JPH0318321Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a filling nozzle suitable for filling a container such as a tube with toothpaste fluid.

Conventionally, when filling fluids such as liquids, creams, and toothpaste into containers such as tubes using a filling nozzle, air is injected into the filling nozzle toward the tip of the nozzle to improve fluid drainage. By incorporating an air blower and operating the air blower each time filling is completed, fluid remaining attached to the vicinity of the nozzle tip is blown away.

However, when a filling nozzle like the one described above is used, the air jet causes the fluid that has already been filled in the container and the fluid that remains attached near the nozzle tip to scatter, causing the sealed portion of the container (thermal bonding or ), and if it adheres to the seal part,
There have been problems with tubes and other containers that tend to produce defective products due to poor sealing or dirt on the sealing portion.

The present invention was developed in view of the above-mentioned problems, and it is effective in draining the fluid at the end of filling, and prevents fluid from scattering to the sealing part of the container such as a tube, and prevents the fluid from scattering due to poor sealing of the container or dirt on the sealing part. The present invention provides a filling nozzle that can prevent the production of defective products.

That is, the filling nozzle of the present invention is a filling nozzle that discharges fluid from a pore at the lower end of a cylindrical body and fills the fluid into a container such as a tube. A valve support rod is inserted into the valve support rod which is urged upward by a biasing member such as the above, and when fluid is supplied to the cylinder body, the closing valve resists the biasing force by pressurizing the fluid. is pressed downward to open the pores of the cylindrical body, and when fluid is not supplied to the cylindrical body, the pores are pressed from below by the biasing force to close the pores. and the shape of the circumferential surface of the pore and the blocking valve is a truncated conical shape,
The size of the lower periphery of the pore is slightly larger than the lower periphery of the occlusion valve, and the angle of the periphery of the pore is larger than the angle of the periphery of the occlusion valve. It is characterized by:

Hereinafter, an embodiment of the filling nozzle of the present invention shown in the drawings will be described.

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention together with its usage mode. In the figure, 1 is a cylinder, 2 is a pore drilled at the lower end of the cylinder, and the filling nozzle of the present invention is as follows: A hose (not shown) is attached to the top of the cylinder 1.
A fluid 3 such as liquid, cream, toothpaste, etc. (not shown in FIG. 1, see FIGS. 2 and 3) is pumped into the cylinder 1 from a filling pump (not shown) communicated through the cylindrical body 1. By supplying fluid 3 from pore 2 to
The fluid 3 is filled into a container 4 such as a tube by discharging the fluid 3.

In the filling nozzle of the present invention, a valve support rod 7 having a closing valve 5 at its lower end is fitted into the cylinder 1 and is urged upward by an urging member 6 made of a spring. When the fluid 3 is supplied to the cylinder body 1, as shown in FIG. When the valve is opened and the fluid 3 is not supplied to the cylinder 1, the biasing force causes the closing valve 5 to come into pressure contact with the pore 2 from below to close the pore 2. .

To describe the embodiment in more detail, the valve support rod 7
is fitted into a guide pipe 8 coaxially fixed in the cylinder 1 via a plurality of ribs 11 so as to be slidable in the vertical direction. A spring, which is a biasing member 6 that biases the valve support rod 7 upward, is located between a receiving portion 9 protruding from the upper end of the valve supporting rod 7 and a receiving portion 10 at the lower part of the inner surface of the guide pipe 8. It is attached surrounding the valve support rod 7. Further, the blockage valve 5 is screwed into the valve support rod 7 from below, and the circumferential surfaces of the pore 2 and the blockage valve 5 are both shaped like a truncated conical surface, and the bottom of the pore 2 The size of the circumferential edge is made slightly larger than the size of the lower circumferential edge of the blockage valve 5, and the angle of the circumferential side of the pore 2 is made larger than the angle of the circumferential side of the blockage valve 5. Furthermore, a truncated conical notch 12 is formed at the lower end of the closure valve 5.

Next, an example of how the filling nozzle of the present invention having the above-mentioned structure is used will be explained with reference to the drawings.

In the illustrated usage mode, first, prior to filling the fluid 3, the container 4 is moved by an elevating mechanism (not shown).
While the device is held in an inverted state, it is raised from the position shown in FIG. 1 by the elevating mechanism. At this point, the blocking valve 5 is activated by the biasing member 6 as shown in FIG.
is pressed from below the pore 2 by the urging force of the pore 2.
is blocked.

Next, when the container 4 rises to a predetermined position as shown in FIG. 2, the fluid 3 is pumped into the cylinder 1 from the aforementioned filling pump. As a result, the fluid 3 inside the cylinder 1
Since the pressure of fluid 3 is increased,
The blocking valve 5 is pressed downward against the biasing member 6 to open the pore 2, and as a result, the fluid 3 is discharged from between the valve support rod 7 and the pore 2, and the fluid flows into the container 4. 3
Filling begins.

As filling begins, the container 4 starts to descend, and as a result, the container 4 is uniformly filled with fluid 3 sequentially from the bottom (top of the figure), and a predetermined amount of fluid 3 is pumped into the cylinder 1. At this point, the above-mentioned filling pump stops pumping the fluid 3.

When the pressure feeding of the fluid 3 stops, the fluid 3 inside the cylinder body 1
As the pressure decreases, the closing valve 5, which had been pressed downward by the pressure of the fluid 3 as described above, rises due to the urging force of the urging member 6, as shown in FIG.
It is pressed against the pore 2 from below to close the pore 2. When the closure valve 5 is pressed against the pore 2, the fluid 3 is cut between the pore 2 and the circumferential surface of the closure valve 5, and the cut fluid 3 is transferred to the tip of the nozzle, that is, the pore 2 and the circumferential surface of the closure valve 5. All of them fall into the container 4 without remaining attached to the blockage valve 5. Therefore, according to the filling nozzle of the present invention, there is no room for the fluid 3 to scatter to the sealed portion (the upper part in the drawing) of the container 4;
The occurrence of defective products due to poor sealing of the container 4 such as a tube or dirt on the sealing portion is completely prevented.

As described above, according to the filling nozzle of the present invention, when fluid is supplied to the cylindrical body, the pressure of the fluid pushes the closing valve downward against the biasing force of the biasing member, thereby causing the cylindrical body to close. When the pore is opened and fluid is not supplied to the outer cylinder, the closing valve is brought into pressure contact with the pore from below by the urging force to close the pore, and the pore is further closed. The circumferential side surface shape is a truncated conical shape, the size of the lower circumferential edge of the pore is slightly larger than the lower circumferential edge of the occluding valve, and the angle of the circumferential side surface of the pore is set to the occlusion valve. Since the angle is larger than the angle of the circumferential side of the valve, the pores of the cylinder can be reliably closed by the closing valve and the fluid can be cut off every time a container such as a tube is filled with fluid. In addition, when the pores are closed by the closing valve, no fluid is splashed to the sealing part of the container, so it is possible to prevent the occurrence of defective products due to poor sealing of the container or dirt on the sealing part. The effect is produced.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the invention before the filling starts, FIG. 2 is a longitudinal sectional view during filling, and FIG. 3 is a longitudinal sectional view when filling is completed. 1... Cylindrical body, 2... Pore, 3... Fluid, 4...
Container, 5... Closure valve, 6... Urging member, 7... Valve support rod, 8... Guide pipe.

Claims (1)

[Claims for Utility Model Registration] (1) A filling nozzle that discharges fluid from a pore at the lower end of a cylindrical body and fills the fluid into a container such as a tube, which has a closing valve at the lower end within the cylindrical body. The above-mentioned shutoff valve is formed by inserting a valve support rod that is urged upward by a biasing member such as a spring, and
When fluid is supplied to the cylindrical body, the fluid is pressed downward against the urging force to open the pores of the cylindrical body, and when fluid is not supplied to the cylindrical body, the pores of the cylindrical body are opened. , the pore is pressed downwardly by the biasing force to close the pore, and the peripheral surface of the pore and the closing valve has a truncated conical shape; The size of the lower periphery of the pore is slightly larger than the lower periphery of the occlusion valve, and the angle of the periphery of the pore is larger than the angle of the periphery of the occlusion valve. filling nozzle. (2) The filling nozzle according to claim 1, wherein the valve support rod is slidably inserted into a guide pipe coaxially fixed within the cylinder.