KR101783580B1 - Door opening and closing mechanism for retort sterilization apparatus - Google Patents

Abstract

The present invention relates to a door opening or closing tool for a retort sterilization apparatus. The door opening or closing tool can open a door without manually unscrewing a clamp and automatically seal the closed door without manually tightening the clamp again, thereby quickly opening and closing the door and keeping the space utilization performance regardless of the opening and closing of the door of a sterilizing tank. According to an embodiment of the present invention, the door opening or closing tool for a retort sterilization apparatus opens or closes the door of the sterilization tank which is in a horizontal cylinder shape and supplies and circulates high-temperature and high-pressure steam for sterilization and discharging of retort products. The door opening or closing tool includes: a first protrusion unit protruding to the outside in a radial direction from a side of the edge o a door; a door rotating shaft which is coupled to the first protrusion unit, is extended in the longitudinal direction of the sterilization tank, and includes a fixing link aligning in the protrusion direction of the first protrusion unit in a vertical direction; a second protrusion unit protruding from a side of the edge of the sterilization tank; an opening and closing cylinder which has an end coupled to the second protrusion unit by hinges, has the other end coupled to the fixing link of the door rotating shaft by hinges, rotates the door in an upward direction when stretching the length to open the door, and rotates the door in a downward direction to close the door when reducing the length; a first semicircular clamp fixed on a flange formed on an edge of the sterilization tank; and a second semicircular clamp fixed on another flange formed on an edge of the door and forms a circular champ with the first semicircular clamp when closing the door.

Description

[0001] DOOR OPENING AND CLOSING MECHANISM FOR RETORT STERILIZATION APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing mechanism for a retort sterilizing apparatus, and more particularly, to a door opening / closing mechanism for a retort sterilizing apparatus that rotates a door against a sterilizing tank for sterilization treatment of a retort article to open and close a sterilizing tank.

In general, foods such as beverages such as coffee and meat are put into airtight containers such as cans, bottles, pouches and the like, sealed and then sterilized for a predetermined time in a high temperature atmosphere, which is called retort food.

Retort food essentially includes a sterilization treatment that kills bacteria producing toxic toxins such as botulin (botulinum).

This sterilization treatment is generally carried out by placing a plurality of retort products, such as coffee or foods such as beverages such as coffee, sealed in a basket, into a sterilization tank, and then supplying and circulating the high temperature and high pressure steam into the sterilization tank, Deg.] C or more for 4 minutes or longer.

The retort sterilization apparatus includes a sterilization tank in which high-temperature, high-pressure steam is supplied and circulated for sterilization treatment of the retort product, a door installed at one side of the sterilization tank to open and close the sterilization tank, and a plurality of retort products to be sterilized A basket inserted into the sterilization tank, and a door opening / closing mechanism for opening and closing the door with respect to the sterilization tank.

As an example of a door opening / closing mechanism for a retort sterilizing apparatus that opens and closes a door to a sterilizing tank among constituent members of a retort sterilizing apparatus, Korean Patent Laid-open Publication No. 10-2016-0014907 (published on Feb. 12, 2016) Pressure steam sterilizer for sterilization at a high temperature and a high pressure for a predetermined period of time, and a door for opening and closing an opening of the high-pressure steam sterilizer is installed by a hinge portion, And a door opening / closing drive part installed in the door opening and closing drive part so that the drive shaft inside the door opening and closing drive part is caught or released from the fitting part of the door lock part, the forward and reverse drive motor being installed at one side inside the door opening and closing drive part; A ball screw rotating normally or reversely by driving the forward / reverse drive motor; A moving unit that moves leftward and rightward by normal and reverse rotation of the ball screw; A first operating member provided on upper and lower brackets of the moving means so as to be movable forward and backward with a pin; A second operating member fitted on one side and the lower side of the first operating member so as to be movable forward and backward; And a fixing member for fixing the other side of the second operating member with a pin in a state in which the other side of the second operating member is sandwiched between the upper and lower bearings, And a door locking / unlocking device for locking and unlocking the door.

Korean Patent Laid-Open Publication No. 10-1242738 (published on Mar. 11, 2013) discloses a method for sterilizing food or beverage by using a high-temperature steam under a high-pressure environment after sealing a bottle or a can, A door of a lightweight structure composed of a door plate in the form of a curved surface protruding outward at the center of the circular plate to open and close at least one side of the case and various piping and control means for circulating the pressure and the steam for sterilization treatment The door structure of the retort sterilization apparatus according to the present invention is characterized in that it comprises a door plate formed of a door plate and a movable pressure plate joined to the door plate so as to form a separate independent dynamic pressure space at a lower side of the door space formed by the door plate, ; And a pressure-equalizing tube in the form of a tube for connecting the dynamic pressure space and the door space on the outer side thereof to each other at a predetermined position of the pressure plate, are provided.

However, in the case of the door opening / closing mechanism for the retort sterilizing apparatus described above, since the ring-shaped clamp is coupled to the flanges of the sterilizing tank and the door corresponding to the sterilizing tank and the door in order to keep the sterilization tank and the door hermetic, There is a problem in manually releasing the tightening or manually tightening the ring clamp after closing the door.

Further, in the case of the door opening / closing mechanism for the retort sterilizing apparatus, since the door is rotated to one side or the upper side of the sterilization tank so as to protrude in the longitudinal direction of the sterilization tank, a considerable space for the door rotation is required, There was a problem,

Patent Document 1: Korean Patent Laid-Open No. 10-2016-0014907 (published on Feb. 12, 2016) Patent Document 2: Korean Patent Laid-Open No. 10-1242738 (Announced on March 31, 2013)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is therefore an object of the present invention to provide a door locking device capable of opening a door without manually unclamping the clamp and automatically maintaining airtightness immediately after closure of the door And a door opening / closing mechanism for a retort sterilizing apparatus which can be opened and closed quickly and easily.

The present invention also provides a door opening / closing mechanism for a retort sterilization apparatus that prevents the space utilization from being hindered by opening and closing a door to a sterilization tank.

The present invention provides a door opening / closing mechanism for a retort sterilization apparatus that opens and closes a door to a horizontal cylindrical sterilizing tank in which high-temperature, high-pressure steam is supplied and circulated for sterilization and discharge of a retort product, And a fixed link which is connected to the first protrusion and extends in the longitudinal direction of the sterilization tank and which is arranged to be perpendicular to the protruding direction of the first protrusion are integrally formed with the first protrusion, And a second protrusion protruding from one side of the edge of the sterilization tank, one end being hinged to the second protrusion and the other end being hinged to a fixed link of the door pivot axis, Closing cylinder for turning the door in the downward direction and closing the door when the length is reduced, A first semicircular clamp fixed on a flange formed on one side edge of the door and a second semicircular clamp fixed on a flange formed at an edge of the door and forming a circular clamp together with the first semicircular clamp when the door is closed, Closing mechanism for a retort sterilizing apparatus, characterized in that it includes a clamp.

According to a preferred aspect of the present invention, a ring-shaped groove is formed in the contact surface of the flange of the sterilization tank in contact with the flange of the door, and the ring-shaped groove is automatically provided in the ring- Tight seal ring is provided.

According to a preferred aspect of the present invention, a stopper ring is coupled to the contact surface of the flange of the sterilization tank to prevent the detachment of the hermetic retaining ring.

According to the door opening / closing mechanism for a retort sterilizing apparatus according to the present invention, a conventionally used circular clamp is divided into a first semicircular clamp coupled on the flange of the sterilization tank and a second semicircular clamp coupled on the flange of the sterilization tank And at the same time, the hermetic retaining ring provided on the flange of the sterilization tank is automatically brought into contact with the flange of the door by the supply of compressed air when the door is closed, so that the door can be opened without manually releasing the clamp. The airtightness can be automatically maintained immediately after the door is closed without manually re-tightening the door, thereby opening and closing the door quickly and easily.

Further, according to the door opening / closing mechanism for a retort sterilizing apparatus according to the present invention, the door is not pivoted to one side or the upper side so as to protrude in the longitudinal direction of the sterilization tank, but as the door is lifted in the width direction of the sterilization tank, So that the space occupied is minimized and the space utilization is not hindered.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view of a door closing and closing mechanism for a retort sterilizing apparatus according to an embodiment of the present invention when the door is closed; Fig.
2 is a front view of a door opening / closing mechanism for a retort sterilizing apparatus when the door is opened according to an embodiment of the present invention;
FIG. 3 is a view showing an installation structure of first and second semicircular clamps and a hermetic retaining ring in a door opening / closing mechanism for a retort sterilizing apparatus according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the scope of the present invention being limited only by the terms of the appended claims.

In one embodiment of the present invention, the door opening / closing mechanism 1 for a retort sterilization apparatus is constructed such that a door 3 is opened and closed with respect to a horizontal cylindrical sterilization tank 2 in which high temperature and high pressure steam is supplied and circulated, 1 to 3, a first protrusion 10 protruding radially outward from one side of the edge of the door 3 and a second protrusion 10 protruding radially outward from the first protrusion 10, A door pivot shaft 20 extending in the longitudinal direction of the sterilization tank 2 and coupled with a fixed link 21 arranged perpendicularly to a protruding direction of the first protrusion 10, And the other end is hingedly coupled to the fixed link 21 of the door pivot shaft 20 and the other end is hinged to the fixed link 21 of the door pivot shaft 20. The second projecting portion 30 protrudes at one edge of the door pivot shaft 20, The door 3 is rotated in the upward direction to open the door 3, A first semicircular clamp 50 fixed on a flange 2a formed at one side edge of the sterilization tank 2 and a second semicircular clamp 50 fixed on a flange 2a formed at one side edge of the sterilization tank 2, And a second semicircular clamp 60 fixed on the flange 3a formed at the edge of the door 3 and forming a circular clamp together with the first semicircular clamp 50 when the door 3 is closed .

The first projecting portion 10 is arranged such that the door pivoting axis 20 enabling the opening and closing of the door 3 to be rotated is arranged to be spaced radially outward of the sterilization tank 2, And project radially outward on one side.

The door pivot shaft 20 is coupled to the first projection 10 described above. The door pivot shaft 20 forms a pivot for vertical rotation of the door 3 when the door 3 is opened and closed and extends horizontally along the longitudinal direction of the sterilization tank 2.

A fixed link 21, which is arranged perpendicularly to the projecting direction of the first projection 10, is coupled to one side of the door rotation shaft 20. The stationary link 21 serves to transfer the rotational driving moment generated by the expansion and contraction of the opening and closing cylinder 40 to the door pivot shaft 20 at the other end of the opening and closing cylinder 40, do. One end of the fixed link 21 can be integrally joined to the door pivot shaft 20 by various methods such as welding.

A second protrusion 30 protrudes from one side of the edge of the sterilization tank 2 described above. The second projection 30 corresponds to one kind of hinge bracket of which one end of the opening / closing cylinder 40, that is, the cylinder member is hinged, and includes two parallel plates spaced from each other with respect to the opening / closing cylinder 40 .

An opening / closing cylinder 40 is interposed between the second projection 30 and the fixed link 21 of the door pivot shaft 20. The opening / closing cylinder 40 is sterilized at the time of elongation because the cylinder rod is hinged to the second projection 30 and the other end is hinged to the fixed link 21 of the door pivot shaft 20, The door 3 is pivoted in the upward direction with respect to the tank 2, and when the length is reduced, the door 3 is rotated in the downward direction with respect to the sterilization tank 2 to close the door.

The first semicircular clamp 50 is fixed on the flange 2a formed at one edge of the sterilization tank 2 described above.

The first semicircular clamp 50 has a circular shape for simultaneously pressing the flange 2a of the sterilization tank 2 and the flange 3a of the door 3 together with the second semicircular clamp 60 when the door 3 is closed. So that the airtightness between the sterilization tank 2 and the door 3 can be maintained despite the high temperature and high pressure steam in the sterilization tank 2 as a whole. And is fastened to the flange 2a of the sterilization tank 2 by fastening pins 51 fastened at intervals of a predetermined angle.

The second semicircular clamp 60 is fixed on the flange 3a formed at the edge of the door 3 described above.

The second semicircular clamp 60 has a circular shape for simultaneously pressing the flange 2a of the sterilization tank 2 and the flange 3a of the door 3 together with the first semicircular clamp 50 when the door 3 is closed. So that the airtightness between the sterilization tank 2 and the door 3 can be maintained despite the high temperature and high pressure steam in the sterilization tank 2 as a whole. And fastened to the flange 3a of the door 3 by fastening pins 61 fastened at intervals of a predetermined angle.

In order to automatically provide the sealing force by the packing in addition to the clamping by the first and second semicircular clamps 50 and 60 when the door 3 is closed, A ring shaped groove 2b is formed on the contact surface of the flange 2a of the sterilization tank 2 in contact with the flange 3a of the door 3 and a ring shaped groove 2b is formed in the ring shaped groove 2b, It is preferable to provide a hermetic retaining ring 70 which is automatically brought into close contact with the flange 3a of the door 3 by the supply of air.

The hermetic retaining ring 70 can be formed by a packing ring for a high pressure tank and is arranged in the hermetic retaining ring 70 on the contact surface of the compressed air so as to be easily adhered to the flange 3a of the door 3 by compressed air It is preferable that a narrowing ring groove is formed.

A compressed air passage 2c for supplying compressed air to the ring groove 2b is formed in the flange 2a of the sterilizing tank 2 and compressed air supplied from a compressed air supply source is supplied to the compressed air passage 2c, An automatic air valve for supplying compressed air supplied to the compressor 2b or discharging the supplied compressed air to the outside is provided.

It is preferable that a stopper ring 80 for preventing release of the airtightness maintaining ring 70 is coupled to the contact surface of the flange 2a of the sterilizing tank 2 to form a step on the ring groove 2b. The stopper ring 80 is also fastenable by a fastening pin which is engaged with the flange 2a of the sterilization tank 2.

1 to 3, the overall operation of the door opening / closing mechanism 1 for a retort sterilizing apparatus will be described as follows.

First, as shown in Fig. 2, the door 3 is rotated counterclockwise to open, and a plurality of retort products, such as coffee, such as beverages and meat, sealed, are mounted on a basket, The door 3 is pivoted clockwise downward to close the door 3 as the length of the opening and closing cylinder 40 is reduced as shown in Fig.

At this time, the first semicircular clamp 50 fixed to the flange 2a of the sterilization tank 2 and the second semicircular clamp 60 fixed to the flange 3a of the door 3 form a perfect circular clamp The flange 2a of the sterilization tank 2 and the flange 3a of the door 3 are clamped and compressed air is supplied to the compressed air flow path 2c of the flange 2a of the sterilization tank 2, The airtight holding ring 70 housed in the ring-shaped groove 2b of the door 2 is closely contacted with the flange 3a of the door 3 to maintain airtightness.

Thereafter, steam of high temperature and high pressure is supplied into the sterilization tank 2 and circulated, for example, to sterilize the retort product mounted on the basket for 4 minutes or more at a high temperature of 121 ° C and a high pressure of 2.1 atm, for example, .

When the sterilization treatment of the retort product is completed, the compressed air flow path 2c of the flange 2a of the sterilization tank 2 is communicated with the atmosphere to relieve the pressure applied to the hermetic sealing ring 70, The door 3 is turned counterclockwise upwardly as the length of the opening and closing cylinder 40 is increased as shown in FIG. 2 to open the door 3, (2), putting the other basket into the sterilization tank (2) and repeating the above procedure.

In the case of the door opening / closing mechanism 1 for a retort sterilizing apparatus according to the embodiment of the present invention described above, a conventionally used circular clamp is attached to the first semicircular clamp 50 (see FIG. 1) fixed to the flange 2a of the sterilization tank 2, And a second semicircular clamp 60 fixed to the flange 3a of the door 3 and an airtight retaining ring 70 provided on the flange 2a of the sterilization tank 2 is formed on the door 3 It is possible to open the door 3 without manually releasing the clamp as the door 3 is closed automatically by the supply of compressed air to the flange of the door 3 and the door 3 The airtightness can be automatically maintained immediately after the closing of the door 3, so that the door 3 can be opened and closed quickly and easily.

In the case of the door opening / closing mechanism 1 for a retort sterilization apparatus according to the embodiment of the present invention described above, the door 3 is not rotated to one side or the upper side so as to protrude in the longitudinal direction of the sterilization tank 2, The space occupied by the opening and closing of the door 3 is minimized as the door is lifted in the width direction of the door 2, that is, in the vertical direction, and the space utilization is not hindered.

It is to be understood by those skilled in the art that the present invention may be embodied in many other forms without departing from the spirit and scope of the invention, the embodiments being exemplarily described above. It is therefore intended that the above-described embodiments be considered as illustrative rather than restrictive, and that all implementations within the scope of the appended claims and their equivalents are intended to be included within the scope of the present invention.

1: Door opening / closing mechanism for retort sterilization apparatus
2: sterilization tank
2a: Flange
2b: ring groove
2c: compressed air flow
3: Door
3a: Flange
10: first protrusion
20: Door rotating shaft
21: Permalink
30: second protrusion
40: opening / closing cylinder
50: first semicircular clamp
51: fastening pin
60: second semicircular clamp
61: fastening pin
70: Confidential ring
80: Stopper ring

Claims (3)

A door opening / closing mechanism for a retort sterilizing apparatus for opening and closing a door (3) with respect to a sterilizing tank (2) of a horizontal cylindrical shape in which high temperature and high pressure steam is supplied and circulated for sterilization treatment and discharge of a retort product,
A first protrusion (10) protruding radially outward at one edge of the door (3);
A door pivot shaft 20 coupled to the first protrusion 10 and extending in the longitudinal direction of the sterilization tank 2 and coupled with a fixed link 21 arranged perpendicularly to the protruding direction of the first protrusion 10; );
A second protrusion 30 protruding from one side of the edge of the sterilization tank 2;
One end of which is hinged to the second projection 30 and the other end of which is hinged to the fixed link 21 of the door pivot shaft 20 to open the door 3 in the upward direction when it is extended, An opening / closing cylinder (40) that rotates the door (3) in a downward direction when closing the door (3);
A first semicircular clamp (50) fixed on a flange (2a) formed at one edge of the sterilization tank (2); And
A second semicircular clamp 60 fixed on the flange 3a formed at the edge of the door 3 and forming a circular clamp together with the first semicircular clamp 50 when the door 3 is closed ≪ / RTI &
A ring-shaped groove 2b is formed on the contact surface of the flange 2a of the sterilization tank 2 in contact with the flange 3a of the door 3 and the ring- A hermetic retaining ring 70 is provided which is automatically brought into close contact with the flange 3a of the door 3 by the supply of compressed air to the door 3,
A compressed air passage 2c for supplying compressed air to the ring groove 2b is formed in the flange 2a of the sterilization tank 2 and a compressed air passage 2c is formed in the compressed air passage 2c, For supplying compressed air to the ring groove (2b) or discharging the supplied compressed air to the outside,
Wherein a stopper ring (80) for preventing the detachment of the hermetic retaining ring (70) is coupled to the contact surface of the flange (2a) of the sterilization tank (2). delete delete

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