JPH0426322Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an apparatus for sterilizing the inner wall of a container using a sterilizing agent such as hydrogen peroxide.

BACKGROUND TECHNOLOGY Aseptic packaging systems are a method of preserving the freshness of contents for a long period of time because the contents are sterilized for a short period of time at high temperatures, then filled and sealed aseptically. As shown in FIG. 2, in this aseptic packaging system 1, after a container 3 molded in a box making section 2 is inspected by a molding defect detection section 4, a sterilizing agent is sprayed in a sterilization processing device 5.
After passing through the UV lamp irradiation section 6, it is dried in a hot air drying section 7, and passes through a liquid filling section 8, a top heating section 9, and a top pressure sealing section 10, thereby completing the filling and packaging process under aseptic conditions. In this sterilization processing apparatus 5, the containers are raised and lowered to receive the sterilant spray from the injection nozzle, but when the containers are raised and lowered, the light containers may overturn or shift their positions due to vibration or shaking. Therefore, it was difficult to receive the spray from the injection nozzle in a fixed position. Therefore, in the prior art, as shown in FIG. 3, the upper end of the conveyed container 3 is pressed by a flat presser claw 11 so that the container rises without swinging, and the sterilant injection nozzle 12 is stopped in a state where it is accommodated in the container 3,
After receiving the sterilant spray from the injection nozzle 12, it descends and moves to the next UV lamp irradiation section 6 along the conveyance system. The mist of the sterilizing agent sprayed on the inner surface of the container 3 also adheres to the lower surface of the presser claw 11 that presses the upper end of the container 3, and this sterilizing agent spreads to the water droplets 13.
There is a drawback that this results in so-called droplets falling into the container, which may remain during drying.

Problems that the invention aims to solve: In a sterilization device that sterilizes the inside of a container by spraying a sterilizing agent from an injection nozzle, it is possible to ensure that the injection nozzle Sterilization eliminates the so-called drop-off, in which the container is held down with a presser claw so that it can be inserted into the container, and the sterilant mist sprayed from the nozzle adheres to the underside of the presser claw and falls into the container as water droplets. The purpose is to provide a processing device.

Means for Solving the Problems Therefore, in this invention, in a sterilization processing apparatus in which a container lifting device is provided directly below a sterilizing agent injection nozzle that hangs down from a machine frame, the upper edge of the container is The presser claw, which moves up and down while holding down, is structured like an inverted rain gutter, and its attachment end is curved downward outside the container, and an air jet is installed at a position opposite to the presser claw, sandwiching the container under the sterilant injection nozzle. The sterilizing agent water droplets attached to the back surface of the presser claw are removed from the container along the back surface.

Function The container, which is held in place by holding the upper end of the container with a reverse gutter-like presser claw, rises until the sterilant injection nozzle is inserted, and then descends to receive the sterilant spray. During the descent, the air blown out from the blow-off air outlet blows off the sterilizing agent that adheres to the presser claw, causing it to fall out of the container by flowing down along the back surface of the reverse gutter shape, thereby preventing the particles from falling into the container. Eliminate.

Example Embodiments of the present invention will be described with reference to the drawings.

Figure 1 is a perspective view of the sterilization device of the present invention;
The figure is an explanatory diagram showing a sterile packaging system, and FIG. 3 is a perspective view of a conventional sterilization processing apparatus.

The injection nozzle 12 is suspended and fixed to the machine frame (not shown) of the sterile packaging system 1, and together with a lifting device (not shown) for placing the container 3 provided directly below the injection nozzle 12, the injection nozzle 12 is located in the direction of the arrow. A presser claw 14 that moves up and down as shown in FIG. The presser claw 14 holds the container 3
The pressing part is in the shape of an inverted rain gutter 15, and the fixed part is in the form of a flat plate 17, and the inverted rain gutter part 15 at the container holding end is configured to be higher than the flat part 17 when viewed horizontally. Injection nozzle 12 on the lifting path of the container 3
A blow-off air outlet 18 is provided at a proper location facing the lower presser claw 14. The blow-air outlet 18 intermittently injects air at appropriate times to blow off the sterilizing agent adhering to the presser claw 14.

To explain the operation of the sterilization processing apparatus 5 configured in this way, the container 3 rises with its upper end being held down by both edges 16 of the inverted gutter-shaped holding claw 14, and the injection nozzle 12 is inserted. In this state, it is sprayed with sterilant and descends. As the injection nozzle 12 separates from the upper end of the container, the sterilizing agent attached to the presser claw 14 is removed by the air blown from the air outlet 18 while descending, and the sterilant adheres to the presser claw 14 in the shape of an inverted rain gutter.
The liquid is blown down along the four shapes from a high position (the holding part) to a low position (flat plate part), and falls 19 outside the container 3.

Benefits of the device Overturning due to shaking and vibration when the container is raised and lowered is prevented by the reverse gutter-like presser claw that presses the top of the container and raises it, and the injection nozzle can always be inserted into the container in the fixed position, ensuring sterilization. Not only can the sterilizing agent adhered to the presser claw be blown away by the blowing air, but it can be discharged outside the container, so there is no dripping and uniform container sterilization can be achieved.

[Brief explanation of drawings]

Figure 1 is a perspective view of the sterilization device of the present invention;
The figure is an explanatory diagram showing a sterile packaging system, and FIG. 3 is a perspective view of a conventional sterilization processing apparatus. 3... Container, 5... Sterilization processing device, 12... Sterilizing agent injection nozzle, 14... Presser claw, 15... Reverse rain gutter, 18... Blowing air outlet.

Claims (1)

[Scope of utility model registration request] In a sterilization processing apparatus in which a container lifting device is provided directly below a sterilizing agent injection nozzle hanging from a machine frame, a presser claw that moves up and down while pressing the upper end of the container in accordance with the lifting and lowering of the container lifting device is configured in the shape of an inverted rain gutter, The mounting end is curved downward outside the container, and a blow-off air outlet is provided at a position opposite to the presser claw with the container under the sterilizer injection nozzle, so that the sterilant water droplets adhering to the back surface of the presser claw are removed along the back surface. A sterilization processing device characterized in that the sterilization is carried out outside the container.