JPH09313575A - Wiring and piping to fluctuating rotary spray type retort sterilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring and piping connecting structure to a fluctuating rotary spray type retort sterilizer capable of connecting electric wiring, liquid piping, and air piping from the outside of a sterilizing tub to a rotary body rotatably set in the sterilizing tub. SOLUTION: A rotation center shaft 6 of a rotary body 2 set penetrating through inside and outside of a sterilizing tub 1 is structured by a triplet of large, medium, and small, and an electric wiring passage 16, a liquid passage 17, an air passage 18 are independently formed respectively between the triplet structured pipes, the electric wiring passage 16 is connected to outside electric equipment through a slip ring 8 outside the sterilizing tub 1, and an outside air supply/discharge means and an outside liquid supply/discharge means are connected to the air passage 18 and the liquid passage 17 through a rotary joint 7 outside the sterilizing tub 1 respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sterilization process of a product obtained by hermetically filling a container (pouch, canned product, bottled product, etc.) with contents such as food and medicine in a retort cycle process of heating, heating and cooling. The present invention relates to a wiring / piping connection structure for an oscillating rotary type spray retort sterilizer.

[0002]

2. Description of the Related Art Conventionally, a spray type retort sterilizer has been provided for this type of heat sterilization. This spray type retort sterilizer stacks multiple trays on which products are stacked and stores them in a sterilization tank, and sprays hot water or steam from a spray nozzle that is placed toward the gap between the trays to eject the product. After sterilizing by heating, the product is cooled by spraying cooling water from the spray nozzle (actual fair 3-3).
197, etc.).

In the above-mentioned spray type retort sterilizer, since the product is left to stand horizontally in the sterilization tank for heat sterilization, the effect of promoting heat transfer to the contents in the container is low. Especially,
If a large container contains a highly viscous liquid, the temperature change at the center will be significantly slowed. In such a case, since the heat sterilization treatment needs to be performed on the entire contents, it is necessary to continue spraying / spouting hot water or the like from the spray nozzle until the temperature at the center reaches the target value, and the treatment time is It was getting longer.

[0004] In order to enhance the effect of promoting heat transfer to the contents in the container and shorten the sterilization treatment time, the applicant of the present invention swings a tray on which products are placed and a spray nozzle in a sterilization tank. By moving the contents in the container to the left and right in the container (flow), the exchange of the center part with the surface layer and the peripheral part is promoted, the heat transfer promoting effect to the whole contents is enhanced, and the sterilization processing time is increased. Proposals have been made to reduce the length (see Japanese Patent Application Nos. 8-27806 and 8-27808).

However, when implementing the above proposal,
Pipes that supply hot water or cooling water from the outside, because it is necessary to oscillate the tray on which the product is mounted in the conventional spray type retort sterilizer and the spray nozzle that is placed toward the gap between the trays in the sterilization tank. In addition to the twisting of the tray, a new member for holding the tray during swinging and air piping for operating this tray holding member are newly required. A temperature detection sensor is installed to accurately and quickly complete the sterilization process of the product to be placed, and it has become necessary to take measures against the twisting of the electrical wiring to the sensor.

[0006]

SUMMARY OF THE INVENTION In the above proposal,
Although it is simply stated that the piping to the spray nozzle is performed by a rotary joint, it is not described how to structure the air piping to the tray pressing member and the electrical wiring to the sensor. It is a proposal for this structure.

An object of the present invention is to use an oscillating rotary spray system capable of connecting electrical wiring, liquid piping, and air piping from the outside of the sterilization tank to the rotating body rotatably installed in the sterilization tank without twisting. It is to provide a wiring / pipe connection structure to a retort sterilizer.

[0008]

In order to achieve the above-mentioned object, the present invention accommodates a plurality of trays in which products are mounted on a rotating body rotatably installed in a sterilization tank by stacking them.
After spraying hot water or steam etc. from the spray nozzle arranged toward the gap between the trays to heat and sterilize the product, cool water by spraying cooling water from the spray nozzle to cool the product. In an oscillating rotary-type spray retort sterilizer that oscillates and rotates a rotating body and a spray nozzle, a large, medium, and small triple tube with a rotation center axis of the rotating body that penetrates a sterilization tank inside and outside No structure, electrical wiring passages, liquid passages between each pipe of this triple pipe structure,
The air passages are formed independently of each other, the electric wiring passages are connected to external electrical equipment via slip rings outside the sterilization tank, and the air passages and liquid passages are supplied with external air via rotary joints outside the sterilization tank. The discharge means and the external liquid supply and discharge means are connected.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1A is a side view showing a schematic structure of an orbiting rotary type spray retort sterilizer to which the present invention is applied, and FIG. Is a sterilization tank, 2 is a rotating body, 3 is a tray, 4 is a header pipe, 5
Is a spray nozzle, 6 is a central axis of rotation, 7 is a rotary joint, 8 is a slip ring, 9 is rocking rotation imparting means, 10 is a rocking rotation transmitting member, 11 is a bearing, 12 is an external electric device, 13 is external air. Supply / discharge means, 14 is an external liquid supply / discharge means.

The sterilization tank 1 has a cylindrical shape that is fixedly supported in a horizontal state on a base 15, and one end (left end) of the sterilization tank 1 is an open end for loading and unloading a tray 3 on which a product is placed.
An open / close lid (not shown) is installed at the open end so as to be openable and closable, the other end (right end) is a closed end, and the bottom plate 1a is fixed.

The rotating body 2 includes a plurality of disc frames 2a arranged at appropriate intervals in the depth direction of the sterilization tank 1 and a plurality of connecting rods for coupling the disc frames 2a around the disc frame 2a. 2b
And is rotatably installed and supported in the sterilization tank 1 by each disc frame 2a, and swings from the swing rotation imparting means 9 via the swing rotation transmission member 10 and the rotation center shaft 6. It can be rotated. The oscillating rotation imparting means 9 is composed of a motor 9a and a speed reducer 9b, and these are bearing bases 9c.
Supported by. The swing rotation transmitting member 10 exemplifies a gear.

The tray 3 is for placing the product in a state where it can be easily sterilized. The trays 3 are stacked on the carriage 2c of the rotating body 2 in a state of being stacked in a plurality of stages, and are put in and taken out from the rotating body 2 and the sterilization tank 1 via the carriage 2c.

The header pipes 4 are arranged on both sides of the rotating body 2 over substantially the entire length of the sterilization tank 1 in the depth direction.
Are supported by the respective disc frames 2a.

The spray nozzle 5 is appropriately branched from the header pipe 4 and the disc frame 2a of the rotor 2 and the connecting rod 2 are provided.
It is mounted and supported using b.

The rotation center shaft 6 is shown schematically in FIG. 2 and, as shown in detail in FIG. 3, a triple tube structure in which an electric wiring passage 16, a liquid passage 17 and an air passage 18 are independently formed. It is said that. The large pipe 6a is integrated with the middle pipe 6b to form an air passage 18 therebetween, and the middle pipe 6b is formed into the small pipe 6b.
It is integrated with c to form a liquid passage 17 between them, and further an electric wiring passage 16 is formed in the small tube 6c. The large pipe 6a is installed by penetrating the bottom plate 1a of the sterilization tank 1 in and out along the rotation axis of the rotating body 2, and a seal device 19 is attached to the penetrating portion. The disc frame 2a of the rotating body 2 is connected to the inner end of the sterilization tank 1
A bearing 11 rotatably supports the rocking rotation transmitting member 10 on the outer side of the rocking rotation transmitting member 10. The large pipe 6a and the middle pipe 6b are provided at the outer end of the sterilization tank 1,
A rotary joint 7 is attached to the rotary joint 7. A liquid inlet 17a and an air inlet 18a communicating with the liquid passage 17 and the air passage 18 are installed in the rotary joint 7. The supply / discharge means 13 is connected via an appropriate pipe.

Further, the inside of the small tube 6c serves as an electric wiring passage 16 to a sensor installed in the sterilization tank 1, and the sterilization tank 1 is provided therewith.
An inlet 16a of the electric wiring passage 16 is formed at an outer end of the electric wiring passage 16, and a slip ring 8 is attached to the inlet 16a. The slip ring 8 allows an external electric device 12 such as a temperature detection display recording device including a power source. Is appropriately connected to the wiring. An outlet 16b of the electric wiring passage 16 is formed at the inner end of the small tube 6c, and the electric wiring to the sensor is led out from the outlet 16b. Although not shown in the drawing, the sensor is installed at an appropriate position of the rotating body 2 in the sterilization tank 1 so as to detect the same sterilization condition as the product.

A liquid outlet 17b communicating with the liquid passage 17 is formed at the inner end of the sterilization tank 1 of the middle pipe 6b. The liquid outlet 17b is connected to the rotating body 2 via the flexible pipe 4a. The equipped header pipe 4 is connected.

Further, an air outlet 18b communicating with the air passage 18 is formed at the inner end of the sterilization tank 1 of the large pipe 6a, and the tray outlet mounted on the rotary body 2 is formed at the air outlet 18b. An air pipe 20 is appropriately connected to a member (not shown).

As shown in FIG. 3, the large pipe 6a is thicker than the other pipes as a hollow rotating shaft for transmitting the rotating force from the outside of the sterilization tank 1 to the rotating body 2. The rotary joint 7 is attached to the outer end of the sterilization tank 1 of the large pipe 6a.
The housing 7a is rotatably mounted via bearings 7b and 7b, the liquid inlet 17a and the air inlet 18a are formed in the housing 7a, and the inner peripheral surface of the housing 7a is made to correspond to the liquid inlet 17a and the air inlet 18a. Annular groove 7
c, 7d are formed, and a suitable number of communication holes 17c, 18c communicating with the liquid passage 17 and the air passage 18 are formed in the large pipe 6a corresponding to the annular grooves 7c, 7d. Then, the seal packing 7e is appropriately attached to both sides and the middle of the annular grooves 7c and 7d. By doing so, two types of rotary joints of liquid and air are formed in the housing 7a of one rotary joint 7, so that the structure can be prevented from becoming complicated and the structure can be simplified. The cross-sectional areas of the liquid passage 17 and the air passage 18 can be changed by appropriately selecting the pipe diameter according to the target flow rate and the like. The positional relationship between the two annular grooves 7c and 7d formed in the housing 7a of the rotary joint 7 is such that the air inlet 1 of the air passage 18 in this embodiment is the passage that is outside the triple pipe structure.
An annular groove 7d communicating with 8a is arranged on the side close to the sterilization tank 1, and a passage that comes in the middle, that is, a liquid passage 17 in this embodiment is provided.
The annular groove 7c communicating with the liquid inlet 17a is formed on the side far from the sterilization tank 1. Then, annular step portions 6d and 6e for fitting and mounting the ends of the middle tube 6b and the small tube 6c are formed on the end portion of the large pipe 6a far from the sterilization tank 1, that is, on the inner diameter surface of the outer end portion. In this case, the annular stepped portion 6d into which the end portion of the middle pipe 6b is fitted and attached extends from the position of the communication hole 18c of the air passage 18 coming to the outside to the position where the communication hole 17c of the liquid passage 17 coming to the middle is formed. And the end portion of the middle tube 6b is airtightly inserted and fitted to the formation position of the annular stepped portion 6d through the seal packing, so that the air passage 18 coming to the outside and the liquid passage coming to the middle are formed. 17, that is, it is possible to supply air and liquid to the two independent passages from the two inlets 18a and 17a formed in the housing 7a of the single rotary joint 7 in a good condition, and avoid the complication of the connection structure and simplify the structure. It can be a structure.

The outer end of the small pipe 6c is airtightly fitted and supported on the annular step 6e of the large pipe 6a via a bush 6f. The inner end of the small tube 6c is airtightly fitted and supported by the end plate 6g at the inner end of the middle tube 6b via a bush 6h. The relationship between the inner end of the large pipe 6a and the inner end of the middle pipe 6b is as shown in FIG. 3, in which an annular flange 6i is formed at the inner end of the large pipe 6a. An annular flange 6j is fixed to the outer peripheral surface near the inner end of the pipe 6b, and a seal packing 6 is provided between the annular flanges 6i and 6j.
An annular ferrule joint clip 6m is fitted on both annular flanges 6i and 6j with k interposed therebetween, and the annular ferrule joint clip 6m is caulked to be hermetically fixed.

Although FIG. 3 exemplifies the case where the large pipe 6a is divided into two for convenience of processing, it may be constructed integrally as a series. Further, the bearing 11 in FIG. 3 exemplifies a case of supporting the bottom plate 1a of the sterilization tank 1, but the present invention is not limited to this.

[0022]

According to the present invention, it is possible to connect an electric wiring, a liquid pipe, and an air pipe from the outside of the sterilization tank to the rotating body rotatably installed in the sterilization tank without twisting. As a result, by continuously supplying hot water or cold water to the space between the trays accommodated and held in the rotating body, it is possible to constantly supply hot water or cold water to the product while the rotating body is rotating, and to shake the product. It has a remarkable effect when applied to a dynamic rotating type spray retort sterilizer.

[Brief description of drawings]

FIG. 1A is a side view showing a schematic structure of an orbiting rotary spray type retort sterilizer to which the present invention is applied, and FIG. 1B is a left end view thereof.

FIG. 2 is a vertical sectional side view showing an outline of a main part of the present invention.

FIG. 3 is a vertical cross-sectional side view showing details of essential parts of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sterilization tank 2 Rotating body 3 Tray 4 Header pipe 5 Spray nozzle 6 Rotation center axis 7 Rotary joint 8 Slip ring 9 Oscillating rotation imparting means 10 Oscillating rotation transmitting means 11 Bearing 12 External electric equipment 13 External air supply / exhaust means 14 External Liquid supply / discharge means 16 Electric wiring passage 17 Liquid passage 18 Air passage

Claims (1)

[Claims] 1. A plurality of trays on which products are mounted are stacked and accommodated in a rotating body rotatably installed in a sterilization tank, and hot water, steam or the like is discharged from a spray nozzle arranged toward a gap between the trays. After spraying / jetting and heat sterilizing the product,
Cooling the product by spraying cooling water from the spray nozzle, and during the above-mentioned heat sterilization and cooling treatment, in the oscillating rotary type spray retort sterilizer that oscillates the rotor and the spray nozzle, the sterilization tank is penetrated inside and outside The rotation center axis of the rotating body arranged is a large, medium, and small triple pipe structure, and electric wiring passages, liquid passages, and air passages are independently formed between the pipes of this triple pipe structure. Then, the electric wiring passage is connected to an external electric device via a slip ring outside the sterilization tank, and the air passage and the liquid passage are connected to the outside air supply / discharge means and the external liquid supply / discharge means via a rotary joint outside the sterilization tank. Wiring / piping connection structure to an oscillating rotary spray retort sterilizer, which is characterized in that it is adapted to be connected to.