JPH0577892A - Nozzle head in filling machine for liquid - Google Patents

Abstract

PURPOSE:To solve the problems related to a filling machine for liquid, in which the filling operation is followed with cleaning of the passageways for the liquid using cleaning water and the cleaning water is discharged through a nozzle head provided at the terminal end of the liquid passageways, that it is difficult to recover the discharged cleaning water without allowing it to leak or fly about and that the apparatus specially for the recovery of the discharged water needs to be built on a large scale. CONSTITUTION:The nozzle case 16 for a nozzle head is made structurally capable of being tuned to a specific angle and a discharged water-receiving cup 37 is provided at the position to which the nozzle case 16 is tuned. When cleaning is carried out, the nozzle case 16 is turned and the water discharged from a nozzle hole 18 in the nozzle case 16 is poured into the discharged water- receiving cup 37.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle head structure of a liquid filling machine which can be easily washed when washing the liquid filling machine which has been filled with the liquid.

[0002]

2. Description of the Related Art FIG. 5 (A) is a schematic view showing an example of a conventional liquid filling machine, in which a plurality of nozzle heads 102 are arranged under the liquid storage tank 101 along the circumference thereof. A valve rod (not shown) provided in the upper part of the container head 103 is moved up and down to open and close a nozzle hole provided at the lower end of the nozzle head 102 so that the liquid stored in the liquid storage tank 101 is placed on the container mounting table 103 through the nozzle hole. Placed in a container (not shown)
Supply to.

Upon completion of the liquid filling operation, cleaning is performed to remove the liquid remaining in the liquid path from the liquid storage tank 101 to the nozzle holes. Cleaning is performed by the liquid storage tank 101.
The cleaning water injected into the nozzle head 102 is supplied into the nozzle head 102 through a liquid supply pipe (not shown), and is drained to the outside through the nozzle hole.

[0004]

In order to treat the drainage flowing out from the nozzle hole, as shown in FIG. 5 (A), when a gutter 104 is provided on the peripheral edge of the container mounting table 103, the nozzle hole The drained drainage flows over the container mounting table 103, flows into the gutter 104, and is drained to the outside via a drain pipe (not shown) communicating with the gutter 104. This wastewater treatment facility has an advantage that the installation cost is low and the preparation work for cleaning is simple, but there is an adverse effect that the container mounting table 103 and its surroundings become wet with cleaning.

As shown in FIG. 5B, the nozzle head 1
02, a horizontal moving type drain receiver 105 is provided, the drain receiver 105 is moved below the nozzle head 102 at the time of cleaning, and the drain receiver 105 is evacuated to the outside when cleaning is completed. However, the drainage receiver 105 cannot cover the lower end portion of the nozzle head 102, so that the drainage is scattered around.
Further, the drainage receiver 105 becomes large, and the nozzle head 102
Since the drainage receiver 105 occupies a large space in the vicinity of
Poor workability of filling and cleaning work.

When disassembling and cleaning the nozzle head, disassembling and assembling is troublesome and workability is poor. As shown in FIG. 5 (C), when the drainage cup 107 with the hose 106 is attached to or detached from the lower end of the nozzle head 102, there is no drawback that the drainage scatters around, but it takes time to attach and remove manually. There is such a problem.

As shown in FIG. 5D, the drain cup 10
In order to automatically attach / detach 7, the drainage cup 107 is provided with an elevating device and a lateral moving device (not shown). When the drainage cup 107 is moved to a position right below the nozzle head 102 and further raised, the drainage cup 107 causes the nozzle head to move. 1
Although it has an advantage that the drainage does not scatter to the surroundings because it is in close contact with the lower end portion of 02, and that there is no need for manual work, the whole apparatus becomes complicated and large because an elevating and moving device must be installed. Therefore, the disadvantage that the installation cost increases,
There is a drawback that it occupies a large space in the vicinity of the nozzle head 102. The present invention aims to solve such problems.

[0008]

In order to achieve the above object, the present invention provides a liquid storage tank in which a holder is rotatably mounted within a range of a predetermined angle, and a rotating means for rotating the holder. One end of a nozzle case provided in a cylindrical shape and fixed to the holder is connected to the liquid storage tank, and a nozzle hole that is opened and closed by a valve rod is provided at the other end to form a nozzle head. A transport device for transporting and positioning the container is provided, and a drainage receiving cup is provided on the side of the transport device at a position close to the nozzle hole when the holder rotates by a predetermined angle.

The drainage receiving cup is attached to a piston rod of a cup contacting / separating cylinder fixed to a peripheral portion of the liquid storage tank, and when the nozzle case is in a position rotated by a predetermined angle, the cup contacting cup is attached. The drainage receiving cup is brought into contact with and separated from the lower end of the nozzle case by the operation of the separating cylinder.

[0010]

In the nozzle head of the liquid filling machine configured as described above, after the liquid filling is completed, the holder is rotated by a predetermined angle by the rotating means, and is fixed to the holder and integrally rotated. The case is close to the drainage cup.

Next, when the cup contacting / separating cylinder is operated and the drainage receiving cup is pressed against the nozzle case, the nozzle hole is sealed by the drainage receiving cup, so that the cleaning water is passed through the liquid storage tank and the inside of the nozzle case. Then, it is discharged from the nozzle hole, but the drainage is received by the drainage receiving cup without leaking.

Upon completion of washing, the cup contacting / separating cylinder is operated to separate the drainage receiving cup from the nozzle case,
The holder and the nozzle case are rotated and returned to the old position by the rotating means, and the next liquid filling operation is waited for.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a main portion showing a nozzle head portion of a liquid filling machine, FIG. 2 is a vertical sectional view of FIG. 1, and FIG. FIG. 4 is a plan view of the drainage receiving cup viewed from the X direction in FIG. 1. As shown in FIG. 2, a mounting seat 2 is provided on the side wall surface of the liquid storage tank 1 provided at the center of the liquid filling machine, a screw hole 3 is screwed into the mounting seat 2, and one end of the support beam 4 is provided. The mounting flange 5 thus formed is provided with a hole 6, a bolt 7 inserted into the hole 6 is screwed into the screw hole 3, and the support beam 4 is fastened to the liquid storage tank 1.

A flange 9 is fastened to a mounting surface 8 provided at the other end of the support beam 4 with a screw (not shown), and an end portion of a tubular portion 10 is fitted into an inner peripheral surface formed on the flange 9. A flange 11 is provided around the outer peripheral surface of the tubular portion 10, and the flange 9 and the tubular portion 10 are fastened to the flange 9 by screws (not shown) to form a support member for supporting the nozzle head. It

The holder 12 rotatably mounted on the outer peripheral surface of the cylindrical portion 10 has a cylindrical portion 12a and a flange portion 12b protruding from the outer peripheral surface of the cylindrical portion 12a, and a tip portion of the flange portion 12b. A valve opening / closing cylinder 13 is attached to the cylinder 12, and a pinion 14 (see FIG. 1) is provided on the outer peripheral surface of the cylindrical portion 12a.

The tubular portion 12a is shown in FIG.
An arcuate hole (not shown) is formed at the right end of the center of the axis of the cylindrical portion 12a, and the tip of the pin 15 attached to the flange 9 is inserted into this arcuate hole. Therefore, the holder 12 can be rotated by a predetermined angle.

A nozzle case 16 is fitted to the left end of the cylindrical portion 12a, and a pin 17 inserted into a hole provided in the flange portion 12b is fitted in a hole provided in the nozzle case 16.
Therefore, the nozzle case 16 is integrally connected to the holder 12. A nozzle hole 18 is opened in the lower part of the nozzle case 16, a lid 19 is fitted in the upper part of the nozzle case 16, and a liquid passage 20 formed inside is provided with a liquid supply fitted to the inner surface of the tubular flange 10. It communicates with the liquid storage tank 1 via a pipe 21.

Inside the nozzle case 16, a valve rod 22 penetrating the lid 19 is vertically movably inserted, and an arm 24 is fixed to the tip of a piston rod 23 of the valve opening / closing cylinder 13.
A connecting rod 25 attached to the arm 24 is connected to the valve rod 22. Therefore, the vertical movement of the piston rod 23 causes the valve rod 22 to move.
A nozzle head that opens and closes to open and close the nozzle hole 18 to supply the liquid in the liquid passage 20 downward.

An L-shaped support base 26 is fixed to the flange 9 with screws 27, and a nozzle rotation cylinder 28 is attached to the L-shaped support base 26.
The rack 30 attached to the tip of the piston rod 29 of the above meshes with the pinion 14 (see FIG. 1). The nozzle rotating cylinder 28, the piston rod 29, the rack 30, and the pinion 14 constitute a rotating means for rotating the holder 12 and the nozzle case 16.

Two support columns 31 are erected on the surface of the flange 9 (see FIG. 3), and both ends of the fall prevention plate 32 are screwed to the tip surfaces of both support columns 31 so that the center portion of the fall prevention plate 32 is secured. A screw hole is screwed in the male screw 3 which is screwed into this screw hole.
3 has a conical tip (see FIG. 2), and a male screw 33
When is turned, the tip of the male screw 33 advances and retreats toward the center of rotation of the nozzle case 16.

The position of the male screw 33 is fixed by the set nut 35 while the tip of the male screw 33 is pressed against the nozzle case 16, and the nozzle case 16 is supported so as not to fall off, but the nozzle case 16 is removed. When necessary, the grip 3 that fixes the captive plate 32
Nozzle case 16 can be removed by loosening 4 and flipping off cap 32.

Below the nozzle case 16, a container holder 36 is provided on a transfer device (not shown) for mounting the container B (see FIG. 1), and the container B filled with the liquid is located directly below the nozzle hole 18. Positioned. A drainage receiving cup 37 is arranged at a position that does not interfere with the container B on the side of the transport device.

L-shaped fittings 38 on the flange 9
Is fixed with a screw 39, and the cup contacting / separating cylinder 40 screwed with the mounting fitting 38 is fixed to the peripheral portion of the liquid storage tank 1. The support arm 42 is fixed to the tip of the piston rod 41 of the cylinder 40, and the drainage receiving cup 37 is attached to the support arm 42 (see FIGS. 1 and 4).

The surface of the drainage receiving cup 37 is parallel to the lower surface of the rotated nozzle case 16, and when the piston rod 41 retracts into the cup contacting / separating cylinder, the surface of the drainage receiving cup 37 becomes the lower surface of the nozzle case 16. And the nozzle hole 18 is sealed. A drain pipe 43 is provided at the rear of the drain receiving cup 37.

Liquid filling by the liquid filling machine configured as described above and cleaning after filling the liquid will be described. When the liquid is filled, as shown by the solid line in FIG. 1, the nozzle head is in a state before rotation, the lower end surface of the nozzle case 16 faces downward, and the piston 41 of the cup contacting / separating cylinder 40 projects and drains. The receiving cup 37 is retracted obliquely downward to the left. When the container B is positioned directly below the nozzle hole 18, the valve opening / closing cylinder 13 operates to operate the piston rod 2
3 rises, the valve rod 22 that rises together with the piston rod 23 opens the nozzle hole 18, and the liquid in the liquid passage 20 flows out from the nozzle hole 18 and is filled in the container B.

After a predetermined time, the valve rod 22 descending together with the piston rod 23 closes the nozzle hole 18, and the container B is filled with a predetermined amount of liquid. The filling cycle as described above is repeated, and a large number of containers B are automatically filled with the liquid. When the filling of the liquid is completed, cleaning is performed by the following procedure in order to remove the liquid remaining in the liquid path in the liquid filling machine.

The cylinder 28 for rotating the nozzle is actuated so that the piston rod 29 projects and meshes with the rack 30.
Rotates clockwise in FIG. This rotation amount is regulated by the pin 15 inserted in the arc-shaped hole, and the pinion 1
4, the nozzle case 16 that rotates with the holder 12 is shown in FIG.
Stop at the position indicated by the chain line.

Next, the cup contacting / separating cylinder 40 is actuated to move the piston rod 41 in the direction for retracting into the cup contacting / separating cylinder 40, so that the drainage receiving cup 37 comes into close contact with the lower surface of the nozzle case 16. Next, when the valve opening / closing cylinder 13 is operated to raise the piston rod 23 and the nozzle hole 18 is opened by the rise of the valve rod 22, the wash water is supplied from the liquid storage tank 1. It flows out from the nozzle hole 18 via the tank 1, the liquid supply pipe 21, and the liquid passage 20, and is discharged to the drain pipe 43 from the drain receiving cup 37 without leaking.

When the cleaning is completed, the cup contacting / separating cylinder 40 is operated to move the drainage receiving cup 37 to the nozzle case 16.
After further separating, the nozzle rotation cylinder 28 is operated to rotate the holder 12 and the nozzle case 16 back to the old position shown by the solid line in FIG.

Since the present invention is configured as described above, all the preparations for cleaning are performed automatically, the labor required for the conventional cleaning preparation work is eliminated, and the cleaning water during the cleaning is eliminated. Also solved the problem of leaking and scattering and deteriorating the surrounding environment. Further, by inclining the nozzle head at a predetermined angle, the close contact operation of the drainage receiving cup is simplified, and the drainage receiving cup and its driving mechanism can be simplified and downsized.

[Brief description of drawings]

FIG. 1 is a front view of relevant parts showing a nozzle head portion of a liquid filling machine.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is an X arrow view of the drainage receiving cup viewed from the X direction in FIG. 1.

5 (A) to 5 (D) are schematic diagrams illustrating a cleaning device provided in a nozzle head of a conventional liquid filling machine.

[Explanation of symbols]

 B container 1 liquid storage tank 9 flange 10 tubular portion 12 holder 12a tubular portion 12b collar portion 13 valve opening / closing cylinder 14 pinion 16 nozzle case 18 nozzle hole 20 liquid passage 21 liquid supply pipe 22 valve rod 23 piston rod 28 for nozzle rotation Cylinder 29 Piston rod 30 Rack 37 Drainage receiving cup 40 Cylinder for connecting and disconnecting cup 41 Piston rod 43 Drain pipe

Claims (2)

[Claims] 1. A liquid storage tank in which a holder is rotatably mounted within a range of a predetermined angle and rotation means for rotating the holder is provided, and one end of a nozzle case fixed to the holder is attached to the liquid storage tank. A nozzle hole that is opened and closed by a valve rod at the other end to form a nozzle head, and a conveying device that conveys and positions a container is disposed below the nozzle hole, and a side of the conveying device is provided. A nozzle head for a liquid filling machine, further comprising a drain receiving cup provided at a position close to the nozzle hole when the holder is rotated by a predetermined angle. 2. The drainage receiving cup is attached to a piston rod of a cup contacting / separating cylinder fixed to a peripheral portion of the liquid storage tank, and when the nozzle case is at a position rotated by a predetermined angle, The nozzle head of a liquid filling machine according to claim 1, wherein the drainage receiving cup is brought into contact with and separated from a lower end portion of the nozzle case by the operation of a cup contacting / separating cylinder.