JPS5942398Y2 - Simple switching device for filling amount in fluid filling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a simple filling amount switching device in a fluid filling machine.

Conventionally, in a liquid beverage filling machine such as milk or juice, the filling amount for a filling container such as a paper container can be changed by stopping the machine and moving the switching lever on the main body of the machine directly by hand. However, it is not necessarily easy to do so, and the machine must be stopped once, which is not considered desirable from the viewpoint of the operating rate of the machine.

However, filling containers with various capacities are available depending on demand, and it has been desired to be able to easily and quickly switch filling containers efficiently.

The present invention eliminates the above-mentioned drawbacks and provides a simple switching method for the filling amount in a fluid filling machine that can be changed extremely easily by setting the changeover switch on the control panel to the displayed filling amount. The purpose is to provide equipment.

Preferred embodiments of the present invention will be described below with reference to the drawings.

In the accompanying drawings, a filled fluid tank 1, such as milk or juice, has a bottom outlet pipe 2, which is provided with a one-way valve 3 to prevent backflow into the tank 1. The one-way valve 3 is normally prevented from outflowing fluid by a spring 4.

Connected to the end of the outlet pipe 2 is the upper end of a filling cylinder 5 in which a piston 6 is slidably arranged.

A main rod I that protrudes and extends from the lower end wall of the cylinder is connected to the piston 6, and an air flow port 9 having a filter 8 is provided adjacent to the lower end wall of the cylinder to facilitate sliding of the piston 6. .

A fluid supply pipe 10 is connected adjacent to the upper end of the cylinder 5, and its tip is connected to a nozzle 10. It is shaped like this and opens downward, and directly below it, a series of empty filling containers 11 such as paper bag containers are sequentially advanced by a conveyor or the like (not shown).
Stop directly below the nozzle 10° for one piece, and during that time nozzle 1
A predetermined amount of filling fluid is supplied from 0a, and after filling is completed, the next empty container 11 is stopped directly under the nozzle 10a and filled, and the filled container 11 is opened in the next processing step. is closed and sealed to complete the filling container.

For this purpose, a one-way valve 13 that is energized by a spring 12 and opens only in the outflow direction is disposed in the supply pipe 10, and when the piston 6 reciprocates, the one-way valves 3 and 13 cooperate to prevent the tank from opening. The filling fluid inside passes through the supply pipe 10 to the nozzle 10I! It is designed to be discharged from L.

The outflow from the nozzle 10a is performed in synchronization with the stop period of the sequential stepwise movement for filling the container 11.

In order to prevent fluid from being accidentally supplied when the container 11 is not directly below the nozzle for some reason, a detection means 14 such as a photo coupler is sequentially sent in series from directly below the nozzle 10a of the filling container 11. is also arranged corresponding to the temporary stop position of the container 11 on the upstream side, so that the container 1
1, the presence or absence of the container 11 directly below the nozzle 10a is detected and the fluid supply system is controlled as described later.

To produce the reciprocating movement of the piston 6, a horizontally extending flat abutment member 15 is fixed to the lower end of the rod I.

This abutment member 15 cooperates with an actuator 17 provided with a roller 16 that abuts on this abutment member 15.
7 is rod 19. L is connected to an air piston 19 that slides inside the air cylinder 18, and the air cylinder 18 is switched by switching a changeover switch on a control panel (not shown) according to the displayed filling amount.
The working fluid is supplied to either of the working fluid inflow/outflow pipes 20.21 communicating with both ends of the working fluid, and the working fluid is brought into contact with the working element 1T, and thus the roller 16, at different positions on the contact member 15, and the filling amount is adjusted as described below. Enables switching.

For this purpose, the air cylinder 18 and the actuator 17 are connected to the pivot 2.
The horizontal arm 238 in one direction of the bell crank lever 23 extends radially from the pivot shaft 22, which pivots around the pivot point 22. ) 22 changes, and accordingly, the moving distance of the actuator IT, that is, the roller 16 in the circumferential direction, that is, the vertical direction, changes for a predetermined swing angle of the lever 23,
As a result, the vertical movement distance of the abutting member 15 that the roller 16 abuts, and thus the piston stroke, changes, and the amount of fluid supplied changes.

The free end of the other arm 23b of the lever 23 is connected to the rotating eccentric cam 2.
The lever 23 is connected to a connecting rod 25 driven by an eccentric cam 24, and a reciprocating motion having a constant stroke determined by the amount of eccentricity of an eccentric cam 24 is applied to the lever 23.

As described above, in order to prevent the filling fluid from flowing out from the nozzle 10a when the container 11 is not below the nozzle 10a, the connecting member 26 is fixed to the rod I, and this connecting member 26 is connected to the air cylinder through the connecting rod 2T. It is connected to an air piston 29 that slides within 28.

Working fluid inflow and outflow pipes 30 and 31 communicate with the upper and lower ends of the air cylinder 28, and the filling piston 6, which is integrated with the main rod T, is connected to the air piston 29, which is integrated with the connecting rod 21.
and through the connecting member 26, it moves up and down with the same stroke during normal filling operation.

The stroke of the air piston 29 during the filling operation is given by the vertical movement of the roller 16 caused by the rotation of the eccentric cam 24.

When filling one composite paper container 11 is completed, the filling piston 6 and the air piston 29 are at the top dead center position, and at the time of filling, the detection device 14 detects that there is a paper container 11 to be filled next. When given information that does not
Air flows in from the working fluid inlet/outlet pipe 31 of the air cylinder 28 to restrain the air piston 29 at the top dead center position.

Therefore, when the filling piston 6 is also stopped at the top dead center position, the contact member 15 is disconnected from the roller 16, which is moved up and down by the eccentric cam 24, which is constantly rotated, so that no filling is performed.

If the third paper container 11 is moved directly below the nozzle 101, the working fluid inflow/outflow pipe 30 is
As more air flows into the air cylinder 28 and pushes the air cylinder 29 downward, the filling piston 6 integrated with it also moves downward and the main rod 1
The roller 16, which is being moved up and down, comes into contact with the contact member 15 at the lower end of the container to start the filling operation.

That is, the abutment member 15 is pressed by the roller 16, which has just started descending from the top dead center, and descends together with the roller 16.

In this way, the normal filling operation is repeated as long as the paper container 11 remains.

A rod 19 connecting the actuator 17 to the air piston 19
The position of the actuator 11 is adjusted by screwing the screw provided on the actuator 1T into a screw engagement with the screw of the rod 198 connecting to the air piston 19 and rotating it appropriately, thereby supplying the 0-stroke fluid of the Rondoor. It is also possible to adjust the amount.

According to the filling machine of the present invention constructed as described above, the filling amount can be changed extremely easily depending on the type of container 11 by simply changing the changeover switch on the control panel.

[Brief explanation of the drawing]

The accompanying drawings are schematic illustrations of a fluid filling machine incorporating the present invention. 1...Tank, 2...Bottom outlet pipe, 3
, 13... 1-way valve, 4, 12... 1
Directional valve spring, 5...Filling cylinder 6...
...Filling piston, 7...Main rod,
8... Sterilizing filter 9... Air intake hole, 10... Fluid supply pipe, 10...
Tuzzle 11... Filling container, 14...
Detection device, 15... Contact member, 16...
・Roller 18.28...Air cylinder, 19.29...Air piston, 20.21
．． 30.31... Working fluid inflow and outflow pipe, 23...
... Bell crank lever 24 ... Rotating eccentric cam 26 ... Connection member.

Claims (4)

[Scope of utility model registration request] (1) A filling cylinder whose upper end is connected to an outlet pipe provided at the bottom of the fluid tank via a first one-way valve for backflow prevention, and which has a sliding piston inside, and whose upper end is connected to the upper end of the filling cylinder. a fluid supply pipe having a fluid discharge nozzle at its lower end and a second one-way valve for preventing backflow in the middle; a main rond that extends downwardly by slidingly extending therethrough and having a horizontally extending abutting member fixed to its lower end; The lever includes an arm that swings in the vertical direction around a pivot point, and an actuator that is disposed on the arm of the lever and contacts the abutting member, and the arm of the lever swings in the vertical direction. The movement gives a vertical movement to the main rod through the actuator and the abutting member to move the piston in the filling cylinder in the vertical direction, thereby causing the first and second one-way valves to move in the vertical direction. In the fluid filling machine, the actuator cooperates with the fluid filling machine to supply fluid from the fluid tank into a filling container disposed below the fluid discharge nozzle in an amount corresponding to the stroke of the piston. A changeover switch is provided that is movable in the longitudinal direction of the arm of the lever and is disposed on the control panel of the fluid filling machine, and that can change and fix the distance of the actuator from the pivot point when operated. By selectively adjusting the distance of the actuator from the pivot point, the amount of vertical movement of the actuator relative to the predetermined vertical swing angle of the arm of the lever is controlled. 1. A simple switching device for a filling amount in a fluid filling machine, characterized in that the amount of fluid supplied into a filling container can be adjusted. (2) The actuator is configured to be driven by a cylinder device attached to the arm of the lever so as to operate horizontally, and the cylinder device is provided with a working fluid inlet and an outlet at both ends, respectively. and fixing the actuator at a first or second position at a different distance from the pivot point by operating the changeover switch and supplying working fluid to one or the other working fluid inflow and outflow port. A simple switching device for the filling amount in a fluid filling machine according to claim 1, which is capable of supplying fluid into a filling container at two different filling amounts. . (3) The lever is configured as a bell crank lever consisting of the arm in which the cylinder device and the actuator are arranged, and a second arm, and the second arm has a connection that is reciprocated by a rotating eccentric cam. The fluid according to any one of claims 1 or 2, wherein the lever is connected to the lever, thereby imparting the predetermined vertical swinging motion to the lever. A simple switching device for filling amount in a filling machine. (4) The container is intermittently sent to the lower side of the fluid discharge nozzle in synchronization with the reciprocating rocking movement of the lever, and fluid is sequentially supplied to the fluid discharge nozzle that stops when the piston moves upward. A simple filling amount switching device in a fluid filling machine according to claim 1, wherein any one of claims 1 to 3 has been registered as a utility model.