JPH09281370A - Defoaming method for jelly packing device and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively remove foam at the time of supplying and packing jelly. SOLUTION: This device has a heating means 2 which is disposed near a supplying tank 1 on a communicating path 10A for communicating the supplying tank 1 and a force feeding means 12 and heats the jelly 16 prior to feeding of the jelly 16 from the force feeding means 12 to the supplying tank 1 and a developing tray 3 which has a shape shallow in the bottom and temporarily stores the jelly 16 sent from the communicating path 10A into the supplying tank 1. The device is so constituted that the foam which floats on the jelly liquid surface of the developing tray 3 and accumulates is removed by a defoaming pump 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jelly filling device for adhering and filling a running wire material with a jelly-like compound, and more particularly to a defoaming method and a defoaming method for a jelly filling device for removing bubbles mixed in the filling jelly. It relates to a foam device.

[0002]

2. Description of the Related Art This jelly filling device has, for example, FIG.
As shown in FIG. 1, a storage unit 10 for storing jelly, a supply tank 1 which is kept airtight and communicates the communication pipe with the storage unit 10 via 10 A, and a storage unit 10 provided in a part of the communication pipe 10 A Pump 12 that feeds the jelly 16 of the above into the supply tank 1, an extruder 13 that communicates with the bottom of the supply tank 1 via the communication pipe 1A, and an inside of the supply tank 1 provided in a part of the communication pipe 1A to the extruder 13. It is known that a pump 15 for sending out the jelly 16 is provided, and the head 14 provided in the extruder 13 fills the jelly 16 around the cable 18 in which the optical fiber wires 17 are twisted.

[0003]

However, in such a jelly filling device, bubbles are mixed in the jelly 16 fed from the storage section 10 to the supply tank 1, for example.
The foam may fill the cable 18 with the jelly. In this case, for example, a change in the temperature of the jelly causes an expansion phenomenon of the air inside the bubbles to form a hump-like substance, which causes various troubles.

Therefore, in such a jelly filling device,
For example, as shown in FIG. 3, the communication pipe 1 is provided on the ceiling of the supply tank 1.
A defoaming (vacuum) pump 19 is provided via 9A, and the defoaming pump 19 depressurizes the inside of the supply tank 1 to suck or remove bubbles in the jelly 16 for removal.

Even with this jelly filling device, even when the bubbles are stopped near the bottom of the supply tank filled with the jelly solution, even if the inside of the tank is depressurized by the defoaming pump, it will reach deep inside the jelly solution. In some cases, it may not be possible to remove all the bubbles well because the decompression effect is difficult to reach.

In view of the above-mentioned circumstances, it is an object of the present invention to provide a defoaming method and device for a jelly filling device that can effectively remove bubbles from the jelly when supplying the jelly. It is a thing.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, the means according to the first aspect of the invention is a pumping means for pumping jelly to a sealed supply tank, and a means for storing the jelly. In a jelly filling device equipped with a defoaming pump for removing bubbles mixed in the jelly, when the jelly is sent from the pressure feeding means to the supply tank, the jelly is heated to change the consistency, and the supply tank The defoaming pump removes the bubbles floating on the liquid surface of a development tray with a shallow bottom provided inside.

The means taken by the invention according to claim 2 is
It was equipped with a pumping means that communicates with the closed supply tank and pressure-feeds the jelly to this supply tank, and a defoaming pump that communicates with the upper part of the supply tank and removes the bubbles mixed in the jelly stored in this supply tank. In the jelly filling device, a heating means that is provided in a communication passage that communicates the supply tank and the pressure feeding means, and that heats the jelly to change the viscosity of the jelly, and has a shallow bottom shape is fed from the communication passage. And a developing tray that temporarily stores the jelly to be stored in the supply tank, and the bubbles floating on the liquid surface of the developing tray are removed by a defoaming pump.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In this embodiment, the same parts as those in the conventional example are designated by the same reference numerals to avoid redundant description. FIG. 1 is a main part configuration diagram showing a jelly filling device provided with a defoaming device according to this embodiment.
In the jelly filling device of this embodiment, a hollow cylindrical heater which is a heating means for the jelly 16 passing near the supply tank 1 and is a part of the communication pipe 10A connecting the storage tank (not shown) to the supply tank 1. In addition to providing the attached pipe 2, a development tray 3 having a shape that is shallowly expanded in the horizontal direction and communicating with the heater attached pipe 2 is provided inside the supply tank 1. Since the supply tank 1 is in an airtight state, the internal air pressure is controlled by the degassing pump 1
It is possible to reduce the pressure (high vacuum state) at 9.

The heater-equipped pipe 2 lowers the viscosity (viscosity) of the jelly 16 and causes bubbles contained in the jelly 16 passing through this pipe to float above the jelly liquid surface, so that the jelly passing therethrough is heated. It is supposed to do. That is, as shown in FIG. 2, the heater-equipped pipe 2 includes a pipe portion 22 formed of a heat insulating material 21 in the shape of a hollow cylinder,
It is composed of a nichrome wire 23 embedded in the pipe portion 22, and the nichrome wire 23 heats the nichrome wire 23 to an appropriate temperature.

The development tray 3 is installed in a low-pressure space above the jelly liquid level of the supply tank 1 (the liquid level is preferably kept constantly at a constant level by an appropriate means). In the spreading dish 3, the physical properties of the jelly 16 whose viscosity decreases when heated are used to force the bubbles 16A to rise near the liquid surface of the jelly solution having a low viscosity, and to keep this. It can be easily removed by the defoaming pump 19.

The defoaming pump 19 lowers the air pressure in the supply tank 1 (at least lower than the air pressure in the air bubbles), so that the air bubbles 106A floating near the jelly liquid level in the development tray 3 are negatively pressured. It is designed to be sucked in and removed from the surface of the jelly solution. The bubbles 106A sucked and separated from the jelly liquid surface can be ruptured and removed by a pressure action, that is, by utilizing the pressure difference in the depressurized space in the supply tank 1.

Next, the defoaming method according to the present invention will be described using the above embodiment. For example, it is assumed that air bubbles 16A are mixed in the jelly 16 when the pump 12 sends the jelly 16 to the supply tank 1. In this case, pump 12 and supply tank 1
Jerry 16 by the heater 2 provided in the communication pipe 1 between
When heated, the jelly 16 has a low viscosity due to the physical property that the viscosity decreases in proportion to the temperature, and the mixed bubbles 16A easily float from the inside of the jelly to the vicinity of the liquid surface. At the same time, the air inside the bubbles 16A is also heated and expanded.

Bubbles 16A which have been sent out together with the jelly 16 to the developing tray 3 through the communicating pipe 1 are temporarily stored in the developing tray 3, but the developing tray 3
Since the bottom has a shallow bottom and spreads widely in the horizontal direction, the bubbles 16A mixed in the jelly 16 sent here stay at the upper part of the liquid surface of this jelly solution (all the expanded bubbles because the bottom is shallow). It will stay near the liquid surface).

A part of the bubbles 16A in such a state is sucked by the defoaming pump 19, so that they can be easily pulled up from the liquid surface and removed. Further, the bubbles 16A that are not pulled up and float up and remain on the liquid surface are inside (in a high pressure state).
Due to the large pressure difference between the air and the space above the liquid surface (in a low pressure state), the internal air further expands in the supply tank 1 and eventually bursts. As a result, only the jelly 16 from which the bubbles 16A have been removed is supplied to the extruder 13 side.

[0016]

As described above, according to the present invention, the heating means is provided in the vicinity of the supply tank of the communication passage that connects the supply tank and the pressure feeding means, and the jerry is fed from the pressure feeding means to the supply tank. The jelly is heated in advance, and by virtue of this heating action, the viscosity is lowered and the air bubbles mixed in the jelly are forcibly floated and stayed on the jelly liquid surface of the expansion dish and removed by the defoaming pump. In other words, since the bubbles can be effectively removed by utilizing the pressure difference, it is possible to provide the defoaming method and device having excellent reliability and economy.

[Brief description of drawings]

FIG. 1 is a main part configuration diagram showing a jelly filling device provided with a defoaming device according to the present invention.

FIG. 2 is a cross-sectional view showing a development tray of the same device.

FIG. 3 is a schematic configuration diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supply tank 2 Pipe with a heater (heating means) 3 Development tray 10A Communication passage 12 Pressure feeding means 16 Jerry 19 Defoaming pump

Claims (2)

[Claims] 1. A pumping means (12) for pumping a jelly (16) to a closed supply tank (1), and defoaming for removing bubbles mixed in the jerry (16) stored in the supply tank (1). In a jelly filling device equipped with a pump (19), when the jelly (16) is sent from the pressure feeding means (12) to the supply tank (1), the jelly (16) is heated to change the viscosity. , A shallow development tray (3) provided in the supply tank (1)
A defoaming method for a jelly filling device, characterized in that the foam floating on the liquid surface of (1) is removed by the defoaming pump (19). 2. Communication with a closed supply tank (1),
The feeding means (12) for feeding the jelly (16) to the supply tank (1) communicates with the upper part of the supply tank (1) and the jelly (16) stored in the supply tank (1).
In a jelly filling device provided with a defoaming pump (19) for removing bubbles mixed in the above, the jelly (16) is provided in a communication passage (10A) communicating the supply tank (1) and the pressure feeding means (12). ) Is heated to change the jelly consistency (2)
And a development tray (3) having a shallow bottom shape and temporarily storing the jelly (16) fed from the communication passage (10A) in the supply tank (1), the development tray (3) A defoaming device for a jelly filling device, wherein the defoaming pump (19) removes the bubbles floating on the liquid surface.