KR20220040888A - Appratus for assembling and disassembling chemical sampling container cap - Google Patents

Abstract

Disclosed is a device for attaching and detaching a cap for a chemical sampling vessel. The device for attaching and detaching a cap for a chemical sampling vessel according to an embodiment of the present invention is a device for attaching and detaching a cap of a sampling vessel for chemical sampling, comprising: a case in which an opening is formed; a transfer unit coupled to and supported by the case and movably provided; a detachable unit coupled to the transfer unit and transferred, and holding the cap of the sampling vessel through the opening of the case to attach and detach the cap; and a control unit for controlling the transfer unit and the detachable unit.

Description

Chemical sampling container cap detachment device {APPRATUS FOR ASSEMBLING AND DISASSEMBLING CHEMICAL SAMPLING CONTAINER CAP}

The present invention relates to a chemical sampling vessel cap detachment device, and more particularly, to a chemical sampling vessel cap detachment device capable of accurately attaching and detaching the cap.

In general, various facilities for transporting, storing, managing, and processing chemicals such as pipes for transporting chemicals and storage tanks for storing chemicals are used in places where various chemicals are used, such as semiconductor plants or chemical plants. is provided. In these places where chemicals are used, in order to manage chemicals in a usable state, periodic sampling of chemicals and inspection of sampled chemicals are performed from each facility or pipe that houses chemicals.

However, since the chemical contains a substance harmful to the human body, an apparatus for automatically sampling the chemical has been developed in recent years (eg, Patent Document 1). Such a chemical sampling system transports the sampling vessel from the outside to the inside of the chamber, removes the cap coupled to the upper part of the sampling vessel, supplies the chemical to the sampling vessel, and then connects the cap to the sampling vessel again and transfers it to the outside of the chamber should be configured to

In addition, the chemical sampling system should be provided with a chemical sampling vessel cap detachment device capable of automatically and stably and accurately attaching and detaching the cap of the sampling vessel.

Korean Patent Laid-Open Publication No. 10-2004-0071853

Accordingly, it is an object of the present invention to provide a chemical sampling vessel cap detachment device capable of stably and accurately detaching a cap from a sampling vessel.

According to an aspect of the present invention, there is provided a device for detaching a cap of a sampling container for sampling of chemicals, comprising: a case having an opening; a transfer unit coupled to and supported by the case and movably provided; a detachable unit which is coupled to the transfer unit and transferred, and which holds the cap of the sampling container through an opening of the case to attach and detach the cap; And a chemical sampling container cap detachable device including a control unit for controlling the transfer unit and the detachable unit may be provided.

In addition, the transfer unit, a guide rail coupled to the case; a transfer block moving along the guide rail and to which the detachable unit is coupled; and a transfer power member for transmitting power to the transfer block.

In addition, the guide rails may be provided as a pair, the pair of guide rails may be disposed to be spaced apart from each other, and the transfer power member may be disposed between the pair of guide rails.

In addition, the transfer power member, a first motor for transmitting the rotational force; a speed reducer for reducing the rotational force of the first motor; a coupler connected to the speed reducer; a conversion unit connected to the coupler and converting a rotational motion according to the rotational force of the first motor into a linear motion; And it may include a connection unit for connecting the conversion unit and the transfer block.

In addition, the conversion unit may be provided with a screw shaft, a movable body moving along the screw shaft, and a ball screw having a ball in contact with the screw shaft.

In addition, the detachable unit, a transfer plate coupled to the transfer unit; a rotational power member coupled to the transfer plate; and a holding member coupled to the rotational power member and rotating to interlock with the rotation of the rotational power member to detach the cap of the sampling container.

And, the rotational power member, a second motor for transmitting the rotational force to the holding member; a speed reducer for reducing the rotational force of the second motor; and a coupler connected to the speed reducer.

In addition, the holding member includes an air cylinder for operating the holding member to detach the cap, the coupler may be connected to the reducer and the air cylinder.

The gripping member may include a plurality of grippers, and the air cylinder may move the plurality of grippers in a preset first direction and a second direction opposite to the first direction.

In addition, a coupling protrusion may be formed on the cap, and a coupling groove to which the coupling protrusion of the cap is coupled may be formed inside the gripper.

In addition, a rotary joint for preventing the wiring from being twisted when the rotating power member is rotated may be further included.

In addition, the control unit may control the transfer unit so that the transfer unit moves in an up-down direction as the holding member rotates.

Accordingly, in the embodiments of the present invention, since the detachable unit operates by gripping the cap, there is an effect of stably and accurately detaching the cap from the sampling container.

1 is a schematic perspective view of the inside of a chamber in which a cap removal device for a chemical sampling container according to an embodiment of the present invention is installed.
FIG. 2 is a partially cut-away perspective view showing the inside of the apparatus for attaching and detaching a cap for a chemical sampling container according to an embodiment of the present invention.
FIG. 3 is a view viewed from the front with a part of the case removed from FIG. 2 .
FIG. 4 is a view viewed from the side with a part of the case removed from FIG. 2 .
5 is a view taken along the arrow A after the removal of the detachable unit in FIG.
6 and 7 are diagrams illustrating an operation process of the holding member in the chemical sampling vessel cap detachment apparatus according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. The terms or words used in the present specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventor may properly define the concept of the term in order to best describe his invention. Based on the principle that there is, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the configuration shown in the embodiments and drawings described in this specification is only the most preferred embodiment of the present invention and does not represent all of the technical idea of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

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 description. Accordingly, the size of each component does not fully reflect the actual size. When 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.

As used herein, the term 'coupled' or 'connected' refers to a case in which one member and another member are directly coupled or directly connected, as well as when one member is indirectly coupled to another member through a joint member, or indirectly. Including cases connected to

1 is a schematic perspective view of the inside of a chamber in which a chemical sampling vessel cap detachment device 10 according to an embodiment of the present invention is installed.

The chemical sampling system 1 is a system provided to sample a chemical from each facility or pipe accommodating the chemical.

The chemical sampling system 1 may include a chamber 40 , a chemical sampling vessel transport device 20 , a chemical sampling vessel cap detachment device 10 , and a chemical supply device 30 , wherein the chemical sampling vessel The transport device 20 , the chemical sampling vessel cap detachment device 10 , and the chemical supply device 30 are installed inside the chamber 40 .

The chamber 40 is provided so that sampling is made inside, and a first window (not shown) communicating with the internal space of the chamber 40 is formed on the outer surface of the chamber 40, and the first window (not shown) The sampling vessel 600 may be provided into the chamber 40 from the outside of the chamber 40 through the.

The chamber 40 includes an opening/closing door (not shown) for opening and closing a first window (not shown). In this case, the opening/closing door (not shown) may be configured to open and close the first window (not shown) in a sliding or swinging manner, and according to an embodiment, the opening/closing door (not shown) may be configured to operate automatically or manually. can

In addition, a ventilation unit (not shown) may be installed in the chamber 40 to ventilate the air inside the chamber 40 .

The chemical sampling vessel transport device 20 is configured to hold the sampling vessel 600 , and holds the sampling vessel 600 provided from the outside of the chamber 40 to the inside of the chamber 40 to remove the chemical sampling vessel cap and detachment device 10 . move to a location close to

The chemical sampling vessel transport device 20 moves the sampling vessel 600 toward the chemical supply device 30 when the cap 700 of the sampling vessel 600 is opened by the chemical sampling vessel cap detachment device 10 .

The chemical sampling container transport device 20 may be provided to be moved while being controlled to an accurate position in the XY direction by a servo motor, pneumatic or hydraulic cylinder, or the like. However, the present invention is not limited thereto, and the chemical sampling container transport device 20 may be configured in more various ways.

The chemical sampling vessel cap removal device 10 is a device for attaching and detaching the cap 700 of the sampling vessel 600 for chemical sampling. The chemical sampling vessel transport device 20 allows the sampling vessel 600 to be attached to the chemical sampling vessel The cap 700 coupled to the sampling container 600 is removed when it is transported to a position close to the cap detachment device 10 , and when the chemical is supplied to the sampling container 600 by the chemical supply device 30 , the sampling container 600 . ), the removed cap 700 is coupled to the sampling vessel 600 .

In the present specification, a spiral male screw and a female screw are formed in each of the sampling container 600 and the cap 700 , and when the cap 700 is rotated, the cap 700 is separated from or coupled to the sampling container 600 . will be explained based on A detailed description thereof will be provided later.

The chemical supply device 30 supplies the chemical to the sampling vessel 600 transported by the chemical sampling vessel transport device 20 after the cap 700 is removed by the chemical sampling vessel cap removal device 10 .

The chemical supply device 30 may be provided in various ways, and for example, may include a nozzle 31 and a supply pipe 32 . However, the configuration of the chemical supply device 30 is not limited thereto.

FIG. 2 is a partially cut-away perspective view showing the inside of the device for attaching and detaching a cap for a chemical sampling container according to an embodiment of the present invention, FIG. 3 is a view viewed from the front with a part of the case removed in FIG. 2 , and FIG. 4 is In Figure 2, a portion of the case is removed and viewed from the side, Figure 5 is a view along the arrow A after removal of the detachable unit in Figure 4, Figures 6 and 7 are chemical sampling according to an embodiment of the present invention It is a view showing the operation process of the holding member in the container cap detachable device.

1 to 7 , the chemical sampling container cap detachment device 10 according to an embodiment of the present invention includes a case 100 , a transfer unit 200 , a detachable unit 300 , and a control unit (400).

The case 100 is located inside the chamber 40 . The transfer unit 200 and the detachable unit 300 are installed inside the case 100 . The control unit 400 is connected to the transfer unit 200 and the detachable unit 300, may be installed inside the case 100, or is installed outside the case 100, the transfer unit 200 and the detachable unit ( 300) may be configured to be connected. The case 100 has an opening 110 formed on one side, for example, on the lower side.

The case 100 is coupled to the chamber 40 at a position higher than the chemical sampling vessel transport device 20 (see FIG. 1 ). That is, when the sampling container 600 is located on the lower side of the case 100 by the chemical sampling container transport device 20 , the detachable unit 300 coupled to the transport unit 200 by the transport unit 200 is removed from the case. The cap 700 is separated from the sampling container 600 after moving downward through the opening 110 of 100 to grip the cap 700 of the sampling container 600 .

The case 100 may be formed in various shapes, for example, may be formed in a hexahedral shape as shown in FIGS. 1 and 2 . However, the shape of the case 100 is not limited thereto.

The transfer unit 200 is supported by being coupled to the case 100 . The transfer unit 200 is provided movably and is coupled to the detachable unit 300 to transfer the detachable unit 300 .

Referring to FIG. 5 , the transfer unit 200 includes a guide rail 210 , a transfer block 220 , and a transfer power member 230 .

The guide rail 210 is coupled to the case 100 and supported. When the case 100 is formed in a hexahedral shape, the guide rail 210 may be coupled to the rear surface of the case 100 . The guide rail 210 may be provided in various forms, and may be, for example, an LM guide rail.

The guide rails 210 may be provided as a pair, and in this case, the pair of guide rails 210a and 210b are arranged to be spaced apart from each other at a preset interval.

The transfer block 220 moves along the guide rail 210 , and the transfer plate 310 of the detachable unit 300 is coupled to the transfer block 220 . That is, when the transfer block 220 moves along the guide rail 210 , the detachable unit 300 coupled to the transfer block 220 also moves together with the transfer block 220 .

The transfer block 220 may be provided to move in a straight line along the guide rail 210 . In addition, one or more transfer blocks 220 may be provided. When the guide rails 210 are provided as a pair, a plurality of transfer blocks 220 are provided and coupled to each of the pair of guide rails 210a and 210b.

The transfer power member 230 transmits power to the transfer block 220 . When the guide rails 210 are provided as a pair, the transfer power member 230 is disposed between the pair of guide rails 210a and 210b.

The transfer power member 230 may include a first motor 231 , a reduction gear 232 , a coupler 233 , a converter 234 , and a connection part 235 .

The first motor 231 transmits the rotational force to the converter 234 . As will be described later, when the conversion unit 234 is provided with the ball screw 239 , the first motor 231 transmits a rotational force to the screw shaft 237 .

The reducer 232 reduces the rotational force of the first motor 231 . In the process of attaching and detaching the cap 700 of the sampling container 600 , it is necessary to control a fine movement, so the reducer 232 reduces the rotational force of the first motor 231 .

The coupler 233 has one side connected to the reducer 232 and the other side connected to the conversion unit 234 .

The conversion unit 234 is connected to the coupler 233 and converts a rotational motion according to the rotational force of the first motor 231 into a linear motion. The conversion unit 234 may be various, for example, a screw shaft 237 , a movable body 238 moving along the screw shaft 237 , and a ball (not shown) in contact with the screw shaft 237 . It may be provided with a ball screw 239 provided.

After the rotational force of the first motor 231 is decelerated by the reducer 232 and then transmitted to the screw shaft 237 through the coupler 233 and the screw shaft 237 rotates, the ball in contact with the screw shaft 237 (not shown) rotates along the circumference of the screw shaft 237 , and accordingly, the movable body 238 moves linearly along the screw shaft 237 , and the rotational motion of the first motor 231 is converted into a linear motion. .

The connection unit 235 connects the conversion unit 234 and the transfer block 220 . When the conversion unit 234 is provided as a ball screw 239 , one side of the connection unit 235 is coupled to the movable body 238 of the ball screw 239 , and the other side is coupled to the transfer block 220 .

Here, when the first motor 231 rotates, the rotational motion of the first motor 231 is converted into a linear motion by the conversion unit 234, for example, the ball screw 239, and the moving body ( 238 moves linearly along the screw shaft 237 , and accordingly, the connection part 235 coupled to the movable body 238 also linearly moves, and the transfer block 220 coupled to the connection part 235 also linearly moves.

2 and 3 together, the detachable unit 300 is coupled to the transfer unit 200 and transferred, and the cap 700 of the sampling container 600 is gripped through the opening 110 of the case 100 . to detach the cap 700 .

The detachable unit 300 may include a transfer plate 310 , a rotational power member 320 , and a gripping member 330 .

Referring to FIG. 4 , the transfer plate 310 is coupled to the transfer block 220 of the transfer unit 200 . Accordingly, when the transfer block 220 is moved in a straight line, the transfer plate 310 also moves in a straight line.

The rotational power member 320 is coupled to the transfer plate 310 and transmits the rotational force to the gripping member 330 . The rotational power member 320 may include a second motor 321 , a reduction gear 322 , and a coupler 323 .

The second motor 321 transmits the rotational force to the holding member 330 . That is, when the gripping member 330 grips the cap 700 of the sampling container 600 , the second motor 321 rotates, and the gripping member 330 receiving the rotational force from the second motor 321 also rotates. to remove the cap 700 of the sampling vessel 600 from the sampling vessel 600 .

The reducer 322 reduces the rotational force of the second motor 321 . Since the process of attaching and detaching the cap 700 of the sampling container 600 requires controlling a fine movement, the reduction of the rotational force of the second motor 321 by the reducer 322 is coupled to the first motor 231 described above. It is common with the speed reducer 232 .

The coupler 323 has one side connected to the reduction gear 322 and the other side directly or indirectly connected to the holding member 330 . Here, when the air cylinder 340 for operating the holding member 330 is provided, one side of the coupler 323 is connected to the reducer 322 and the other side is connected to the air cylinder 340 . 6 and 7 , the air cylinder 340 is coupled to the gripping member 330 to operate the gripping member 330 so that the gripping member 330 grips the cap 700 of the sampling container 600 . .

The gripping member 330 is coupled to the rotational power member 320 , and is provided to rotate to interlock with the rotation of the rotational power member 320 to detach the cap 700 of the sampling container 600 . That is, when the gripping member 330 grips the cap 700 of the sampling container 600 , the rotational power member 320 rotates and the gripping member 330 also rotates, and the cap 700 gripped by the gripping member 330 . The cap 700 is separated from the sampling vessel 600 while also rotating.

2, 6 and 7 , the holding member 330 includes a plurality of grippers 331 . The air cylinder 340 is connected to the gripper 331 and moves the plurality of grippers 331 in a preset first direction, for example, in a first direction in which the plurality of grippers 331 approach each other as shown in FIG. 6 . It moves, and also moves in a second direction opposite to the first direction, for example, in a second direction in which the plurality of grippers 331 move away as shown in FIG. 7 .

That is, when the gripping member 330 grips the cap 700, the plurality of grippers 331 move in a direction closer to each other as in FIG. 6 by the operation of the air cylinder 340, thereby As shown, the gripper 331 of the gripping member 330 may grip the cap 700 .

In order to prevent slippage between the gripper 331 and the cap 700 when the gripper 330 rotates after the gripper 331 of the gripper 330 grips the cap 700, the coupling protrusion is provided on the cap 700. (710, see FIG. 1) is formed, and a coupling groove 335 (refer to FIGS. 6 and 7) may be formed inside the gripper 331. In addition, the coupling protrusion 710 formed on the cap 700 is coupled to the coupling groove 335 formed on the gripper 331 to prevent slipping.

The control unit 400 is connected to the transfer unit 200 and the detachable unit 300 to control the transfer unit 200 and the detachable unit 300 . The control unit 400 controls the transfer unit 200 to move the transfer unit 200 in the vertical direction as the holding member 330 of the detachable unit 300 rotates. That is, since male and female spiral threads are formed in the sampling container 600 and the cap 700, respectively, when the gripping member 330 grips the cap 700 and then rotates, the cap 700 rotates to remove the screw threads. Accordingly, it moves to the upper side of the sampling vessel 600 .

Therefore, it is necessary to control the holding member 330 holding the cap 700 to rise together with the rise of the cap 700 . That is, the control unit 400 controls the rotation of the gripping member 330 of the detachable unit 300 and at the same time the gripping member 330 moves up together with the cap 700. The transfer block of the transfer unit 200 The movement of 220 is also controlled.

The rotary joint 500 is provided to prevent the wiring from being twisted when the rotational power member 320 rotates. Since the operation method of the rotary joint 500 is in common with a generally known part, a detailed description thereof will be omitted.

Hereinafter, the operation and effect of the chemical sampling container cap detachment device 10 according to an embodiment of the present invention will be described.

When the sampling container 600 is transported by the chemical sampling container transport device 20 and located at the lower side of the case 100 , the first motor 231 of the transport unit 200 operates, and the After the rotational force is decelerated by the speed reducer 232 and transmitted to the screw shaft 237 through the coupler 233 and the screw shaft 237 rotates, the ball (not shown) in contact with the screw shaft 237 is the screw shaft The rotational motion of the first motor 231 is converted into a linear motion while rotating along the periphery of 237 , and accordingly, the movable body 238 moves linearly along the screw shaft 237 . In addition, the connecting part 235 coupled to the movable body 238 moves linearly, and the transfer block 220 coupled to the connecting part 235 also moves linearly.

Here, since the transfer plate 310 of the detachable unit 300 is coupled to the transfer block 220 of the transfer unit 200, the transfer plate 310 of the detachable unit 300 when the transfer block 220 is moved in a straight line is also included. Moving in a straight line, the holding member 330 of the detachable unit 300 moves to the cap 700 of the sampling container 600 through the opening 110 of the case 100 .

When the holding member 330 moves to the cap 700 of the sampling vessel 600 , the air cylinder 340 coupled to the holding member 330 operates and the gripper 331 of the holding member 330 moves to move the sampling vessel. Gripping the cap 700 of 600 .

When the gripper 331 of the holding member 330 grips the cap 700 of the sampling container 600 , the second motor 321 of the detachable unit 300 rotates and receives the rotational force from the second motor 321 . The gripper 331 of the holding member 330 also rotates to remove the cap 700 of the sampling container 600 from the sampling container 600 .

On the other hand, when the chemical is supplied to the sampling container 600 by the chemical supply device 30 , the gripper 331 of the gripping member 330 is moved in the opposite direction when the cap 700 is removed from the sampling container 600 . The cap 700 held by the gripper 331 is rotated and coupled to the sampling container 600 .

In the above, although the present invention has been described with reference to limited embodiments and drawings, the present invention is not limited thereto and will be described below with the technical idea of the present invention by those of ordinary skill in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims.

10: chemical sampling container cap detachment device
100: case 110: opening
200: transfer unit 210: guide rail
220: transfer block 230: transfer power member
231: first motor 232: reducer
233: coupler 234: conversion unit
235: connection part 237: screw shaft
238: movable body 239: ball screw
300: detachable unit 310: transfer plate
320: rotating power member 321: second motor
322: reducer 323: coupler
330: gripping member 331: gripper
335: coupling groove 340: air cylinder
400: control unit 500: rotary joint
600: sampling vessel 700: cap
710: coupling protrusion

Claims (12)

A device for attaching and detaching a cap of a sampling container for chemical sampling, comprising:
a case in which an opening is formed;
a transfer unit coupled to and supported by the case and provided to be movable;
a detachable unit which is coupled to the transfer unit and transferred, and which holds the cap of the sampling container through an opening of the case to attach and detach the cap; and
Chemical sampling container cap detachable device including a control unit for controlling the transfer unit and the detachable unit. According to claim 1,
The transfer unit is
a guide rail coupled to the case;
a transfer block moving along the guide rail and to which the detachable unit is coupled; and
Chemical sampling container cap detachment device, characterized in that it comprises a transfer power member for transmitting power to the transfer block. 3. The method of claim 2,
The guide rails are provided as a pair, and the pair of guide rails are arranged to be spaced apart from each other,
The transfer power member is a chemical sampling vessel cap detachment device, characterized in that it is disposed between the pair of guide rails. 4. The method of claim 3,
The transfer power member,
a first motor that transmits a rotational force;
a speed reducer for reducing the rotational force of the first motor;
a coupler connected to the speed reducer;
a conversion unit connected to the coupler and converting a rotational motion according to the rotational force of the first motor into a linear motion; and
Chemical sampling container cap detachment device, characterized in that it comprises a connecting part for connecting the conversion unit and the transfer block. 5. The method of claim 4,
The conversion unit is a chemical sampling container cap detachment device, characterized in that provided with a screw shaft, a movable body moving along the screw shaft, and a ball screw having a ball in contact with the screw shaft. According to claim 1,
The detachable unit,
a transfer plate coupled to the transfer unit;
a rotational power member coupled to the transfer plate; and
and a holding member coupled to the rotational power member and rotating to interlock with the rotation of the rotational power member to attach and detach the cap of the sampling container. 7. The method of claim 6,
The rotational power member,
a second motor for transmitting a rotational force to the holding member;
a speed reducer for reducing the rotational force of the second motor; and
Chemical sampling container cap detachment device, characterized in that it comprises a coupler connected to the reducer. 8. The method of claim 7,
and an air cylinder for operating the holding member so that the holding member attaches and detaches the cap,
The coupler is a chemical sampling vessel cap detachment device, characterized in that connected to the reducer and the air cylinder. 9. The method of claim 8,
The holding member includes a plurality of grippers,
wherein the air cylinder moves the plurality of grippers in a preset first direction and a second direction opposite to the first direction. 10. The method of claim 9,
A coupling protrusion is formed on the cap,
A chemical sampling container cap detachment device, characterized in that a coupling groove to which the coupling protrusion of the cap is coupled is formed inside the gripper. 7. The method of claim 6,
Chemical sampling container cap detachment device, characterized in that it further includes a rotary joint for preventing the wiring from being twisted when the rotational power member rotates. 7. The method of claim 6,
The control unit, chemical sampling container cap detachment device, characterized in that for controlling the transfer unit to move the transfer unit in the vertical direction as the holding member rotates.

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