JPH0142555Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a liquid filling valve that is equipped with a degassing and gas filling nozzle and is easy to disassemble and clean.

[Prior art] When filling a container such as a bag with liquid, air inside the container that is removed by the filling material is sucked out, preventing foaming on the liquid surface and increasing the efficiency of the filling operation. It is known to fill the gap formed between the filler and the surface with an inert gas, thereby breaking contact between the filler and the air.

[Purpose] The present invention relates to a filling valve used in the liquid filling operation as described above, and its purpose is to provide a filling valve that has the following functions and effects. .

B. Easy to disassemble and clean for hygiene reasons.

(b) The gas remaining in the container is well degassed.

C. After filling, there is little dripping from the discharge port.

[Structure] The structure of the present invention for achieving the above object will be explained using FIG. 1 showing an embodiment. The degassing/gas filling nozzle 3 is removably fitted concentrically to the outer periphery of the nozzle through a gap 12 that acts as a nozzle to form a nozzle complex A, and the opening end of the discharge pipe 2 is extends outward from the opening of the gap 12 of the degassing/gas filling nozzle 3, and the nozzle 3 has an air suction port 7 that communicates with the gap 12 and can be switched to an inert gas filling port. At the same time, the base of the nozzle complex A is removably tightly fixed to the end of the valve body 1, which has a slidable plunger inside, by means of a clamp member 9, so that The filling supply port 6 to be opened communicates with the opening of the discharge pipe 2 to form a liquid supply channel, and the opening of the discharge pipe 2 can be opened and closed at its end by sliding the plunger 4. It is composed of

[Operation] Since the present invention has the above-described configuration, the open end of the discharge pipe 2, which is closed by the plunger 4, is inserted into the spout opening of the container to be filled with liquid, and the nozzle is opened. After bringing the end wall of 3 into contact with the mouth edge of the spouting port, the air in the container begins to be sucked out from the air suction port 7 through the gap 12, and at the same time, the closure of the discharge pipe by the plunger 4 is released and the air is drawn out from the supply port 6. Filling of the liquid into the container via the empty chamber 10 and the discharge pipe 2 begins.

Next, when a predetermined amount of filling is completed, the opening of the discharge pipe 2 is closed by moving the plunger 4, and the air suction port 7 is switched to an inert gas filling port.
Inert gas can be pumped into the container through the gap 12 of the nozzle 3.

In addition, when you want to clean the entire valve, release the clamp member 9, remove the nozzle complex A from the valve body 1, and then attach the nozzle complex A to the discharge pipe 2.
and nozzle 3, and on the other hand,
Assembly after cleaning can also be easily carried out by reversing the disassembly process.

[Example] An example of the present invention will be described below with reference to the drawings.

In the drawing, 1 is a valve body with a hollow chamber 10 inside, an open end formed at one end, and a flange protruding from the outer periphery of the open end to allow a clamp member 9 to easily hang therein. A compressed air actuated plunger 4 is slidably fitted into the valve body 1 in a mutually watertight manner. Opposite the open end of the chamber 10 is a feed port 6 for transferring the charge from the pump through a flow meter, for example of the electromagnetic type, turbine type or oval type.
is opened, and the flow meter measures that a predetermined amount of charge has moved through the pipe and generates a signal, for example by opening an air valve and actuating a pneumatic actuating mechanism, which causes the plunger 4 to move, as shown in solid lines. The circuit is configured to shift the position to a lower position such that

Note that ring-shaped seals 5 are fitted to the plunger 4 at the top and bottom, respectively, to maintain a watertight relationship between the valve body and the plunger and between the plunger and the filling discharge pipe 2 even when the plunger 4 slides. Care has been taken to ensure that it can hang down.

2 is a filling discharge pipe which is removably attached and fixed to the open end side of the valve body 1 via a clamp member 9 and a degassing/gas filling nozzle 3, which will be described later.
One of them communicates with the cavity 10 of the valve body 1, and the other opens on the side of the spout 8 of the container 11 filled with liquid, and when it is fixed to the body 1, its tube axis and the center axis of the plunger 4 The inner wall of the tube can slide on the plunger peripheral surface (seal 5) and maintain a watertight relationship.

However, when the plunger 4 finishes moving toward the valve body 1 as shown by the two-dot chain line, the contact between the discharge pipe 2 and the plunger 4 is released, and the filling discharge pipe 2 and the degassing/degassing from the valve body 1 are released. It is designed so as not to interfere with the removal work of removing the nozzle complex A consisting of the gas filling nozzle 3.

3 is a degassing and inert gas filling nozzle for sucking out the air in the container 11 that is removed by the filling, preventing oxidation of the filling, and aseptically sealing the filling, and its opening is connected to the discharge pipe 2. The air suction port 7 (also an inert gas sealing port) and the inside of the container 11 are communicated through a narrow gap 12 which is concentric with the outer wall of the discharge pipe and acts as a nozzle.

The degassing/gas filling nozzle 3 has a flange protruding from its base that engages and comes into close contact with the flange provided on the valve body 1 via the clamp member 9, thereby removing the degassing/gas filling nozzle 3 from itself and the filling discharge pipe. 2, that is, the entire nozzle complex A is fixed to the valve body 1, with the open end of the discharge pipe 2 extending sufficiently outward from the position of the opening of the gap 12 of the nozzle 3.

Reference numeral 11 denotes a container, which is usually made of a synthetic resin film, and its spout opening 8 is a cylindrical opening made of the same material. Its inner diameter is the discharge pipe 2
The outer diameter of the degassing/gas filling nozzle 3 is slightly larger, and the rounded mouth edge is rounded, so that when the filling valve is brought close to the spouting port 8, the conical surface of the tip of the degassing/gas filling nozzle 3 aligns with the mouth of the spouting port 8. By contacting the edges, the airtightness between the two is increased, thereby improving the efficiency of air suction and gas filling operations.

Reference numeral 9 designates a clamp member for removably fixing the valve body 1, the discharge pipe 2 and the nozzle 3 forming the nozzle complex A, and airtightly sealing the space between the two, and the clamp member 9 is of a conventionally known structure and can be used without any problem. .

[Effects] Since the filling valve of the present invention has a structure similar to that of Kamijigashi, the filling valve is placed in advance at a place where the spout 8 of the container 11 is supported in a fixed position by a holding member (not shown). The nozzle 3 is inserted from the discharge pipe 2 side, and the outer conical surface of the nozzle 3 is brought into contact with the mouth edge of the spout 8 to maintain airtightness between the two. (Since the above operation is relative, the spout 8 side of the container 11 may move.) At this time, the discharge pipe 2 of the filling valve has its discharge port closed by the plunger 4. After sufficient contact is made between the valve and the outlet of the container, the plunger 4 is raised by a device not shown, the filling supply port 6 and the outlet of the discharge pipe are communicated, and the liquid from the pump is discharged. Pass it along the flow path indicated by the large arrow and transfer it into the container.

Before filling, the air suction port 7 communicates with a suction pump (not shown), which sucks out the air in the container as shown by the small arrow through the narrow gap 12 between the nozzle 3 and the discharge pipe 2, and drains the filling liquid in the container. To increase filling efficiency by preventing foam from forming on the surface.

At this time, there is a sufficient distance between the opening end of the discharge pipe 2 and the opening of the nozzle 3, and the opening end of the discharge pipe protrudes below the spout 8 of the container. The film does not stick to the opening of the nozzle 3, and the air can be sucked out well.

In addition, droplets of the filler do not enter the air suction passage and the gas filling passage, making it sanitary.

As mentioned above, the supply port 6 is connected to a flow meter that measures the filling, and when it detects that a predetermined amount of liquid has passed through the meter, a pneumatic operating mechanism (not shown) is actuated to lower the plunger 4. On the other hand, the air suction port 7 is switched to the inert gas filling device side, and the inert sterile gas is forced into the container through the nozzle 3. At this time, the pressurized gas is discharged from the nozzle 3. Since the liquid flows out along the outer circumferential surface of the tube 2, the liquid droplets remaining at the opening of the discharge tube are blown away into the container, thereby reducing the amount of liquid dripping from the discharge tube 2 after filling is completed.

In addition, when it is necessary to clean the filling valve members after the filling operation is completed and at the start of operation, the nozzle engaging body A consisting of the discharge pipe 2 and the nozzle 3 can be removed from the valve body by disengaging the clamp member 9. Since it can be easily removed and disassembled from scratch, each member can be thoroughly cleaned, and subsequent assembly is also extremely easy.

Therefore, the nozzle complex A can be easily cleaned.

At that time, pull the plunger 4 sufficiently toward the valve body 1 in advance so that the lower end of the plunger 4 is separated from the discharge pipe 2 and does not become an obstacle when removing the discharge pipe 2 and nozzle 3 from the valve body 1. It goes without saying that it should be moved.

As described above, the filling valve of the present invention can improve filling efficiency when filling work for long-term storage of dairy products whose residues are likely to spoil if left at room temperature for a long time, and drinks whose flavor deteriorates due to oxidation. High,
Furthermore, it has advantages such as easy hygiene control of machines, instruments, and the environment.

[Brief explanation of the drawing]

FIG. 1 shows a cross-sectional view of the degassing and filling valve with gas filling nozzle of the present invention. 1... Valve body, 2... Filling discharge pipe, 3...
... Nozzle for degassing and gas filling, 4... Plunger,
5...Ring-shaped seal, 6...Filling material supply port, 7
. . . Air suction port (sterile gas filled passageway), 8 . . . Container pour-out port, 9 .

Claims (1)

[Scope of utility model registration request] A nozzle complex is formed by removably fitting a degassing/gas filling nozzle concentrically around the filling discharge pipe through a gap that acts as a nozzle on its outer periphery, and forming a nozzle composite body. an end extending outward beyond the opening of the gap of the degassing/gas filling nozzle;
The nozzle is provided with an air suction port that can be switched to an inert gas filling port and communicates with the gap, and the base of the nozzle complex is clamped to the end of a valve body that has a slidable plunger inside. A liquid supply channel is formed by connecting a filler supply port opening into a cavity in the valve body with the opening of the discharge pipe, and by sliding the plunger. A filling valve with a degassing and gas filling nozzle, characterized in that the opening of the discharge pipe can be opened and closed at its end.