JPS59124295A - Counter pressure type liquid filling valve - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] TECHNICAL FIELD This invention relates to improvements in counterpressure liquid fill valves.

In reverse pressure liquid filling valves used to fill gas-containing liquids such as carbonated beverages, in addition to opening and closing the flow valve, pressure is applied to remove atmospheric air from the container before filling and to remove return gas from the container during filling. Pressure gas pulps, vent valves, and snift valves must be operated, and the operating mechanism for each pulp is complicated, and each adjustment operation is troublesome and causes trouble.Furthermore, there is a vent passage for supplying and discharging pressurized gas. In a system that communicates with a liquid filling tank, filling is performed under a mixed pressure of atmospheric air that is already in the container and carbon dioxide gas in the liquid filling tank, and that the mixed gas in the container at the time of filling is mixed with the liquid filling tank. There is a defect where air is absorbed into the filling liquid to return to the inside.

The present invention is an attempt to improve these deficiencies in counterpressure liquid filling valves.

An embodiment of the present invention will be described with reference to the drawings. A support plate (2) having an annular filling liquid tank (1) on its upper part is filled with liquid circulation holes (3) communicating with the bottom of the filling liquid tank (1). A vent valve cylinder (4) is provided vertically outside the liquid tank (1), and a vent valve cylinder (4) is provided above the liquid distribution hole (3).
), the filling valve cylindrical body f51 is provided with a counterpressure gas communication hole (7) in the lower part, and furthermore, the filling valve cylindrical body (5) has a container sealing member (8) in the lower part on the outer periphery thereof. A sliding tube uO) that can freely vibrate up and down is fitted in the lifting mechanism (9).

A support arm α2 that supports the lifting mechanism (91 is supported by the shaft (l) 1 and has a sliding barrel 0), and an actuation lever that is pivotally attached to the upper part of the support arm az and has a guide roller (131) at the base. α4, a spring θ5) that urges the operating lever (14) upward, and an operating lever a (roller 06 at the tip).
) is fitted into a circular arc-shaped hole a formed in the support arm α2.
71, and when filling, the actuating arm (1
z lowers the calendar cylinder (10) by means of a spring (151) and brings the container sealing member (8) into close contact with the rim of the container;
In addition, after filling is completed, the cam rail (181) that presses against the guide roller α3 presses the operating lever circle, so that the roller (
The support arm (121 is rotated counterclockwise to lift the sliding cylinder 00) from the rim of the container via the support arm 161.

The upper end of the snift passage hole (6) is connected to the snift visiting hole (19) provided in the support plate (2) and the snift guiding hole (
It is connected to the snift chamber (21) inside the support plate (2) through the snift valve (20) provided in the snift valve (20), and the snift chamber (21)
The lower end of the sniff passage hole (6) opens into a suppression chamber formed in the sliding tube (10), and further communicates with the outdoor atmosphere through a notch (c)'. and communicates with the container side.

The upper end of the pressurized gas communication hole (7) is connected to the filling liquid tank 11 via the pressurized gas induction hole (241) of the support plate (2) and the pressurized gas chamber (25) at the bottom of the filling liquid tank (1).
A pressurized gas valve (27) is provided in the pressurized gas guide hole (24) so as to be openable and closable. The lower end is a spreader provided at the lower end of the filling valve cylinder (5).
It opens on the side of (28).

At the lower end of the sliding tube (10), on the side opposite to the pressurized gas passage hole (7), there is a pin (30) having a hooking recess (29) at the tip.
) is screwed in such a way that it can move forward and backward, and the spreader 5 is fitted into the hook recess 09) with a gap of μm, and the fitting cylinder and the sail hole (holding arm 132 provided with 311) are bent and engaged with each other. are removably engaged with each other, and the opening of the fitting tube hole (311 has a tightening ring) (341 is tightenably screwed into the fitting tube hole (311) with a bent tip (3510 having uneven surfaces). The parts are tightened and fixed through an elastic sleeve.

The upper part of the holding arm (321) of the vent tip field is integrally provided with a float valve holding cylinder 6j that fits into the vent passage (371) of the filled valve cylinder (51) and has a float valve (layer) inside. The float valve C38) is configured to close the vent passage C37') when liquid enters from the vent tip field.

In addition, the liquid conduction path (4) provided in the filling valve cylinder (5)
Support member (42) for the flow valve (41) that opens and closes α
is a spring (4) screwed onto the outer peripheral surface of the Pescito tube (43
4, and its upper end is supported by the support plate (2).
6), and the operating disk 146) C46+ is provided with a flow valve cam (471) and a vent valve cam (48), which will be described later. The passage (4 (11) is closed, but when the control rod 14 rotates and the support member (421 collides with the flow valve cam (471), the flow pulp master opens the liquid conduction passage +40) and the liquid flows out. It is constructed so that it can be filled downstream.

The lower end of the vent pulp cylinder (41) is connected to a vent pipe (41).
The upper vent pipe (4) fitted in the vent passage G37)
9) is slidably fitted into the upper vent pipe (49), and a vent pulp (5) fixed to the vent valve cylinder body (4+) is fitted in the upper vent pipe (49).
A valve seat (511) is formed to open and close the valve seat (511) and is urged downward by a spring so that its protruding flange plate (531) collides with the operating disc (46) f46, and the upper part is normally closed. The vent valve (50) is closed at the valve seat 61) of the Ben F'? When the pulp cam (48) collides with the spring t52)
The valve seat 6υ is separated from the vent valve (O) and opens the upper vent pipe (49) by the applied force.

A return gas chamber is provided in the upper part of the vent valve cylinder (41), and the return gas chamber 6 is connected to the return gas connecting pipe l5.
5) Return gas exhaust pulp ((e), differential pressure control device 6η
It is connected to the gas phase part of the filling liquid tank (1) through the pressure detection element 68115FA and the filling liquid tank (1).
1) and the return gas connecting pipe (b) 59) at the front of the return gas exhaust pulp (56) are connected on the pressurized gas conduit pipe side having a reverse opening.

The control rod (45) has an actuating disk f46)! In addition to the pressurized gas guide hole (241), the pressurized gas pulp (27
A pressurized gas cam (611) is provided for opening and closing the pressurized gas cam (611), and a control lever (621) is attached to the outer end of the pressurized gas cam (611). 641 and close cam (controlled by 6).

Therefore, the control timing of the control rod is first controlled by the pressurized gas cam b.
After υ opens and closes the pressurized gas pulp f271, the vent valve (50) opens and gradually opens the flow pulp (41), then the flow pulp (40 closes and the vent valve (5)
0) is formed so that it is closed.

Futokam (67) is in charge of providing condolences.

Since the embodiment of the present invention is constructed as described above, the lifting mechanism (9) lowers the calendar movement]10) and the container seal part (8) applies pressure x'''4- to the rim of the container. , the snift valve (20) is opened by the snift valve cam (66), and the pressurized gas pulp control device (E, /J is opened by the control lever t).
Activate the li21 to open the pressurized gas pulp (27), introduce pressurized gas such as carbon dioxide into the container, and send the air in the container from the snift conduction hole (6) to the snift induction hole α9). After extruding into the chamber (21), the snift valve cam (66) closes the snift valve (20) and the pressurized gas is suppressed and the chamber f231r is pressurized to promote the sealing force against the container, and then the pressurized gas pulp I2 force is closed.

When the inside of the container is maintained under high pressure in this way, the control rod (
When the control lever 451 is actuated by the actuating disk unit, the vent valve (50) is first opened by the vent pulp cam (48), and the inside of the container becomes at the same pressure as the filling liquid tank (1). When the flow pulp cam (471) is opened, the filling liquid passes through the liquid conduction path (4 (1) and starts filling the container.

When the container is filled with liquid, the pressurized gas in the container returns to the gas chamber 54 via the vent passage 67) and the vent valve 60).
), and the rise in the liquid level blocks the vent hole of the vent tip 39 and forms a seasoning line.
5) is raised to push up the float valve (support) to close the vent passage 37), and the gas pressure in the head space of the container and the filling head pressure are balanced and the filling action is stopped.

When filling is stopped in this way, the close cam (651
The control rod (49) is actuated and the flow valve (411
However, the vent valve (50) is then closed in sequence, and finally the snift valve (20) is opened again by the snift cam (66) to bring the gas pressure in the head space of the container to atmospheric pressure, and the sliding tube α0 rises to open the container opening. All filling steps away from the edges are complete.

The return gas that has entered the return gas chamber 5 is exhausted to the outside of the filling chamber by the return gas exhaust valve (g) of the return gas connection pipe (551), and the air is filled without returning to the filling liquid tank (1). This prevents air from being absorbed into the liquid, and when the air in the container is discharged, the pressurized gas flows from the pressurized gas communication hole (7) into the container from below to above, forming a jet flow. Furthermore, the air is passed through the gap between the spreader (2) and the holding arm 132) to the sniff passage hole (6).
to be discharged.

The present invention provides a flow pulp in a counter pressure type liquid filling valve,
The cams that control the opening and closing of the pressurized gas valve and the vent valve are installed on the same control rod, and all controls other than the snift valve are controlled using the same control rod, thereby eliminating atmospheric air from inside the container and removing air from inside the container during filling. Since the return gas is discharged, the operation mechanism is simple and each valve can be adjusted easily.Moreover, atmospheric air and pressurized mixed gas can be supplied and discharged smoothly, especially when inside the container. This is advantageous because the mechanism of the liquid filling valve that prevents the return gas from entering the filling liquid tank can be significantly simplified.

Furthermore, in the present invention, the pressurized gas passage hole, the snift passage hole, and the notch are open on opposite sides of the filling valve cylinder, so that the pressurized gas from the pressurized gas passage hole flows inside the container from below to above. The air flows smoothly toward the snift passage hole, allowing atmospheric air to be quickly and efficiently removed.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view of the present invention, Fig. 2 is a vertical sectional front view of the main part, Fig. 3 is a cross-sectional plan view of the main part, Fig. 4 is a bottom view of the main part, and Fig. 5 is a front view of the main part. 6 and 6 are respectively longitudinal sectional side views of the essential parts, FIG. 7 is a longitudinal sectional front view of the essential parts, and FIG. 8 is an explanatory diagram of the arrangement of the filling valve of the present invention. (5)... Filled liquid tank body, (6)... Snift passage hole, (7)... Pressurized gas passage hole, (201... Snift valve, (2η... Pressurized gas pulp, '...
・Notch, (4υ...flow valve, (451...
Control rod, (471...cam for flow valve, (48)
...Cam for vent valve, 50)...Vent valve.

Claims (1)

[Claims] 1. The liquid-filled pulp is provided with a snift valve, a pressurized gas pulp, and a vent valve, and a control rod that opens and closes the flow valve of the liquid-filled pulp has a cam that opens and closes the vent valve and a cam that opens and closes the pressurized gas pulp. A counter pressure type liquid filling valve equipped with a cam. 2. The liquid-filled pulp is provided with a snift valve, a pressurized gas pulp, and a vent valve, and the control rod that opens and closes the flow valve of the liquid-filled pulp is provided with a cam that opens and closes the vent valve and a cam that opens and closes the pressurized gas pulp; Furthermore, a reverse pressure type liquid filling valve is provided, wherein the notch of the liquid filling pulp and the lower end opening of the pressurized gas communication hole are opened so as to face both sides of the filling valve cylinder.