JP2011136753A - Filling nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filling nozzle capable of easily mounting/dismounting for cleaning or maintenance and capable of sufficiently fastening a mesh. <P>SOLUTION: In the filling nozzle, the nozzle tip end 14 includes an upper opening 43 that houses the lowest end of the nozzle body, an engagement groove 42 that engages with the nozzle body via a bayonet, a discharge port 44 formed at the lowest end; an engagement step that prevents fall of the mesh from the discharge port, and fastening-securing spring 45 that secures the fastening of the mesh and engagement thereof with the nozzle body, while the fastening-securing spring is composed of rings 45a having dimensions that allow themselves to pass through the upper opening, opposing each other at the lowest end and topmost end of the nozzle body, and of springs 45b whose edge parts are integrally embedded in the lower parts of the rings, whereas the force produced by the engagement of nozzle body via a bayonet deforms the springs, thereby adding restoration force of the springs to the periphery of the mesh downward and outward for actualization of fastening of the mesh, thus, securing the engagement thereof with the nozzle body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a filling nozzle used in a liquid quantitative filling apparatus that fills a container with a liquid such as a fluid food.

The container 15 for filling liquid foods such as juice and milk shown in FIG. 4 can be obtained by using a liquid quantitative filling apparatus for filling the empty containers with a fixed amount of liquid.

In the filling nozzle of the liquid constant-quantity filling apparatus, a vertical cylindrical nozzle body provided with an annular upward receiving surface and a downward pressing surface facing each other at a predetermined interval on the inner surface of the lower end opening edge, and a receiving surface and a pressing surface A plurality of perforated plates (mesh) that are arranged in multiple stages with a peripheral portion interposed therebetween and prevent the liquid from flowing under its own weight due to the surface tension of the liquid in the nozzle body, and the peripheries of adjacent perforated plates (mesh) And an annular spacer interposed between the portions, and the holes of the perforated plate (mesh) are formed so as to be scattered all over the periphery including the peripheral portion of the perforated plate (mesh). (See Patent Document 1)
In addition, a plurality of perforated plates (mesh) that prevent the liquid from flowing down due to the surface tension of the liquid are arranged in multiple stages at the lower end opening of the vertical cylindrical nozzle body, and between the peripheries of adjacent perforated plates (mesh) An annular spacer is interposed, and an annular holeless portion extending around the entire circumference of the perforated plate (mesh) is provided. (See Patent Document 2)

A holder holds the mesh in the nozzle. The holder has a three-dimensional shape in which a rod-shaped material having a spring characteristic is a closed loop. When the holder is attached to and detached from the nozzle, the outer shape of the holder is reduced due to the spring characteristic, and the attachment to the nozzle can be easily performed. This three-dimensional shape is a three-dimensional shape formed by forming a rod-shaped material in a closed loop in a rhombus shape and bending it at an acute angle with a straight line connecting opposite vertices as an axis. Alternatively, the rod-shaped material is defined as two parallel straight lines. It is a three-dimensional shape formed in a closed loop with two substantially circular arc curves connecting them and bent vertically at the intersection of the straight line and the curve. (See Patent Document 3)

Japanese Utility Model Publication No. 04-97010 JP 09-99914 A JP 2002-12206 A

Conventional filling nozzles have inconveniences such as complicated installation and removal work for cleaning and maintenance, and insufficient fixing of the perforated plate (mesh).
The present invention meets the above-mentioned needs and desires, and provides a filling nozzle that can be easily attached and detached for cleaning and maintenance, and can sufficiently fix a porous plate (mesh). The purpose is to do.

The filling nozzle of the present invention that solves this problem is a filling nozzle that is disposed at a position at which a liquid constant-quantity filling device that fills a container with a fixed amount of liquid is discharged into the container,
It consists of a nozzle body, a mesh that is arranged at the discharge port that discharges liquid from the nozzle body, and a nozzle tip that is removably attached to the lower end of the nozzle body with the mesh housed in the bottom facing the discharge port. ,
The nozzle tip includes an upper opening that accommodates the lower end of the nozzle body, an engagement groove that is engaged by the nozzle body and the bayonet, an ejection port that is formed at the lower end, and an engagement stage that prevents the mesh from dropping from the ejection port. And a securing spring for securing the mesh and securing the engagement with the nozzle body,
The securing spring is composed of a ring that can pass through the upper opening and is opposed to the lower end and the upper end of the nozzle body, and a spring in which the end is integrally embedded in the lower part of the ring, and is engaged by the nozzle body and the bayonet. The spring is deformed by the combined force, the mesh is fixed downward and outward, the restoring force of the spring is added, the mesh is fixed, and the engagement with the nozzle body is secured.
It is characterized by that.

According to the present invention as described above, the following advantageous effects can be obtained and remarkable effects can be obtained.
The filling nozzle of the present invention is disposed in a liquid fixed-quantity filling device that fills a container with liquid in a fixed amount. The filling nozzle is disposed at a position for discharging the liquid into the container, and fills the container with liquid food from the opening of the container.
The filling nozzle is a vertical cylindrical nozzle body, a mesh disposed at the discharge port for discharging liquid from the nozzle body, and a mesh that is fixed at the bottom facing the discharge port, and is detachably attached to the lower end of the nozzle body And a nozzle tip.

The liquid descends and passes through the inside of the cylinder of the nozzle body, and is discharged from the lower end discharge port of the nozzle body. A mesh is disposed at the discharge port. Since this mesh fills the container in fixed amounts, the liquid is prevented from flowing down due to the surface tension of the liquid.
The nozzle tip is housed and fixed at the bottom facing the discharge port, and is detachably attached to the lower end of the nozzle body. By attaching and detaching the nozzle tip, the mesh that needs the most cleaning and maintenance among the filling nozzles can be easily removed and attached.

The nozzle tip includes an upper opening that accommodates the lower end of the nozzle body, an engagement groove that is engaged by the nozzle body and the bayonet, an ejection port that is formed at the lower end, and an engagement stage that prevents the mesh from dropping from the ejection port. And a securing spring for securing the mesh and securing the engagement with the nozzle body.
The liquid food flowing from the nozzle body flows in from the upper opening at the nozzle tip and exits from the discharge port formed at the lower end. The nozzle tip portion accommodates the lower end of the nozzle body at the upper opening, and engages with the engagement groove by a bayonet system with the nozzle body.
Here, the bayonet has two to four claw portions and grooves attached to the nozzle body and the nozzle tip, and can be attached by inserting the nozzle tip into the claw and the groove and twisting them as they are.

The nozzle tip accommodates the mesh at the bottom facing the discharge port. The mesh is caught by the engagement step at the tip of the nozzle and is prevented from falling. The mesh supported by the engaging step from below is further fixed by a fixing securing spring.
The fixed securing spring includes a ring having a size that can pass through the upper opening and facing the lower end and the upper end of the nozzle body, and a spring in which the end is integrally embedded in the lower part of the ring.
With the above structure, the spring is deformed by the force of the engagement between the nozzle body and the bayonet, the spring is deformed around the mesh downward and outward, the restoring force of the spring is added, and the mesh is fixed and engaged with the nozzle body. Secure.

With the spring for securing the filling nozzle of the present invention, the mesh and the tip of the nozzle can be easily attached and removed for cleaning and maintenance.
On the other hand, the porous plate (mesh) can be sufficiently fixed by the spring of the securing securing spring.
Since the spring of the securing securing spring adds the restoring force of the spring downward and outward around the mesh, the mesh at the weak central portion is not damaged mechanically.
Furthermore, since the spring and the ring of the securing spring are positioned in the inner peripheral portion of the nozzle tip, and the central portion and the central portion are hollow, there is no unnecessary thing that obstructs the flow of the liquid food.

It is a filling nozzle example by this invention, Comprising: It is a perspective view which shows a mode that a securing spring is inserted in a nozzle front-end | tip part. It is an example of a filling nozzle according to the present invention, and is a cross-sectional view showing a state where a fixing securing spring is attached to the nozzle tip. It is a perspective view of the fixation ensuring spring of the example of a filling nozzle by this invention. It is a perspective view of the packaging container example (A) before filling, and the packaging container example (B) after filling sealing. It is a perspective sectional view showing a liquid fixed-quantity filling device provided with a filling nozzle. It is the disassembled perspective view which removed the mesh from the nozzle front-end | tip part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 5 schematically shows a reference example of the liquid fixed amount filling apparatus.
This liquid metering and filling device includes a tank 11 for storing liquid food, a reciprocating measuring pump 12 for measuring liquid food in the tank 11, a filling nozzle 13 connected to the measuring pump 12, and a nozzle tip 14. Consists of. The liquid food in the tank 11 is metered by the metering pump 12 and filled in a carton (container) 15 having an upper end opened through a filling nozzle 13 and a nozzle tip 14.
An example of the liquid constant-quantity filling device is disposed above the conveyance path of the containers on the conveyor.

The liquid food is weighed and filled in a suction mode in which the metering pump 12 is driven to suck in the liquid food from the tank 11 and a delivery mode in which the sucked liquid food is sent out to the filling nozzle 13. The figure shows the state of the delivery mode, and the liquid food is delivered in the direction of the arrow.

A discharge opening is formed at the bottom of the tank 11, and the inside of the tank 11 communicates with the measuring space of the measuring pump 12 through the discharge opening and the suction valve 19. A valve body 22 is attached below the discharge opening, and a valve housing 23 is attached below the valve body 22. A filling nozzle 13 and a nozzle tip portion 14 are attached below the valve housing 23.

With reference to FIGS. 1-3, the Example of the filling nozzle by this invention is described roughly.
The filling nozzle 13 is disposed in a liquid fixed amount filling apparatus that fills a container with liquid in a fixed amount. The filling nozzle 13 is disposed at a position for discharging liquid to the container 15 and fills the container with liquid food from the opening of the container 15.
The filling nozzle 13 includes a vertical cylindrical nozzle body 13, a mesh 41 disposed at a discharge port for discharging liquid from the nozzle body, and a mesh that is accommodated and fixed at the bottom facing the discharge port, and is attached to and detached from the lower end of the nozzle body. It consists of a nozzle tip 14 that can be freely attached.

The liquid descends and passes through the inside of the cylinder of the nozzle body 13 and is discharged from the lower end discharge port 44 of the nozzle body. A mesh is disposed at the discharge port. Since this mesh fills the container in fixed amounts, the liquid is prevented from flowing down due to the surface tension of the liquid.
The nozzle tip is accommodated and fixed on the bottom facing the discharge port 44 and is detachably attached to the lower end 13a of the nozzle body. By attaching and detaching the nozzle tip 14, the mesh 41 that requires the most cleaning and maintenance among the filling nozzles can be easily removed and attached.

The nozzle tip 14 includes an upper opening 43 that accommodates the lower end 13a of the nozzle body, an engagement groove 42 that is engaged with the nozzle body 13 by a bayonet, a discharge port 44 formed at the lower end, and a mesh formed from the discharge port 44. It has an engagement stage 14a for preventing the fall and a securing spring 45 for securing the mesh 41 and securing the engagement with the nozzle body.
The liquid food flowing from the nozzle body 13 flows in from the upper opening 43 at the nozzle tip and exits from the discharge port 44 formed at the lower end. The nozzle tip 14 accommodates the nozzle body lower end 13a in the upper opening 43, and engages with the engagement groove 42 by the bayonet system with the nozzle body 13.
Here, the bayonet has two to four claw portions and grooves attached to the nozzle body 13 and the nozzle tip portion 14. The nozzle tip portion is inserted, the claw and the groove are fitted, and can be attached by twisting as it is. Become.

The nozzle tip portion 14 accommodates meshes 41a, 41b, and 41c at the bottom facing the discharge port. The mesh is caught by the engagement step 14a at the nozzle tip and is prevented from falling. The mesh 44 supported by the engaging step 14 a from below is further fixed by a fixing securing spring 45.
The securing securing spring 45 includes a ring 45a having a size capable of passing through the upper opening 43 and facing the lower end 13a of the nozzle body at the upper end, and a spring 45b having an end portion integrally embedded in the lower portion of the ring.
With the above structure, the spring 45b is deformed by the force of the engagement between the nozzle body 13 and the bayonet, and the restoring force of the spring is applied to the periphery of the mesh 41 downward and outward to fix the mesh. Ensuring the engagement.

The fixing securing spring 45 of the filling nozzle of the embodiment makes it easy to attach and remove the meshes 41a, 41b, 41c and the nozzle tip portion 14 for cleaning and maintenance management.
The mesh 41 is sufficiently fixed by the spring 45 b of the fixing securing spring 45.
The spring 45b of the securing securing spring 45 applies the restoring force of the spring downward and outward around the mesh 41, so that the mechanically weak central mesh is not damaged.
Further, the spring 45b and the ring 45a of the securing springs are located in the inner peripheral portion of the nozzle tip portion 14, and the central portion and the central portion are hollow, so that unnecessary things that obstruct the flow of liquid food There is no.
In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

The present invention can be applied to the production of packaging and filling beverages such as juice and milk in packaging containers.

11 .. Tank 12 .. Metering pump 13 .. Filling nozzle 14 .. Nozzle tip 14 a .. Engagement stage 41 .. Mesh 45 .. Secure securing spring 42 .. Engagement groove

Claims (1)

A liquid fixed amount filling device for filling a container with liquid in a fixed amount is a filling nozzle disposed at a position for discharging the liquid into the container,
A nozzle body, a mesh disposed at a discharge port for discharging liquid from the nozzle body, and a nozzle tip which is removably attached to the lower end of the nozzle body by accommodating and fixing the mesh at the bottom facing the discharge port And consists of
The nozzle tip includes an upper opening that accommodates the lower end of the nozzle body, an engagement groove that is engaged with the nozzle body by a bayonet, a discharge port formed at the lower end, and a drop of the mesh from the discharge port. An engagement stage for preventing, and a securing spring for securing the mesh and securing the engagement with the nozzle body,
The fixing securing spring includes a ring having a size capable of passing through the upper opening and facing the lower end and the upper end of the nozzle body, and a spring in which the end is integrally embedded in the lower part of the ring. The spring is deformed by the force of the engagement between the main body and the bayonet, and the restoring force of the spring is applied downward and outward around the mesh to fix the mesh and engage the nozzle body. To secure,
A filling nozzle characterized by that.