JPH08310596A - Filling apparatus - Google Patents

Abstract

PURPOSE: To increase filling speed and improve final contents accuracy by a method wherein after initial contents are determined a bottle is lowered, and the contents are re-filled while transporting the bottle in a predetermined section with a lower end of an outer tube opening its exhaust port to determine final contents. CONSTITUTION: When filling is started, a lower end of an outer tube 2 is positioned above an upper end of an exhaust port 6. As filling is done from a liquid injection port 10 and when first filling is completed, the upper end of the exhaust port 6 is clogged by filled liquid and no exhaustion is done, so that filling is stopped. After a state that the liquid has been filled to a first filled liquid level when the filling is stopped is determined, a container 9 is lowered, so that the lower end of the outer tube 2 is brought to a position lower than an inner tube 3 and the upper end of the exhaust port 6. Then as the container 9 lowers, the filled liquid level also lowers, and since the exhaust port 6 is opened again, the liquid is filled again. By providing a correction section wherein the container can be transported by a predetermined section to maintain the state, the liquid can be filled to the lower end of the outer tube 2, thereby determining final contents.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling device applicable to a bottle filling machine and the like, and particularly, the filling liquid leaks from the gap between the outer cylinder and the inner cylinder to the exhaust port to increase the ventilation resistance in the exhaust pipe. However, the present invention relates to a filling device that prevents the filling speed from slowing down.

[0002]

2. Description of the Related Art Conventionally, a valve main body integrally supporting an air conduit via a rod guide plate and a rod loosely fitted in a hole of the rod guide plate are provided on an upper portion of the valve main body and are slidable on the air conduit. A sliding valve in liquid-tight relation with the main valve, a main liquid conduit integral with the lower part of the sliding valve, a stopper for abutting the upper end of the air conduit for sealing, and a closure fitting integral with a spring bearing abutting the upper end of the rod. , The closing metal fitting and respective springs for urging the sliding valve downward are provided, and the lower part of the air conduit is eccentric to the main liquid conduit and integrated with the main liquid guide, Forming liquid holes and air holes between
There is a non-carbonated beverage filling valve (see Japanese Utility Model Publication No. 62-1120) in which upper ends of the liquid hole and the air hole in the axial direction are arranged such that the air hole is above the liquid hole.

[0003]

However, in the filling valve for non-carbonated beverage of the prior art described above, when the bottle is lowered by the elevating table after the filling liquid is filled up to the upper end of the air hole,
Until the lower end of the main liquid conduit reaches the upper end of the air hole, the filling liquid level also descends, so that the air hole is opened and refilled. At that time, there is a problem that the final height of the filling liquid varies depending on the operating speed and the surface tension of the filling liquid. Further, FIG. 8 shows the filling valve in the case where the lower end of the main liquid conduit is located below the upper end of the air hole, but in this case, the liquid leaking between the inner cylinder and the outer cylinder enters the air hole. There was a problem that it was caught and hindered the air flow, and the filling speed decreased. In view of these circumstances, it is an object of the present invention to provide a filling device that has a high filling speed and improves the final taste accuracy.

[0004]

In order to solve the above-mentioned problems, the present invention provides an inner cylindrical body attached to a lower end of an exhaust pipe fixed to a filling liquid tank, and slidable with the inner cylindrical body. An outer cylinder provided and an elevating means for elevating the outer cylinder relative to the inner cylinder, and the liquid injection port and the exhaust port provided on the inner cylinder are opened. In the filling device for filling the container with the filling liquid, the elevating means has a first position where the lower end of the outer cylinder is positioned above the upper end of the exhaust port and a second position where the lower end of the outer cylinder is positioned between the upper end and the lower end of the exhaust port. And a third position where the lower end of the outer cylinder closes the exhaust port, and the filling is started at the first position,
After the filling liquid in the container reaches the upper end of the exhaust port, the lower end of the outer tubular body is once lowered to the second position to allow the filling liquid in the container to reach the lower end of the outer tubular body, and then the outer tubular body is moved to the third position. We adopted the technical means of terminating the filling by placing it in position.

[0005]

According to the present invention, by adopting the above technical means, the lower end of the outer cylindrical body is located above the upper end of the exhaust hole at the start of filling. By doing so, the liquid leaking from the gap between the outer cylinder and the inner cylinder is not sucked into the exhaust hole. After determining the first taste, a correction section is provided in which the bottle is lowered by the lifting table and when the lower end of the outer cylindrical body reaches a position lower than the upper end of the exhaust port, the bottle is conveyed in that state for a certain section. Therefore, the lower end of the outer cylinder is filled and the final taste is determined. Therefore, since the filling liquid does not leak to the exhaust passage, the filling speed is high, the capacity per filling valve is high, and the variation in the filling speed is small.

[0006]

Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic plan view of this embodiment.
The container conveyed by 1 is supplied to the filling device 13 through the inlet star wheel 12, is filled, and then discharged through the discharge star wheel 14.

FIG. 2 is a drawing showing the shape of the cam 15 for controlling the raising and lowering of the container raising and lowering device 17 shown in FIG. 4 of the present embodiment.

The states A to E shown in FIGS. 1 and 2 are as follows: A: Lifting device lifted, B: Lifting device lifted end (filling section), C: Lifting device one step lower (filling correction section), D : Elevating device descending, E: Elevating device descending end, respectively, which are divided into five sections, a lifter rising section, a filling section, a taste correction section, a lifter descending section, and a lifter descending end section.

Next, the filling valve of this embodiment will be described. FIG. 3 is an overall view of the filling valve, and FIGS. 5 to 7 are cross-sectional views of essential parts of the filling valve. The filling tank 16 has a filling liquid stored therein and is configured to rotate around a vertical axis (not shown). A plurality of filling valves 8 are provided on the outer peripheral surface of the lower surface at equal intervals in the circumferential direction. There is.

A tubular housing 21 is fixed to the lower surface of the filling tank 16, a sleeve 1 is slidably provided in the housing 21, and is constantly urged downward by a spring 7. An exhaust pipe 4 is provided at the axial center of the housing 21 and the sleeve 1, and is fixed to the bottom surface of the filling tank 16. The outer cylindrical body 2 and the container mouth packing 5 are fixed to the lower surface of the sleeve 1. Further, an inner cylinder 3 having a liquid injection port 10 and an exhaust port 6 is fixed to the lower surface of the exhaust pipe 4.

FIG. 4 is a vertical cross-sectional view of a container elevating device 17 which is the container elevating means of this embodiment. Elevating rods 18 are provided at equal intervals in the circumferential direction of a rotating body which rotates around a vertical axis (not shown). There is. An elevating table 19 for mounting the container 9 to be supplied is provided on the upper end of the elevating rod 18. Further, a cam follower 20 is fixedly provided at the lower end of the elevating rod 18, so that the elevating rod 18 can be elevated and lowered according to the shape of the cam.

First, the filling valve in the filling device of the present invention will be briefly described. The container 9 conveyed by the conveyor 11 is supplied to the elevating table 19 via the inlet star wheel 12 and pushed up by the container elevating device 17. Then, the container opening comes into contact with the container opening packing 5, and the sleeve 1 and the outer cylindrical body 2 are lifted against the spring 7. At this time, the outer cylinder 2 is raised with respect to the inner cylinder 3, so that the liquid injection port 10 and the exhaust port 6 formed in the inner cylinder 3 are opened. In this way, the filling liquid is filled from the liquid injection port 10, and the air in the container 9 is discharged from the exhaust pipe 4 via the exhaust port 6.

Next, the filling state at each stage of the present invention will be described in detail with reference to FIGS.

As can be understood from those shown in FIGS. 5 to 7, the state shown in FIG. 5 is the state of starting the filling. At this time, as shown in the figure, when the container 9 placed on the elevating table 19 is pushed up by the outer cylinder 2 and the container elevating device 17, the container mouth first comes into contact with the container mouth packing 5 and the spring 7 is resisted. Then, the sleeve 1 and the outer cylindrical body 2 are lifted, the liquid injection port 10 and the exhaust port 6 are opened, and the filling of the liquid is started. Moreover, the outer cylinder 2 and the inner cylinder 3 are configured to be slidable.

At this time, as shown in the figure, the outer cylinder 2, the inner cylinder 3 and the exhaust pipe 4 are provided so that the lower end of the outer cylinder 2 is located above the upper end of the exhaust port 6. By doing so, the entire exhaust port 6 formed in the exhaust pipe 4 is opened, so that the exhaust port 6 can be widened and the entrainment of liquid can be reduced.

In the state shown in FIG. 6, when the filling is advanced and the primary filling is completed (the first filling state), the upper end of the exhaust port 6 is blocked with the filling liquid and the exhaust is not exhausted. Stops. After the state in which the filling is stopped up to the level of the first filling liquid is determined, the container 9 is lowered by the elevating table 19 as shown in FIG. 7, and the lower end of the outer tubular body 2 is set to the inner tubular body 3 and the exhaust gas. The pipe 4 is made to reach a position below the upper end of the exhaust port 6. Then, as the container 9 descends, the filling liquid surface also descends, and the exhaust port 6 is opened again, so that the liquid is refilled. Then, by providing a correction section {see C (seasoning correction section) in FIG. 2} with a cam or the like so that it can be conveyed for a certain section so as to maintain that state, the lower end of the outer cylindrical body 2 is filled and the final taste is determined. It is possible.

Next, the operation of the filling valve in the filling device of the present invention will be described. As shown in FIG. 6, initially, the elevating table 19 is lifted and opened by the cam 15 for the container elevating device so that the lower end of the outer tubular body 2 is above the exhaust port 6 of the exhaust pipe 4, and the primary filling is performed. When the upper end of the exhaust port 6 is filled, the primary filling is completed. And the lift 1
9 is once lowered to a height where the lower end of the outer tubular body 2 overlaps with the exhaust port 6, the filling line is corrected and filling is performed, and the final filling is completed. Then, the elevator 19 is completely lowered to fully close the filling valve 8.

[0018]

According to the present invention, the following effects can be obtained based on the above configuration. (1) Since the filling liquid does not leak into the exhaust port through the gap between the outer cylinder and the inner cylinder, the filling speed does not slow down. Therefore, the capacity per filling valve is high. (2) Filling can be performed with high accuracy.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a filling device according to an embodiment of the present invention.

FIG. 2 is a development view showing a cam shape according to one embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view showing the entire filling valve according to one embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view of a container lifting device according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view of essential parts at the time of filling in one embodiment of the present invention.

FIG. 6 is a cross-sectional view of the essential parts of a first embodiment of the present invention at the completion of primary filling.

FIG. 7 is a cross-sectional view of a main part at the time of correction of taste in one embodiment of the present invention.

FIG. 8 is a cross-sectional view of a main part at the time of filling in the conventional technique.

[Explanation of symbols]

1 ... Sleeve 2 ... Outer cylinder 3 ... Inner cylinder 4 ... Exhaust pipe 5 ... Container port packing 6 ... Exhaust port 7 ... Spring 8 ... Fill valve 9 ... Container 10 ... Injection Port 11 ··· Conveyor 12 ···· Inlet star wheel 13 ···· Filling device 14 ············································································································································· Container container lifting device 18 ······· Cam follower 21 Housing

Claims (1)

[Claims] 1. An inner cylinder attached to a lower end of an exhaust pipe fixed to a filled liquid tank, an outer cylinder slidably provided on the inner cylinder, and the outer cylinder being the inner cylinder. A filling device for filling a container with a filling liquid by opening an injection port and an exhaust port provided in the inner cylindrical body, A first position in which the lower end of the cylinder is positioned above the upper end of the exhaust port, a second position in which the lower end of the outer cylinder is positioned between the upper end and the lower end of the exhaust port, and a third position in which the lower end of the outer cylinder closes the exhaust port. Control, and start filling at the first position,
After the filling liquid in the container reaches the upper end of the exhaust port, the lower end of the outer tubular body is once lowered to the second position to allow the filling liquid in the container to reach the lower end of the outer tubular body, and then the outer tubular body is moved to the third position. A filling device which is located at a position and ends filling.