JP2585247Y2 - Liquid metering nozzle - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling nozzle used to fill a container with a high-viscosity liquid, for example, food such as curry roux.

[0002]

2. Description of the Related Art As a filling nozzle of this kind, a cylindrical nozzle body having a suction port through which a filling liquid is forcibly fed in a fixed amount at a middle height of a peripheral wall and having a lower end opening of the peripheral wall as a discharge port. And a filling liquid extruding rod slidably fitted in the nozzle body so as to open and close the suction port.

[0003]

When the liquid is filled by the above-mentioned nozzle, at the end of one cycle of filling, the filling liquid in the nozzle body is entirely extruded by the rod, but a part of the extruded filling liquid is formed by the rod. And may remain there.

There is no problem if the remaining filling liquid remains as it is until the next filling cycle starts, but it may drop carelessly. When the dropped filling liquid adheres to the sealing surface of the container, there is a problem that poor sealing is generated, and when the filling liquid adheres to the container transport holder or the like, the sanitary property is reduced.

[0005] An object of the present invention is to provide a liquid filling nozzle which solves the above problems.

[0006]

The liquid metering filling nozzle according to the present invention has a suction port through which the filling liquid is forcibly fed by a fixed amount at a middle height of the peripheral wall, and a lower end opening of the peripheral wall is connected to the discharge port. Liquid filling nozzle comprising a cylindrical nozzle body, and a filling liquid pushing rod slidably fitted in the nozzle body so as to open and close the suction port .
Convex taper surface outside the lower end surface of the pad, concave shape inside
Each of the conical surfaces is provided, and the entire lower end surface of the rod is subjected to a water-phobic treatment.

[0007]

[Function] The liquid metering filling nozzle according to the present invention has a lock
Since the lower end surface of the rod has been subjected to hydrophobic treatment,
It is possible to prevent the filling liquid from adhering to the end face, and if
A small amount of the filling liquid adheres and remains on the lower end of the rod.
However, the remaining filling liquid is guided to the convex tapered surface and
Do not fall into the conical surface, accumulate there and fall
No.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The filling device includes a filling liquid tank 12 disposed above a container conveyor 11, a vertical filling pipe 13 having an upper end connected to the bottom wall of the tank 12, and an upper part of the filling pipe 13. A horizontal check cylinder 17 with a filling liquid coagulation prevention jacket 16 which is provided orthogonal to and has a built-in piston 15 with a penetrating fluid passage 14, and a piston 18 , A movable filling tube 22 with a filling liquid coagulation preventing jacket 21 suspended swingably from the lower end of the filling tube 13, and attached to the lower end of the filling tube 22. Filling nozzle 23.

At the lower end of the filling tube 13, a horizontal columnar filling tube suspension member 24 is provided. The suspension member 24 is formed with a filling liquid communication passage 25 that opens leftward so that one end is connected to the filling tube 13 and that opens the other end downward. Communication passage 25
The horizontal rotation cylinder is attached to the suspension member 24 so as to cover the downward opening.
26 is fitted, and the upper end of the filling tube 22 is connected to this.

The filling nozzle 23 has a suction port 31 connected to the lower end of the filling pipe 22 at the middle of the height of the peripheral wall, and a cylindrical nozzle body 33 having a discharge port 32 at the lower end opening of the peripheral wall;
Filling liquid extruding rod 34 slidably fitted in 33
And

At the upper end of the nozzle body 33, a fluid pressure cylinder 36 is connected to a piston rod 37 via a yoke 35.
It is installed downward so that it can penetrate 35.
The upper end of the filling liquid pushing rod 34 projects upward from the nozzle body 33, and a piston rod 37 is connected to the upward projecting part.

As shown in detail in FIG. 2, a convex tapered surface 41 is provided outside the lower end surface of the filling liquid pushing rod 34, and a concave conical surface 42 is provided inside the convex tapered surface 41. An annular flat surface 43 is provided at the boundary between the tapered surface 41 and the conical surface 42. The Teflon layer 44 is formed on all of the tapered surface 41, the conical surface 42, and the flat surface 43.

FIG. 1 shows that the check piston 15 is at the left limit, the check cylinder 17 is open, the metering piston 18 is at the right limit, the filling liquid push rod 34 is at the lower limit, and the suction port 31 and the discharge port
32 shows a closed state. When the fixed amount piston 18 is moved leftward from this state, the filling liquid flows into the filling pipe 13 from the tank 12. When the metering piston 18 reaches the left end, the check piston 15 is moved to the right to close the check cylinder 17, the filling liquid push rod 34 is raised, and the suction port 31 and the discharge port 32 are opened.
In this way, when the fixed amount piston 18 is moved to the right, the filling liquid is forcibly fed from the filling pipe 13 through the suction port 31 to the nozzle 23, and the fed filling liquid is discharged from the discharge port 32, and is moved downward. The loaded container C is filled. When the filling liquid is discharged from the discharge port 32, if the nozzle 23 is swung within a predetermined range, the filling liquid is filled so as not to be piled up in the container C but to be flat. When the fixed amount piston 18 reaches the right limit, the feeding from the filling tube 13 is stopped. Then, the filling liquid extruding rod 34 is lowered to extrude the filling liquid in the nozzle 23 from the nozzle 23. Filling liquid extrusion rod 34
Reaches the lower limit, one cycle of the filling operation is completed.
The Teflon layer 44 is formed by coating the lower end surface of the filling liquid extruding rod 34 with Teflon. Teflon has hydrophobicity. Therefore, since the filling liquid is repelled even if it tries to adhere to the lower end face of the rod 34, the filling liquid does not adhere to the lower end face.

In the above, a chromium plating layer (not shown) is formed on the side surface of the filling liquid extruding rod 34.
Instead, a Teflon layer may be formed.

[0016]

[Effect of the invention] According to the invention, the lower end surface of the rod is sparse.
Since water treatment has been applied, the filling liquid
Can prevent sticking and if only a small amount of filling
Even if the liquid adheres to the lower end surface of the rod and remains,
Filling liquid is guided to the convex tapered surface and enters the concave conical surface
However, since there is no accumulation and no dropping, there is a problem due to the inadvertent dropping of the filler liquid adhering to the rod. When it occurs and adheres to the container transport holder, the problem of lowering the sanitary property is solved.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a filling device including a filling nozzle according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view showing a lower end portion of a filling nozzle.

[Explanation of symbols]

 31 Suction port 32 Discharge port 33 Nozzle body 34 Rod 44 Teflon layer

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 4-29904 (JP, U) JP-A 1-76500 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) B65B 37/00-37/20 B65B 39/00-39/14 B67C 3/00-11/06

Claims (1)

(57) [Scope of request for utility model registration] 1. A cylindrical nozzle body 33 having a suction port 31 into which the filling liquid is forcibly fed by a fixed amount at a middle height of the peripheral wall and having a lower end opening of the peripheral wall as a discharge port 32; A liquid extruding rod 34 slidably fitted in a nozzle body 33 so as to be able to open and close the liquid fixed amount filling nozzle . Inside that
Are provided with concave conical surfaces 42, respectively, and the lower end surface of the rod 34
Characterized in that a hydrophobic treatment 44 is applied to the entirety of the nozzle.