JP2000191092A - Liquid filling nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sufficient foaming preventive effect by forming a plurality of grooves which extend in the direction of a duct on the internal wall of a pipe. SOLUTION: This liquid filling nozzle 2 is made to face to the opening of a container 1, and positionally fixed, and a valve disc 10 is vertically moved by the driving section 8 of a valve device 7, and the valve disc 10 is lifted from a valve seat surface 9. Thus, a liquid which is guided into the nozzle main body 4 from a liquid feeding port 3 goes through a gap between the valve seat surface 9 and the valve disc 10, and is guided into the pipe 6 of the liquid filling nozzle 2, and is filled in the container 1 by jetting downward from the tip end of the pipe 6. At this time, by a plurality of grooves 11 in the pipe 6, the liquid column can be rectified, and the fluctuation amount (the amplitude in the rectangular direction to the jetting direction) can be suppressed. Also, a liquid detergent, and a detergent for household or the like are easy to foam by wrapping in air, and the foaming is maintained by an interfacial active agent, and this liquid filling nozzle is especially effective when being used for the filling of such a liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid filling nozzle used for filling a container with a liquid.

[0002]

2. Description of the Related Art In filling a bottle or bag with a liquid, a method of moving a filling nozzle into a container and following a rise in the liquid level or a method of causing the filling nozzle to follow the inner wall surface of the container in order to suppress foaming. There is. On the other hand, as for the method of filling by locating the nozzle at the opening of the container, a mesh (screen) member is used in a plurality of stages (JP-A-9-120).
No. 06) While foaming is prevented, the structure is complicated and a sufficient effect cannot be obtained.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid filling nozzle capable of obtaining a sufficient foaming prevention effect.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a liquid filling nozzle for filling a container with a liquid, the liquid filling nozzle including a downwardly opening tube, wherein a plurality of nozzles extending in a pipe direction are provided on an inner wall of the tube. Is formed.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
And FIG. 2 (enlarged sectional view taken along the line aa in FIG. 1).

A liquid filling nozzle 2 used for filling the container 1 with a liquid has a nozzle body 4 having a liquid supply port 3 on a side surface, and a straight nozzle connected to a tip side of the nozzle body 4 via a tapered portion 5. And a tube 6 which opens downward.

Further, a valve device 7 is provided for controlling the ejection of the liquid from the liquid filling nozzle 2.
Is provided with a pneumatic drive unit 8 and a valve element 10 disposed in the nozzle body 4 and facing a valve seat surface 9 formed by the inner surface of the tapered part 5.

Here, as a configuration according to the present invention,
A plurality of grooves (longitudinal grooves) 11 extending in the pipe direction are formed on the inner wall of the pipe 6 of the liquid filling nozzle 2 at equal intervals in the circumferential direction, but are not necessarily equal. Each of the grooves 11 is a triangular groove, and adjacent grooves form a saw-tooth shape continuously densely over the entire circumference.

A mesh member 12 made of a wire mesh of about 40 mesh is attached to the opening at the tip of the tube 6 so as to block the liquid flow path. The mesh member 12 does not necessarily need to be attached, but the attachment increases the foaming prevention effect.

[0010] The liquid filling nozzle 2 faces the opening of the container 1 and is fixed in position. The valve 8 is moved upward by the drive unit 8 of the valve device 7 and floated from the valve seat surface 9. This allows
The liquid introduced from the liquid supply port 3 into the nozzle body 4 is introduced into the tube 6 of the liquid filling nozzle 2 through the gap between the valve seat surface 9 and the valve body 10 and jets downward from the tip of the tube 6. Container 1
Is filled in.

At this time, the plurality of grooves 11 in the pipe 6
Rectification of liquid column and fluctuation amount (amplitude in direction perpendicular to jetting direction)
And the amount of foam can be reduced.
Liquid detergents, household detergents, and the like are easily bubbled by entraining air, and the surfactant maintains the foaming. Therefore, the liquid filling nozzle according to the present invention is used for filling such liquids. And the effect is particularly great.

[0012]

According to the present invention, the bubbling amount is reduced by rectifying the liquid column and suppressing the fluctuation amount by the plurality of grooves in the pipe.

By attaching a mesh member to the tip of the pipe, the effect of preventing foaming is further improved by a synergistic effect with the groove. Therefore, (1) improvement of productivity due to shortening of filling time, (2) simplification of liquid filling machine and filling section, (3)
The effect is obtained that the filling nozzle of the existing equipment can be replaced at low cost.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view taken along the line aa in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Liquid filling nozzle 3 Liquid supply port 4 Nozzle main body 5 Taper part 6 Pipe 7 Valve device 8 Valve drive part 9 Valve seat surface 10 Valve body 11 Groove 12 Mesh member

Claims (1)

[Claims] 1. A liquid filling nozzle for filling a container with a liquid, comprising a pipe which opens downward, wherein a plurality of grooves extending in a pipe direction are formed on an inner wall of the pipe. Liquid filling nozzle.