JPS6112390Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a liquid quantitative filling machine having a foam prevention device.

[Prior Art] Conventionally, when a liquid substance, especially an emulsion, is divided into portions using a liquid metering filling machine, bubbles are generated in the liquid filled into a measuring cylinder of a filling member provided in the filling machine. These bubbles adhered to the inner wall surface of the cylinder and became a hindrance to metering, significantly impeding metering accuracy and work efficiency.

In other words, one of the causes of foaming in the measuring cylinder is that it is caused by the swirling of the liquid substance inside the measuring cylinder when it flows out from the outflow port, and the other cause is that the foaming occurs due to the swirling of the liquid substance inside the measuring cylinder when it flows out from the outflow port. This is because the liquid substance is agitated when it is ejected into the metering cylinder, and improvements in these areas have been desired.

[Purpose of the invention] The present invention was created in view of the above circumstances, and aims to prevent the foaming that tends to occur in the measuring cylinder of the filling member with a simple structure.
The aim is to improve measurement accuracy.

[Description of Embodiments] Details of embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a conventionally known liquid quantitative filling machine using the anti-foaming device according to the present invention. The structure will be briefly described below. 1 is a charging tank, 2 is a service tank, 3 is a valve for adjusting hydraulic pressure, and 4 is a valve seat body. A rotary valve body (6) is rotatably mounted on the valve seat body 4 and is provided with a large number of filling members 5 at equal intervals on the outer circumference. A liquid reservoir 7 connected to the service tank 2 and having a semicircular planar shape is formed in the valve seat body 4, and the valve seat body 4 and the rotary valve body 6 slide together. Specifically, a packing 4a is interposed in the sliding portion of the valve seat body 4 and the rotary valve body 6, excluding the liquid reservoir 7.

When the rotary valve body 6 passes over the liquid reservoir 7, the liquid reservoir 7 and the measuring cylinder 8 provided in each of the filling members 5 are communicated with each other, so that the liquid in the liquid reservoir 7 is connected to the measuring cylinder 8. One end of a pipe 9 that supplies the measuring cylinder 8 is connected. Reference numeral 10 denotes an overflow pipe for returning excess liquid supplied to the measuring cylinder 8 to the liquid reservoir 7. The filling member 5 has a general structure in which an opening/closing valve opens when a container is introduced from the container carry-in line a shown in FIG. 2 and is automatically filled with the liquid in the measuring cylinder 8. Since this is a detailed illustration, detailed illustrations and explanations thereof are omitted. Figure b shows a line for discharging liquid-filled containers.

FIG. 3 shows the main parts of the filling member 5, and the measuring cylinder 8 is made of a transparent glass material.

11 is a float valve, 12 is a float valve receiving frame, 13 is a float valve seat member, and 14 is a float valve cap, which are constructed so that they can be disassembled and assembled. 15 in the diagram
is a foam prevention device having a plate having a radial cross-shaped planar shape as shown in FIG. A frog-shaped clip member 16 provided at the bottom of the preventer 15
is fitted onto the outflow pipe 17 of the filling member 5, and the anti-foaming device 15 is fixed within the measuring cylinder 8, and the anti-foaming device 15 is arranged along the axis of the outflow pipe 17. It is something.

Figure 5 shows the deformation of the clip member, and shows the deformation of the clip member.
A clip member 16 made of a letter-shaped elastic plate is attached, and the anti-foaming device 15 may be short as shown in FIG.

[Description of operation] Next, the operation will be explained based on the above embodiment. As shown in FIG. 1, when the filling member 5 passes through the liquid reservoir 7 provided in the valve seat body 4, the liquid with increased hydraulic pressure flows into the measuring cylinder 8 through the pipe 9. When filled with liquid, the float valve 11 floats up, and due to this floating, the float valve 11 comes into close contact with the seat surface of the float valve seat member 13 to prevent the inflow of liquid. At this time, if any liquid passes through the float valve seat member 13, the liquid enters the float valve cap 14, flows out from the overflow pipe 10 connected thereto, and is collected in the service tank 2.

When the filling member 5 is removed from the liquid reservoir 7, the liquid pressure no longer increases, and although not particularly shown, the on-off valve inside the filling member 5 opens due to the action of the container rising, causing the inside of the measuring cylinder 8 to open. A fixed amount of liquid is filled into the container.

When liquid flows into the measuring cylinder 8 due to hydraulic pressure, the liquid is not only prevented from swirling by the anti-foaming device 15 made of a cross-shaped plate, but also prevents the liquid from flowing into the container. During filling, the flow rate is moderately controlled by this preventer, and vortex generation is prevented, so there is less foaming, and even if bubbles are generated, the bubbles will always maintain a regular shape due to the preventer. There are no major problems with quantitative filling.

[Effect of the invention] As described above, according to the invention, the anti-foaming device made of a radial plate structure can prevent liquid from being supplied into the measuring cylinder and when filling the container.
It does not create a swirling effect on the liquid, and even in liquids that easily foam, such as emulsions, only foaming is observed that does not interfere with measurement, making it possible to improve measurement accuracy with simple means. It has a great practical effect, with good results obtained from numerous measurements.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing the liquid quantitative filling device, Fig. 2 is a plan view of a part of the same as above, Fig. 3 is a longitudinal sectional front view of a part of the filling member, and Fig. 4 is a cross-sectional view of the anti-foaming device. The top view and FIGS. 5 and 6 are perspective views of another embodiment of the anti-foaming device. 1...Preparation tank, 2...Service tank, 3
... Valve for adjusting liquid pressure, 4 ... Valve seat body, 5 ... Filling member, 6 ... Rotary valve body, 7 ... Liquid reservoir, 8 ... Measuring cylinder, 9
...Pipe, 10 ...Overflow pipe, 1
1... Float valve, 12... Float valve receiving frame, 13... Float valve seat member, 14
...Float valve cap, 15...Bubble prevention device, 16, 16'...Clip member, 17...
outflow pipe.

Claims (1)

[Scope of utility model registration request] The liquid supplied to the liquid reservoir using hydraulic pressure,
A liquid metering system in which a filling member is sequentially rotated and passed through this liquid reservoir, and a fixed amount is supplied into a measuring cylinder, and the liquid is metered and subdivided into containers by the opening action of an on-off valve provided on the filling member. The filling machine has a foam prevention device characterized in that a foam prevention device is disposed in the measuring cylinder and is constructed of a plate material having a radial planar shape and aligned with the axis of the liquid outflow pipe. Liquid quantitative filling machine.