JPS6264787A - Device filling rigid vessel - 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 Field of the Invention The invention relates to a device for filling rigid containers, such as bottles or the like, comprising a plurality of filling nozzles and a metering device controlling the filling nozzles. The invention relates to a type of filling unit having a centering device assigned to each filling unit for aligning the container with respect to the filling nozzle.

In a device of this type known from the prior art, for example from EP-A-1,196, a fork-shaped holder is mounted on the tray of the metering device. The holder holds the neck and body of the bottle and aligns the mouth of the bottle with the filling nozzle. Since the centering device is connected to the saucer and one fork extends to the neck of the bottle, the centering device is exposed to impacts caused by objects pushed into the rotating chamber or by bottle fragments when the bottle is broken. It will be done. Such impacts can damage sensitive metering equipment. Furthermore, the weight of the centering device results in a preload of the weighing device, which impairs the sensitivity of the p1 weighing device to the weight of the quantity to be measured.

Structure of the Invention In the present invention, the centering device has a ring shape and is tapered upward, and is disposed so as to be movable up and down coaxially with respect to the filling nozzle.

Advantages of the Invention Compared to the known technology, the configuration of the invention opens up the circulation path of the bottle and the area between the filling nozzle and the saucer, and avoids impacts on the measuring chamber. The vertical force component of the force exerted on the container by the centering device is extremely small and does not have a negative effect on the measurement result.

In an advantageous embodiment of the invention, the centering device has a rotating member which limits the one-through opening of the reservoir in the neck of the bottle and minimizes the sticking friction of the centering force. It is furthermore advantageous if the rotating element is designed as a roller.

As shown in the drawings, a rotary filling device for filling a bottle 1 with a predetermined amount of liquid has a lower rotary table 11.
and an upper rotary table 12. A plurality of weighing devices 13 are arranged on the lower rotary table 11 at equal intervals on a pitch circle. A casing 14 with a metering chamber of the metering device 13 is mounted on the lower plate of the rotary table 11. The pan 16 of the metering device is attached to a rod 17 which projects freely from the casing 14 through an opening 18 in the lower rotary table 11.

A filling nozzle 20 including a filling valve 21 is arranged on the upper rotary table 12 directly above each tray 16 and oriented axially with respect to the tray.

The filling nozzle 20 passes through the upper rotary table 12 and points vertically downward. The filling valve 21 is connected by a conduit 22 to a storage container 23 .

In order to align the bottle 1 placed on the tray 16 of the metering device 13, a centering device 25 is arranged near the underside of the filling nozzle 20. The centering device 25 has a ring 26 which is provided with cross-shaped recesses 28 starting from an opening 27 thereof. Notch 2
8, a roller 30 is rotatably mounted on a bin 31. The axes of the pins 31 are located in a common plane and form a square. The distance between the two rollers 9 facing each other is slightly larger than the diameter of the neck 2 of the bottle 1 to be filled. The ring 26 is rigidly mounted in a ring plate 32 that extends transversely to the injection direction of the filling nozzle 20. ring plate 32
The bearing part 3 is attached to the upper rotary table 12.
The rod 33 is attached to the lower end of the rod 33, which is vertically movable within the rod 4. The rod 33 carries at its upper end a clamping piece 35, which is provided with a roller 36. roller 3
6 is located on the upper surface (control surface) of a stationary cam ring 38 that completely surrounds the upper rotary table 12, and this upper surface defines the height position of the centering device 25.

The illustrated embodiment operates as follows: at a predetermined point in the circulation stroke of a filling unit consisting of two filling nozzles 20 and a metering device 13, a cam ring 38 is inserted into the ring via a roller 36 and a rod 33 with a raised cam surface. The plate 32 and thus the ring 26 are pushed up to the upper position indicated by the dashed line. In this position the bottle 1 is transferred onto the tray 16 of the metering device 13 by means of a feeding device (not shown).

In order to align the mouth of the bottle 1 with the injection direction of the filling nozzle 20 before opening the filling nozzle 20, the centering device 25 is lowered from an upper position to a lower position shown in solid lines during rotation of the rotating mechanism. This causes the neck 2 of the bottle 1 to reach between the rollers 30 of the ring 26, whose arcuate lower surfaces facing each other center the neck of the bottle 1 into alignment with the filling nozzle 20. During subsequent filling, rollers 30 keep bottle 1 aligned with filling nozzle 20. When the target weight is filled into bottle 1, weighing device 1
3 gives a signal and the filling valve 21 closes. cam ring 38
At a predetermined point in the circulation stroke of the rotating mechanism, the centering device 25 is pushed up again to the upper position 1, the filled bottle is released for removal, and the removal device (
(not shown).

Instead of four rollers, the centering device may have three rollers or more than four rollers, and the rollers may not have a cylindrical circumferential surface but a differently shaped circumferential surface. .

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a plan view of a seven-point link ring of the filling unit of the embodiment of FIG.

Claims (1)

[Claims] 1. A device for filling rigid containers, such as bottles (1) or the like, comprising a plurality of filling nozzles (20) and a metering device (13) controlling the filling nozzles. In the type having a filling unit and a centering device (25) assigned to each filling unit for aligning the container with the filling nozzle, the centering device (25) is ring-shaped and tapered upward. 1. A device for filling rigid containers, characterized in that the device is configured such that it can be raised and lowered coaxially with respect to a filling nozzle. 2. The centering device (25) has a plurality of rotating members (30) arranged on a circle, the rotating members together defining a through opening for the neck (2) of the container. An apparatus according to claim 1. 3. Device according to claim 2, in which the rotating member is constructed as a roller (30), the axis of rotation of which lies in one plane. 4. Four rollers (30) are supported within the ring (26), and the rotation axes of the rollers form a square;
4. Device according to claim 3, characterized in that the square faces extend transversely to the filling axis of the filling nozzle (20).