KR102667005B1 - Liquid mixing dispenser - Google Patents

Abstract

The present invention relates to a liquid mixing and discharging device that can quickly and effectively mix different types of liquids, precisely control the discharge amount of the mixed liquid, and increase the foaming power of the discharged liquid. It includes a storage tank in which liquid is stored, and a dispenser that mixes and discharges different types of liquid supplied from the storage tank. The dispenser includes a supply unit that supplies different liquids, a mixing unit that mixes the different liquids transferred from the supply unit, and a discharge unit that discharges the liquid mixed in the mixing unit. The storage tank includes a first tank in which the first liquid is stored and a second tank in which the second liquid is stored. At this time, the first tank further includes an oxygen supply unit to increase the amount of dissolved oxygen in the first liquid.

Description

Liquid mixing dispensing device {LIQUID MIXING DISPENSER}

The present invention relates to a liquid mixing and discharging device, and more specifically, to a device that can quickly and effectively mix different types of liquids, precisely control the discharge amount of the mixed liquid, and increase the foaming power of the discharged liquid. It relates to a liquid mixing discharge device that can

A liquid discharge device is a device used to discharge a fixed amount of viscous liquid, and is mainly used for molding, bonding, and sealing work in various fields such as semiconductors, optical products, and home appliances.

A typical liquid discharge device includes a single-component discharge device and a two-component discharge device that discharge one type of liquid, and a two-component discharge device that mixes and discharges two different types of liquid (hereinafter referred to as 'heterogeneous'). Includes.

Among the above-mentioned liquid discharge devices, the two-component discharge device mixes and discharges a liquid base and a hardener that reacts with the base to harden. If the base and the hardener are mixed and discharged in advance, there is a risk that the mixed liquids may react with each other and harden. Therefore, it is desirable to store each liquid in a separate container and mix them immediately before being discharged.

However, the conventional two-liquid discharge device had a problem in that different liquids delivered from the storage tank did not mix well. In particular, in order to completely mix different types of liquids, there was a problem that the space in which the liquids were mixed had to be long.

The present invention is intended to solve the problems of the prior art described above, and its purpose is to provide a liquid mixing and discharging device that can quickly and effectively mix different types of liquids.

In addition, the purpose of the present invention is to provide a liquid mixing discharge device that can not only precisely control the discharge amount of the mixed liquid, but also improve dustproofing and soundproofing effects by increasing the foaming force when discharging the mixed liquid.

The liquid mixing and discharging device according to the present invention for achieving the above object includes a storage tank in which different types of liquids are stored, and a dispenser that mixes and discharges the different types of liquids supplied from the storage tank.

The dispenser includes a supply unit that supplies different liquids, a mixing unit that mixes the different liquids transferred from the supply unit, and a discharge unit that discharges the liquid mixed in the mixing unit.

The mixing unit includes a syringe into which the different liquids transferred from the supply unit flow, a mixing screw for mixing the different liquids introduced into the syringe, and a mixing screw that delays curing due to a temperature increase in the process of mixing the different liquids. It further includes a thermoelectric element and a cooling block that radiates heat generated from the thermoelectric element to the outside.

The discharge unit includes a needle that discharges the liquid mixed in the mixing unit, and a gripper that controls the discharge amount of the needle, wherein the needle is an elastically deformable tube, and the gripper contracts or expands the needle to adjust the discharge amount. Adjust.

Meanwhile, the storage tank includes a first tank in which the first liquid is stored and a second tank in which the second liquid is stored. At this time, the first tank further includes an oxygen supply unit to increase the amount of dissolved oxygen in the first liquid.

The present invention configured as described above can quickly and effectively mix different liquids through a syringe and a mixing screw installed therein. In particular, by installing a thermoelectric element and a cooling block around the screw where different liquids are mixed, hardening due to a rise in temperature can be prevented during the mixing process of different liquids.

In addition, the present invention can precisely control the discharge amount of liquid through an elastically deformable needle and a gripper that contracts or expands the needle.

In addition, the present invention increases the amount of dissolved oxygen by injecting oxygen into the first liquid stored in the first tank, thereby significantly improving the foaming power in the process of mixing and discharging the liquid, thereby creating a molding with excellent dustproofing and soundproofing effects. , bonding and sealing agents can be provided.

1 is a perspective view of a liquid mixing discharge device according to an embodiment of the present invention.
Figure 2 is a perspective view of a dispenser among the liquid mixing and dispensing devices according to an embodiment of the present invention.
Figure 3 is a cross-sectional view of the mixing unit and the discharge unit of the dispenser according to an embodiment of the present invention.
Figure 4 is a perspective view of a storage tank in the liquid mixing discharge device according to an embodiment of the present invention.
Figure 5 is a cross-sectional view of a storage tank in the liquid mixing discharge device according to an embodiment of the present invention.

The above-described objects, features, and advantages will be described in detail later with reference to the attached drawings, so that those skilled in the art will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. In the drawings, identical reference numerals are used to indicate identical or similar components.

Although first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another component, and unless specifically stated to the contrary, the first component may also be the second component.

Throughout the specification, unless otherwise stated, each element may be singular or plural.

Hereinafter, the “top (or bottom)” of a component or the arrangement of any component on the “top (or bottom)” of a component means that any component is placed in contact with the top (or bottom) of the component. Additionally, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

Additionally, when a component is described as being “connected,” “coupled,” or “connected” to another component, the components may be directly connected or connected to each other, but there is no “connection” between each component. It should be understood as being “interposed,” or that each component may be “connected,” “combined,” or “connected” through other components.

As used herein, singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, terms such as “consists of” or “comprises” should not be construed as necessarily including all of the various components or steps described in the specification, and some of the components or steps may include It may not be included, or it should be interpreted as including additional components or steps.

Throughout the specification, when referred to as “A and/or B”, this means A, B or A and B, unless specifically stated to the contrary, and when referred to as “C to D”, this means unless specifically stated to the contrary. Unless there is one, it means that it is C or higher and D or lower.

Figure 1 is a perspective view of a liquid mixing and discharging device according to an embodiment of the present invention, Figure 2 is a perspective view of a dispenser among the liquid mixing and discharging device according to an embodiment of the present invention, and Figure 3 is an embodiment of the present invention. This is a cross-sectional view of the mixing section and discharge section of the following dispenser.

The liquid mixing and discharging device 1 according to an embodiment of the present invention is a device that mixes and discharges different types of liquids, including a dispenser 100 that mixes and discharges different types of liquids, and different types of liquids supplied to the dispenser 100. A frame ( 600).

The dispenser 100 is a device that mixes and discharges different liquids supplied from the storage tanks 200 and 300, more specifically, different liquids supplied through different flow paths, and has supply parts 110 and 120 through which the different liquids are supplied. It is composed of a mixing unit (130-170) that mixes the different liquids transferred from the supply units (110, 120), and a discharge unit (180, 190) that discharges the mixed liquid from the mixing units (130-170).

The supply units 110 and 120 are composed of a supply block 110 to which different types of liquids pressured from the storage tanks 200 and 300 are supplied, and a valve 120 that controls the different types of liquids supplied to the supply block 110.

The supply block 110 has a substantially rectangular parallelepiped shape, and a flow path (not shown) is formed inside it to transfer the supplied liquid to the mixing units 130 to 170.

The supply block 110 is provided with a first supply port 112 through which the first liquid (main agent) is supplied, and a second supply port 114 through which the second liquid (hardener) is supplied. In addition, an injection port 116 is provided through which a cleaning solution is injected to remove and clean the liquid remaining inside after mixing and discharging the liquid. At this time, the aforementioned ports 112, 114, and 116 are connected to the mixing units 130 to 170 and the discharge units 180 and 190 through flow paths (not shown).

The valve 120 is installed at one end (front end in the drawing) of the supply block 110 to control the liquid (first and second liquids) supplied to the supply block 110, and adjusts to control the amount of liquid supplied. It further includes (112). At this time, the adjust 112 is configured as a pair so that the supply amounts of the first liquid and the second liquid can be individually controlled.

The mixing units 130 to 170 include a syringe 130 into which the different liquids transferred from the supply block 110 flow, and a mixing screw 140 that mixes the different liquids introduced into the syringe 130. , It consists of a motor 150 that rotates the mixing screw 140.

The syringe 130 is shaped like a pipe extending in one direction, and the upper end, where different types of liquid flows in, is relatively wide, and the lower end, where the mixed liquid is discharged, is relatively narrow. At this time, the upper end of the syringe 130 is connected to the supply units 110 and 120 through the first adapter 132, and the lower end is connected to the discharge units 180 and 190 through the second adapter 134.

The mixing screw 140 is a shaft with a spiral groove 142 for mixing and transferring liquid. The mixing screw 140 is rotatably installed inside the syringe 130, and when it rotates, it mixes different liquids flowing into the syringe 130 and simultaneously transfers them to the discharge portions 180 and 190. At this time, the spiral groove 142 is formed consistently along the mixing screw 140 so that the mixed liquid can be discharged at a constant pressure.

The motor 150 is a driving means for rotating the mixing screw 140. The rotation shaft 152 of the motor 150 passes through the supply block 110 and is connected to the mixing screw 140 through the rotor 154.

On the other hand, when mixing the first liquid, which is the main liquid, and the second liquid, which is the curing agent, the temperature rises and curing is promoted. To prevent this, the mixing parts 130 to 170 of this embodiment are equipped with a thermoelectric element 160 and a cooling block ( 170) is installed.

The thermoelectric element 160 is installed to surround the middle portion of the syringe 130 where different types of liquids are mixed. The thermoelectric element 160 cools the syringe 130 when power is applied, suppressing temperature rise during the mixing process of different liquids, thereby delaying hardening of the liquid.

The cooling block 170 is installed to entirely surround the thermoelectric element 160. The cooling block 170 dissipates heat generated in the thermoelectric element 160 to the outside so that the thermoelectric element 160 can maintain a constant cooling performance. To this end, the cooling block 170 has a port 172 for the entrance and exit of the refrigerant. ) is provided.

The discharge units 180 and 190 are composed of a needle 180 that discharges the liquid mixed in the mixing units 130 to 170, and a gripper 190 that controls the discharge amount of the needle 180.

The needle 180 is a tube connected to the lower end of the syringe 130, and is made of a material such as elastically deformable silicone to control the discharge amount of the mixed liquid. At this time, the needle 180 is supported by the guide 192 so that the mixed liquid can be discharged at the correct location.

The gripper 190 is installed on the discharge port 182 side of the needle 180 and consists of a pair moving in the radial direction of the needle 180. This gripper 190 moves in the radial direction of the needle 180 when the actuator 194 is operated and controls the discharge amount of the mixed liquid by contracting or expanding the discharge port 182 of the needle 180.

Figure 4 is a perspective view of a storage tank in the liquid mixing and discharging device according to an embodiment of the present invention, and Figure 5 is a cross-sectional view of the storage tank in the liquid mixing and discharging device according to an embodiment of the present invention.

The storage tanks 200 and 300 include a first tank 200 in which the first liquid is stored and a second tank 300 in which the second liquid is stored.

The liquid mixing and discharging device 1 of this embodiment can quickly and effectively mix different liquids, precisely control the discharge amount of the mixed liquid, and increase the foaming power of the discharged liquid. The purpose.

To this end, the first tank 200 of this embodiment has a structure capable of increasing the amount of dissolved oxygen in the first liquid. That is, the first tank 200 includes a tank body 210 in which the first liquid is stored, an oxygen supply unit 220 for injecting oxygen into the first liquid stored in the tank body 210, and an oxygen supply unit 220 for injecting oxygen into the first liquid stored in the tank body 210. It consists of an impeller 230 to increase the amount of dissolved oxygen, and a motor 240 to rotate the impeller 230.

The oxygen supply unit 220 consists of a supply valve 222 that controls oxygen, and a supply pipe 224 that supplies oxygen supplied through the supply valve 222 into the interior of the tank body 210.

The supply pipe 224 extends to the bottom of the tank body 210 to effectively incorporate oxygen into the first liquid. At this time, the end of the supply pipe 224, that is, the outlet 226, is located away from the bottom of the tank body 210 and is manufactured in a tapered shape that expands toward the end.

In this way, when the outlet 226 of the supply pipe 224 is manufactured in a tapered shape, the bubbles of oxygen discharged through the outlet 226 become larger, so the liquid mixed and discharged from the dispenser 100 has high foaming power. You can do it.

Meanwhile, although not shown in the drawing, a plurality of through holes (not shown) may be formed in the outlet 226 of the supply pipe 224. By forming a plurality of holes (not shown) in the outlet 226, the discharged oxygen can be converted into fine bubbles to improve mixing efficiency with the first liquid.

The impeller 230 is a stirring means for mixing oxygen supplied through the oxygen supply unit 220 into the first liquid, and is rotated by the motor 240 installed on the upper part of the tank body 210 to increase the dissolved oxygen content of the first liquid. It plays a role in increasing.

The impeller 230 of this embodiment consists of a pair installed on the shaft 242 connected to the motor 240. That is, it consists of a first impeller 232 installed at the bottom of the shaft 242 and a second impeller 234 installed at the middle of the shaft 242.

The first impeller 232 is formed with a smaller diameter than the first impeller 234, because the first impeller 232 installed relatively deeply receives more resistance when in contact with the first liquid.

In addition, the first impeller 232 is located higher than the outlet 226 of the supply pipe 224, so that oxygen supplied from the outlet 226 can be effectively mixed into the first liquid.

The second impeller 234 is formed with a larger diameter than the first impeller 232, and is installed at the middle of the shaft 242 so as to be located directly below the liquid level of the first liquid stored in the tank body 210.

Meanwhile, the second impeller 234 may be movably installed at the middle of the shaft 242 so that it can move along the liquid level of the first liquid stored in the tank body 210.

For this purpose, a sensor (not shown) for measuring the liquid level of the first liquid stored in the tank body 210, and an actuator (not shown) for moving the second impeller 234 according to the liquid level measured through the sensor (not shown). It may be configured to further include (not shown).

Additionally, when the second impeller 234 is made of a material with a relatively low specific gravity compared to the first liquid stored in the tank body 210, it can move and stir along the liquid surface of the first liquid.

The first tank 200 includes a pressure sensor 250 that measures the internal pressure, a regulator 260 and a vent port 270 that control the internal pressure of the first tank 200, and A discharge port 280 is provided to supply the stored first liquid (first liquid containing oxygen) to the dispenser 100.

Figure 6 is a flowchart showing a liquid mixing and discharging method using a liquid mixing and discharging device according to an embodiment of the present invention.

The liquid mixing and discharging method according to this embodiment includes a total of four steps. That is, the first step (S10) of charging the first liquid and the second liquid into the first tank 200 and the second tank 300, respectively, and oxygen into the first tank 200 filled with the first liquid. A second step (S20) of supplying and stirring so that oxygen is mixed, a third step (S30) of pumping the first liquid and the second liquid mixed with oxygen to the dispenser, and mixing the first liquid and the second liquid. It includes a fourth step (S40) and a fifth step (S50) of discharging the mixed liquid.

In the first step (S10), the first liquid as the main agent is charged into the first tank 200, and the second liquid as the hardener is charged into the second tank 300. At this time, the internal pressure of the first tank 200 filled with the first liquid and the second tank 300 filled with the second liquid must be maintained the same. For example, in this embodiment, the first tank 200 and the second tank 300 are The internal pressure of tank 2 (300) is maintained at 2 bar.

In the second step (S20), oxygen is supplied to the first tank 200 and stirred so that oxygen is mixed into the first liquid.

First, looking at the oxygen supply process, the internal pressure of the first tank 200 is reduced from 2 bar to 1.8 bar, oxygen is supplied to the inside of the first tank 200 pressurized to 1.8 bar, and then the first tank (200) is When the internal pressure of 200) reaches 2 bar, oxygen supply is stopped.

Here, the internal pressure of the first tank 200 is controlled (pressurized) using the pressure sensor 250, the regulator (260 in FIG. 5), and the vent port (270 in FIG. 5), and the oxygen is supplied through the oxygen supply unit (FIG. 4). It is supplied through 220).

Meanwhile, the process of stirring to incorporate oxygen can be carried out in two ways, depending on need. That is, oxygen is supplied through the oxygen supply unit (220 in FIG. 4) and at the same time, the impeller 230 is rotated to stir the first liquid so that oxygen is mixed, or the supply of oxygen through the oxygen supply unit (220 in FIG. 4) is completed. Afterwards, the impeller 230 can be rotated to stir the first liquid so that oxygen is incorporated.

In the third step (S30), the first liquid (first liquid containing oxygen) and the second liquid stored in the first tank 200 are pressure-transported to the dispenser 100. That is, the first liquid and the second liquid can be pumped by operating the valve (120 in FIG. 2) provided in the dispenser 100. At this time, the supply amount of liquid can be adjusted by using the adjust (112 in FIG. 2). there is. In particular, the supply amounts of the first liquid and the second liquid can be adjusted individually as needed.

The first liquid and the second liquid supplied through the above-described process are transferred to the syringe 130 of the mixing unit 130 to 170 through the supply block 110.

In the fourth step (S40), the first liquid and the second liquid transferred to the syringe 130 of the mixing unit 130 to 170 are mixed and transferred to the discharge unit 180. At this time, the mixing units 130 to 170 are provided with a thermoelectric element 160 and a cooling block 170 to keep the temperature of the syringe 130 constant.

Therefore, in the process of mixing the first liquid, which is the main liquid, and the second liquid, which is the hardener, the temperature is prevented from rising and hardening of the liquid is delayed. For example, in this embodiment, the temperature of the syringe 130 is maintained at -20 to 10°C using the thermoelectric element 160 and the cooling block 170.

The fifth step (S50) is to discharge the mixed liquid, that is, to a product requiring molding, bonding, and sealing. At this time, the needle 180 through which the liquid is discharged is made of an elastically deformable material and contracts or expands when the gripper 190 is operated, so that the discharge amount of the liquid can be adjusted.

Therefore, the flow of liquid discharged through the needle 180 can be prevented, and quantitative control is possible through precise tact time operation. In addition, as described above, by mixing oxygen into the first liquid, the foaming force when the liquid is discharged can be increased, thereby improving dustproofing and soundproofing effects.

As described above, the present invention has been described with reference to the illustrative drawings, but the present invention is not limited to the embodiments and drawings disclosed herein, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that transformation can occur. In addition, although the operational effects according to the configuration of the present invention were not explicitly described and explained in the above description of the embodiments of the present invention, it is natural that the predictable effects due to the configuration should also be recognized.

100: Dispenser 110: Supply block
120: valve 130: syringe
140: mixing screw 150: motor
160: thermoelectric element 170: cooling block
180: Needle 190: Gripper
200: first tank 220: oxygen supply unit
230: Impeller 300: Second tank

Claims (19)

A liquid mixing and dispensing device comprising a storage tank in which different types of liquids are stored and a dispenser that mixes and discharges the different types of liquids supplied from the storage tank,
The dispenser is,
A supply unit where different types of liquid are supplied;
a mixing unit that mixes different liquids transferred from the supply unit; and
It includes a discharge unit that discharges the liquid mixed in the mixing unit,
The storage tank is,
It includes a first tank in which the first liquid is stored and a second tank in which the second liquid is stored,
The first tank further includes an oxygen supply unit that supplies oxygen to the first tank to increase the amount of dissolved oxygen by injecting the first liquid.
In claim 1,
The supply department,
A liquid mixing and discharging device comprising a supply block including a pair of supply ports through which different types of liquid are respectively supplied, and a valve controlling the liquid supplied to the supply block.
In claim 2,
A liquid mixing and discharging device in which a cleaning liquid injection port for cleaning the mixing unit and the discharging unit is formed in the supply block.
In claim 3,
The valve further includes an adjuster that controls the supply amount of liquid.
In claim 1,
The mixing unit,
A liquid mixing and discharging device comprising a syringe into which the different liquids transferred from the supply unit flow, and a mixing screw for mixing the different liquids introduced into the syringe.
In claim 5,
The mixing unit further includes a motor that rotates the mixing screw,
A liquid mixing and dispensing device wherein the motor is connected to the mixing screw through a rotor.
In claim 6,
The mixing unit,
A thermoelectric element that delays hardening due to a temperature increase in the process of mixing different liquids,
A liquid mixing and discharging device further comprising a cooling block that discharges heat generated from the thermoelectric element to the outside.
In claim 1,
The discharge part,
A needle that discharges the mixed liquid from the mixing unit,
A liquid mixing discharge device comprising a gripper that controls the discharge amount of the needle.
In claim 8,
The needle is an elastically deformable tube,
The gripper is a liquid mixing discharge device that contracts or expands the needle to control the discharge amount.
In claim 9,
The gripper is composed of a pair of needles moving in a radial direction of the needle.
delete In claim 1,
The oxygen supply unit,
A liquid mixing discharge device further comprising a supply pipe extending to the bottom of the first tank.
In claim 12,
An outlet is provided at the end of the supply pipe,
A liquid mixing discharge device, wherein the outlet has a tapered shape with an expanded diameter.
In claim 13,
A liquid mixing discharge device in which a plurality of through holes are formed in the outlet.
In claim 12,
The first tank further includes an impeller for increasing the amount of dissolved oxygen in the first liquid.
In claim 15,
The first tank is driven by a motor and further includes a shaft that rotates the impeller,
The impeller includes a first impeller installed at the lower end of the shaft and a second impeller installed at the middle of the shaft.
In claim 16,
The second impeller is installed to be movable along the shaft and moves according to the level of the first liquid stored in the first tank.
In claim 17,
The first impeller is formed with a smaller diameter than the second impeller.
The method of any one of claims 12 to 18,
The first tank is,
A pressure sensor that measures the internal pressure of the first tank,
A regulator and vent port that control the internal pressure of the first tank,
A liquid mixing and dispensing device further comprising a discharge port that supplies the first liquid stored in the first tank to the dispenser.

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