CN109422227B

CN109422227B - Automatic chemical supply device

Info

Publication number: CN109422227B
Application number: CN201710741316.XA
Authority: CN
Inventors: 尹炳春; 宋勇益; 金东炫; 金南荣
Original assignee: System Technology
Current assignee: System Technology
Priority date: 2017-08-25
Filing date: 2017-08-25
Publication date: 2020-09-11
Anticipated expiration: 2037-08-25
Also published as: CN109422227A

Abstract

The invention aims to provide an automatic chemical supply device, wherein a male connector and a female connector of the automatic chemical supply device are completely combined. The automatic chemical supply device of the present invention comprises: a placing part for placing a chemical hose, wherein the chemical hose is connected to a chemical tank, connects the chemical tank and a chemical storage tank, and supplies chemicals from one side to the other side; the conveying unit is composed of a first rack, a first rack driving part, a second rack and a second rack driving part, wherein the placing part is loaded on the upper part of the first rack and is connected with a chemical hose and a chemical storage tank, the chemical hose is conveyed to the front and back direction when the chemical hose is placed on the placing part, the placing part is conveyed to the front and back direction by the first rack driving part, the first rack is placed on the upper part of the second rack and is conveyed to the front and back direction, and the first rack and the placing part are conveyed to the front and back direction by the second rack driving part; and a control panel for controlling the driving of the first and second stage driving parts.

Description

Automatic chemical supply device

Technical Field

The present invention relates to an automatic chemical supply device, and more particularly, to an automatic chemical supply device in which a chemical supply hose is transported by constituting a transfer unit in multiple stages, and a male joint and a female joint are completely coupled to each other, thereby reducing the risk of injury to an operator.

Background

Companies that manufacture semiconductors, semiconductor devices, LCDs, and OLEDs, and all companies that use harmful chemicals, such as pharmaceutical companies and paint companies, use a wide variety of chemicals, and the way to safely supply such chemicals is also diversified.

Such chemicals are generally delivered from a chemical tank of a tank truck (tank) stopped outside a building to a chemical storage tank (chemical storage tank) installed inside the building, and then delivered from the chemical storage tank to a unit project process chamber.

The conventional method of delivering chemicals from the above-described tank truck to the chemical storage tank uses a method in which an operator manually connects a hose and a joint for supplying chemicals, which will be described in detail below.

The tank car is connected with a chemical supply hose and a nitrogen supply hose, the end parts of the chemical supply hose and the nitrogen supply hose are respectively connected with a Male joint (Male Connector) for chemicals and a Male joint for nitrogen, and each Male joint is provided with a cover (Cap) for closing the open end part.

The chemical tank is provided with a chemical Female Connector (Female Connector) and a nitrogen Female Connector, and a chemical male Connector and a nitrogen male Connector are inserted into the chemical Female Connector and the nitrogen Female Connector, respectively. The chemical female connector and the nitrogen female connector are also provided with caps (Cap) for closing the open ends thereof, respectively.

The operator pulls out the chemical hose and the nitrogen hose from the tank car, and removes the chemical male joint cap and the nitrogen male joint cap, the chemical female joint cap and the nitrogen female joint cap. Thereafter, the chemical male connector was connected to the chemical female connector, and the nitrogen male connector was connected to the nitrogen female connector.

As described above, in the state where the male connector and the female connector are coupled, nitrogen gas of a constant pressure is supplied from the nitrogen gas storage tank located in the building to the tank car through the nitrogen gas hose, and the chemical in the tank car is transferred to the chemical storage tank through the chemical hose due to the pressure of the nitrogen gas.

However, according to this conventional method, when an operator manually connects and separates the chemical and nitrogen gas joints and supplies nitrogen gas at a constant pressure, the chemical may leak out, and the operator may be exposed to the chemical.

As a prior art of the chemical supplying apparatus, Korean Utility model laid-open No. 20-2016-.

In the above prior art, a chemical intermediary means called ACQC Unit (Automatic Clean Quick Coupler Unit) is provided between the tank truck and the chemical storage tank. Here, the chemical storage tanks are typically located within the building, and the ACQC units mediate between the chemical tanks of the tanker trucks and the chemical storage tanks within the building.

According to the conventional ACQC unit, in a state that a male connector and a female connector of a chemical are connected and a male connector and a female connector of nitrogen are connected, nitrogen with a constant pressure is supplied to a chemical tank of a tank car through the ACQC unit, and the chemical is led out by using the pressure of the supplied nitrogen and stored in a chemical storage tank through a chemical hose.

At this time, since the operator manually connects/disconnects the chemical and nitrogen connectors, the work efficiency is reduced, and even if the automatic connection of the male connector and the female connector is selected, it is necessary to achieve the complete coupling and design a structure capable of preventing the leakage of the chemical.

And, when carrying chemicals and nitrogen gas, chemical hose and nitrogen gas hose connection tank car and chemical storage tank and nitrogen gas storage tank have the problem that can't set up chemical leak protection shield door. Moreover, even if the shield door is provided, the surrounding space where the hose and the joint are connected cannot be closed, and the hose and the joint are exposed outside. Therefore, there is a problem that external contaminants such as dust, rain, snow, etc. flow into the apparatus, and chemical fumes (Fume) generated in the apparatus are also directly discharged.

Prior art documents

Patent document

Korea Utility model laid-open No. 20-2016-

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide an automatic chemical supply device that can prevent leakage of chemicals by properly and completely coupling a male connector and a female connector.

Another object of the present invention is to provide an automatic chemical supply device that prevents interference between connectors when a male connector is inserted into a female connector.

Another object of the present invention is to provide an automatic chemical supply device, which can prevent the operator from suffering from diseases by positioning a placement part as close as possible to the operator when the operator places a hose on the placement part.

The automatic chemical supply device according to the present invention for achieving the above object includes:

a placing part for placing a chemical hose 500, which is connected to the chemical tank, connects the chemical tank and the chemical storage tank, and supplies chemicals from one side to the other side; a transfer unit 160 including a first stage 161, a first stage driving unit 162, a second stage 163, and a second stage driving unit 164, wherein the placement unit 150 is loaded on the upper portion of the first stage 161, the chemical hose 500 and the chemical tank are connected, the chemical hose 500 is transferred in a front-rear direction when the chemical hose 500 is placed on the placement unit 150, the placement unit 150 is transferred in the front-rear direction on the first stage 161 by the first stage driving unit 162, the first stage 161 is placed on the upper portion of the second stage 163, the chemical hose is transferred in the front-rear direction, and the first stage 161 and the placement unit 150 are transferred in the front-rear direction on the second stage 163 by the second stage driving unit 164; and a control panel for controlling the driving of the first stage driving part 162 and the second stage driving part 164.

The placing part 150 comprises a placing part 150-1 for placing the chemical hose 500 and a placing part 150-2 for placing the nitrogen hose 600; the first stage 161 is composed of a first chemical stage 161-1 having a chemical shelf 150-1 at the upper part thereof and a first nitrogen stage 161-2 having a nitrogen shelf 150-2 at the upper part thereof; the first stage driving unit 162 includes a first chemical driving unit 162-1 for conveying the chemical shelf unit in the front-rear direction and a first nitrogen driving unit 162-2 for conveying the nitrogen shelf unit 150-2 in the front-rear direction.

The first chemical stage 161-1 and the first nitrogen gas stage 161-2 are fixed to upper portions of both sides, and a middle stage 165 may be provided to be driven by the second stage driving part 164 and to be transported in the front-rear direction on the second stage 163.

A chemical male joint 510 may be connected to an end of the chemical hose 500, and a chemical female joint 210 may be provided on the chemical tank side; a male connector 610 for nitrogen is connected to an end of the nitrogen hose 600, and a female connector 220 for nitrogen is provided on the chemical storage tank side; the first chemical driving unit 162-1 drives the chemical shelf unit 150-1 to move forward by a predetermined distance, and the second stage driving unit 164 drives the first chemical stage 161-1 and the first nitrogen stage 161-2 to move forward as a unit in a state where the first nitrogen driving unit 162-2 drives the nitrogen shelf unit 150-2 to move forward, so that the chemical male connector 510 is connected to the chemical female connector 210, and the nitrogen male connector 610 is connected to the nitrogen female connector 220.

A chemical male joint 510 may be connected to an end of the chemical hose 500, and a chemical female joint 210 may be provided on the chemical tank side; a male connector 610 for nitrogen is connected to an end of the nitrogen hose 600, and a female connector 220 for nitrogen is provided on the chemical storage tank side; in a state where the second stage driving unit 164 drives the first chemical stage 161-1 and the first nitrogen gas stage 161-2 to be integrally transferred forward by a set distance, the first chemical driving unit 162-1 drives the chemical shelf unit 150-1 to transfer forward again, so that the chemical male adaptor 510 is connected to the chemical female adaptor 210, and the first nitrogen gas driving unit 162-2 drives the nitrogen gas shelf unit 150-2 to transfer forward, so that the nitrogen gas male adaptor 610 is connected to the nitrogen gas female adaptor 220.

The building wall 700 provided with the automatic chemical supply device is formed with an open part 701 penetrating the inside and outside of the building, and when the operator puts the chemical hose 500 on the placing part 150, the placing part 150 may be located in the inner space of the open part 701.

The second stage 163 may be provided at one end thereof to be inserted into the internal space of the open part 701.

The first stage 161 may be provided with one end inserted into the inner space of the opening 701.

The control unit may adjust the forward and backward moving speed of the placement unit 150 driven by the first stage driving unit 162.

When the chemical male connector 510 connected to the end of the chemical hose 500 is driven by the first stage driving part 162 and connected to the chemical female connector 210 located at the chemical storage tank side, the control part may control the speed of the first stage driving part 162 to be lower than the speed of the second stage driving part 164.

The control unit can adjust the forward and backward movement speed of the placement unit 150 driven by the second stage driving unit 164.

When the chemical male connector 510 connected to the end of the chemical hose 500 is driven by the second carriage driving part 164 and connected to the chemical female connector 210 located at the chemical storage tank side, the control part may control the speed of the second carriage driving part 164 to be lower than the speed of the first carriage driving part 162.

A chemical male joint 510 connected to an end of the chemical hose 500; a chemical female joint 210 and a chemical female joint cover 211 are provided on the chemical tank side, and the chemical female joint cover 211 is inserted into the insertion groove 210a of the chemical female joint 210; a chemical female joint cover removing unit 190-1 may be provided to combine or separate the chemical female joint cover 211 from the chemical female joint 210 in a state where the chemical female joint cover 211 is integrally combined.

The above-described female tab cover removing unit 190-1 for chemicals may include: the chemical driving part 195-1 moves the chemical cover 211 in the vertical direction; the chemical front and rear driving part 193-1 moves the chemical female joint cover 211 in the front and rear direction to be inserted into the insertion groove 210a or to be pulled out from the insertion groove 210a when the chemical female joint cover 211 is positioned at the rear of the chemical female joint 210 insertion groove 210 a.

The chemical mother tab cover removing unit 190-1 includes a chemical cover fixing part 191-1 for fixing the chemical mother tab cover 211, the chemical cover fixing part 191-1 is located on a chemical front and rear guide 192-1 having a length in the front and rear direction, the chemical front and rear driving part 193-1 drives the chemical cover fixing part 191-1 to move in the front and rear direction on the chemical front and rear guide 192-1, and the chemical up and down driving part 195-1 drives the chemical cover fixing part 191-1, the chemical front and rear guide 192-1, and the chemical front and rear driving part 193-1 to move in the up and down direction on the chemical upper and lower guide 194-1 having a length in the up and down direction.

A chemical male joint 510 connected to an end of the chemical hose 500; a chemical female joint 210 is arranged at the side of the chemical storage tank and connected with a chemical male joint 510; a fixing unit 180 may be provided to prevent the chemical male connector 510 from being separated from the chemical female connector in a state where the chemical male connector 510 is coupled to the chemical female connector 210.

The fixing unit 180 may include stoppers 181 and 183 which are stopped by a stepped portion 510a formed on the outer periphery of the chemical male adaptor 510 to prevent the chemical male adaptor 510 from being separated from the chemical female adaptor 210.

The stoppers 181 and 183 may be formed by a first stopper 181 and a second stopper 183, wherein the first stopper driving portion 182 drives the first stopper 181 to move up and down, and the second stopper driving portion 184 drives the second stopper 183 to move horizontally.

A chemical female joint cover 211 connected to the chemical female joint 210 to seal the end thereof when the chemical is not transferred; when the chemical female joint cover 211 seals the end of the chemical female joint 210, the stoppers 181 and 183 may be stopped by a step 211a formed on the outer periphery of the chemical female joint cover 211.

The control unit may control the connection of the chemical male adaptor 510 and the chemical female adaptor 210 by driving one of the first stage driving unit 162 and the second stage driving unit 164 to move the chemical male adaptor 510 forward while driving the other to move the chemical male adaptor 510 forward such that the front end of the chemical male adaptor 510 is positioned in front of the front ends of the first stage 161 and the second stage 163.

According to the automatic chemical supply device of the present invention, the multi-stage transfer unit can be constructed to linearly move the hose for transferring the chemicals, so that the male connector and the female connector are completely coupled, thereby preventing the chemicals from leaking.

And the forward and backward movement speed of the placing part driven by the rack driving part is adjusted, when the male joint is inserted into the female joint, impact can be buffered when impact protrusion occurs between the joints, and when the centers of the male joint and the female joint are inconsistent, the male joint and the female joint can be completely combined.

Moreover, the placing parts for placing the chemical hose and the nitrogen hose are positioned in the inner space of the wall body, so that the operation convenience is improved, and the muscle-bone diseases of operators can be prevented.

A female joint cover removing unit is arranged to combine or separate the female joint cover and the female joint, and the female joint cover seals the end part of the female joint on the chemical storage tank side; the above-mentioned female joint cover removing unit is integrated with the cover, and the structure of the female joint cover removing unit is simplified without a structure for removing the female joint cover.

In a state where the female tab cover removing unit is integrated with the cover, the female tab cover is sealed by being inserted into the female tab, and the female tab cover are completely coupled.

Drawings

Fig. 1 is an overall perspective view illustrating an external appearance of an automatic chemical supplying apparatus according to the present invention.

Fig. 2 is a view illustrating a state where the automatic chemical supplying apparatus of the present invention opens the upper door and the lower door.

FIG. 3 is a view showing a state where a chemical hose and a nitrogen hose are introduced into an inlet of an automatic chemical supply apparatus according to the present invention.

FIG. 4 is a sectional view showing the chemical hose of the automatic chemical supplying apparatus of the present invention in a state where it penetrates the shield door introducing part and is placed on the placing part.

FIG. 5 is a view illustrating a state where the male connector of the transferring unit is not moved toward the female connector of the present invention.

Fig. 6 is a view illustrating a state in which the first stage driving part drives the male connector to move in the direction of the female connector in the state of fig. 5.

Fig. 7 is a view illustrating a state in which the second stage driving part drives the male connector to move in the direction of the female connector in the state of fig. 5.

Fig. 8 is a view illustrating a state in which the first stage driving part drives the male connector to move in conjunction with the female connector in the state of fig. 7.

Fig. 9 is a state diagram illustrating the placement section disposed inside the conveyor housing.

Fig. 10 is a view illustrating a state where the shelf is provided in the inner space of the wall.

Fig. 11 is a view showing a state where the chemical mother tab cover is moved upward and then separated from the chemical mother tab cover.

Fig. 12 and 13 are views illustrating a state in which the chemical female joint cover is positioned behind the insertion groove of the chemical female joint.

Fig. 14 and 15 are views illustrating a state where the chemical female joint cover is inserted into the chemical female joint insertion groove.

Description of the symbols

100 automatic chemical supply device 105 conveyor housing

120: frame 130: screen door

131 lower door 132 upper door

132a perspective window 134 emergency stop switch

135 introduction part 135-1 introduction part for chemical

135-2 introduction part for nitrogen gas 136-

137-2 lower rotation member 138-1,138-2 upper rotation member

150: a placing part 150-1: a placing part for chemicals

150-2 nitrogen gas holder 160 transport unit

161 first stage 161-1 first chemical stage

161-2 first nitrogen gas stage 162 first stage driving part

162-1 driver for first chemical 162-2 driver for first nitrogen gas

163 second stage 164 second stage driving part

165 middle rack 170 side door

175 control panel 180 fixing unit

181 the first stopper 182 the first stopper driving part

183 second stopper 184 second stopper driving part

190 female joint cap removing unit 191-1 chemical cap fixing part

192-1 front and rear guide rails for chemicals 193-1 front and rear driving part for chemicals

194-1 upper and lower guide rails for chemicals 195-1 upper and lower drive parts for chemicals

200 case body 210 female joint for chemicals

211, chemical female joint cover 220, nitrogen female joint

500 chemical hose 510 chemical male joint

600: 700: wall body of nitrogen hose

701 open part

Detailed Description

Hereinafter, the automatic chemical supply device according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 4, the automatic chemical supply device 100 according to the present invention is a device for automatically connecting a chemical male connector 510 and a nitrogen male connector 610 to a chemical female connector 210 (fig. 5) and a nitrogen female connector (not shown) provided in a housing body 200, and the chemical male connector 510 and the nitrogen male connector 610 are connected to ends of a chemical hose 500 and a nitrogen hose 600 on a chemical tank (not shown) of a tank car (tank road).

In the case of the downward direction, the direction in which the tank car and the operator are located is the rear direction with reference to the shield door 130, and the direction in which the housing main body 200 is located is the front direction.

The automatic chemical supply device 100 includes: a conveying part housing 105, a frame 120, a shield door 130, a rest part 150, a conveying unit 160, a side door 170, a control panel 175, a fixing unit 180, and a female joint cover removing unit 190.

A chemical female joint 210 and a nitrogen female joint (not shown) are provided on the side of the housing main body 200 facing the transport unit housing 105.

The housing body 200 is provided with a structure for distributing chemicals supplied from the chemical hose 500 to a chemical storage tank (not shown) or a cleaning chemical female connector 210 and a nitrogen gas female connector.

The shelf part 150 may be doubled, and each of the chemical hose 500 and the nitrogen hose 600 is placed.

The transfer unit 160 is located in the delivery unit housing 105, and controls the chemical hose 500 and the nitrogen gas hose 600 to be transferred toward the chemical female connector 210 and the nitrogen gas female connector in a state where the chemical hose and the nitrogen gas hose are placed on the placement part 150. The above-described transfer unit 160 may be double, each transferring the chemical hose 500 and the nitrogen hose 600.

One end of the transfer unit 160 is inserted into an opening 701 formed in a wall. The wall 700 is a wall constituting a building, and fig. 1 shows a part of the building wall 700. The opening part 701 is formed in a hole shape penetrating the inside and outside of the building.

A frame 120 is inserted into the opening part 701, and the shield door 130 and the side door 170 are connected to the frame 120.

The frame 120 has a quadrangular cross section and surrounds the periphery of the transfer unit 160, and one end of the transfer unit 160 is inserted into the opening 701.

The side door 170 is connected to one side of the frame 120 to be opened and closed, and has a control panel 180 for controlling the chemical automatic supply apparatus 100.

The shield door 130 is installed at a side of the side door 170, and can rotate to open and close an open portion of the frame 120 (i.e., an open portion 701 of the wall 700). The shield door 130 is divided into a lower door 131 and an upper door 132.

The lower door 131 (first door) is rotatably provided around a lower end portion, and the upper door 132 (second door) is rotatably provided around an upper end portion. Therefore, both the lower door 131 and the upper door 132 may be opened, or one of the lower door 131 and the upper door 132 may be selected to be opened, thereby improving convenience of the operator.

An introduction part 135 is provided between the lower door 131 and the upper door 132, and a chemical hose 500 and a nitrogen hose 600 are introduced. When the lower door 131 and the upper door 132 are closed, the introduction part 135 guides the chemical hose 500 and the nitrogen hose 600 to pass between the upper end of the lower door 131 and the lower end of the lower door 132, thereby shielding the inflow of foreign matters into the transfer part housing 105 during the transfer of chemicals and preventing the leakage of chemicals or fumes (fumes) in the transfer part housing 105.

The introduction part 135 may be composed of a chemical introduction part 135-1 through which the chemical hose 500 passes and a nitrogen introduction part 135-2 through which the nitrogen hose 600 passes.

The chemical introducing part 135-1 may be composed of an opening 136-1 and a plurality of rotary members 137-1, 138-1, and the opening 136-1 may be disposed around the opening 136-1, up, down, left, and right through the chemical hose 500 and the rotary members 137-1, 138-1.

The opening 136-1 is formed between the upper end of the lower door 131 and the lower end of the upper door 132, and in the present embodiment, may have a shape of cutting a region of the upper end of the lower door 131. However, the shape is not limited to this, and the lower end portion of the upper door 132 may be cut. Also, it may be arranged that the upper door 132 and both sides of the lower door 131 may form a cut-off region through which the chemical hose may pass and be adjacent to the cut-off region. In the present embodiment, the cut region is a square shape, but the present invention is not limited thereto, and various shapes can be provided.

The rotating members 137-1 and 138-1 are rotatably disposed about a central axis (not shown) thereof to prevent friction or scratches between the chemical hose 500 and the surface of the hose 500 when the chemical hose 500 is moved.

The rotary members 137-1 and 138-1 may be composed of 3 lower rotary members 137-1 (first rotary members) and 3 upper rotary members 138-1 (second rotary members). The lower rotary member is connected to the left, right and lower portions of the upper cut region of the lower door, and the upper rotary member is connected to the lower end of the upper door 132.

The lower rotating member 137-1 and the upper rotating member 138-1 may be formed of rollers or bearings. The center of the lower rotating member 137-1 is connected to the lower door, and the center of the upper rotating member 138-1 is connected to the upper door 132. Accordingly, the lower rotating member 137-1 and the upper rotating member 138-1 may each rotate centering on the central axis.

In the present embodiment, a configuration including 3 lower rotary members 137-1 and 1 upper rotary member 138-1 is illustrated, but the present invention is not limited thereto, and a plurality of rotary members may be provided in the upper door 132.

The nitrogen gas inlet 135-2 may have the same composition as the chemical inlet 135-1, and may include: opening 136-2 through which nitrogen gas hose 600 can pass; and a plurality of rotating members 137-2, 138-2 positioned above, below, on the left, and on the right of the opening 136-2. Therefore, the nitrogen hose 600 is guided by the rotary members 137-2, 138-2, and the rotary members 137-2, 138-2 are rotated in the opening 136-2 of the nitrogen inlet 135-2, thereby preventing damage to the hose.

The upper door 132 is provided with a transparent window 132a for checking the state of the inside of the conveying section housing 105. Therefore, the operation state and the internal state of the conveyance unit casing 105 can be visually checked even outside the building wall 700.

The lower door 131 is provided with an emergency stop button 134, so that the operator can emergency-stop the driving of the chemical automatic supply apparatus 100 in an abnormal situation. When an emergency abnormal situation at the side of the tank car or an abnormal situation inside the automatic chemical supply apparatus 100 is detected outside the building, the operator can press the emergency stop button 134 to minimize the occurrence of an accident. In this case, a sensor (not shown) may be provided to sense the leakage of the chemical in the housing body 200 or the conveying section housing 105, and an alarm tool (not shown) may be provided to receive a signal from the sensor, so that when the chemical leaks, an operator may recognize the signal from the alarm tool and operate the emergency stop decoration 134.

On the other hand, the shield door 130 may further include a door opening sensor (not shown). When the shield door 130 is opened, the signal of the door opening sensor is transmitted to the control part, and the control part sets an interlock (interlock) to stop the driving of the chemical automatic supply device 100, thereby ensuring the safety of the operator.

The structure of the transfer unit 160 will be described in detail with reference to fig. 5 to 8.

The transfer unit 160 of the present invention is constituted by: a first stage 161 which is loaded on the upper part of the placing part 150; a first stage driving unit 162 for transferring the placement unit 150 in the front-rear direction on the first stage 161; a second stage 163 supporting the first stage 161 and being transported in the front-rear direction in a loaded state; the second stage driving unit 164 transports the first stage 161 and the placing unit 150 in the front-rear direction on the second stage 163. The first stage driving unit 162 and the second stage driving unit 164 are driven under the control of the control unit.

The placement unit 150 has the following structure: a chemical placing part 150-1 for placing the chemical hose 500 and the chemical male joint 510; a nitrogen gas placing part 150-2 for placing a nitrogen gas hose 600 and a nitrogen gas male connector 610 for supplying nitrogen gas to the chemical tank. In FIGS. 5 to 8, only the chemical male connector 510 and the nitrogen male connector 610 are shown to be rested on the rest parts 150-1,150-2, but the

hoses

500, 600 are connected to the male connectors 510,610 and then rested on the rest parts 150-1, 150-2.

The first stage 161 is configured as follows: a first chemical rack 161-1 disposed above the chemical placement unit 150-1; the first nitrogen gas stage 161-2 is provided above the nitrogen gas shelf 150-2.

The first chemical stage 161-1 and the first nitrogen gas stage 161-2 have a longitudinal length, and have a structure that guides the chemical-loaded chemical placement part 150-1 and the nitrogen gas placement part 150-2 when they move in the longitudinal direction.

The first stage driving unit 162 includes a first chemical driving unit 162-1 for conveying the chemical shelf unit 150-1 in the front-rear direction and a first nitrogen driving unit 162-2 for conveying the nitrogen gas shelf unit 150-2 in the front-rear direction.

The first chemical driving part 162-1 and the first nitrogen driving part 162-2 may be formed of a cylinder (Air cylinder), and a connection part for supplying or discharging Air (Air) is provided at a side portion thereof. The driving portions 162-1 and 162-2 may be formed of a motor and a linear screw instead of the cylinder.

The second stage 163 is provided at a fixed position with a longer length in the front-rear direction than the first stage 161. The rear end of the second frame 163 is located in the open part 701 of the wall 700, and the front end is located adjacent to the female joint.

An intermediate stage 165 is provided between the first stage 161 and the second stage 163. The middle stage 165 has a rectangular plate shape, and the upper portions of both side ends thereof are fixed with a first chemical stage 161-1 and a first nitrogen stage 161-2.

The middle stage 165 is moved forward and backward by the second stage driving part 164 in a state of being loaded on the upper part of the second stage 163, and a guide groove structure is formed between the bottom surface of the middle stage 165 and the upper surface of the second stage 163 to guide the forward and backward movement.

The second stage driving unit 164 may be composed of a motor for providing a driving force, and a linear screw rotatably driven by the motor and connected to the middle stage 165. When the motor is driven, the linear screw is rotated, and the intermediate stage 165 moves in the front-rear direction as the linear screw is rotated in the clockwise/counterclockwise direction.

If the 2-stage rack is not provided, and the single linear transfer is performed only by 1 stage rack, the

male connectors

510 and 610 and the

female connectors

210 and 220 are connected, and at this time, the

male connectors

510 and 610 are not completely inserted into the

female connectors

210 and 220, or the

male connectors

510 and 610 are completely inserted into the

female connectors

210 and 220, the structure of the housing body 200 in which the transfer unit 160 and the

female connectors

210 and 220 are provided becomes complicated, and the degree of freedom in design is reduced.

Further, the

male connectors

510 and 610 are not aligned with the

female connectors

210 and 220 in consideration of the tolerance of the fittings constituting the transfer unit 160, the assembly tolerance, and the like, since the rest portions 150-1 and 150-2 on which the hoses are placed are distant from the position. At this time, the male connectors 510,610 are inserted into the female connectors 210,220 only by one linear transfer, and the centers of the male connectors 510,610 and the bodies of the female connectors 210,220 collide with each other due to the misalignment, and the collision and incomplete coupling of the male connectors and the female connectors result in a problem that the machine sealing cannot be maintained.

As described above, when the transfer unit 160 is configured as the 2-stage of the first stage 161 and the second stage 163, the male connector is moved to the position of the female connector for the first time, and the male connector and the female connector are completely coupled when the male connector and the female connector are moved again for the second time, so that the chemical leakage can be prevented.

Further, even if the second stage 163 is located at a position slightly distant from the conveyor main body 200, it is possible to sufficiently embody the complete coupling of the chemical male joint 510 and the chemical female joint 210, and the degree of freedom of design is increased without considering whether the housing main body 200 and the second stage interfere with each other or not.

The second stage 163 and the second stage driving unit 164 have been described as examples of the configuration for simultaneously transporting the first chemical stage 161-1 and the first nitrogen gas stage 161-2 back and forth, but the configuration may be such that the second chemical stage (not shown) and the second chemical driving unit (not shown) for transporting the first chemical stage 161-1, and the second nitrogen gas stage (not shown) and the second nitrogen gas driving unit (not shown) for transporting the first nitrogen gas stage 161-2 are provided separately.

In the present embodiment, the configuration of the stage 2 is exemplified, and the stage may be configured to be 2 or more stages.

Referring to fig. 4, 9, and 10, the structure in which one end of the transfer unit 160 is inserted into the open part 701 formed in the wall 700 will be described.

One side end of the transfer unit 160 is inserted into the open part 701 of the wall 700, and the shelf part 150 is positioned inside the frame 120, so that the operator can more conveniently place the chemical hose 500 and the nitrogen hose 600 on the shelf parts 150-1 and 150-2.

That is, if the wall 700 is very thick, the placement parts 150-1,150-2 are located in the delivery part housing 105 recessed from the wall toward the interior of the building, as shown in FIG. 9, and the operator needs to bend down to place the chemical hose 500 and the nitrogen hose on the placement parts 150, 150-2.

When the operator puts the chemical hose 500 and the nitrogen gas hose 600 on the placement parts 150-1 and 150-2, if the operator is far from the placement parts 150-1 and 150-2, the operator needs to bend down to put the

hoses

500 and 600 on the placement parts 150-1 and 150-2, but when doing so, the

hoses

500 and 600 are very heavy, which may cause musculoskeletal diseases of the operator.

In the present invention, as shown in fig. 10, one end of the second stage 163 is inserted into the inner space of the opening 701, and the first stages 161-1 and 161-2 and the placement parts 150-1 and 150-2 loaded on the upper part of the second stage 163 are inserted into the opening 701. Therefore, the operator does not need to bend over, the working convenience can be improved, and the muscle and bone diseases of the operator can be prevented.

Although the second stage 163 is inserted into the opening 701 as described above, only the placement portions 150-1 and 150-2 and the first stages 161-1 and 161-2 may be inserted into the opening 701 without inserting the second stage 163 into the opening 701 as shown in fig. 9. That is, the ends of the first stages 161-1, 161-2 protrude more rearward than the ends of the second stage 163, and the protruding portions thereof upper loading rests 150-1,150-2 can move forward and backward.

The fixing unit 180 and the female tab cover removing unit 190 are explained with reference to fig. 11 to 15.

The fixing unit 180 prevents the chemical male connector 510 from coming off the chemical female connector 210 and prevents the nitrogen male connector 610 from coming off the nitrogen female connector 220 in a state where the chemical male connector 510 and the nitrogen male connector 610 are connected to the chemical female connector 210 and the nitrogen female connector 200, respectively.

The fixing unit 180 includes a chemical fixing unit 180-1 and a nitrogen fixing unit 180-2 to fix the chemical male connector 510 and the nitrogen male connector 610, respectively, but the chemical fixing unit 180-1 and the nitrogen fixing unit 180-2 have the same structure, and only the chemical fixing unit 180-1 will be described.

The chemical fixing unit 180-1 includes stoppers 181-1 and 183-1, which are stopped by a step 510a (fig. 5) formed on the outer periphery of the chemical male tab 510, thereby preventing the chemical male tab 510 from being separated from the chemical female tab 210.

The stoppers 181-.

The first stopper driving portion 182-1 and the second stopper driving portion 184-1 may be formed by a motor, a cylinder, etc. The first stopper driving portion 182-1 moves the first stopper 181-1 in the vertical direction, the first stopper 181-1 is located behind the stepped portion 510a, the second stopper driving portion 184-1 moves the second stopper 183-1 in the horizontal direction, and the second stopper is located behind the stepped portion 510a, so that the male chemical connector 510 is prevented from falling off the female chemical connector 210.

The fixing unit 180 thus constructed has not only a simple structure but also an advantage of firmly fixing the male connector 510 and the stoppers 181 and 183.

Further, a chemical female joint cover 211 for sealing an end of the chemical female joint 210 is provided, and a stepped portion 211a is formed on the outer periphery of the chemical female joint cover 211. When the chemical is not transferred, the chemical female joint cover 211 is coupled to the chemical female joint 210, and the stopper is stopped by the step 211a to prevent the chemical female joint cover 211 from falling off the chemical female joint 210.

Accordingly, the male connectors 510,610 and the cover 211 can be fixed using the fixing unit 180, and the structure can be simplified.

The female joint cover removing unit 190 is configured to couple or separate a chemical female joint cover 211 and a nitrogen female joint cover (not shown), which are provided to close open ends of a chemical female joint 210 and a nitrogen female joint provided on the chemical storage tank side.

The female joint 210 for chemicals is formed with an insertion groove 210a in a front-rear direction, and a female joint cover 211 for chemicals is inserted into the insertion groove 210a when chemicals are not transferred between the chemical tank and the chemical storage tank.

The present invention is configured to be coupled to or separated from the chemical female joint 210 and the nitrogen female joint 220 in a state where the chemical female joint cover 211 and the nitrogen female joint cover and the female joint cover removing unit 190 are integrally coupled.

The female joint cover removing unit 190 is composed of a chemical female joint cover removing unit 190-1 for removing a chemical female joint cover 211 and a nitrogen female joint cover removing unit 190-2 for removing a nitrogen female joint cover.

Hereinafter, only the chemical mother tab cap removing unit 190-1 will be described, and the nitrogen mother tab cap removing unit 190-2 and the chemical mother tab cap removing unit 190-1 are constituted by the same structure, and detailed description thereof will be omitted.

The above-described female tab cover removing unit 190-1 for chemicals includes: a chemical cover fixing part 191-1, a chemical front and rear guide 192-1, a chemical front and rear driving part 193-1, a chemical upper and lower guide 194-1, and a chemical upper and lower driving part 195-1.

The chemical cap fixing portion 191-1 is used to fix the chemical cap 211 to the chemical cap removing unit 190-1. The chemical-use female joint cover 211 is integrally coupled at one end thereof to the chemical-use cover fixing portion 191-1.

The chemical front-rear guide 192-1 has a longitudinal length, and guides the chemical cover fixing portion 191-1 to be transported in the longitudinal direction on the chemical front-rear guide 192-1.

The chemical front and rear driving part 193-1 may be formed of a cylinder, a motor, or the like, and provides a driving force to transfer the chemical cover fixing part 191-1 in the front and rear direction on the chemical front and rear guide rail 192-1.

The chemical upper and lower guide rails 192-1 have a length in the vertical direction to guide the chemical, and the chemical upper and lower driving part 195 may be formed of a cylinder, a motor, or the like.

The chemical cover fixing part 191-1, the chemical front-rear guide 192-1, and the chemical front-rear driving part 193-1 are all vertically transferred on the chemical upper-lower guide 194-1 by the chemical upper-lower driving part 195-1.

The nitrogen gas female joint cap removing unit 190-2 includes a nitrogen gas cap fixing portion, a nitrogen gas front and rear guide rail, a nitrogen gas front and rear driving portion, a nitrogen gas upper and lower guide rail, and a nitrogen gas upper and lower driving portion, respectively, for attaching and detaching the nitrogen gas female joint cap.

Fig. 11 illustrates a state where the chemical mother joint cover 211 is moved upward, being separated from the chemical mother joint 210.

Fig. 12 and 13 show a state in which the chemical up-and-down driving part 195-1 is driven in the state of fig. 11, and the chemical mother tab cover 211 is moved downward integrally with the chemical cover fixing part 191-1 and the chemical front-and-back driving part 193-1. At this time, the chemical female joint cover 211 is positioned behind the chemical female joint 210 insertion groove 210 a.

Fig. 14 and 15 show a state in which the chemical front-rear driving part 193-1 is driven in the state of fig. 12 and 13, the chemical female joint cover 211 and the chemical cover fixing part 191-1 are integrally moved forward, and the chemical female joint cover 211 is inserted into the chemical female joint 210 insertion groove 210 a. When the chemical female joint cover 211 is inserted into the insertion groove 210a, the first stopper driving part 182 and the second stopper driving part 184 are driven to move the first stopper 181 and the second stopper 183 to be stopped by the stepped part 211a, thereby fixing the chemical female joint cover 211.

The process of separating the above-described female terminal cover 211 for chemicals from the female terminal cover 210 for chemicals is reverse to the above description. The nitrogen gas female joint cap is also coupled to and separated from the nitrogen gas female joint in the same process as the chemical female joint cap 211.

The operation of the automatic chemical supply device 100 of the present invention having the above-described configuration will be described below.

The operator rotates the upper door 132 of the opening shield door 130 upward. At this time, the rest portion 150 is located inside the frame 120, adjacent to the shield door 130.

The chemical hose 500 and the nitrogen hose 600 are connected at their ends with a chemical male joint 510 and a nitrogen male joint 610, respectively, and the open ends of the chemical male joint 510 and the nitrogen male joint 610 are plugged with a chemical male joint cap (not shown) and a nitrogen male joint cap (not shown), respectively. The operator pulls the chemical hose 500 and the nitrogen hose 600 in this state out of the tank truck, removes the male connector cap manually, and rests on the rest portion 150 inside the frame 120. Of course, the male cap may be configured to be automatically removed by a male cap removing unit (not shown).

As described above, chemical hose 500 and nitrogen hose 600 are placed on and fixed to placement part 150, chemical hose 500 is passed through opening 136-1 of chemical inlet 135-1, and nitrogen hose 600 is passed through opening 136-2 of nitrogen inlet 135-2. In this state, the upper door 132 is rotated downward and closed, and the chemical hose 500 and the nitrogen gas hose 600 can be conveyed in the direction of the chemical female connector 210 and the nitrogen gas female connector 220 by the conveying unit 160 in a state where the shield door 130 is closed.

At this time, the chemical female joint cap 211 blocking the end of the chemical female joint 210 and the nitrogen female joint cap (not shown) blocking the end of the nitrogen female joint may be automatically removed from the chemical female joint 210 and the nitrogen female joint 220 by the female joint cap removing unit 190. That is, in the state of fig. 14 and 15, the chemical front-rear driving part 193-1 and the nitrogen gas front-rear driving part are driven, and as shown in fig. 12 and 13, the chemical female joint cover 211 and the nitrogen gas female joint cover are moved rearward and separated from the chemical female joint 210 and the nitrogen gas female joint 220. At this time, the chemical up-down driving part 195-1 and the nitrogen gas up-down driving part start driving, and as shown in fig. 11, the chemical mother joint cap 211 and the nitrogen gas mother joint cap move upward.

In this state, the transfer unit 160 is driven, the chemical hose 500 and the nitrogen gas hose 500 move linearly forward, and the chemical male joint 510 and the nitrogen gas male joint 610 are connected to the chemical female joint 210 and the nitrogen gas female joint 220.

The method for driving the transfer unit 160 may include driving the first stage driving unit 162 to move the resting unit 150 forward by a predetermined distance, driving the second stage driving unit 164 to move the resting unit 150 forward, and connecting the

male connectors

510 and 610 and the

female connectors

210 and 220; the second stage driving part 164 may be driven first to move the

male connectors

510 and 610 forward by a set distance to the vicinity of the

female connectors

210 and 220, and then the first stage driving part 162 may be driven to move the resting part 150 forward again, so that the

male connectors

510 and 610 and the

female connectors

210 and 220 are connected to each other. At this time, the distal end portion of the male chemical adaptor 510 is positioned further forward than the distal end portions of the first and

second stands

161 and 163.

At this time, the control part may adjust the forward and backward moving speed of the placement part 150 driven by the first stage driving part. That is, the first stage driving part

At this time, the control unit may adjust the forward and backward movement speed of the placement unit 150 driven by the first stage driving unit 162. That is, when the first stage driving part 162 drives the

male connectors

510 and 610 to be coupled with the

female connectors

210 and 220, the control part may lower the speed of the first stage driving part 162 to be lower than that of the second stage driving part 164. At this time, the forward and backward moving speed of the resting portion 150 driven by the first stage driving portion 162 may be set to be variable in movement.

The control unit may adjust the forward/backward movement speed of the placement unit 150 driven by the second stage driving unit 164. That is, when the second stage driving part 164 drives the

male connectors

510 and 610 to be coupled with the

female connectors

210 and 220, the control part may perform adjustment so that the speed of the second stage driving part 164 may be lowered lower than that of the first stage driving part 162. At this time, the forward and backward moving speed of the resting portion 150 driven by the second stage driving portion 164 may be set to be variable in movement.

When the centers of the male connectors 510,610 and the female connectors 210,220 are not aligned and the male connectors 510,610 are inserted into the female connectors 210,220, the male connectors 510,610 are slowly inserted, and impact can be buffered even if the male connectors 510,610 collide with each other, thereby completely coupling the male connectors 510,610 and the

female connectors

210, 220.

When the

male connectors

510 and 610 are connected to the

female connectors

210 and 220, nitrogen gas of a predetermined pressure is supplied from the inside of the housing body 200 to the tank car chemical tank through the nitrogen gas hose 600, and the chemical in the tank car chemical tank is transferred to the chemical tank through the chemical hose 500 by the nitrogen gas pressure through the pipe inside the housing body 200.

While the above description has been made of the situation where the chemical is delivered from the tank car chemical tank to the chemical storage tank by the chemical hose, the same configuration may be applied to the case where the chemical stored in the chemical storage tank is delivered to the tank car chemical tank by the chemical hose 500.

The frame 120 and the shield door 130 may be integrally provided with the conveyor housing 105 and inserted into the opening 701 of the wall 700, or may be separately provided from the conveyor housing 105 and inserted into the opening 701 of the wall 700.

The shield door 130 may be integrally coupled to the conveyor housing 105, the frame 120 may be provided in the opening 701 of the wall 700, and the shield door 130 coupled to the conveyor housing 105 may be inserted into the frame 120 to open and close the frame 120.

The shield door 130 may be configured to open and close only the open part 701 of the wall 700 and be integrally coupled to the wall 700, and the frame 120 may be coupled to the conveyor housing 105 and be inserted into the open part 701.

While the preferred embodiments of the present invention have been illustrated in detail, the present invention is not limited to the embodiments, and various modifications may be made within the scope of the appended claims, the detailed description of the invention, and the accompanying drawings.

Claims

1. An automatic chemical supply device, comprising:

a shelf part for placing a chemical hose (500) which is connected to the chemical tank, connects the chemical tank and the chemical storage tank, and supplies a chemical from one side to the other side;

a transfer unit (160), wherein the transfer unit (160) is composed of a first rack (161), a first rack driving part (162), a second rack (163) and a second rack driving part (164), the placing part (150) is loaded on the upper part of the first rack (161), and when the chemical hose (500) is placed on the placing part (150), the chemical hose (500) is transferred along the front-back direction to connect the chemical hose (500) with the chemical storage tank side; a first stage driving section (162) that conveys the placement section (150) in the front-rear direction on the first stage (161); a second stage (163) on which the first stage (161) is placed and which supports the first stage (161) to be conveyed in the front-rear direction; a second carriage driving section (164) that conveys the first carriage (161) and the resting section (150) in the front-rear direction on the second carriage (163);

a control unit for controlling the driving of the first stage driving unit (162) and the second stage driving unit (164),

when the first stage driving part (162) drives a male joint (510) for chemicals to be combined with a female joint (210) for chemicals located at the chemical storage tank side, wherein the male joint (510) for chemicals is connected to the end of the chemical hose (500), the control part makes the speed of the first stage driving part (162) lower than the speed of the second stage driving part (164) by control.

2. An automatic chemical supply device, comprising:

when the second stage driving part (164) drives the male joint (510) for chemicals to be combined with the female joint (210) for chemicals located at the chemical storage tank side, in which the male joint (510) for chemicals is connected to the end of the chemical hose (500), the control part makes the speed of the second stage driving part (164) lower than the speed of the first stage driving part (162) by controlling.

3. The automatic chemical supply device according to claim 1 or 2,

the placing part (150) consists of a placing part (150-1) for placing the chemicals of the chemical hose (500) and a placing part (150-2) for placing the nitrogen of the nitrogen hose (600);

the first stage (161) is composed of a first chemical stage (161-1) provided with a chemical shelf (150-1) at the upper part and a first nitrogen stage (161-2) provided with a nitrogen shelf (150-2) at the upper part;

the first stage driving part (162) is composed of a first chemical driving part (162-1) for conveying the chemical placing part in the front-back direction and a first nitrogen gas driving part (162-2) for conveying the nitrogen gas placing part (150-2) in the front-back direction.

4. The automatic chemical supply device according to claim 3,

the chemical processing apparatus further comprises an intermediate stage (165) which is driven by the second stage driving unit (164) and is transported in the front-rear direction on the second stage (163), wherein the first chemical stage (161-1) and the first nitrogen gas stage (161-2) are fixed to the upper portions of both sides of the intermediate stage.

5. The automatic chemical supply device according to claim 3,

a chemical male joint (510) is connected to an end of the chemical hose (500), and a chemical female joint (210) is provided on the chemical storage tank side;

the end part of the nitrogen hose (600) is connected with a male connector (610) for nitrogen, and a female connector (220) for nitrogen is arranged on the chemical storage tank side;

the first chemical driving part (162-1) drives the chemical shelf part (150-1) to forward for a set distance, the first nitrogen driving part (162-2) drives the nitrogen shelf part (150-2) to forward for a set distance, at this time, the second rack driving part (164) drives the first chemical rack (161-1) and the nitrogen rack (161-2) to forward again as a whole, so that the chemical male joint (510) is connected to the chemical female joint (210), and the nitrogen male joint (610) is connected to the nitrogen female joint (220).

6. The automatic chemical supply device according to claim 3,

a male joint (510) for chemicals is connected to the end of the hose (500) for chemicals, and a female joint (210) for chemicals is arranged on the chemical storage tank side;

the first chemical stage 161-1 and the first nitrogen gas stage 161-2 are integrated, and the chemical shelf unit 150-1 is driven by the first chemical driving unit 162-1 to be transferred forward again in a state of being driven forward by the second stage driving unit 164 for a set distance, so that the chemical male joint 510 is connected to the chemical female joint 210, the nitrogen gas shelf unit 150-2 is driven forward by the first nitrogen gas driving unit 162-2, and the nitrogen gas male joint 610 is connected to the nitrogen gas female joint 220.

7. The automatic chemical supply device according to claim 1 or 2,

an opening part 701 penetrating the inside and outside of a building is formed in a building wall 700 provided with an automatic chemical supply device, and when an operator places the chemical hose 500 on the placement part 150, the placement part 150 is positioned in an internal space of the opening part 701.

8. The automatic chemical supply device according to claim 7,

one end of the second frame (163) is inserted into the internal space of the open part (701).

9. The automatic chemical supply device according to claim 7,

one end of the first stage (161) is inserted into the internal space of the open part (701).

10. The automatic chemical supply device according to claim 1 or 2,

the end of the chemical hose (500) is connected with a male joint (510) for chemicals;

the chemical storage tank is laterally provided with: a chemical female joint (210); and a female joint cover (211) for chemicals, which is inserted into the female joint (210) insertion groove (210a) for chemicals;

and a chemical female joint cover removing unit (190-1) is provided, and the chemical female joint cover (211) is combined with the chemical female joint (210) or separated from the chemical female joint (210) under the state that the chemical female joint cover (211) is combined into a whole.

11. The automatic chemical supply device according to claim 10,

the chemical female tab cap removing unit (190-1) includes: a chemical up-and-down driving part (195-1) which moves the chemical up and down by the female joint cover (211); and a chemical front-rear driving unit (193-1) which moves in the front-rear direction in a state where the chemical female joint cover (211) is positioned behind the chemical female joint (210) insertion slot (210a) and inserts or extracts the chemical female joint cover (211) into or from the insertion slot (210 a).

12. The automatic chemical supply device according to claim 11,

the chemical female joint removal unit (190-1) is provided with a chemical cover fixing part (191-1) for fixing the chemical female joint cover (211), the chemical cover fixing part (191-1) is arranged on a chemical front and rear guide rail (192-1) with a length in the front and rear direction, the chemical lid fixing part (191-1) is driven by the chemical front-rear driving part (193-1) to move in the front-rear direction on the chemical front-rear guide rail (192-1), the chemical cover fixing part (191-1), the chemical front-rear guide rail (192-1), and the chemical front-rear driving part (193-1) are driven by the chemical up-down driving part (195-1) to move in the up-down direction on the chemical up-down guide rail (194-1) having a length in the up-down direction.

13. The automatic chemical supply device according to claim 1 or 2,

a chemical male joint (510) is connected to the end of the chemical hose (500), and a chemical female joint (210) connected to the chemical male joint (510) is arranged on the chemical storage tank side;

a fixing unit (180) is provided to prevent the chemical male connector (510) from being detached from the chemical female connector (210) when the chemical male connector (510) is coupled to the chemical female connector (210).

14. The automatic chemical supply device according to claim 13,

the fixing unit (180) includes stoppers (181,183) that are stopped by a step (510a) formed on the outer periphery of the chemical male tab (510) to prevent the chemical male tab (510a) from coming off the chemical female tab (210).

15. The automatic chemical supply device according to claim 14,

the blocking parts (181,183) are composed of a first blocking part (181) and a second blocking part (182), a first blocking part driving part (182-1) drives the first blocking part to move along the up-down direction, and a second blocking part driving part (184-1) drives the second blocking part to move along the horizontal direction.

16. The automatic chemical supply device according to claim 14,

when the chemical is not delivered, a chemical female joint cover (211) is combined on the chemical female joint (210) to seal the end part;

when the chemical female joint cover (211) seals the end of the chemical female joint (210), the step part (211a) formed on the periphery of the chemical female joint cover (211) blocks the stoppers (181, 183).

17. The automatic chemical supply device according to claim 1 or 2,

and a control unit which, when one of the first and second stage driving units (162, 164) is driven to forward feed the male chemical joint (510) by a predetermined distance, drives the other to forward feed the male chemical joint (510) so that the distal end of the male chemical joint (510) is positioned in front of the distal ends of the first and second stages (161, 163), and controls the male chemical joint (510) to be connected to the female chemical joint (210).