KR20060013473A - Liquid filling apparatus - Google Patents

Abstract

The present invention relates to a liquid filling device for filling a liquid into a container, comprising: a container holder for holding a container; A container holder elevating device for elevating the container holder; A nozzle tube for controlling the flow of liquid by a discharge valve controlled by a control unit so that the liquid is metered into the container; And a liquid supply device for supplying a fixed amount of liquid to the nozzle tube, wherein the liquid supply device comprises: a hopper for storing a large amount of liquid; A cylinder formed on a bottom surface of the hopper and connected to the nozzle tube; A shutoff valve for regulating the connection between the nozzle tube and the cylinder or the hopper and the cylinder; A piston inserted into the cylinder to pressurize the liquid inside the cylinder to move the liquid into the nozzle tube and to suck the liquid of the hopper into the cylinder when the cylinder moves backward; And a piston forward and backward device for advancing and retracting the piston using a piston forward and backward motor. The control device is configured to apply a control signal to the container holder elevating motor and the piston forward and backward motor for precise control. It is characterized in that it comprises a, it is possible to precisely and automatically control the rising speed of the liquid surface, the rising speed of the nozzle tube and the discharge flow rate of the liquid precisely by the motor to prevent the bubbles are generated in the liquid, the rapid liquid filling It is possible to have an effect that can greatly improve the productivity.

Description

Liquid filling apparatus

1 is a perspective view showing a liquid filling apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a partial cutaway front view of FIG. 1. FIG.

3 is a partial cutaway side view of FIG. 1.

Figure 4 is a side view showing a cylinder for opening and closing the piston forward and backward and shutoff valve of the hopper and the liquid supply of Figure 1;

FIG. 5 is a plan view illustrating a cylinder for opening and closing a piston forward and backward device and a shutoff valve of the liquid supply device of FIG. 4.

Fig. 6 is a partially cutaway front view showing the open state of the hopper lid.

It is a side view which shows the container rising standby state of the container holder lifting device of FIG.

FIG. 8 is a side view illustrating the container lowering liquid injection state of FIG. 7. FIG.

TECHNICAL FIELD The present invention relates to a liquid filling device, and more particularly, to a liquid filling, which allows storage of various liquid fillings in containers, ranging from low-viscosity volatile liquids, chemicals, and reagents to high-viscosity adhesives, greases, and foods. Relates to a device.

In general, in order to store liquid for a long time inside the container, as well as to sterilize the liquid, to remove the foreign matter, or to remove the bubbles in the liquid, a wide variety of containers and liquid processing is essential.

In particular, even if the liquid inside the bubble is completely removed, the liquid flows in the container in such a way that the flow of the liquid is not constant, the air is mixed with the air during the drop, or bubbles are contained in the liquid due to the viscosity. do.

Therefore, in order to remove the bubbles generated during the liquid filling process, various types of manual work have been performed, such as injecting the liquid directly by hand in accordance with the rising speed of the liquid rising into the container.

However, despite the manual work of the skilled person, due to the problem of bubbles generated during the liquid filling process during the packaging operation of the container, since the bubbles contained in the container may cause serious defects such as hardening of the liquid when stored for a long time. Of course, the liquid filling process has a problem that takes a lot of time and highly skilled personnel.

In order to solve these problems, the conventional automated liquid filling device uses a hydraulic cylinder or a pneumatic cylinder to squeeze the liquid into a container. However, when the cylinder is used as an actuator, the relative speed of the container or the injection tube and the injection of the liquid are used. There is a problem that it is difficult to precisely control the speed by the pressure of the working fluid.

In addition, since the working fluid inside the cylinder is elastic, it is impossible to precisely control the pressure of the working fluid inside the cylinder with a valve, and in particular, it is very difficult to contain liquid in a narrow and long container. There was an issue that was difficult to fill the liquid with.

An object of the present invention for solving the above problems is to precisely and automatically control the rising speed of the liquid surface, the rising speed of the nozzle tube and the discharge flow rate of the liquid by the motor so as to prevent bubbles from occurring in the liquid It is possible to provide a liquid filling device capable of quick liquid filling.

In order to achieve the above object, the liquid filling apparatus of the present invention comprises: a container holder for fixing a container in a liquid filling apparatus for filling a liquid into a container; A container holder elevating device for elevating the container holder by using a container holder elevating motor; A nozzle is formed so that a portion can be inserted into the interior of the container lifted by the container holder lifting device, the flow of liquid is interrupted by a discharge valve controlled by a control unit so that the liquid can be injected into the container tube; And a liquid supply device for supplying a fixed amount of liquid to the nozzle tube, wherein the liquid supply device comprises: a hopper for storing a large amount of liquid; A cylinder formed on a bottom surface of the hopper and connected to the nozzle tube; A shut-off valve disposed between the nozzle tube, the cylinder, and the hopper and intermittently intercepting the connection between the nozzle tube and the cylinder or the hopper and the cylinder; It is formed in a shape corresponding to the shape of the cylinder is inserted into the cylinder, when the nozzle tube and the cylinder is connected by the shut-off valve, the liquid inside the cylinder to pressurize the liquid inside the cylinder at the time of advancing A piston for supplying and sucking the liquid of the hopper into the cylinder when the cylinder is connected when the hopper and the cylinder are connected by the shutoff valve; And a piston forward and backward device for advancing and retracting the piston using a piston forward and backward motor. The control device is configured to apply a control signal to the container holder elevating motor and the piston forward and backward motor for precise control. It is characterized by comprising.

In addition, according to the present invention, the container holder elevating device, the container holder is installed, the elevating plate guided by the elevating guide; A screw rod vertically formed by screwing one side of the elevating plate; A driven pulley installed at one end of the screw rod; A driving pulley spaced apart from the driven pulley; A timing belt connecting the driven pulley and the driving pulley to each other; And a container holder elevating motor for rotating the drive pulley.

In addition, according to the present invention, the piston forward and backward device, the connecting rod is connected to the piston is installed, the forward and backward movable table guided back and forth by the guide rod; A screw rod formed horizontally by screwing one side of the forward and backward movable table; And a piston forward and backward motor connected to one end of the screw rod.

In addition, according to the present invention, the shutoff valve may be provided with a cylinder for rotating the valve knob by using a piston that is connected to the valve knob to move forward and backward.

In addition, according to the present invention, the control device, the container lowering speed control signal to the container holder lifting motor to raise the container in the lowered state in accordance with the rising speed of the liquid level rising inside the container; It is possible to apply the liquid discharge flow rate control signal to the piston forward and backward motors.

 On the other hand, the hopper is provided with a lid opening and closing device consisting of a cylinder for opening the hopper lid by using a piston, the vacuum pressure to form a vacuum in the hopper inside the hopper lid closed state by the lid opening and closing device It is preferable that a forming apparatus is provided.

Hereinafter, a liquid filling apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the drawings.

First, as shown in Figures 1, 2 and 3, the liquid filling apparatus according to a preferred embodiment of the present invention, a device for filling the liquid (1) inside the container 2, the container holder ( 3), the container holder elevating device 10, the nozzle pipe 20, and the liquid supply device 30.

Here, the container holder 3 is to fix the container 2 so that the container 2 does not shake when the liquid 1 is injected. The container holder 3 corresponds to the shape of the container 2 so that the container 2 can be raised and raised. It is to be produced in the shape.

In addition, the container holder elevating device 10 is for raising and lowering the container holder 3 by using the container holder elevating motor 17, the container holder 3 is provided, the elevating guide ( 11) the elevating plate 12 guided by the screw, the screw rod 13 is formed vertically through the one side of the elevating plate 12, the driven pulley 14 is installed on one end of the screw rod (13) , A drive pulley 15 spaced apart from the driven pulley 14, a timing belt 16 connecting the driven pulley 14 and the drive pulley 15 to each other, and a container for rotating the drive pulley 15. It comprises a holder raising and lowering motor 17.

Therefore, as shown in FIG. 7, when the worker fixes the container 2 to the container holder 3, the container holder lifting motor 17 rotates forward to stand by with the container holder 3 raised. As shown in FIG. 8, the container holder elevating motor 17 is rotated in reverse so that the container holder 3 is lowered and at the same time the liquid supply device 30 to be described later through the nozzle tube 20. By the liquid 1 can be injected into the container (2).

On the other hand, the nozzle tube 20 of the present invention is formed in the shape of a thick and long injection needle so that a portion can be inserted into the interior of the container 2 elevated by the container holder elevating device 10, the container ( 2) The flow of the liquid 1 is interrupted by the discharge valve 21 controlled by the control unit so that the liquid 1 can be quantified therein.

Here, the discharge valve 21 may be applied to various types of valves such as various solenoid valves or hydraulic valves.

On the other hand, the liquid supply device 30 of the present invention, as shown in Figs. 4 and 5, to supply the quantitative liquid 1 to the nozzle tube 20, the hopper 31, the cylinder ( 32), the shutoff valve 33, the piston 34 and the piston is configured to include the forward and backward device (35).

Here, the hopper 31 is provided above the nozzle tube 20 to store a large amount of liquid 1, and the cylinder 32 is formed on the bottom surface of the hopper 31. The nozzle valve 20 is connected to the nozzle tube 20, and the shutoff valve 33 is provided between the nozzle tube 20, the cylinder 32, and the hopper 31, and the nozzle tube 20 and the cylinder 32. Or a two-way valve capable of interrupting the connection between the hopper 31 and the cylinder 32.

In particular, the piston 34 of the present invention is formed in a shape corresponding to the shape of the cylinder 32 is inserted into the cylinder 32, it is possible to move forward and backward by the piston forward and backward device 35. As a configuration, as shown in FIG. 8, when the nozzle tube 20 and the cylinder 32 are connected by the shutoff valve 33, the liquid 1 inside the cylinder 32 is pressurized when moving forward. When the liquid 1 inside the cylinder 32 is supplied to the nozzle tube 20, and as shown in FIG. 7, the hopper 31 and the cylinder 32 are connected by the shutoff valve 33. In the reverse direction, the liquid 1 of the hopper 31 is sucked into the cylinder 32 for supplying the liquid 1 of the next container 2.

Here, the piston forward and backward device 35 is provided with a connecting rod 351 connected to the piston 34, the forward and backward movable table 353 guided forward and backward by the guide rod 352, the forward and backward movement A screw rod 354 is formed horizontally through the one side of the base 353 and a piston forward and backward motor 355 connected to one end of the screw rod 354.

In addition, the control device 40 is a liquid that rises inside the container 2 by precisely controlling a control signal by applying a control signal to the container holder elevating motor 17 and the piston forward and backward motors 355. 1) A vessel raising and lowering speed control signal is applied to the vessel holder raising and lowering motor 17 so that the vessel 2 in the lowered state can rise in accordance with the rising speed of the water surface, and the piston forward and backward motor 355 To the liquid discharge flow rate control signal.

In addition, as shown in FIG. 4, the shutoff valve 33 includes a cylinder 37 which rotates the valve knob 36 using a piston 34 which is connected to the valve knob 36 and moves forward and backward. Can be installed.

On the other hand, as shown in Figure 4, the hopper 31, the lid opening and closing device 53 made of a cylinder 54 for opening the hopper lid 52 using the piston 51 is installed, the lid A vacuum pressure forming device (not shown) connected with a vacuum pipe is installed to open the hopper 31 in a state in which the hopper lid 52 is closed by the opening and closing device 53. The stirrer 56 which mixes the liquid 1 while rotating by 55 is provided.

Therefore, when describing the operation of the liquid filling apparatus according to a preferred embodiment of the present invention, the operator first opens the hopper lid 52 of the hopper 31, and then put the liquid 1 in the hopper 31 After closing the hopper lid 52 again, the inside of the hopper 31 is made into a vacuum state, and an air bubble or a foreign substance inside the liquid 1 is removed using the stirrer 56.

Subsequently, an operator fixes the container 2 to the container holder 3, and as shown in FIG. 7, the container 2 is lifted and awaited by the container holder lifting device 10. 8, the container 2 is lowered by the container holder elevating device 10 and at the same time the piston 34 is moved by the piston forward and backward device 35 of the liquid supply device 30. The liquid 1 inside the cylinder 32 may be supplied into the container 2 through the nozzle tube 20 while the () is advanced.

At this time, the nozzle tube 20 and the cylinder 32 are connected to each other by the shutoff valve 33 so that the liquid 1 inside the cylinder 32 is prevented from flowing back to the hopper 31, and the hopper The connection with 31 is interrupted.

Subsequently, when the filling of the liquid 1 inside the container 2 is finished, in order to continuously fill the next container 2 with the liquid 1 or to replenish the insufficient liquid 1 inside the cylinder 32, FIG. 7. As shown in FIG. 3, the piston 34 may be retracted by the piston forward and backward device 35 to suck the liquid 1 of the hopper 31 into the cylinder 32.

At this time, the nozzle tube 20 and the cylinder 32 are interrupted by the shutoff valve 33 to prevent the liquid 1 of the hopper 31 from leaking into the nozzle tube 20, and the hopper ( 31 and the cylinder 32 are connected to each other.

The present invention is not limited to the above-described embodiments, and of course, modifications may be made by those skilled in the art without departing from the spirit of the present invention.

For example, in the embodiment of the present invention, the position, form, and type of each component is limited, but in the field without departing from the technical spirit of the present invention, such as using a gear instead of a pulley or a linear motor instead of a screw rod. It is possible for a person with ordinary knowledge to make modifications and changes easily.

Therefore, the scope of the claims in the present invention will not be defined within the scope of the detailed description, but will be defined by the following claims and the technical spirit thereof.

As described above, according to the liquid filling apparatus of the present invention, the surface rising speed of the liquid, the rising speed of the nozzle tube, and the discharge flow rate of the liquid can be precisely and automatically controlled by the motor so as to prevent bubbles from occurring in the liquid. It is possible to have a rapid liquid filling and have an effect that can greatly improve productivity.

Claims (6)

In constructing a liquid filling device for filling a liquid into a container, A container holder for holding the container; A container holder elevating device for elevating the container holder by using a container holder elevating motor; A nozzle is formed so that a portion can be inserted into the interior of the container lifted by the container holder lifting device, the flow of liquid is interrupted by a discharge valve controlled by a control unit so that the liquid can be injected into the container tube; And It comprises a; liquid supply device for supplying a fixed amount of liquid to the nozzle tube, The liquid supply device, a hopper in which a large amount of liquid is stored; A cylinder formed on a bottom surface of the hopper and connected to the nozzle tube; A shutoff valve disposed between the nozzle tube, the cylinder, and the hopper and intermittently connecting the nozzle tube and the cylinder or the hopper and the cylinder; It is formed in a shape corresponding to the shape of the cylinder is inserted into the cylinder, when the nozzle tube and the cylinder is connected by the shut-off valve, the liquid inside the cylinder to pressurize the liquid inside the cylinder at the time of advancing A piston for supplying and sucking the liquid of the hopper into the cylinder when the cylinder is connected when the hopper and the cylinder are connected by the shutoff valve; And a piston forward and backward device configured to forward and backward the piston using a piston forward and backward motor. And a control device for precisely controlling the control signal by applying a control signal to the container holder elevating motor and the piston forward and backward motors. The method of claim 1, The container holder lifting device, A lifting plate provided with the container holder and guided by a lifting guide; A screw rod vertically formed by screwing one side of the elevating plate; A driven pulley installed at one end of the screw rod; A driving pulley spaced apart from the driven pulley; A timing belt connecting the driven pulley and the driving pulley to each other; And A vessel holder elevating motor for rotating the drive pulley; Liquid filling apparatus comprising a. The method of claim 1, The piston forward and backward device, A connecting rod connected to the piston is installed and moved forward and backward by a guide rod; A screw rod formed horizontally by screwing one side of the forward and backward movable table; And A piston forward and backward motor connected to one end of the screw rod; Liquid filling apparatus comprising a. The method of claim 1, The shutoff valve is connected to the valve knob, the liquid filling apparatus, characterized in that the cylinder for rotating the valve knob by using the piston to move forward and backward. The method of claim 1, The control device applies a container lifting speed control signal to the container holder lifting motor so that the container in the lowered state can rise in accordance with the rising speed of the liquid level rising inside the container, and the piston moves forward and backward. And a liquid discharge flow rate control signal is applied to the motor. The method of claim 1, The hopper is provided with a lid opening and closing device consisting of a cylinder for opening the hopper lid by using a piston, the vacuum pressure forming device to form a vacuum in the hopper inside the hopper lid closed state by the lid opening and closing device Is installed, the liquid filling device, characterized in that the agitator is installed to mix the liquid while rotating by the motor inside.

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