample container is seated to cover an upper portion of the sample container.

Meanwhile, the cover may include a cover ring that contacts the sample container when the cover descends and seals a space between the sample container and the cover.

Meanwhile, the cover, the cap opening/closing part, and the nozzle part may rise and fall integrally.

Meanwhile, the cap opening/closing unit includes a cap gripper disposed in the inner space of the cover to grip the cap of the sample container, a shaft connected to the cap gripper through a through-hole on the upper surface of the cover, and a rotation drive to rotate the shaft. may include absences.

In this case, the cap opening/closing unit further includes an opening/closing unit lifting unit for lifting the cap opening/closing unit with respect to the cover, and the cap gripper, in a state in which the cover is lowered and the top of the sample container is covered by the cover, After descending by the opening/closing unit lifting unit, the cap of the sample container may be opened, and the sample container may be moved up by the opening/closing unit lifting unit while holding the cap of the sample container.

Meanwhile, the nozzle unit includes one or more chemical lines and outlets through which chemical flows, and extends into the inner space of the cover through the side through hole to discharge the chemical from the inner space of the cover through the outlet; and , With respect to the inlet of the sample container, it may include a nozzle advancing and retreating part for advancing and retreating the nozzle in a horizontal direction.

In this case, the cover may further include a nozzle ring installed in the side through hole and contacting the nozzle to seal a space between the sample container and the cover.

In this case, the cover may include a drain port formed at a lower portion of the side through hole to collect the balance flowing out through the outlet.

In this case, the discharge port is located above the inlet of the sample container as the nozzle advances in a state where the cap of the sample container is opened, and when the chemical is filled in the sample container, the drain port retracts as the nozzle moves forward. may be located on top of

On the other hand, the holding unit further includes a holding unit including the holding part and a clamp forward and backward part, wherein the holding part moves forward by a fixing clamp supporting one side of the sample container, and when the sample container is seated, by the clamp forward and backward part. A movable clamp fixing the sample container together with the fixing clamp may be included.

According to the present invention, by sampling the chemical in a state in which the top of the sample container is covered with a cover, there is an advantage in that diffusion of the chemical and inflow of foreign substances can be minimized while accommodating parts for sampling inside the chamber. By miniaturizing the device according to these advantages, the automatic chemical sampling device can be easily installed even in a narrow space.

According to the present invention, since the sample container is located at the same point until it is removed from the holder after being seated in the holder, and no parts for transporting the sample container are required, the device can be miniaturized and simplified.

According to the present invention, the modularized sampling unit by combining the nozzle unit, the opening and closing unit, and the cover can perform key functions of an automatic chemical sampling device, such as preventing the diffusion of chemicals, preventing the inflow of foreign substances, opening and closing the cap, and charging chemicals. . In addition, the sampling unit has the advantage of being used in combination with mounting means of various structures in various types of internal spaces by providing versatility in installation and use due to its compact size and simplified structure.

According to the present invention, as the plurality of nozzle rings are installed in both directions relative to the drain port, it is possible to prevent the balance of the chemical flowing out through the discharge port from spreading to the inner space of the cover and the outside of the cover.

According to the present invention, since the top of the sample container is covered by the cover, the cap gripper descends to open the cap, and sampling is performed by the nozzle unit, it is possible to easily respond to sample containers having different heights.

Furthermore, those skilled in the art to which the present invention belongs will be able to clearly understand from the following description that various embodiments according to the present invention can solve various technical problems not mentioned above.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical idea of the present invention, the present invention is the details described in such drawings should not be construed as limited to
1 is a perspective view showing an automatic chemical sampling device according to an embodiment of the present invention.
2 is a perspective view of a cover of a sampling unit viewed from one direction.
3 is an enlarged view of a side through hole of a cover of a sampling unit.
4 is a perspective view of a cover of a sampling unit viewed from another direction.
5 is a perspective view of an elevation unit of the automatic chemical sampling device and a cover of the sampling unit viewed from one direction.
6 is a perspective view of a nozzle unit of the automatic chemical sampling device and a cover of a sampling unit viewed from one direction.
7 is a perspective view of a nozzle of a nozzle unit viewed from above and below.
8 is a perspective view of a mounting unit of the automatic chemical sampling device, a cover of the sampling unit, and an opening/closing portion of the cap of the sampling unit, viewed from one direction.
9 to 12 are perspective views for explaining the operation of the automatic chemical sampling device according to the present embodiment.
13 is a perspective view illustrating an automatic chemical sampling device according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to clarify solutions to the technical problems of the present invention. However, in the description of the present invention, if the description of the related known technology makes the gist of the present invention unclear, the description thereof will be omitted. In addition, the terms used in this specification are terms defined in consideration of functions in the present invention, and they may vary according to the intention or custom of a designer or manufacturer. Therefore, the definitions of the terms to be described below will have to be made based on the content throughout this specification.

In the drawings, the size of each component or a specific part constituting the component is exaggerated, omitted, or schematically illustrated for convenience and clarity of explanation. Therefore, the size of each component does not fully reflect the actual size. If it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, such description will be omitted.

On the other hand, terms such as 'coupling', 'connection', 'mounting', and 'fixing' used in this specification refer to the case where one member is directly coupled, connected, mounted, or fixed to another member, as well as when one member is It also includes cases where it is indirectly coupled, connected, mounted, or fixed to another member through an intermediate member.

In addition, terms indicating directions such as front, back, left, right, up, and down described in this specification may vary depending on the position of the observer or the placed shape of the object. However, in this specification, for convenience of description, the negative and positive directions of the X-axis direction in the drawing are respectively referred to as the front and rear directions, and the negative and positive directions of the Y-axis direction are regarded as the left and right directions, respectively, and Z The positive and negative directions of the axial direction are regarded as up and down directions, respectively, to indicate directions such as front, rear, left, right, up, and down.

1 is a perspective view showing an automatic chemical sampling device according to an embodiment of the present invention.

As shown in FIG. 1, the automatic chemical sampling device 10 (hereinafter, simply referred to as 'device') includes a chamber 100, a sampling unit, a mounting unit 200, and a sampling unit lifting unit 600, It is configured to automatically sample the chemical in the sample container (S) in the inner space of (100). The sampling unit includes a cover 300 , a cap opening/closing unit 400 and a nozzle unit 500 .

Referring to FIG. 1, the chamber 100 has an internal space blocked from the outside, and in this internal space, a mounting unit 200, a sampling unit lifting unit 600, a cover 300, a cap opening and closing unit 400, and A sampling unit including the nozzle unit 500 is disposed.

A window 110 communicating with the inner space of the chamber 100 is formed on the outer surface of the chamber 100 . In addition, the chamber 100 may include an opening and closing door for opening and closing the window 110, and the opening and closing door may be configured to open and close the window 110 in a sliding or casement manner. Depending on the embodiment, the opening and closing door may be configured to operate automatically or manually.

As will be described again below, an operator performing a chemical sampling operation using the apparatus 10 according to the present invention simply opens the opening and closing door of the chamber 100 and places the sample container ( S) just needs to be seated. Then, the device 10 lowers the sampling unit, covers the top of the sample container with the cover 300 of the sampling unit, opens the cap of the sample container with the cap opening/closing part 400 of the sampling unit, and opens the nozzle part of the sampling unit. In step 500, the chemical is filled in the internal accommodation space of the sample container (S), the cap of the sample container is closed with the cap opening/closing part 400 of the sampling unit, and the sampling unit is raised again. Thereafter, the operator only needs to collect the sample container S filled with the chemical.

The chamber 100 may further include an exhaust unit having a communication space formed therein to discharge metal components or foreign substances from the internal space of the chamber 100, and an air supply unit supplying clean air to the inside of the chamber 100. there is.

The sampling unit may be movably disposed above the mounting unit 210 of the mounting unit 200 in the inner space of the chamber 100 . In addition, the sampling unit may be configured to be able to open and close the cap of the sample container while covering the top of the sample container seated on the holder 210 by descending, and to inject a chemical into the sample container with the cap opened. there is. To this end, the sampling unit may include a cover 300 , a cap opening/closing unit 400 and a nozzle unit 500 .

2 is a perspective view of a cover of a sampling unit viewed from one direction. 3 is an enlarged view of a side through hole of a cover of a sampling unit. 4 is a perspective view of a cover of a sampling unit viewed from another direction.

Referring to FIGS. 1 to 4 , the sampling unit may cover an upper portion of a sample container seated on the holder 210 . Specifically, the lower portion of the cover 300 of the sampling unit is open to cover the upper portion of the sample container seated on the holder 210 of the holder unit 200 . More specifically, the cover 300 has a tubular structure, and an inner space 305 may be formed inside the cover 300 . In addition, the lower portion of the cover 300 may be opened to cover the upper portion of the sample container seated on the holder 210 . In this case, the upper end of the sample container including the cap may be introduced into the inner space 305 of the cover 300 and covered by the cover 300 .

The sampling unit may be movably disposed above the holder 210 in the inner space of the chamber 100 . In detail, the cover 300 of the sampling unit may be movably disposed above the holder 210 in the inner space of the chamber 100 . More specifically, the cover 300 may be raised and lowered by the sampling unit elevating unit 600, and when lifted, the cover 300 is spaced apart from the holder 210 so that the sample container is seated on the holder 210. space can be created for In this case, the operator performing the chemical sampling operation may open the opening and closing door of the chamber 100 and seat the sample container on the holder 210 through the spaced space between the cover 300 and the holder 210. there is. Also, when the sample container is seated on the holder 210, the cover 300 may be lowered by the sampling unit lifting unit 600 to cover the top of the sample container. In addition, the cover 300, the cap opening/closing unit 400, and the nozzle unit 500 constituting the sampling unit may be integrally raised and lowered, and this will be described in detail later.

The cover 300 may have a cylindrical shape and may cover an upper portion of a sample container having a cylindrical shape. In addition, the inner diameter of the opening 340 on the lower surface of the cover 300 may be larger than the outer diameters of the cap of the sample container and the top of the sample container. Accordingly, the cap positioned at the top of the sample container and the upper end of the sample container may be introduced into the inner space 305 of the cover 300 and covered by the cover 300 .

The cover 300 may include a cover ring 371 that contacts the sample container when the cover 300 descends and seals a space between the sample container and the cover 300 . Specifically, a cover ring groove 361 for accommodating the cover ring 371 is formed along the inner circumferential surface of the cover 300, and the cover ring 371 is fixed to the cover ring groove 361 and may protrude from the inner circumferential surface. The cover ring 371 may be an O-ring made of synthetic rubber, synthetic resin, or the like and having a circular cross section.

In addition, the inner diameter of the cover ring 371 may be larger than the outer diameter of the cap of the sample container and smaller than the outer diameter of the lower end of the sample container. Also, when the cover 300 descends, the cover ring 371 may contact along the outer circumferential surface of the upper end of the sample container. Accordingly, a space between the sample container and the cover 300 may be blocked from a space outside the cover 300 .

Meanwhile, the shape of the cover 300 may be variously modified to correspond to the shape of the sample container. For example, when the sample container has a rectangular parallelepiped shape, the cover 300 may also have a rectangular parallelepiped shape having an inner space.

Meanwhile, a side through hole 395 penetrating the side of the cover 300 in a horizontal direction may be formed on the side of the cover 300 . Through the side through hole 395 , the nozzle unit 500 may extend from the outside of the cover 300 to the inside space 305 .

The cover 300 includes one or more nozzle rings 351 and 352 installed in the through-hole 395 on the side of the cover 300 and contacting the nozzle unit 500 to seal the space between the sample container and the cover 300. ) may be included.

Specifically, one or more nozzle ring grooves 341 and 342 for accommodating one or more nozzle rings 351 and 352 are formed along the inner circumferential surface of the side through hole 395, and the one or more nozzle rings 351 and 352 are one It is fixed to the above nozzle ring grooves 341 and 342 and may protrude from the inner circumferential surface. The one or more nozzle rings 351 and 352 may be O-rings made of synthetic rubber, synthetic resin, etc. and having a circular cross section, and the one or more nozzle rings 351 and 352 are formed on the outer circumferential surface of the nozzle (510 in FIG. 6). can contact Accordingly, the inner space 305 of the cover 300 does not communicate with the outside of the cover 300 through the side through hole 395, and the space between the sample container and the cover 300 is separated from the space outside the cover 300. may be blocked.

Meanwhile, the cover 300 may include a drain port 335 formed below the side through hole 395 to collect the balance of the chemical flowing out through the discharge port of the nozzle unit 500 . Specifically, the drain port 335 is formed by vertically penetrating the side surface of the cover 300, and the inlet 381 through which the balance of the chemical flows is located on the inner surface of the side through-hole 395 through which the balance of the chemical flows out. The outlet 382 may be formed on the lower surface of the cover 300 . Meanwhile, the apparatus 10 may further include a discharge pipe connected to the outlet 382 to discharge chemicals or cleaning fluids to the outside, and a check valve installed in the discharge pipe to prevent a reverse flow of the effluent.

Meanwhile, a top surface through hole 320 penetrating the top surface of the cover 300 in a vertical direction is formed on the top surface of the cover 300, and the cap opening/closing part 400 passes through the top surface through hole 320 to the outside of the cover 300. It may extend into the inner space 305 from. In addition, a blocking means such as an O-ring is provided on the inner surface of the top through hole 320 to block the inner space 305 of the cover 300 from the outside by contacting the shaft (453 in FIG. 8) of the cap opening and closing part 400. It can be.

5 is a perspective view of an elevation unit of the automatic chemical sampling device and a cover of the sampling unit viewed from one direction.

Referring to FIGS. 1 and 5 , the sampling unit elevating unit 600 may elevate the sampling unit. Specifically, the sampling unit lifting unit 600 lifts the cover 300 so that the cover 300 of the sampling unit is spaced apart from the holder 210 to form a space for the sample container to be seated on the holder 210. can make it Also, the sampling unit lifting unit 600 may lower the cover 300 of the sampling unit so that the top of the sample container seated on the mounting unit 210 is covered.

The sampling unit lifting unit 600 may include one or more sampling unit lifting guide rails 610 , a sampling unit lifting driver 620 and a sampling unit lifting frame 630 .

The sampling unit cover 300 may be coupled to and fixed to the sampling unit elevating frame 630 . Since the sample container is accommodated into the chamber 100 from the front of the cover 300 , the sampling unit elevating frame 430 may be coupled to the rear surface of the cover 300 .

One or more sampling unit elevating guide rails 610 may be fixed to a predetermined position inside the chamber 100 and extend in a vertical direction to guide the vertical movement of the sampling unit elevating frame 630 . In addition, the sampling unit elevating driver 620 may be implemented as a drive motor or a pneumatic or hydraulic cylinder to generate power to provide power to the sampling unit elevating frame 630 .

Meanwhile, the cap opening/closing unit 400 and the nozzle unit 500 may be coupled to the cover 300 . Accordingly, the cover 300, the cap opening/closing unit 400, and the nozzle unit 500 can be raised and lowered integrally by the sampling unit lifting unit 600.

6 is a perspective view of a nozzle unit of the automatic chemical sampling device and a cover of a sampling unit viewed from one direction. 7 is a perspective view of a nozzle of a nozzle unit viewed from above and below.

Referring to FIGS. 1, 6, and 7 , the sampling unit may inject a chemical into a sample container having an open cap. In detail, the nozzle unit 500 of the sampling unit may inject a chemical into a sample container having an open cap through a side through hole 395 of a cover. More specifically, the nozzle unit 500 extends from the outside of the cover 300 to the inner space 305 of the cover through the through hole 395 on the side of the cover, and extends from the inner space 305 of the cover to the top of the sample container. Chemicals can be injected through the outlet located there.

The nozzle unit 500 includes one or more chemical lines 511a, 511b, and 511c through which chemical flows and one or more outlets 516, and extends into the inner space of the cover 300 through the side through hole 395 of the cover. It may include a nozzle 510 to be. The nozzle 510 may discharge the chemical from the inner space 305 of the cover through the outlet 516 .

Specifically, one or more chemical lines 511a, 511b, and 511c are disposed inside the nozzle 510, and the chemical discharged from the one or more chemical lines 511a, 511b, and 511c passes through the common space 513 to the discharge port 516. ) can be moved. In addition, the outlet 516 is disposed above the sample container, so that the chemical discharged from the outlet 516 may be supplied to the inside of the sample container.

Meanwhile, the nozzle unit 500 may include a nozzle advancing/retracting unit 520 for advancing/retracting the nozzle 510 in a horizontal direction with respect to the inlet of the sample container. Specifically, the nozzle retraction 520 may be implemented as a pneumatic or hydraulic cylinder that drives the nozzle 510 linearly and reciprocally, and advances the nozzle 510 toward the inlet of the sample container or in the opposite direction to the inlet of the sample container. can retreat

When the nozzle 510 advances by the nozzle advance and retreat part 520, the discharge port 516 of the nozzle 510 is located above the inlet of the sample container, and the device 10 discharges chemicals while the nozzle 510 advances. can be supplied into the inside of the sample container.

In addition, when the nozzle is retracted by the nozzle advancing and retracting portion 520, the outlet 516 of the nozzle 510 may be located above the drain port. In this case, the drain port 335 may collect the balance of the chemical flowing out from the outlet 516 .

One or more chemical lines 511a , 511b , and 511c may supply a chemical from the outside of the chamber 100 to an internal space of the chamber 100 . The device 10 further includes an opening/closing valve (not shown) that individually opens and closes the chemical lines 511a, 511b, and 511c, and the device 10 includes an outlet 516 of the nozzle 510 at the inlet of the sample container. When positioned at the top, the on/off valve may be controlled to open any one of the one or more chemical lines 511a, 511b, and 511c. In addition, when the charge amount of the chemical exceeds a threshold value or leakage of the chemical is detected, the device 10 may control the opening/closing valve to close the open chemical line.

Meanwhile, the device 100 may include a plurality of chemical lines 511a, 511b, and 511c, and the plurality of chemical lines 511a, 511b, and 511c each carry chemicals located at different points or different types of chemicals. It can be configured to enable sampling.

Meanwhile, the nozzle 510 may further include a cleaning line for cleaning the common space 513 . The cleaning line may be disposed inside the nozzle 510 , receive a cleaning liquid from a cleaning liquid tank outside the chamber 100 , and spray the cleaning liquid into the common space 513 . Deionized water (DIW) may be used as a cleaning solution.

Meanwhile, the nozzle unit 500 may be coupled to the cover 300 by various fastening means. Accordingly, when the sampling unit lifting unit 600 lifts the cover 300, the nozzle unit 500 rises integrally with the cover 300, and the sampling unit lifting unit 600 moves the cover 300 down. In this case, the nozzle unit 500 may descend integrally with the cover 300 .

8 is a perspective view of a mounting unit of the automatic chemical sampling device, a cover of the sampling unit, and an opening/closing portion of the cap of the sampling unit, viewed from one direction.

Referring to FIGS. 1 and 8 , the holder 210 of the device 10 may be disposed in an internal space of the chamber 100 and a sample container may be seated therein. The holder 210 provides a seating space in which the sample container S can be seated, and for this purpose, the holder 210 may include a seating groove in which the sample container is seated. In addition, the mounting unit 210 may further include a sensor 240 that detects the sample container seated in the seating groove.

Meanwhile, the mounting unit 200 of the device 10 is disposed in the inner space of the chamber 100, and includes a mounting portion 210 on which the sample container is seated, a clamp forward and backward portion 220, and a mounting portion on which the mounting portion 210 is seated. A plate 230 may be included.

The mounting unit 210 may include a movable clamp 210b supporting one side of the sample container and a fixed clamp 210a supporting the other side of the sample container. The fixed clamp 210a is fixed to the mounting plate 230, and the movable clamp 210b may be installed on the mounting plate 230 to be movable in the direction of the sample container and in the opposite direction to the sample container.

The clamp advance and retreat portion 220 may include a clamp advance and retreat portion 220 that moves the movable clamp 210b forward and backward with respect to the sample container in a horizontal direction. Specifically, the clamp advance and retreat part 220 may be implemented as a pneumatic or hydraulic cylinder that linearly reciprocates the movable clamp 210b, and advances the movable clamp 210b in the direction of the sample container seated on the mounting part 210. Alternatively, it may be retracted in the opposite direction of the sample container seated on the holder 210.

When the movable clamp 210b is retracted by the clamp advance and retreat part 220, the fixed clamp 210a and the movable clamp 210b are spaced apart to form a space for the sample container to be seated on the holder 210. .

In addition, when the sample container is seated on the holder 210, the movable clamp 210b moves forward toward the sample container by the clamp forward and backward portion 220, thereby fixing the sample container together with the fixed clamp 210a.

Referring to FIGS. 1 and 8 , the sampling unit may open and close the cap of the sample container. Specifically, the cap opening and closing part 400 of the sampling unit is disposed on top of the cover 300 in the inner space of the chamber 100, and the sample container located in the inner space of the cover through the upper surface through hole (320 in FIG. 2) of the cover cap can be opened and closed. More specifically, the cap opening/closing part 400 extends from the upper part of the cover 300 to the inner space of the cover (305 in FIG. 4) through the upper surface through hole (320 in FIG. 2) of the cover, and is seated on the mounting part 210. The cap of the sample container may be opened or closed by rotating the cap gripper 422 disposed in the inner space of the cover ( 305 in FIG. 4 ).

The cap opening/closing unit 400 is a cap gripper 422 disposed in the inner space of the cover (305 in FIG. 4 ) to grip the cap of the sample container, and the cap gripper 422 through a through-hole (320 in FIG. 2 ) on the upper surface of the cover. It may include a shaft 453 connected to and a rotation driving member 460 that rotates the shaft 453 .

The cap gripper 422 is configured to grip the cap of the sample container. To this end, the cap gripper 422 is disposed along the circumference of the side of the cap around the cap of the sample container, and includes a plurality of fingers gripping the circumference of the side of the cap while moving in a radial direction to narrow the distance between them. can

In addition, the cap gripper 422 may open or close the cap of the sample container by rotating it in one direction or the other direction while gripping the cap. In this case, the cap opening/closing unit 400 may be configured to ascend or descend along a screw thread or a screw groove formed on an inner surface of the cap while rotating the cap of the sample container.

The cap gripper 422 is fixed to the lower end of the shaft 453, the shaft 453 passes through the upper surface through hole (320 in FIG. 2) of the cover, and the rotation driving member 460 is installed at the upper end of the shaft 453. Connected. Accordingly, the cap gripper 422 may be disposed in the inner space of the cover (305 in FIG. 4 ), and the rotary driving member 460 may be disposed outside the cover 300 .

The rotation driving member 460 may rotate the shaft 453 in one direction or another direction. To this end, the rotary driving member 460 may include a driving motor generating rotational force and a power transmission mechanism transmitting rotational force to the shaft 453 .

Meanwhile, the cap opening/closing unit 400 of the device 10 may further include an opening/closing unit lifting unit 470 that lifts the cap opening/closing unit with respect to the cover 300 . The opening/closing unit lifting unit 470 includes an opening/closing unit lifting frame 473, an opening/closing unit lifting driving member 476, one or more opening/closing unit lifting guide rails 482, a first fixing member 479, and one or more second fixing members 485. can include

The rotation driving member 460 is seated on the upper part of the opening and closing part lifting frame 473, and the shaft 453 may pass through the through hole of the opening and closing part lifting frame 473 and extend to the lower part of the opening and closing part lifting frame 473.

The opening/closing portion lifting driving member 476 may linearly reciprocate the cylinder 487 disposed in the vertical direction with pneumatic or hydraulic pressure, and the cylinder 487 may be connected to the first fixing member 479 . In addition, the first fixing member 479 may be coupled to the cover 300 , and the opening/closing unit lifting driving member 476 may be coupled to the opening/closing unit lifting frame 473 . And, by the power generated by the opening and closing part lifting driving member 476, the opening and closing part lifting driving member 476, the opening and closing part lifting frame 473, the rotary driving member 460, the shaft 453 and the cap gripper 422 cover ( 300) can rise or fall integrally.

Also, the opening/closing unit lifting unit 470 may raise and lower the cap opening/closing unit 400 while the cover 300 does not move. Specifically, the opening/closing unit lifting unit 470 may lower the cap opening/closing unit 400 in a state where the cover 300 is lowered and the top of the sample container is covered by the cover 300. In this case, the cap gripper 422 may descend from the inner space of the cover (305 in FIG. 4) to open the cap of the sample container. In addition, the opening/closing unit lifting unit 470 may lift the cap opening/closing unit 400 in a state where the cover 300 is lowered and the top of the sample container is covered by the cover 300. In this case, the cap gripper 422 It can rise while holding the cap of the sample container in the inner space of the cover (305 in FIG. 4).

One or more opening/closing part lifting guide rails 482 may extend in a vertical direction to guide the vertical movement of the opening/closing part lifting frame 473 . In addition, one or more opening/closing part lifting guide rails 482 may be fixed to one or more second fixing members 485 of the opening/closing part lifting part 470 .

The first fixing member 479 and one or more second fixing members 485 may be coupled to the cover 300 to help the cap opening/closing part 400 ascend or descend with respect to the cover 300 . In addition, as the first fixing member 479 and one or more second fixing members 485 are coupled to the cover 300, the cover 300 and the cap opening/closing part 400 are integrally formed by the sampling unit elevating unit 600. can ascend and descend.

Meanwhile, the device 10 may include a controller that controls overall operations of the device 10 . The control unit may be implemented as a combination of computer hardware, such as a memory and a processor, and a software program stored in the memory and executed by the processor.

The apparatus 10 is configured such that the cap is opened by the cap opening/closing unit 400 and the chemical is injected by the nozzle unit in a state where the cover is lowered and the top of the sample container is covered by the cover. A detailed operation process will be described with reference to FIGS. 9 to 12 .

9 to 12 are perspective views for explaining the operation of the automatic chemical sampling device according to the present embodiment.

The sample container (S) has an internal accommodating space for accommodating chemicals, and an inlet communicating with the internal accommodating space of the sample container (S) is formed at an upper end thereof. In addition, an openable and closable cap (C) is coupled to the inlet of the sample container (S). The cap (C) of the sample container (S) may be configured to be opened and closed by a screw method or a twist method.

9 is a view showing a state before the sample container is seated.

Referring to FIG. 9 , the cover 300, the cap opening/closing unit 400, and the nozzle unit 500 constituting the current sampling unit are raised together. In this case, the cover 300 may be spaced apart from the holder 210, and a space 261 for mounting the sample container may be formed between the cover 300 and the holder 210. In addition, the movable clamp 210b of the mounting unit 200 is retracted by the clamp advance and retreat part 220 so that the fixed clamp 210a and the movable clamp 210b are spaced apart, and between the fixed clamp 210a and the movable clamp 210b. A space 262 is formed in which the sample container is seated.

FIG. 10 is a view showing a state in which the sample container S is seated, the movable clamp 210b is advanced, and the cover 300 is lowered.

An operator may open the opening and closing door of the chamber 100 to seat the sample container S in the seating space formed by the mounting unit 210 and then close the opening and closing door again. And when the sample container (S) is seated, the clamp advance and retreat part 220 may advance the movable clamp (210b) in the direction of the sample container (S). In this case, the separation distance between the movable clamp 210b and the fixed clamp 210a is reduced, and the movable clamp 210b and the fixed clamp 210a may fix the sample container S at both sides of the sample container S.

Then, the sampling unit may descend to cover the top of the sample container seated on the holder 210 . Specifically, the cover 300, the cap opening/closing part 400, and the nozzle part 500 are integrally lowered by the sampling unit lifting unit 600, and the cover 300 may cover the top of the sample container S. there is. More specifically, as the cover 300 descends, the upper end of the sample container S including the cap C may be drawn into the inner space of the cover 300 ( 305 in FIG. 4 ).

In addition, as the cover 300 descends, the cover ring (371 in FIG. 4 ) formed along the inner circumferential surface of the cover 300 contacts the upper end of the sample container S, so that the lower surface of the cover 300 closes the opening 340. . In addition, one or more nozzle rings (351 and 352 in FIG. 3) come into contact with the nozzle (510 in FIG. 6) so that the side through hole 395 is sealed, and the upper surface through hole 320 through which the shaft 453 passes is also It is sealed by the blocking means. Therefore, the top of the sample container (S) is sealed by the cover 300, and the space 263 between the sample container (S) and the cover 300 may be blocked from the outside of the cover 300.

11 is a view showing a state in which the cap (C) of the sample container is separated.

In a state in which the upper portion of the sample container seated in the mounting unit is covered, the sampling unit may open the cap of the sample container. Specifically, in a state in which the cover 300 is lowered and the top of the sample container S is covered by the cover 300, the opening/closing part lifting part 470 can lower the cap opening/closing part 400 with respect to the cover 300. there is. Accordingly, the opening/closing part lifting frame 473, the rotary driving member 460, the shaft 453, and the cap gripper 422 move down, and the cap gripper 422 can grip the cap C of the sample container. Also, while the cap C is gripped by the cap gripper 422, the cap gripper 422 may be rotated in one direction by rotational force provided by the rotation driving member 460. Accordingly, the cap (C) is separated from the sample container (S), and the separated cap (C) can maintain a gripped state by the cap gripper (422).

Meanwhile, in a state in which the separated cap C is gripped by the cap gripper 422 , the opening/closing unit lifting unit 470 may lift the cap opening/closing unit 400 relative to the cover 300 . Accordingly, the opening/closing part lifting frame 473, the rotary driving member 460, the shaft 453, and the cap gripper 422 rise, and the cap C gripped by the cap gripper 422 also moves upward to move the sample container ( S) is located at the top.

12 is a view showing a state in which chemicals are supplied to the inside of the sample container (S).

In a state in which an upper portion of the sample container seated in the mounting unit is covered, the sampling unit may inject a chemical into the sample container having an open cap. Specifically, in a state in which the cap of the sample container S is open, the nozzle advance and retreat part 520 advances the nozzle 510 in the inlet direction of the sample container, so that the outlet of the nozzle 510 (516 in FIG. 7 ) is sampled. It can be placed on top of the mouth of the container. In addition, in a state where the discharge port (516 of FIG. 7) of the nozzle 510 is located above the inlet of the sample container, the chemical may be discharged from one chemical line, and the chemical may be sampled through the outlet (516 of FIG. 7). It may be supplied to the inside of the container (S).

Meanwhile, when the chemical filling of the sample container S is completed, the device 10 may operate in the reverse order of the previous description. Specifically, when the chemical is filled in the sample container (S), the nozzle advance and retreat part 520 retreats the nozzle 510 in the opposite direction to the inlet of the sample container, so as shown in FIG. 11, the outlet of the nozzle 510 ( 516 of FIG. 7 may be positioned above the drain port 335 . In addition, the remaining chemical or cleaning liquid remaining inside the nozzle 510 may be discharged to the outside of the chamber 100 through a drain port (335 in FIG. 3 ) and a discharge pipe connected to the drain port 335 .

In a state in which the top of the sample container seated in the mounting unit is covered, the sampling unit may close the cap of the sample container. Specifically, in a state in which the nozzle 510 is retracted, the opening/closing unit lifting unit 470 may lower the cap opening/closing unit 400 with respect to the cover 300 . Accordingly, the opening/closing unit elevating frame 473, the rotary driving member 460, the shaft 453, and the cap gripper 422 descend, and the cap C gripped by the cap gripper 422 moves toward the entrance of the sample container S. can be contacted with

Subsequently, when the cap gripper 422 is rotated in the other direction by the rotational force provided by the rotary driving member 460, the cap C may be coupled to the sample container S again. Further, in a state in which the cap C is separated from the cap gripper 422 , the opening/closing unit lifting unit 470 may lift the cap opening/closing unit 400 relative to the cover 300 . Accordingly, the opening/closing unit elevating frame 473, the rotary driving member 460, the shaft 453, and the cap gripper 422 are elevated, and as shown in FIG. 10, the cap gripper 422 is positioned above the sample container S. can be located in

In a state where the cap C is coupled to the sample container S, the sampling unit elevating unit 600 may elevate the sampling unit. In this case, the cover 300, the cap opening/closing part 400, and the nozzle part 500 are integrally raised by the sampling unit lifting unit 600, and as shown in FIG. 9, the cover 300 and the holding part 210 ) can increase the separation distance. Also, since the movable clamp 210b of the mounting unit 200 is retracted by the clamp advance and retreat part 220, the separation distance between the fixed clamp 210a and the movable clamp 210b may increase. In addition, the operator may open the opening and closing door of the chamber 100 so that the holder 210 may collect the sample container S or place a new sample container S on the holder 210 .

13 is a perspective view illustrating an automatic chemical sampling device according to another embodiment of the present invention.

The chamber 100 may include a partition wall 120 . In this case, the partition wall 120 may extend in a vertical direction to divide the internal space of the chamber 100 into a front space 140 and a rear space 135 .

A first window 130 communicating with the front space 140 of the chamber 100 is formed on an outer surface of the chamber 100 . In addition, the chamber 100 may include a first opening and closing door for opening and closing the first window 130, and the first opening and closing door may be configured to open and close the first window 130 in a sliding or casement manner. Depending on the embodiment, the first opening and closing door may be configured to operate automatically or manually.

A second window 125 communicating the front space 140 and the rear space 135 is formed in the partition wall 120 of the chamber 100 . In addition, the chamber 100 may include a second opening and closing door for opening and closing the second window 125, and the second opening and closing door may be configured to open and close the second window 125 in a sliding or casement manner. Depending on the embodiment, the second opening and closing door may be configured to operate automatically or manually.

A sampling unit including a holding unit 200 , a sampling unit elevating unit 600 , a cover 300 , a cap opening/closing unit 400 and a nozzle unit 500 may be disposed in the rear space 135 . Also, in the front space 140 , a container transfer unit 80 for carrying in and out of the sample container S into and out of the rear space 135 may be disposed. Since the mounting unit 200, the sampling unit, and the sampling unit lifting unit 600 disposed in the rear space 135 are the same as those of the embodiment described with reference to FIGS. 1 to 12, a detailed description thereof will be omitted.

The container transport unit 80 includes a container gripper 81 gripping the outer circumferential surface of the sample container S and a container driving unit 82 that moves the container gripper 81 to the front space 140 and the rear space 135. can include The container gripper 81 wraps around the outer circumferential surface of the sample container (S) and is closed or opened so that the sample container (S) can be gripped or the sample container (S) can be placed thereon. The container driving unit 82 of the container transport unit 80 may be implemented as a pneumatic or hydraulic cylinder that linearly reciprocates the container gripper 81 .

An operator may seat the sample container S in the front space 140 by opening the first opening and closing door. When the first opening and closing door is closed, the device 10 opens the second opening and closing door, and the container gripper 81 grips the sample container (S) and then moves forward to place the sample container (S) in the holder (210). can be settled.

When the sample container S is seated on the holder 210, sampling may be performed according to the method described in FIGS. 1 to 12 . When sampling is completed, the second opening and closing door is opened, the container gripper 81 grips the sample container (S) and then moves backward, and the second opening and closing door is closed again. Then, the operator can collect the sample container (S) by opening the first opening and closing door.

So far, the present invention has been described with reference to specific examples. However, those skilled in the art will clearly understand that various modified embodiments can be implemented within the technical scope of the present invention.

For example, in the above-described embodiment, it has been described that the sampling unit lifting unit 600 moves the cover 300 up and down, but the cover 300 does not move up and down, and the holder 210 or the holder unit 200 moves up and down. may be configured.

In addition, in the above-described embodiment, it has been described that the cap opening and closing part 400 moves up and down with respect to the cover 300, but the cap opening and closing part 400 does not move up and down, and the cover 300 may be configured to move up and down with respect to the cap opening and closing part 400. there is.

Also, in the above-described embodiment, the nozzle 510 has been described as moving forward and backward with respect to the cover 300, but the cover 300 may be configured to advance and retreat with respect to the nozzle 510.

Therefore, the embodiments disclosed above should be considered from a descriptive point of view rather than a limiting point of view. That is, the scope of the true technical idea of the present invention is shown in the claims, and all differences within the scope equivalent thereto should be construed as being included in the present invention.

10: chemical automatic sampling device 100: chamber
210: mounting portion 300: cover
400: cap opening and closing part 500: nozzle part
600: sampling unit elevating unit

Claims (12)

As a chemical automatic sampling device that automatically samples chemicals in a sample container,
a chamber containing an inner space;
a holder disposed in the inner space and in which a sample container is seated; and
In a state in which the upper part of the holder can be moved up and down in the inner space, and the top of the sample container seated on the holder is lowered and covered, the cap of the sample container can be opened and closed, and the cap is opened. Chemical automatic sampling device comprising a; sampling unit configured to be able to inject the chemical into the sample container. According to claim 1,
The sampling unit,
a cover that is movably disposed above the holding unit and has an open lower portion to cover an upper portion of the sample container seated on the holding unit;
a cap opening/closing unit disposed above the cover and opening and closing the cap of the sample container located in the inner space of the cover through the upper surface through hole of the cover; and
A nozzle unit for injecting a chemical into a sample container in which the cap is open through a side through hole of the cover;
The chemical automatic sampling device configured to open the cap by the cap opening and closing part and inject the chemical by the nozzle part in a state in which the cover is lowered and the top of the sample container is covered by the cover. According to claim 2,
the cover,
Chemical automatic sampling device that is spaced apart from the holder to form a space for the sample container to be seated on the holder, and to cover the upper portion of the sample container by descending after the sample container is seated. According to claim 2,
the cover,
and a cover ring which contacts the sample container when the cover descends and seals a space between the sample container and the cover. According to claim 2,
The cover, the cap opening and closing part, and the nozzle part integrally rise and fall. According to claim 2,
The cap opening and closing part,
a cap gripper disposed in the inner space of the cover to grip the cap of the sample container;
a shaft connected to the cap gripper through a top through hole of the cover; and
Automatic chemical sampling device comprising a; rotation driving member for rotating the shaft. According to claim 6,
The cap opening/closing unit further includes an opening/closing unit lifting unit for lifting the cap opening/closing unit with respect to the cover,
The cap gripper,
Opening the cap of the sample container after the cover is lowered by the opening/closing part lifting part in a state where the top of the sample container is covered by the cover,
A chemical automatic sampling device that rises by the opening/closing part lifting part while holding the cap of the sample container. According to claim 2,
The nozzle part,
a nozzle including at least one chemical line through which chemical flows and a discharge port, the nozzle extending into the inner space of the cover through the side through hole and discharging the chemical from the inner space of the cover through the outlet; and
A chemical automatic sampling device comprising: a nozzle advancing and retracting unit for advancing and retracting the nozzle in a horizontal direction with respect to the inlet of the sample container. According to claim 8,
the cover,
The automatic chemical sampling device further comprising a nozzle ring installed in the side through hole and contacting the nozzle to seal a space between the sample container and the cover. According to claim 9,
the cover,
and a drain port formed at a lower portion of the side through hole to collect the remaining liquid flowing out through the outlet. According to claim 10,
The outlet is
Located above the inlet of the sample container as the nozzle advances in a state where the cap of the sample container is open,
Chemical automatic sampling device positioned above the drain port as the nozzle retracts when the chemical is filled in the sample container. According to claim 1,
It further includes; a mounting unit including the mounting unit and the clamp advance and retreat unit;
The holding part,
a fixing clamp supporting one side of the sample container; and
and a movable clamp that advances by the clamp advance and retreat part when the sample container is seated and fixes the sample container together with the fixing clamp.

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