JP2001299301A - Spray type retort - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spray type retort having an improved tray-holding means for fixing trays to tray-housing parts of a rotating body. SOLUTION: Tray-pushing lids 30 are installed in the upper parts of the tray-housing parts 2j of the rotating body 2, and keep and hold the trays 3 housed in the tray-housing parts 2j by pushing the trays 3 with elastic forces of springs 34. Pushing lid-lifting parts 40 are, for example, air cylinders installed in the upper parts of a sterilizing vessel 1, and release the trays 3 by lifting up the tray-pushing lids 30 by engaging piston rods 42 with the upper parts of the tray-pushing lids 30. Members 50 for preventing the rotating body 2 from being floated are members for preventing the rotating body 2 from being floated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retort for heating, heating and cooling while shaking and rotating a product in which contents such as food and medicine are hermetically sealed in a container (pouch, canned, bottled, etc.). The present invention relates to an oscillating / rotating spray type retort sterilizer that performs heat sterilization in a cycle process.

[0002]

2. Description of the Related Art Conventionally, a spray-type retort sterilizer used for heat sterilization in a retort cycle process stacks a plurality of trays on each of which a product is placed, accommodates the stacked trays in a sterilization tank, and directs the trays to gaps between the trays. The product is heated and sterilized by spraying hot water or steam or the like from a spray nozzle arranged at a predetermined position, and then the product is cooled by spraying cooling water from the spray nozzle (see Japanese Utility Model Publication No. 3-3197).

As shown in FIGS. 10 to 14, this spray-type retort sterilizer has a rotating body which accommodates a plurality of trays 3 stacked in a plurality of stages in a sterilization tank 1 which is placed in a substantially cylindrical shape and laid down. Roller member 6 provided in sterilization tank 1
There is a spray-type retort sterilizer that rotatably supports the rotary body 2 and performs a sterilization process while swinging or rotating the rotating body 2 (Japanese Patent Application Laid-Open Nos. 9-215732 and 9-215).
733).

The merits of performing the sterilization treatment while oscillating or rotating are that the contents (mainly liquid) of the product are oscillated to increase and decrease the temperature, and that the tray or pallet is inclined with respect to the horizontal so that the product can be sterilized. It is possible to remove the attached water at an early stage, and to shorten the time required for the sterilization treatment as a whole.

As shown in FIGS. 10 and 11, the sterilizing tank 1 is a cylindrical container placed on a base 1c and accommodates a rotating body 2 therein. At both ends of the sterilization tank 1, a lid 1
a, 1b are mounted airtightly and openably and closably,
The tray 3 can be carried in from the lid 1a on one side, and can be carried out from the lid 1b on the opposite side.

As shown in FIGS. 10 and 11, for example, the rotating body 2 has a frame formed by a plurality of disks 2a and a connecting pipe 2b connecting the disks 2a at appropriate intervals. Each disc 2a is formed with a substantially rectangular opening 2c for accommodating the carts 3a on which the trays 3 are stacked.
At the bottom of the opening 2c of each disk 2a, a carry-in path 2h for a truck 3a on which a guide rail 2d by a roller conveyor is laid is formed. Side guide rolls 2k are provided on both side surfaces of the carry-in path 2h, and lower side guide rolls 2e are provided at lower sides on both sides of the carry-in path 2h at a predetermined pitch to regulate the movement of the carriage 3a. The loading of the tray 3 is made easy. The side guide roll 2k supports the tray 3 from both sides when the rotating body 2 rotates.

[0007] The carry-in path 2h has, for example, four tray accommodating sections 2j. Each tray accommodating portion 2j is provided with a header pipe 4 having a spray nozzle 4a for ejecting a processing medium toward an article placed on the tray 3. On both sides of the carry-in path 2h, processing medium supply pipes 5 for supplying a processing medium to the header pipes 4 are provided through the respective disks 2a. Branch pipe 5a of processing medium supply pipe 5
Is a pipe for distributing and supplying the processing medium to each header pipe 4. Thereby, the processing medium is supplied to the header pipe 4 through the processing medium supply pipe 5 and the branch pipe 5a,
It is sprayed from the spray nozzle 4a to the articles placed on the tray 3. The processing medium includes a sterilization processing medium such as hot water or steam, a cooling processing medium such as cooling water or air, and a drying processing medium such as dry air.

Although not shown, the spray nozzle
Of the processing medium sprayed from 4a, cooling water and hot water are collected from a collection pipe attached to the lower part of the sterilization tank 1 and
Can be sent outside to the heat exchanger and reused again as cooling water or hot water.

A tray holding unit 7 for holding the tray 3 from above and fixing the tray 3 to the tray housing 2j is provided above the tray housing 2j of the rotating body 2. As shown in FIG. 11, the tray holding unit 7 includes a tray holding lid 8 for holding the loaded tray 3 with the elastic force of the springs (10, 11), and an air cylinder 9 for lifting the tray holding lid 8. It has.

As shown in FIGS. 12 and 13, the air cylinder 9 has a cylinder body 9a, a piston 9b housed in the cylinder body 9a, and a piston 9b attached to the piston 9b and extending from the cylinder body 9a to the tray housing 2j. And a piston rod 9c that expands and contracts downward. The tray holding lid 8 is attached to the tip of the piston rod 9c with a bolt 8a. A supply / discharge pipe 17 branched from a connection pipe 2b 'attached to the upper right side of each disk 2 is attached to a supply / discharge port 9d provided below the piston movable range of the cylinder body 9a. O attached to the outer peripheral surface of the piston 9b
A seal member 19 provided on the peripheral portion of the ring 18 and the piston rod 9c prevents the compressed air supplied into the cylinder body 9a from leaking into the sterilization tank 1. In FIG. 12, reference numeral 9e denotes a drain hole, and the cylinder 9a
Of the space above the piston 9b.

A spring seat 12 provided on the upper surface of the piston 9b and a spring seat 13 provided on the lower surface of the upper part of the cylinder body 9a.
The spring 10 is mounted on the piston rod 9c in a state where the spring 10 is elastically compressed. The spring seat 14 provided on the lower surface of the air cylinder 9 and the spring seat 15 provided on the upper surface of the tray holding lid 8 Between them, the spring 11 is mounted on the spring shaft 16 in a state of being elastically compressed. The tray holding lid 8 is provided with an air cylinder 9 by the elastic force of the springs 10 and 11.
When no air is supplied to the tray 3, the tray 3 is urged downward to hold the tray 3 from above, and
Hold.

Next, the supply of compressed air to each air cylinder 9 will be described.

The connection pipe 2b 'to which the branch pipe 17 of each air cylinder 9 is connected is provided with a receiving port 21 for a pilot coupling 20 as shown in FIGS. Is provided with a supply pipe 29 having a supply port 22 of the pilot coupling 20. As shown in FIG. 14, the supply pipe 29 communicates with a compressed air storage chamber 28 provided outside the sterilizing tank 1 via a seal 29a, and an external air cylinder 23 provided at an upper part of the compressed air storage chamber 28. The piston rod 23a moves up and down. With this external air cylinder 23, the operation of contacting and separating the receiving port 21 and the supply port 22 of the pilot coupling 20 is performed. An opening 29b is formed in the supply pipe 29 in the compressed air storage chamber 28, and the compressed air storage chamber 2
8 compressed air is introduced. The air supply / discharge pipe 24 is connected to the compressed air storage chamber 28. Air supply / discharge pipe 24
Is connected to a supply valve 25 connected to the air compressor P for supplying compressed air and an exhaust valve 26 for discharging compressed air. 14 in FIG.
6 is an opening confirmation switch for operating opening of 6.

When the tray 3 is fixed, the supply of the compressed air is stopped, and the exhaust valve 26 is opened to exhaust the compressed air in the cylinder 9 as shown in FIGS. The supply port 22 of the pilot coupling 20 is pulled up by the air cylinder 23, and the supply port 22 is separated from the receiving port 21 of the pilot coupling 20. This allows
Since the lifting force of the air cylinder 9 does not act on the tray holding lid 8, the tray holding lid 8 is pushed down by the elastic force of the springs 10 and 11, and the tray 3 is pressed.

Next, when opening the tray 3, FIG.
As shown in (b), the supply port 22 of the pilot coupling 20 is connected to the connecting pipe 2 by an external air cylinder 23.
The air supply pipe 24 is pressed against the receptacle 21 provided in the b ′ to secure the seal of the pilot coupling 20.
From the connecting pipe 2 through the pilot coupling 20
Supply compressed air to b '. Thereby, the air cylinder 9 pulls up the tray holding lid 8 to open the tray 3.

When loading and unloading the tray 3, the compressed air is supplied to the air cylinder 9 and the tray holding lid 8 is pulled up to the upper part of the tray accommodating portion 2j. Tray 3
When the rotating body 2 is swung and rotated by loading the compressed air, the compressed air of the air cylinder 9 is exhausted, and the tray holding lid 8 is pressed onto the tray 3 by the springs 10 and 11, so that the tray 3
Is fixed.

[0017]

It is necessary to keep the inside of the sterilization tank 1 in a clean atmosphere. However, in the above-described apparatus, the wear powder of the seal generated by the air cylinder 9 disposed inside the sterilization tank 1 is required. There is a possibility that fine dust such as dust may diffuse into the sterilization tank 1.

Further, since the tray holding unit 7 of a considerable weight is attached to the rotating body 2, the energy required for swinging and rotating is large, and the balance of rotation is poor.

In addition, the air cylinder 9 needs regular maintenance work, but since the air cylinder 9 is disposed inside the sterilization tank 1, there is a problem that the workability of the maintenance work is poor.

Therefore, an object of the present invention is to provide a spray-type retort sterilizing apparatus which solves the above-mentioned problems.

[0021]

According to the present invention, an oscillating / rotating spray type retort sterilizer according to the present invention comprises a rotating body for accommodating a plurality of stacked trays on which products are placed, and a rotating body attached to and housed in the rotating body. Holding means for elastically pressing and holding the tray from above, a sterilization tank having the rotating body therein, and hot water disposed on the rotating body toward a gap between the trays,
A spray-type retort sterilizer comprising a spray nozzle for jetting cooling water or the like, characterized in that a lift means for lifting the holding means is provided above the sterilization tank.

The lift means may be, for example, a rod which penetrates through an upper surface of the sterilization tank via a seal and is mounted so as to be slidable up and down, and engages with the pressing means inside the sterilization tank of the rod. And a driving means for moving the rod up and down outside the sterilization tank of the rod.

Further, the driving means is, for example, a hydraulic cylinder or a pneumatic cylinder provided outside the sterilizing tank, wherein the tip of a piston rod is connected to one end of the rod.

[0024] Further, the apparatus is characterized in that it is provided with a floating preventing means for preventing the rotating body from floating in the sterilizing tank.

[0025] The floating prevention means may include, for example, a protruding portion projecting in a direction perpendicular to a rotating surface of the rotating body at a lower position of the rotating body at a predetermined position of the rotating body where a tray accommodated in the rotating body is horizontal. And a retaining portion provided in the sterilization tank so as to extend above the protrusion.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a spray type retort sterilizer according to the present invention will be described below with reference to FIGS.

In FIGS. 1 and 2 showing the outline of the apparatus, 1 is a sterilization tank, 2 is a rotating body, 30 is a tray holding lid as holding means for holding the tray, and 40 is a holding means as a lifting means for lifting the tray holding lid 30. The lid lift section 50 is a rotating body floating prevention member as a means for preventing the rotating body 2 from floating.
Note that members similar to those shown in FIGS. 10 and 11 include:
The same reference numerals are given and the description is omitted.

As shown in FIG. 9, this apparatus has a sterilizing tank 1
The rotating body 2 housed therein is rotatably supported by a roller member 6, and the rotating body 2 can be rocked and rotated by a rotation driving device (not shown) provided outside the sterilizing tank 1. As shown in FIG. 1, the tray carrying path 2h of the rotating body 2 has four tray accommodating portions 2j for accommodating the stacked trays 3. A tray holding lid 30 for holding the tray 3 and a holding lid lift section 40 are provided in each tray accommodating section 2j.

As shown in FIG. 1, the tray holding lid 30
As shown in FIG. 3 and FIG. 4, a member provided on the upper portion of each tray accommodating portion 2j, a tray holding lid main body 31, a shaft portion 32 mounted on the upper portion of the tray holding lid main body 31, and a disk 2a. A support frame 33 attached to an upper portion of the opening 2c;
And a spring 34 interposed between the cover 31 and the presser cover 31. In FIG. 3, the left side in the figure shows a state where the presser lid 31 is lowered, and the right side shows a state where the presser lid 31 is raised.

The tray holding lid body 31 has a rectangular bottom shape corresponding to the shape of the tray 3 so that the upper portion of the tray 3 housed in the tray housing portion 2j of the rotating body 2 can be uniformly pressed in a stacked state. Is formed. The shaft portion 32 is a shaft member which is attached to the center of the tray holding lid main body 31 in an upright state by a nut 32a. At the upper end of the shaft portion 32, a handle portion 32b extending in an umbrella shape in the radial direction is formed. Further, on both sides of the shaft portion 32 of the tray holding cover main body 31, three spring shafts 36 for mounting the springs
It is mounted vertically by a.

As shown in FIG. 5, the support frame 33 has a substantially rectangular plate shape, and both sides 33a and 33b of the support frame 33 are formed so as to rise vertically.
3b between the ribs 33c, 3c to reinforce the support frame 33.
3d is provided. As shown in FIG. 3, the support frame 33 has both sides 33a, 33b attached to the flange 2f above the opening 2c formed in each disk 2a of the rotating body 2 by bolts 2g. In the center of the support frame 33, the shaft portion 32 of the tray holding lid main body 31 is inserted, and a bearing member 35 that slidably supports the inserted shaft portion 32 is provided. On both left and right sides of the support frame 33, the tray holding lid body 31 is provided.
, Three spring shafts 36 are inserted therethrough. A regulating nut 36b is attached to the upper end of the spring shaft 36 to prevent the spring shaft 36 from coming off the support frame 33. The regulating nut 36b is a set of two nuts attached to the spring shaft 36, and the upper nut is for preventing the lower nut from being loosened.

The spring 34 is inserted into a spring shaft 36 and provided on a top surface of the tray holding lid body 31.
It is mounted in a compressed state between the support frame 33 and a spring seat 33e provided on the lower surface of the support frame 33. Due to the elastic force of the spring 34,
The tray holding lid main body 31 urges the tray 3 from the support frame 33 vertically downward, and holds the tray 3 in the tray accommodating portion 2j. When the tray 3 is not accommodated in the tray accommodating portion 2j, the tray holding lid body 31 is
6 is pushed down until the regulating bolt 36b at the upper end contacts the support frame 33. The spring 34 keeps the tray holding lid main body 31 even when the rotating body 2 is rotated by 180 degrees and the tray holding lid main body 31 is positioned below the tray accommodating portion 2j.
Has a strong elastic force so that the tray 3 can be pressed against the housing portion 2j of the rotating body 2.

Next, the presser lid lift section 40 will be described.

As shown in FIGS. 3 and 4, the presser cover lift section 40 lifts the tray presser cover main body 31 vertically upward against the elastic force of the spring 34 to open the tray 3. A mating portion 41, a rod 42 attached to the engaging portion 41, an air cylinder 43 connecting the rod 42 to a piston rod 43a, and a frame body 44 attached to the upper portion of the sterilizing tank 1 and supporting the presser lid lift portion 40. Consists of

The frame 44 is, as shown in FIG.
Is a tubular member that is liquid-tightly mounted by welding to a mounting hole formed in the upper part of the cylindrical member. A lid member 45 is attached to an upper portion of the frame body 44. The rod 42 penetrates a hole provided with a seal 45a at the center of the lid member 45 so as to prevent external air from entering the sterilization tank 1, and is inserted slidably up and down. That is, in the region partitioned by the frame body 44 and the lid member 45, the inside of the sterilization tank 1 has a heat sterilization treatment atmosphere,
The outside of the sterilization tank 1 has an external atmosphere. In FIGS. 3 and 4, reference numeral 46 denotes a falling-off prevention piece, which prevents the rod 42 from falling off by hooking its tip to a portion 47 of the side surface of the rod 42 cut by a predetermined width.

As shown in FIG. 4, the engaging portion 41 is provided at the end of the rod 42 on the inner side of the sterilization tank 1, and is rotatable with respect to the handle portion 32 a of the shaft portion 32 of the tray holding lid body 31. 2 is a member protruding on both sides in the direction of the rotation axis, and is provided at its tip with an engagement piece 41a extending on the lower surface of the handle portion 32a.

The upper end of the rod 42 is connected to the piston rod 43a of the air cylinder 43. The air cylinder 43 has a piston rod 43a at the top of the frame body 44.
Is mounted on a mounting table 48 provided at a predetermined height from the frame body 44 in consideration of the movable width of the frame 44.

The air cylinder 43 attached to the presser lid lift section 40 is provided with a spring 3 attached to the tray presser lid main body 31.
6, the air cylinder 43 is contracted, so that the engagement piece 41a of the engagement portion 41 is engaged with the handle 32a of the shaft portion 32, as shown in FIG. Thus, the tray holding lid body 31 can be pulled up.

Next, the rotating member floating prevention member 50 will be described.

When the presser lid lift unit 40 raises the tray presser lid body 31 by contracting the air cylinder 43, the rotating body 2 itself may be lifted before the spring 34 contracts because the spring 34 is strong. is there. For example, when the tray 3 is not stored in the rotating body 2, when the product is not placed on the tray 3, or when the product placed on the tray 3 is small and light, the rotating body 2 is loaded with the product on the tray 3. Because it is lighter, it may be lifted and levitated. The rotator floating prevention member 50 is a member provided to prevent the rotator 2 from floating.

As shown in FIG. 1, FIG. 2 and FIG. 9, the rotating body floating prevention members 50 are provided at two lower portions of the two disks 2a of the rotating body 2, respectively. (B) As shown in (b), the projection comprises a floating prevention pin 51 provided perpendicular to the disk 2a of the rotating body 2 as a projection, and a retaining member 53 for retaining the floating prevention pin 51 to the sterilization tank 1.

The floating prevention pin 51 is provided on the disk 2a of the rotating body 2.
Is a pin member inserted perpendicularly to the disk 2a of the rotating body 2 in the vicinity of the outer periphery of the rotary member 2 and fixed by attaching a pin fixing member 52 to the other end. The retaining member 53 is a member having a U-shaped cross section. When the tray 3 accommodated in the rotating body 2 is horizontal, the upper edge 53 of the U-shaped opening is provided.
a so as to extend above the floating prevention pin 51.
Mounted on the inner peripheral surface of When the rotating body 2 rotates, as shown in FIG.
Since it passes through the U-shaped opening portion of 3, the floating prevention pin 51 and the retaining member 53 do not interfere with each other. When the air cylinder 43 of the presser lid lift section 40 contracts and the rotating body 2 floats, as shown in FIG. 7B, the floating prevention pin 51 and the pin fixing member 52 are moved to the upper edge 53a of the retaining member 53.
, So that the rotating body 2 no longer floats.
Then, since the rotating body 2 is restrained without floating, the force of the air cylinder 43 acts on the spring 34 to contract the spring 34 and open the tray 3 from the tray holding lid main body 31.

Hereinafter, a procedure for using this apparatus will be described.

In the following description, that the rotating body 2 is horizontal means a predetermined rotation position of the rotating body 2 such that the tray 3 accommodated in the rotating body 2 is horizontal.

First, when accommodating the tray 3, the rotating body 2 is set in a horizontal state as shown in FIG.
As shown in (2), the air cylinder 43 is contracted and the tray holding lid body 31 is lifted.

After accommodating the tray 3 in the rotating body 2, the air in the air cylinder 43 is evacuated. As a result, as shown in FIG. It is pressed down from above and held on the rotating body 2.

Next, the rotating body 2 is slightly tilted from the horizontal position by the external driving device, and the handle 32 a of the tray holding lid body 31 is pulled out from the engaging portion 41 of the rod 42. Then, compressed air is supplied to the air cylinder 43, and as shown in FIG.
The shaft portion 32 of the presser lid 31 and the engaging portion 41 do not completely interfere with each other when the rotating body 2 swings and rotates while being housed in the frame 44 of zero. When the rotating body 2 swings and rotates, it is supported by the roller member 6, so that the floating prevention pin 51 attached to the rotating body 2 and the retaining member 53 attached to the sterilizing tank 1 do not interfere with each other. Absent.

When the rotation of the rotating body 2 is stopped to take out the product, the air cylinder 43 is extended while the rotating body 2 is slightly tilted to the left or right from the horizontal to engage the rod 42. The part 41 is lowered. Then, with the rotating body 2 being horizontal, as shown in FIG.
The rotating body 2 is stopped in a state where is stored in the engaging portion 41 of the rod 42.

When the tray 3 is carried out, as shown in FIG.
Perform with the 1 lifted.

As described above, the oscillating spray type retort sterilizing apparatus of the present invention has been described, but the present invention is not limited to the above.

For example, in the above embodiment, the rod 42
And the piston rod 43a of the air cylinder 43 are directly connected, but in order to suppress the height of the entire apparatus, for example, the air cylinder 43 is placed sideways, and with the expansion and contraction of the air cylinder 43, A mechanism that allows the rod 42 to move up and down may be configured.

The driving device for moving the rod 42 up and down is not limited to the air cylinder 43, and other driving means can be applied. Further, since the driving means is provided outside the sterilizing tank 1 and has little influence on the atmosphere in the sterilizing tank 1, other pneumatic cylinders or hydraulic cylinders may be employed.

The handle 3 of the tray holding lid body 31
2a and the engaging portion 41 of the rod 42 may be any combination of members that can be engaged, and the shape is not limited to the above embodiment.

Although the rotating body floating prevention member 50 is provided below the rotating body 2, any other floating preventing means can be adopted as long as the rotating body 2 can be prevented from floating. The rotating body floating prevention member 50 may be omitted if the spring 34 is surely contracted before the rotating body 2 floats in the relationship between the weight of the rotating body 2 and the elastic force of the spring 34. it can.

[0055]

The spray type retort sterilizing apparatus according to the present invention comprises a rotating body for accommodating a plurality of stacked trays on which products are mounted, and a tray elastically holding the tray mounted on the rotating body from above. Pressurizing means for holding the rotating body, a sterilizing tank containing the rotating body, and a spray nozzle provided on the rotating body and spraying hot water, cooling water or the like toward a gap between the trays. In the retort sterilizer, since the lifting means for lifting the holding means at the upper part of the sterilization tank is provided, the lift means can make the atmosphere in the sterilization tank cleaner without affecting the atmosphere in the sterilization tank, Maintenance work is easy. Further, the supply passage of the compressed air to the air cylinder can be simplified as compared with a conventional configuration in which an air cylinder is provided on a rotating body as a lifting means. Further, there is no need to sterilize the compressed air supplied to the air cylinder. Also,
Since there is no air cylinder in the rotating body, the rotating balance of the rotating body is improved, and since the rotating body itself is reduced in weight, the energy for swinging and rotating the rotating body can be reduced.

Also, since the rotator is provided with a floating prevention means for preventing the rotator from floating in the sterilizing tank, the rotator is lifted when the holding means is lifted in accordance with the provision of the lift member above the sterilizing tank. The inconvenience of lifting together is eliminated.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic structure of a retort sterilizer according to the present invention.

FIG. 2 is a longitudinal sectional view showing a schematic structure of a retort sterilizer according to the present invention.

FIG. 3 is a longitudinal sectional view showing a tray holding lid part of the retort sterilizing apparatus according to the present invention.

FIG. 4 is a cross-sectional view showing a tray holding lid part of the retort sterilizing apparatus according to the present invention.

FIG. 5 is a plan view showing a support frame of the retort sterilizer according to the present invention.

FIG. 6 is a cross-sectional view showing a tray holding lid part of the retort sterilizing apparatus according to the present invention.

FIG. 7 is a cross-sectional view showing a rotating body floating prevention member of the retort sterilizing apparatus according to the present invention.

FIG. 8 is a cross-sectional view showing a tray holding lid part of the retort sterilizing apparatus according to the present invention.

FIG. 9 is a longitudinal sectional view showing a swinging state of a rotating body of the retort sterilizing apparatus according to the present invention.

FIG. 10 is a cross-sectional view showing a retort sterilizer.

FIG. 11 is a longitudinal sectional view showing a retort sterilizer.

FIG. 12 is a longitudinal sectional view showing an air cylinder of the retort sterilizer.

FIG. 13A is a longitudinal sectional view showing a state where compressed air is not supplied to a portion of compressed air supplied to an air cylinder of the retort sterilizing apparatus, and FIG. FIG. 4 is a longitudinal sectional view showing a state.

FIG. 14 is a cross-sectional view showing a part for supplying compressed air to the air cylinder 9.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sterilization tank 1c Base 2 Rotating body 2a Disk 2c Opening 2d Guide rail 2e, 2k Side guide roll 2i Rotating shaft 3 Tray 4 Header pipe 4a Spray nozzle 6 Roller member 30 Tray holding lid 31 Tray holding lid main body 32 Rod 33 Support frame 34 Spring 40 Pressing lid lift section 41 Engagement section 42 Rod 43 Air cylinder 43a Piston rod 50 Rotating body floating prevention member 51 Lifting prevention pin 53 Holding member

Claims (5)

[Claims] 1. A rotating body for accommodating a plurality of stacked trays on which products are mounted, holding means mounted on an upper portion of the rotating body for holding the accommodated tray from above, and holding the rotating body. A spray-type retort sterilization apparatus comprising: a sterilizing tank provided therein; and a spray nozzle disposed on the rotating body and spraying a processing medium toward a gap between the trays. A spray-type retort sterilizer, comprising a lifting means for lifting a spray. 2. A rod, wherein said lift means penetrates through an upper surface of said sterilization tank through a seal and is slid up and down, and engages with said holding means inside said sterilization tank of said rod. The spray type retort sterilizer according to claim 1, further comprising: an engaging portion to be obtained; and a drive unit for vertically moving the rod outside a sterilizing tank of the rod. 3. The apparatus according to claim 2, wherein said driving means is a hydraulic cylinder or a pneumatic cylinder provided outside said sterilizing tank, and a tip of said piston rod is connected to one end of said rod. The spray-type retort sterilizer according to the above. 4. The spray-type retort sterilizer according to claim 1, further comprising a floating preventing means for preventing the rotating body from floating in the sterilizing tank. 5. A projection protruding below the rotating body in a direction orthogonal to a rotating surface of the rotating body at a predetermined position of the rotating body at which a tray accommodated in the rotating body is horizontal. The spray-type retort sterilizer according to claim 4, comprising: a part; and a retaining part provided in the sterilization tank so as to extend above the protrusion.