JPS581689A - Filling nozzle for liquid - 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 The present invention relates to a liquid filling nozzle in a filling machine for filling containers or the like with liquid.

Conventionally, a wire mesh filling nozzle is known as this type of nozzle. The main parts of a filling machine equipped with this nozzle are shown in FIG. Filling jrk tank (1), liquid filling-rl with top and bottom chatki valves +31 +4+, filling cylinder (6), piece stone (7) and continuous pipe (8)
The nozzle body (5) is provided at the lower end of the liquid filling valve (2).
A liquid filling nozzle (5) with a wire mesh (9) attached to the opening at the lower end is detachably attached. Nozzle (5)
Immediately below, a container to be filled (inside) is held on a lifting platform (1) that can be raised and lowered freely. Therefore, to fill the container (B) with liquid,
First, raise the container (inside the container) and insert the nozzle (into the lower part of the container (B)).
5) Leave the bottom end in position.

Then, when the piston (7) is lowered, the Chatsuki valve (3)
) is opened and the liquid in the filling liquid tank (1) is discharged through the liquid filling valve (2).
) and the filling cylinder (6) is filled. Then, when the piston (7) is raised, the check valve (3) closes and the check valve (4) opens, and the liquid in 51 flows into the container through the wire mesh (9) of the nozzle (5). leaks inside. At this time, the container 03) is lowered as the piston (7) rises. Piston (7)
Filling is completed when reaches the rising limit. Even after filling is completed, liquid remains in the nozzle (5) and the wire mesh (9)
Does not drip due to surface tension.

By the way, conventional wire mesh filling nozzles can be used to fill liquids such as milk, which drain well when filling is completed and have good fluidity, while keeping the filling amount constant and accurate, and filling at high speed. can do. However, when pulp or fibrous substances are mixed in one filling liquid, the wire mesh acts as a resistance and the filling liquid flows slowly, and the liquid drains poorly, making it impossible to perform high-speed filling.

For this reason, the filling machine is currently operated at a reduced filling speed, making the overall efficiency of the filling machine extremely poor.

This invention eliminates the drawbacks of such conventional nozzles,
It is an object of the present invention to improve the filling efficiency of a filling machine by providing a nozzle that can perform high-speed filling even when filling a filling liquid that does not contain any of the above-mentioned contaminants.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In Fig. 2, a filling nozzle body α that can be attached to and detached from the filling machine is shown.
The opening/closing damper attached to the lower end opening of the D1 nozzle body (the coil spring T13 whose upper end is attached to the upper part of the IQ1 nozzle body (111), the connecting member α and the connecting member α connecting the lower end of the fill spring OQ and the opening/closing damper 02, A liquid-filled nozzle 0 is shown, consisting of a resistor (151) attached to the connecting member α.

The cylindrical nozzle body αD has an annular engagement protrusion αη formed on the outer circumferential surface of its upper end, and has a metal fitting (161) attached to the lower end of the filling valve (2) of the filling machine.

Ru. A coil spring latching member +191, which is approximately Y-shaped or cross-shaped when viewed from the top, is fitted into the upper inner diameter portion (IIA) of the nozzle body (11), and the coil spring latching member +191 is fitted between the arms (19A) of the upper end of the nozzle body (11). A coil spring suspension ring agJ is fixed to the center of the lower surface of the coil spring retaining member (191) through which the filling liquid flows.A threaded portion (a) is provided on the outer peripheral surface of the lower end of the nozzle body 01. , opening/closing damper mounting cylinder (2
1) The upper end female thread part is screwed. At the lower end of this opening/closing damper mounting cylinder (21), a damper mounting hinge part @ is protruded at a symmetrical position from the center.
(not shown) is opened. - The opening/closing damper (121 is approximately in the shape of an inverted umbrella, and consists of left and right damper units (12AX12B) divided into two from the center. Each damper unit (12A) (12B) has a hinge part □□ at the center of the outer periphery. □ is provided, and a horizontal pin hole (5
) is open. The damper mounting hinge part is fitted into this hinge part, and the hinge pin is inserted into the rainwater mobin hole. Both dampers integrated (12A) (
12B), there is a connecting member latch on each side.
The tool □□□ is provided protrudingly.

The connecting member α is a long rod (
14A), one end of which is connected to the lower end of the long rod (14A),
Two short wooden rods (14B) whose other ends are respectively latched to connecting member latching metal fittings with integrated dampers (12A) and (12B).
It consists of (14C). And long bar (14A)
A plastic spherical resistor α is fixed to the upper end of the resistor. The state in which the opening/closing damper 02 is closed by the coil spring Q3+ attached between the hanging ring and the upper end of the long rod (14A) is shown by the solid line in FIG. In this state, both dampers (12A) (12
The dividing surfaces of B) are in close contact with each other, and the upper end surface of their outer periphery and the lower end surface of the opening/closing damper mounting cylinder (21) are in close contact with each other, so that the liquid filled in the nozzle +101 is completely drained. After the cutting is done, no air is mixed in yet.

Next, a filling operation using this liquid filling nozzle Oa will be described. First, when using a conventional nozzle,
Container CB)'f: Raise the nozzle (10) so that the lower end of the nozzle (10) is exposed at the lower part of the container (B) (the inside of the container in this case is shown by the chain line in Fig. 2), and then open the piston. (7
) to fill the tank (1) with the Ji liquid. Then, when the piston (7) is raised, the filling valve (2) is opened.
) increases, the check valve (4) opens, and the hydraulic pressure within the nozzle body α1) increases. Nozzle body αl)
When the liquid pressure inside reaches the set pressure, the open/close dampers (12A) (12B) are pushed open against the force of the fill spring Q3), and the liquid flows out into the container (B).

As the container (B) is filled with liquid, the container (B)
is gradually lowered. When the liquid flow rate becomes faster and the filling amount increases, the liquid pressure acting on the resistor α9 increases and the coil spring αj is further stretched, so the damper opening becomes larger and more liquid flows out. And the piston (7
) approaches the rising limit and filling is nearly completed, the liquid flow rate decreases and the damper opening degree becomes smaller due to the force of the coil spring f131. In this way, the damper opening degree is automatically adjusted according to the liquid flow rate, and optimal filling, especially high-speed filling, is performed with high accuracy. When the liquid filling is completed, the nozzle body tt
The lower end of the damper unit (12A) (12B) is completely closed. The filled container (1) is carried out to the next process.

Subsequently, the following empty containers are held on the lifting platform, so that
Continuous filling operations are carried out.

As described above in detail, the liquid filling nozzle according to the present invention has a lower end opening that is closed by a spring to ensure that the liquid runs out and prevents air from getting in, and that is automatically closed by a spring depending on the liquid flow rate and liquid pressure passing through the inside. Equipped with an opening/closing damper that adjusts the damper opening degree, and does not require wire mesh, etc., so it is possible to fill liquids containing pulp and fibers at high speed and with high accuracy. can be done. Therefore, the filling operation can be carried out efficiently without the filling nozzle reducing the capacity of the filling machine as a whole.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the main parts of a liquid filling machine equipped with a conventional wire mesh filling nozzle. FIG. 2 is a central vertical sectional view of the filling nozzle, showing an embodiment of the present invention. αα...Liquid filling nozzle, (III...Filling nozzle body, Oz...e opening/closing damper, (131...Coil spring, t14)...Connecting member, (I51...Resistor.) 4 people outside

Claims (1)

[Claims] A filling nozzle body +111 that is detachable from the filling machine, an opening/closing damper O2 attached to the lower end opening of the nozzle body, a coil spring (131) whose upper end is attached to the upper part of the nozzle body CII, and a lower end of the coil spring 031. A liquid filling nozzle consisting of a continuous member connecting the opening/closing damper 04 and a resistor (151) attached to the continuous member.