JPS6154665B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention The present invention relates to an improvement in a cleaning device for a piston-type filling machine, and its purpose is to efficiently clean a filling cylinder and a filling nozzle.

BACKGROUND TECHNOLOGY The current state of cleaning in a conventional piston-type filling machine is to supply a cleaning liquid to a liquid supply tank, operate the filling machine, and discharge the cleaning liquid directly from a filling nozzle.

However, in a method using such a filling action, the flow velocity of the liquid in the filling cylinder and filling nozzle is low, so the cleaning effect of the cleaning water is not sufficient and the cleaning efficiency is poor. There are defects that may cause contamination or damage to mechanical parts.

Structure of the Invention The present invention has been made to improve these deficiencies, and the first invention is to connect the suction hole provided at the bottom side of the filling cylinder to the liquid supply tank, and the discharge hole to the plunger cylinder. In a piston-type filling machine in which liquid from a liquid supply tank is filled into a container from a filling nozzle of a plunger cylinder by actuation of a filling piston, a spiral jet jet is formed on the inner wall of the lower part of the filling cylinder. A cleaning water injection nozzle is detachably provided, and a cleaning cap is detachably fitted to the filling nozzle of the plunger cylinder, and a cleaning water injection nozzle is provided on the cleaning cap to form a spiral jet jet on the inner wall thereof. The gist of the invention is that the suction hole provided at the lower end side of the filling cylinder is connected to the liquid supply tank, and the discharge hole is connected to the plunger cylinder, so that the liquid supply tank is opened by the operation of the filling piston. In a piston-type filling machine in which liquid is filled into a container from a filling nozzle of a plunger cylinder, a cleaning water injection nozzle is detachably provided at the bottom of the filling cylinder so as to form a spiral jet jet on the inner wall thereof. At the same time, a cleaning cap is removably fitted to the filling nozzle of the plunger cylinder,
The washing cap is provided with washing water injection nozzles that form a spiral jet jet on its inner wall, and the washing water is switched between the forward and reverse directions by a pipe via a supply pump and a switching valve from each washing water injection nozzle to a washing water tank. The gist of this is that they are connected to allow free circulation.

To explain an embodiment of the present invention with reference to the drawings, a filling cylinder 1 provided around a rotary filling machine
A suction hole 2 and a discharge hole 3 are provided facing each other on the lower end side of the , and the suction hole 2 communicates with a liquid supply tank 6 via a branch pipe 5 having a one-way opening/closing valve 4. is connected to the plunger cylinder 8 by a siphon through hole 7.

The filling piston 9 fitted into the filling cylinder 1 has its actuating roll 10 connected to a cushion cam 11,
11 and move up and down, and the plunger cylinder 12 rises during the discharge stroke of the filling piston 9 to connect the siphon through hole 7 and the plunger cylinder 8. 14, and is formed so that the liquid in the liquid supply tank 6 is filled into the container from the filling nozzle 15 at the lower end of the plunger cylinder by the vertical movement of the filling piston 9.

A cleaning water injection nozzle 16 is detachably attached to the lower bottom of the filling cylinder 1 so as to form a spiral jet jet on the inner wall surface thereof.
The cleaning water injection nozzle 16 is connected to a cleaning water tank 21 via a pipe 17, a manifold 18, a pipe 19, and a supply pump 20, and the pipe 19 is connected to a stop valve 22 and a three-way switching valve 2.
3 is provided.

A cylindrical cleaning cap 24 is removably fitted into the filling nozzle 15, and the cleaning cap 24 is provided with a cleaning water injection nozzle 25 that forms a spiral jet jet on the wall surface of the cleaning cap 24. The water injection nozzle 25 is communicated with the cleaning water tank 21 via a pipe 26, a manifold 27, and a pipe 28, and a three-way switching valve 29 provided on the pipe 28 is connected to the three-way switching valve 23 of the pipe 19 through a pipe 30. There is.

The stop valve 22 and the three-way switching valve 23
A stop valve 31 is installed in the pipe 19 between the
The pipe 32 is connected to the liquid supply pipe 33 of the liquid supply tank 6 via a three-way switching valve 34, and the pipe 32 is connected to the cleaning liquid recovery pump 3 via a stop valve 35.
6 is provided.

In the figure, 37 is a rotary disk that supports the filling cylinder 1, and 38 is a filling amount adjustment lever.

Since the embodiment of the present invention is configured as described above, when cleaning the filled cylinder 1 as a main body, when the stop valve 31 and the opening/closing valve 4 are closed, the stop valve 22 is opened, and the supply pump 20 is driven, the cleaning water is discharged. The cleaning water is injected from the cleaning water injection nozzle 16 into the filling cylinder 1 through the pipe 19, manifold 18, and pipe 17, so when the filling machine is operated in the same manner as described above, the cleaning water is injected into the filling cylinder 1.
After washing, the plunger cylinder 8 and the filling nozzle 15 are washed, and the water is circulated back to the washing water tank 21 from the washing cap 24 through the pipe 26, the manifold 27, the pipe 28 and the three-way switching valve 29.

In addition, when cleaning is mainly performed using the filling nozzle 15, the three-way switching valves 23 and 29 are used to
0, the supply pump 20 and pipe 28 are connected, and the cleaning water is supplied from the supply pump 20 through the pipe 28, manifold 27, and pipe 26 to the cleaning water injection nozzle 15.
When the filling machine is operated at the same time as spraying water for washing, the washing water becomes reversely filled and the plunger cylinder 8
It enters the filling cylinder 1 from the cleaning water injection nozzle 16, pipe 17, manifold 18, pipe 1.
9. The cleaning water returns to the cleaning water tank 21 via the pipe 32. In that case, when the on-off valve 4 is open, some of the cleaning water flows through the branch pipe 5, liquid supply tank 6, liquid supply pipe 33, and pipe 32. After that, the water returns to the washing water tank 21.

If you wish to further clean the entire filling machine, close the stop valves 22 and 35 and open the stop valve 3.
1 is opened and the cleaning water in the cleaning water tank 21 is supplied from the supply pump 20 to the liquid supply tank 6 via the pipe 32 and the liquid supply pipe 33, and the filling machine is activated.The cleaning water is supplied to the filling cylinder 1, plunger cylinder 8, After cleaning the filling nozzle 15, the water is circulated back to the cleaning tank 21 via the cleaning water injection nozzle 25, pipe 26, manifold 27, and pipe 28.

Effects of the Invention The first invention provides a piston-type filling machine of this type, in which washing water injection nozzles that form spiral jet jets are detachably provided at the lower part of the filling cylinder and the filling nozzle, respectively, so that the washing water injection nozzles can be directly used. Since the cleaning water is sprayed in a spiral manner, the filling cylinder and the filling nozzle can be cleaned efficiently, smoothly and reliably at a high flow rate, and the cleaning efficiency can be improved.

The second invention provides the above-mentioned effects in addition to the above-mentioned effects by forming the pipe circuit of the washing water of each washing injection nozzle so as to circulate and return the washing water, and by forming the washing water flow direction to be freely switchable between forward and reverse directions. It is possible to reliably prevent contamination of the surrounding area and damage to machine parts due to water discharge, and it is also possible to select between full cleaning and partial cleaning, and it also saves cleaning water, which is an excellent feature not found in conventional cleaning equipment. Has characteristics.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of the present invention, and FIG. 2 is a longitudinal sectional front view of the main part. 1... Filling cylinder, 2... Suction hole, 3...
Discharge hole, 6... Liquid supply tank, 8... Plunger cylinder, 9... Filling piston, 15... Filling nozzle, 16... Cleaning water injection nozzle, 17, 19
... Pipe, 21 ... Washing water tank, 23 ... Switching valve, 24 ... Washing cap, 25 ... Washing water injection nozzle, 26, 28 ... Pipe, 29 ...
Switching valve, 30, 32...pipe.

Claims (1)

[Claims] 1. A suction hole provided on the lower end side of the filling cylinder is connected to the liquid supply tank, and a discharge hole is connected to the plunger cylinder, so that the liquid in the liquid supply tank is transferred to the plunger cylinder by the operation of the filling piston. In a piston-type filling machine that fills a container from a filling nozzle, a cleaning water injection nozzle is detachably provided at the lower part of the filling cylinder so as to form a spiral jet jet on the inner wall thereof, and a cleaning water injection nozzle is detachably provided in the lower part of the filling cylinder. A cleaning device for a piston-type filling machine, in which a cleaning cap is removably fitted to a filling nozzle, and the cleaning cap is provided with a cleaning water jet nozzle that forms a spiral jet jet on the inner wall of the cleaning cap. 2 Connect the suction hole provided on the lower side of the filling cylinder to the liquid supply tank, and the discharge hole to the plunger cylinder, and fill the liquid from the liquid supply tank into the container from the filling nozzle of the plunger cylinder by the operation of the filling piston. In the piston-type filling machine, a cleaning water injection nozzle is detachably provided at the lower part of the filling cylinder so as to form a spiral jet jet on the inner wall thereof, and a cleaning cap is attached to the filling nozzle of the plunger cylinder. A cleaning water injection nozzle that is removably fitted and forms a spiral jet jet on the inner wall of the cleaning cap is provided, and each of the cleaning water injection nozzles is connected to a cleaning water tank by a pipe via a supply pump and a switching valve. A cleaning device for a piston-type filling machine that is connected so that cleaning water can be freely switched between forward and reverse directions.