JPH0680605U - Liquid draining mechanism of liquid filling nozzle - Google Patents

Abstract

(57) [Summary] [Purpose] The liquid retained by surface tension at a large number of thin tube outlets provided at the liquid outlet of the liquid filling nozzle may chain even if it drips from any thin tube. Prevents the liquid from dripping from each thin tube. In a nozzle for filling a liquid in which a liquid outlet 2 of a nozzle 1 is composed of a large number of thin tubes 4 having gaps between them, a large number of liquid outflow holes 6 are provided above the thin tube 4 and an upper end of the thin tube 4. An elevating plate 5 having a lid 7 for opening and closing the opening is provided. The lift plate 5 is connected to the lower part of the central shaft 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nozzle used for filling and filling a container with liquid such as milk, juice, soy sauce, sauce, etc., and relates to a draining mechanism that prevents the residual liquid from dripping from the liquid outlet of the nozzle after the filling. Is.

[0002]

[Prior art]

 Conventionally, a liquid filling nozzle has been constituted by a large number of thin tubules whose liquid outlets have a gap between them.

[0003]

[Problems to be solved by the device]

 In the above-described conventional filling nozzle, since the liquid outlet of the nozzle is composed of a large number of thin tubes, the liquid passes through each thin tube, is rectified from the entire liquid outlet, and is ejected in a shower shape. Then, when the pressure on the piston is reduced and the check valve is closed, the flow of liquid also stops, the liquid remains in the nozzle, and surface tension is generated at each capillary outlet of the injection port, which holds the liquid. Since the capillaries have a length, and each capillaries have a gap between them and are independent bodies, each water droplet does not connect and aggregate, and the small inner diameter of the capillaries enhances the liquid retention force due to surface tension. And, because the area of the end face was small, it performed the draining action.

However, if the liquid held by the surface tension at each thin tube outlet drips from any one thin tube outlet, the balance between the internal pressure and the external pressure of the nozzle is broken, and air is dropped from the thin tube of the dropped liquid. When it enters the nozzle and air flow is generated inside the nozzle, the air in the nozzle flows from the upper opening to the lower opening of each capillary, and the liquid is continuously held at the outlet of each capillary with surface tension. There is a problem that liquid drops adhere to the exterior of the container and the device, resulting in loss of commercial value and obligatory cleaning of the device.

From the above point of view, the present invention is a liquid capable of preventing the liquid held at the outlet of each thin tube by surface tension from dripping from any one of the thin tubes in a chained manner. It is intended to provide a cutting mechanism.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a liquid filling nozzle in which a liquid outlet of a nozzle is composed of a large number of thin tubes having gaps, and a large number of liquid outflow holes above the thin tubes, and It is characterized in that an elevating plate having a lid for opening and closing the upper end opening of the thin tube is provided.

[0007]

[Action]

 The operation of the present invention will be described. When the liquid flows down, the lifting plate is positioned above as shown by the chain line in FIG. 1, the upper end opening of each thin tube is opened, and the liquid flows from the liquid outflow hole of the lifting plate to the thin tube. It passes and squirts out like a shower. Then, when the check valve (not shown) in the nozzle is closed and the flow of the liquid is stopped, the central axis of the nozzle is lowered, and the lifting plate is also lowered so that each lid provided on the lifting plate is a thin tube. The upper end opening is closed.

The liquid is held at the outlet of each thin tube by surface tension. When the liquid drips from any thin tube, air enters from the outside of the nozzle into the thin tube through the lower end opening of the thin tube. Since the upper end opening of the thin tube was blocked by the lid, it could not enter the nozzle.Therefore, no air flow was generated in the nozzle, and the pressure inside the nozzle and the pressure outside the nozzle were balanced. Therefore, the other tubules are not affected, and chain dripping is prevented.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical sectional side view showing a liquid draining mechanism of a liquid filling nozzle of the present invention. In the figure, 1 is a nozzle, 2 is a liquid outlet of the nozzle 1, a rubber support plate 3 is fitted in the liquid outlet 2, and a large number of through holes are formed in the support plate 3. The upper parts of the thin tubes 4, 4 ... Are inserted. The thin tubes 4 are suspended with a gap between them.

Reference numeral 5 denotes an elevating plate provided in the nozzle 1 above the thin tube 4. The elevating plate 5 is provided with a large number of liquid body outflow holes 6, 6, ... And an upper end opening portion of the thin tube 4. Are provided on the lower surface in a number corresponding to the thin tubes 4 so as to close the tubes. The lift plate 5 is connected to the lower end of the central shaft 8 of the nozzle 1, and the upper end of the central shaft 8 is connected to the rod of an air cylinder (not shown) provided at the top of the nozzle 1. Therefore, the lift plate 5 moves up and down together with the central shaft 8.

[0011]

[Effect of device]

 According to the present invention, when the liquid stops flowing down, the liquid is retained at the outlet of each thin tube by the surface tension, but even if the liquid drops from any thin tube, the air from outside the nozzle passes through the thin tube. Since it does not enter the nozzle, air flow does not occur at the liquid outlet in the nozzle, and it does not affect the hanging liquid of other thin tubes. Therefore, it is a useful idea because the liquid drops as in the past and the liquid adheres to the device and the exterior of the container, losing the commercial value and eliminating the cleaning of the device.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a liquid draining mechanism of a liquid filling nozzle of the present invention.

[Explanation of symbols]

 1 Nozzle 2 Liquid Outlet 3 Support Plate 4 Capillary Tube 5 Elevating Plate 6 Liquid Outflow Hole 7 Lid 8 Center Axis

Claims (1)

[Scope of utility model registration request] 1. A nozzle for filling a liquid, wherein a liquid outlet of the nozzle is composed of a large number of thin tubes having a gap therebetween, and a large number of liquid outflow holes above the thin tube and an opening of an upper end of the thin tube are opened and closed. A liquid draining mechanism for a liquid filling nozzle, wherein an elevating plate having a lid is provided.