JP3977568B2 - Oscillating spray retort sterilizer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a swing that heats and sterilizes a product in which the contents such as food and medicine are hermetically filled in a container (pouch, canned, bottled, etc.) in a retort cycle process of heating, cooling and heating while swinging. The present invention relates to a mold spray type retort sterilizer.
[0002]
[Prior art]
Conventionally, a spray-type retort sterilizer has been provided for the heat sterilization treatment of the retort cycle process. This spray-type retort sterilizer stacks multiple trays on which products are placed and stores them in a sterilization tank, and heats the products by spraying hot water or steam from spray nozzles that are placed toward the gaps between the trays. After sterilization, the product is cooled by spraying cooling water from a spray nozzle (see Japanese Utility Model Publication No. 3-3197).
[0003]
This spray-type retort sterilizer is provided with a rotating body that accommodates a plurality of trays stacked in a plurality of stages in a sterilization tank placed in a sideways state in a substantially cylindrical shape, and this rotation is performed by a roller member provided in the sterilization tank. There is an oscillating spray-type retort sterilizer that sterilizes while supporting the body in a rotatable manner and oscillating the rotator with a driving device (Japanese Patent Laid-Open No. 9-215732).
[0004]
The merits of sterilization while rocking are as follows: (1) Product contents (mainly liquid) are shaken to increase the temperature rise / fall rate, and (2) Tray and pallet are tilted with respect to the horizontal. For example, water can be removed at an early stage, and the time required for the sterilization treatment as a whole can be shortened.
[0005]
In this case, for example, as shown in FIG. 14 (A), the driving means 60 for swinging the rotating body includes a speed reducer 62, a gear 63, a motor 61 installed at an end on the base 5 of the sterilization tank 1. 64, the rotary shaft 65 fixed to one end of the rotating body 2 is rotated. In this apparatus, the lid member 1b on one side to which the driving means 60 is attached is not an open / close structure, and the tray member 3 is carried in and out by opening and closing the opposite lid member (not shown).
[0006]
Further, as shown in FIGS. 14B and 14C, the driving means 70 of another form includes an annular gear 71 formed on the outer periphery of the rotating body 2 in the sterilization tank 1 and a pinion 72 that meshes with the annular gear 71. An output shaft of a motor 73 provided on the outer periphery of the sterilization tank 1 is connected to a pinion 72 to swing the rotating body 2. Similarly, a chain sprocket is configured on the rotating body 2 instead of the annular gear 71, and a small chain sprocket is configured instead of the pinion 72, and the output shaft of the motor 73 is connected to the small chain sprocket. Some are configured to swing the rotating body by chain transmission (not shown).
[0007]
In this apparatus, the lid members (1 a, 1 b) on both sides of the sterilization tank 1 can be opened and closed, and the tray 3 can be taken in and out from both sides of the sterilization tank 1. That is, in the sterilization processing, the tray 3 can be carried into the rotator 2 from one side of the sterilization tank 1, and the tray 3 can be carried out from the rotator 2 on the opposite side of the sterilization tank 1 after the treatment. Can be performed simultaneously and work efficiency can be improved.
[0008]
[Problems to be solved by the invention]
As described above, a rotational driving force such as a motor is used to swing the rotating body. In this case, the rotation angle of the rotating body is switched based on the signal from the angle detecting means for detecting the rotation angle of the rotating body, but the rotating body exceeds the predetermined swing angle (overrun). )Sometimes.
[0009]
Further, when a motor is used as the drive device, the power cost increases when the device becomes large, and a large motor is required because the load when swinging is large, so that the drive means as a whole becomes large.
[0010]
SUMMARY OF THE INVENTION An object of the present invention is to provide an oscillating spray retort sterilizer that includes simpler and more compact oscillating means and that can reliably set the oscillating angle.
[0011]
[Means for Solving the Problems]
An oscillating spray retort sterilizer according to the present invention includes a rotating body that accommodates a stack of trays on which products are stacked, a sterilizing tank in which the rotating body is housed and disposed on a foundation, and a rotating body. In a oscillating spray retort sterilizer equipped with a spray nozzle that jets hot water, cooling water, etc. toward the gap between the trays, in the radial direction from the rotating shaft of the rotating body protruding outside the sterilization tank And a fluid pressure cylinder having one end connected to the arm portion and the other end supported on the foundation. In this device, the rotating body swings by appropriately switching the supply and discharge of pressure oil and air to the fluid pressure cylinder and extending or shortening the piston rod. Since the swing angle of the rotating body is limited by the movable range of the piston rod, the rotating body does not overrun.
[0012]
Further, the fluid pressure cylinder has two cylinder bodies integrally connected linearly, and the piston rod of one cylinder body is connected to the arm portion, and the piston rod of the other cylinder body is on the foundation. With one of the piston rods extended and the other piston rod shortened, the tray of the rotating body is leveled and both piston rods are extended or shortened to swing the rotating body in the left-right direction. You may make it let it.
[0013]
In addition, a sensor is disposed at a swing limit position in the left-right direction of the rotating body, the sensor detects that the rotating body swings to the swing limit, and the fluid pressure cylinder is detected based on the detection result of the sensor. The supply / discharge of the fluid may be switched.
[0014]
Further, two sensors may be provided around the rotation shaft of the rotating body, and a detected portion that can be detected by the sensor may be attached to the rotation shaft.
[0015]
An arm member extending in a radial direction from a rotation axis of the rotating body; a detected portion slidably disposed along a longitudinal direction of the arm member; A rail member that linearly guides the movement of the detection unit and a stopper unit that is disposed at both ends of the rail member and restricts the movement of the detected unit may be provided.
[0016]
In this case, the stopper portion is constituted by a buffer body, and a contact sensor that detects contact with the detected portion is attached to the buffer body, and fluid supply / discharge of the fluid to the fluid pressure cylinder is performed based on a signal from the contact sensor. May be switched.
[0017]
Further, the supply and discharge of fluid to and from the fluid pressure cylinder may be switched after a predetermined time from the contact detection with the detected part by the contact sensor.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a oscillating spray retort sterilizer according to the present invention will be described below with reference to the drawings.
[0019]
In FIG. 3 which shows the outline of the apparatus, 1 is a sterilization tank, 2 is a rotating body, 8 is a rocking device, and 9 is a double fluid pressure cylinder.
[0020]
The sterilization tank 1 is a cylindrical container, and is fixed in a horizontal state on a base 5 as shown in FIG. A lid member 1a is attached to one end of the sterilizing tank 1 so as to be airtight and openable. This apparatus opens and closes the lid member 1a, loads the tray 3 on which the product a is placed in the sterilization tank 1 into the rotating body 2 in a stacked state, and performs the heat sterilization treatment in the sterilization tank 1, and then the lid member 1a is opened and the tray 3 is carried out of the rotating body 2. A lid member 1b is fixedly disposed at the other end of the sterilization tank 1, and a bearing portion 1c for airtightly supporting the rotating shaft 2i of the rotating body 2 is provided at the center thereof.
[0021]
As shown in FIG. 4 (A), the rotator 2 has a framework formed by a plurality of disks 2a and a plurality of connecting bars 2b that connect the disks 2a at appropriate intervals. Each disc 2a is formed with a substantially rectangular opening 2c for storing a cart 3a in which trays 3 are stacked. At the bottom of the opening 2c of each disk 2a, a guide rail 2d by a roller conveyor is laid to form a carry-in path 2h for the carriage 3a. Six tray accommodating portions 2j are formed in the carry-in path 2h. A side guide roll 2e is provided on the side surface of the carry-in path 2h. A tray presser member 2f for holding the loaded tray 3 from above and an air cylinder 2g for raising and lowering the tray presser member 2f are provided above the carry-in path 2h. Appropriate means such as these are provided. A rotating shaft 2 i is provided on the rear surface of the rotating body 2. As shown in FIG. 3, the rotating body 2 is accommodated in the sterilizing tank 1 while the rotating shaft 2i is inserted into the bearing portion 1c of the sterilizing tank 1, and a ring 11 is attached to the tip of the rotating shaft 2i. 18 is attached.
[0022]
Hereinafter, regarding the rotating body 2, the supply of the sterilization processing medium to the tray 3, the header pipe 4, and the header pipe 4 will be described.
[0023]
As shown in FIG. 4 (B), the tray 3 can be stacked on a carriage 3a, and a plurality of products a are partitioned and partitioned by a partition plate 3b so as not to overlap and move. . Further, the tray 3 is formed with four corners 3d high, and a gap 3c is formed between the stacked trays 3 so that hot water or the like can be sprayed onto the product a from the periphery. In addition, an appropriate drainage structure such as a punching metal is adopted at the bottom of the tray 3 to enable drainage.
[0024]
As shown in FIG. 1, the header pipe 4 has a number of spray nozzles 4a and is installed at predetermined intervals in the vertical direction (or horizontal direction) on both sides of the loading path 2h of the rotating body 2. (A) As shown to (B), it rotates integrally with the rotary body 2. The spray nozzle 4a is sterilized with hot water, cooling water, or the like supplied to the header pipe 4 from the gap 3c between the trays 3 in the stacked state loaded into the loading path 2h of the rotating body 2 toward the product a. The medium is sprayed.
[0025]
As shown in FIG. 1, the supply of the sterilization processing medium such as hot water and cooling water to the header pipe 4 is branched and supplied from the main pipe 4b disposed on both sides of the rotating body 2 through the branch pipe 4c. The As shown in FIG. 3, the main pipe 4 b is externally circulated through a supply pipe 4 e provided in the rotary shaft 2 i of the rotating body 2 and a supply pipe 4 f fixedly provided in the rotary joint 18. A sterilization treatment medium is supplied from the outside of the apparatus connected to the supply pipe 43.
[0026]
As shown in FIG. 1, a circulation supply pipe 43 for supplying the header pipe 4 is formed outside the apparatus. The circulation supply pipe 43 includes a circulation pump 41 and a heat exchanger 42 and supplies hot water or cooling water. The suction pipe 43a of the circulation pump 41 is connected to the bottom of the sterilization tank 1, the discharge pipe 43b of the circulation pump 41 is connected to the inlet of the heat exchanger 42, and the outlet of the heat exchanger 42 is a circulation supply pipe. 43 is connected to the main pipe 4b. The heat exchanger 42 is for producing hot water or cooling water by heating or cooling (heat exchange) water or other appropriate liquid remaining in the bottom of the sterilization tank 1 with heating steam s or cooling water c. Heating steam and cooling water for heat exchange are switched and supplied from piping 44 and 45 through switching valves 46 and 47, and cooling water outlet piping 48 and steam drain piping 49 are switched through switching valves 50 and 51. Switchable connection. The sterilization tank 1 is connected to a vacuum deaeration unit 52 and a hot air supply and exhaust unit 53 for drying as necessary. The supply of hot water or cooling water to the header pipe 4 may be switched and supplied directly without using the heat exchanger 42.
[0027]
As shown in FIGS. 1 and 3, the rotator 2 is rotatably supported in the sterilization tank 1 by roller members 6 provided at four locations on the front, rear, left, and right sides of the bearing portion 1 c and the bottom inner periphery of the sterilization tank 1. ing.
[0028]
The roller member 6 is accommodated in a case 7 attached to the outer peripheral surface of the sterilization tank 1. The rotating shaft 6 a of the roller member 6 is supported by the side surface of the case 7 so as to be parallel to the rotating shaft 2 i of the rotating body 2. The roller member 6 slightly protrudes into the sterilization tank 1, contacts the ring-shaped contact plate 2a1 attached to the entire outer peripheral surface of the disk 2a of the rotating body 2, and rotatably supports the rotating body 2. Yes. Moreover, as shown in FIG. 1, a pair of roller member 6 provided in the right and left of the lower peripheral surface of the sterilization tank 1 is provided in the object under the disk 2a of the rotary body 2, and the weight of the rotary body 2 is carried out. Supports evenly.
[0029]
Hereinafter, the swinging device 8 that swings the rotating body 2 will be described.
[0030]
As shown in an enlarged view in FIG. 5, the tip of the rotating shaft 2 i of the rotating body 2 protrudes from the bearing portion 1 c of the sterilization tank 1, the ring 11 is fixed to the outer peripheral surface, and the rotary joint 18 is It is connected.
[0031]
As shown in FIG. 6, the ring 11 has an arm 11a extending in the radial direction, and a sensor detected piece 11b protruding in the radial direction is formed on the opposite side of the arm 11a by 180 °. The ring 11 is formed so that the arm 11a protrudes from the rotation shaft 2i in the horizontal direction when the rotating body 2 is horizontal.
[0032]
A dual fluid pressure cylinder 9 for swinging the rotating body 2 is attached to the arm 11a. As shown in FIG. 6, the dual fluid pressure cylinder 9 is obtained by inserting piston members (14, 15) into two cylinder bodies (12, 13) arranged in series. The piston rod (14a, 15a) of each piston member (14, 15) is airtightly attached to each cylinder body (12, 13).
[0033]
The piston member 14 on the upper side of the dual fluid pressure cylinder 9 connects the tip of the piston rod 14 a to the arm portion 11 a in a state where the piston rod 14 is rotatable about the pivot 16. On the other hand, the lower piston member 15 is fixedly attached to the base 5 in a state in which the tip of the piston rod 14 a can be rotated by the pivot 17. As shown in FIG. 7, the upper cylinder body 12 supplies and exhausts air from supply and discharge portions (p, q) formed at the upper and lower ends of the movable range of the piston 14 b of the piston member 14. Similarly, the lower cylinder body 13 supplies and exhausts air from supply and discharge portions (r, s) formed at the upper and lower ends of the movable range of the piston 15b of the piston member 15. Thereby, as shown in FIGS. 7-9, the rotary body 2 can be rock | fluctuated by expanding / contracting the double fluid pressure cylinder 9. As shown in FIG. 7 to 9 show the tray 3 accommodated in the rotating body 2 so that the swinging state of the rotating body 2 corresponding to the expansion and contraction of the double fluid pressure cylinder 9 can be easily understood. 7 to 9, 60 is an air supply / discharge switching unit to the supply / discharge unit (p, q, r, s), 63 is a switching device for operating the switching valve 60, and 64 is a control valve. It is a sequencer that controls the timing of switching.
[0034]
As shown in FIG. 7, the dual fluid pressure cylinder 9 is mounted with the lower piston member 14 shortened and the upper piston member 15 extended so that the tray 3 is horizontal. The horizontal state of the rotating body 2 is detected by sensors (t, u) attached to the upper and lower cylinder bodies (12, 13). t is a sensor that detects the proximity of the piston 14b of the piston member 14 inside the upper cylinder body 12, and u is a sensor that detects the proximity of the piston 15b of the piston member 15 inside the lower cylinder body 13. It is a sensor. As shown in FIG. 7, the two sensors (t, u) output signals when the piston members (14, 15) come close to each other in the cylinder bodies (12, 13). The signals of both sensors are received by the sequencer 64. That is, the sequencer 64 can detect that the rotating body 2 is in a horizontal state when signals are simultaneously received from both sensors (t, u).
[0035]
Next, the setting of the swing angle of the rotating body 2 will be described.
[0036]
The swing angle of the rotating body 2 is set by the swing detecting unit 20 disposed at the tip of the rotating shaft 2i of the rotating body 2, and based on a signal from the swing detecting unit 20, the sequencer 64 sets a predetermined timing. This is done by switching the supply and discharge of air to and from the dual fluid pressure cylinder 9.
[0037]
As shown in FIG. 5, the swing detection unit 20 is formed between a ring 11 attached to the rotating shaft 2 i of the rotating body 2 and a ring 19 provided on the casing of the rotary joint 18 so as to face the ring 11. ing.
[0038]
As shown in FIG. 6, a sensor detected piece 11b is formed on the ring 11 of the rotating shaft 2i so as to protrude in the radial direction on the opposite side of the arm 11a. Correspondingly, as shown in FIG. 10, the ring 19 of the rotary joint 18 has a proximity sensor (v, w) in a long hole 19b formed in a sensor mounting portion 19a projecting in an arc shape in the radial direction. Is attached. The attachment position of the proximity sensor (v, w) can be adjusted in the circumferential direction in the long hole 19b, and is attached at a symmetrical angle up and down with respect to the horizontal according to a desired swing angle of the rotating body 2.
[0039]
Accordingly, the lower proximity sensor w is, as shown in FIG. 8, when the double fluid pressure cylinder 9 extends and the rotating body 2 swings by a predetermined angle and the detected portion 11b of the ring 11 approaches. Send a signal. Further, as shown in FIG. 9, the upper proximity sensor v is signaled when the double fluid pressure cylinder 9 is contracted and the rotating body 2 is swung by a predetermined angle and the sensor detected piece 11b of the ring 11 approaches. To send. This signal is received by the sequencer 64, and the supply / discharge of air to / from the supply / discharge section (p, q, r, s) of the dual fluid pressure cylinder 9 is switched.
[0040]
In addition, air is supplied to and discharged from the supply / discharge portions (p, q, r, s) of the cylinders (12, 13) by a compressed air supply / discharge circuit shown in FIG. In FIG. 11 showing the supply / discharge circuit, reference numeral 60 denotes a switching unit for switching supply / discharge to the supply / discharge unit (p, q, r, s), and supply / discharge of compressed air to the supply / discharge unit (p, q). A control valve 61 for controlling and a control valve 62 for controlling supply / discharge of compressed air to / from the supply / discharge section (r, s) are provided. 63 is a switching device for operating the control valves 61 and 62, 64 is a sequencer, 65 is an air pump, and 66 is a discharge part.
[0041]
The sequencer 64 receives signals from the sensors (t, u, v, w) and appropriately switches the supply / discharge of air to / from the supply / discharge portions (p, q, r, s) of the dual fluid pressure cylinder 9. The switching device 63 is controlled so that each cylinder rod (14a, 15a) of the dual fluid pressure cylinder 9 is expanded and contracted.
[0042]
That is, when the rotating body 2 is stopped in a horizontal state (see FIG. 7), the control valve 61 is set to the b position and the control valve 62 is set to the e position, so that the upper and lower cylinder bodies (12, 13). Air supply / exhaust to is stopped.
[0043]
When the rotating body 2 is tilted to the right from the horizontal state (see FIG. 7), the control valve 62 is set to the position d, and air is supplied from the pump 65 to the supply / exhaust portion r in the lower cylinder body 13. The exhaust rod s is exhausted and the piston rod 15a is extended to tilt the rotating body 2 to the right.
[0044]
When the rotating body 2 tilts to the right by a predetermined angle (see FIG. 8), the control valve 62 of the lower cylinder body 13 is switched to the position f in response to the signal of the sensor w, and the supply / discharge section from the pump 65 The air is supplied to s and exhausted from the supply / discharge part r, the piston rod 15 is shortened, and the rotating body 2 is returned to the horizontal.
[0045]
When the rotating body 2 returns to the horizontal position (see FIG. 7), the signals of the sensors t and u are simultaneously received, and the control valve 62 is switched to the position e to supply air to the lower cylinder body 13. The exhaust is stopped, and the control valve 61 is switched to the position a to supply air to the supply / exhaust part p in the upper cylinder body 12 and exhaust it from the supply / exhaust part q to contract the piston rod 14a and move the rotating body 2 to the left. Tilt to.
[0046]
Then, when the rotating body 2 tilts to the left by a predetermined angle (see FIG. 9), in response to the signal of the sensor v, the supply / exhaust of air to the upper cylinder body 12 is switched, and air is supplied to the supply / discharge section q It exhausts from the discharge part p, extends the upper piston rod 14a, and returns the rotary body 2 to the horizontal.
[0047]
As described above, the swing of the rotating body 2 is performed by switching the supply and discharge of air to and from the dual fluid pressure cylinder 9 based on the signals of the sensors (t, u, v, and w). This is performed by appropriately expanding and contracting the upper and lower piston rods (14a, 15a). Further, when the rotating body 2 is stopped in a horizontal state, the supply and discharge of air to the dual fluid pressure cylinder 9 may be stopped when the signals of the sensors t and u are simultaneously received.
[0048]
With the above configuration, this apparatus carries the trays 3 on which products are placed in a stacked state into the loading path 2h of the rotating body 2 and swings the rotating body 2 left and right by the dual fluid pressure cylinder 9, The product a can be heat sterilized by ejecting a sterilization medium from the spray nozzle 4 a of the header pipe 4.
[0049]
Next, a second embodiment of the present invention will be described with reference to FIGS.
[0050]
In the second embodiment, in the structure in which the rotating body 2 of the apparatus is swung, a swing restricting portion 30 is provided on the rotating shaft 2 i of the rotating body 2. In FIGS. 12 and 13, the same components as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.
[0051]
As shown in FIG. 12, an arm portion 31 is attached to the rotating shaft 2 i of the rotating body 2. The arm portion 31 is a member that projects downward in the radial direction of the rotating shaft 2i of the rotating body 2 and in which two pieces of material extend in parallel, and a long hole 31a extends along the radial direction of the rotating shaft 2i at the tip portion thereof. Is formed.
[0052]
A base 32 is attached to the base 5 in correspondence with the arm 31. A rail member 33 having guide rails is provided horizontally on the base 32, and a slide member 34 is slidably mounted on the rail member 33. At both ends of the rail member 33, shock absorbers 35, 36 containing shock absorber springs are attached so as to protrude into the movable range of the slide member 34. The amount of protrusion of the buffer bodies 35 and 36 can be adjusted by adjusting screws 37 and 38. The shock absorbers 35 and 36 include sensors (x, y) that sense a contact of the slide member 34 and generate a signal. The signal of the sensor (x, y) is received by the sequencer 64 as shown in FIG.
[0053]
The slide member 34 has a pivot 34a slidably inserted into the elongated hole 31a of the arm portion 31, and corresponds to the movement of the arm portion 31 that swings to the left and right according to the swing of the rotating body 2. It reciprocates left and right along the rail member 33.
[0054]
In this embodiment, when the slide member 34 is buffered by the buffer springs 35 or 36 on the left and right of the rail member 33, the sequencer 64 receives a signal generated by the sensor (x, y) attached to the buffer springs 35 and 36. The control valve 61 is set to the position b, the control valve 62 is set to the position e, and the supply and discharge of air to and from the upper and lower cylinder bodies (12, 13) of the dual fluid pressure cylinder 9 are stopped for a certain period of time. After the body 2 is tilted and stopped in a state, the swinging of the rotating body 2 is resumed.
[0055]
As described above, the apparatus including the swing structure can stop swinging of the rotating body 2 for a certain period of time in a state where the rotating body 2 is tilted left and right (see FIG. 8 or FIG. 9). Thereby, for example, when the viscosity of the content of the product is high, or when the product contains a solid, the rotary body 2 is stopped from the swinging state by being stopped for a certain time in a tilted state. The contents of the product can be mixed well with the inertial force.
[0056]
The swing type spray retort sterilization apparatus of the present invention has been described above, but the present invention is not limited to the above.
[0057]
For example, in this embodiment, the dual fluid pressure cylinder 9 is used so that the horizontal state of the rotating body 2 can be easily set and the rotating body 2 can be oscillated symmetrically. As a drive means for swinging, a series of fluid pressure cylinders may be used. In this case, a control means for controlling the swing angle of the rotating body 2 may be provided separately.
[0058]
【The invention's effect】
The oscillating spray retort sterilization apparatus according to the present invention includes an arm portion extending in a radial direction from a rotation shaft of a rotating body protruding outside a sterilization tank, one end connected to the arm portion, and the other end connected to the arm portion. Since the fluid pressure cylinder supported on the foundation is provided, the rotating body can be swung by extending or shortening the piston rod by appropriately switching supply and discharge of pressure oil and air to the fluid pressure cylinder. In addition, the swinging angle of the rotating body can be regulated by the fluid pressure cylinder to prevent overrun of the rotating body.
[0059]
Further, the fluid pressure cylinder has two cylinder bodies integrally connected linearly, and the piston rod of one cylinder body is connected to the arm portion, and the piston rod of the other cylinder body is on the foundation. With one of the piston rods extended and the other piston rod shortened, the tray of the rotating body is leveled and both piston rods are extended or shortened to swing the rotating body in the left-right direction. Since the two piston rods are alternately expanded and contracted, the rotating body can be swung evenly from side to side.
[0060]
In addition, a sensor is disposed at a swing limit position in the left-right direction of the rotating body, the sensor detects that the rotating body swings to the swing limit, and the fluid pressure cylinder is detected based on the detection result of the sensor. Since the supply / discharge of the fluid is switched, the swing angle of the rotating body can be set within the expansion / contraction range of the fluid pressure cylinder.
[0061]
An arm member extending in a radial direction from a rotation axis of the rotating body; a detected portion slidably disposed along a longitudinal direction of the arm member; Since the rail member for linearly guiding the movement of the detecting portion and the stopper portions disposed at both ends of the rail member for restricting the movement of the detected portion are provided, the swing range of the rotating body is set to the fluid pressure cylinder. It can be set by the stopper portion within the expansion / contraction range.
[0062]
In this case, the stopper portion is constituted by a buffer body, and a contact sensor that detects contact with the detected portion is attached to the buffer body, and fluid supply / discharge of the fluid to the fluid pressure cylinder is performed based on a signal from the contact sensor. The timing for switching between can be set. In addition, it is possible to switch the supply and discharge of the fluid to and from the fluid pressure cylinder after a predetermined time from the contact detection with the detected part by the contact sensor. In this case, for example, when the viscosity of the product content is high or when the product contains solids, by stopping the rotating body for a certain period of time in a tilted state, The contents of the product can be mixed well by inertia. Thereby, the early sterilization processing which the rocking | spray type spray retort sterilizer aims at can be implement | achieved.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view showing a schematic structure of an oscillating spray retort sterilizer according to the present invention.
FIGS. 2A and 2B are explanatory diagrams of an operation state showing a state where it is swung left and right.
FIG. 3 is a side view showing an outline of the drive structure of the rotating body of the oscillating spray retort sterilizer according to the present invention.
4A is a perspective view showing a schematic structure of a rotating body, and FIG. 4B is a schematic perspective view of a tray.
FIG. 5 is a side view showing the rocking device of the first embodiment according to the present invention.
FIG. 6 is a cross-sectional view showing a rotation shaft side of a swing detection unit in the swing device.
FIG. 7 is a schematic rear view showing the horizontal state of the rotating body of the oscillating spray retort sterilizer according to the present invention.
FIG. 8 is a schematic rear view showing the swinging state of the rotating body of the swinging spray type retort sterilization apparatus according to the present invention.
FIG. 9 is a schematic rear view showing the swinging state of the rotating body of the swinging spray retort sterilizer according to the present invention.
FIG. 10 is a cross-sectional view showing a rotary joint side of a swing detection unit in the swing device.
FIG. 11 is a supply / exhaust circuit diagram of compressed air in an oscillating device.
FIG. 12 is a side view showing a rocking device according to a second embodiment of the present invention.
FIG. 13 is a cross-sectional view showing a rotation shaft side of a swing detection unit in the swing device according to the second embodiment.
14A is a schematic side view showing a first embodiment of a conventional rotational driving means, FIG. 14B is a schematic side view showing a second embodiment of the conventional rotational driving means, and FIG. 14C is a longitudinal section thereof. The front view is shown.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sterilization tank 2 Rotating body 2a Disc 2c Opening 2d Guide rail 2i Rotating shaft 3 Tray 4 Header pipe 4a Spray nozzle 4e Supply piping 5 Base 6 Roller member 8 Oscillator 9 Dual fluid pressure cylinder 12 Cylinder body 13 Cylinder Main body 14 Piston member 15 Piston member 14a Piston rod 14b Piston 15a Piston rod 15b Piston 31 Arm 33 Rail member 34 Slide member 34a Axis p, q, r, s Supply / discharge portion t, u Sensor v, w Sensor x, y Sensor

Claims (7)

A rotating body that accommodates a plurality of stacked trays on which products are placed, a sterilization tank in which the rotating body is housed and disposed on a foundation, hot water toward a gap between the trays disposed on the rotating body In a oscillating spray retort sterilizer comprising a spray nozzle for jetting cooling water, etc.,
An arm portion extending in the radial direction from the rotation axis of the rotating body protruding outside the sterilization tank;
An oscillating spray retort sterilizer comprising a fluid pressure cylinder having one end connected to the arm and the other end supported on the foundation. The fluid pressure cylinder has two cylinder bodies integrally connected linearly, and the piston rod of one cylinder body is connected to the arm portion, and the piston rod of the other cylinder body is supported on the foundation. With one of the piston rods extended and the other piston rod shortened, the tray of the rotating body is leveled, and both piston rods are extended or shortened to swing the rotating body in the left-right direction. The oscillating spray type retort sterilizer according to claim 1, characterized in that it is configured as described above. A sensor is disposed at a swing limit position in the left-right direction of the rotating body, the sensor detects that the rotating body swings to the swing limit, and based on a detection result of the sensor, a fluid for the fluid pressure cylinder is detected. 3. The oscillating spray retort sterilizer according to claim 1 or 2, characterized in that the supply / discharge of the water is switched. 4. The oscillating spray retort sterilizer according to claim 3, wherein two sensors are arranged around the rotating shaft of the rotating body, and a detected portion that can be detected by the sensor is attached to the rotating shaft. apparatus. An arm member extending in a radial direction from a rotation axis of the rotating body; a detected portion slidably disposed along a longitudinal direction of the arm member; and the detected object associated with swinging of the rotating body. 5. The swing type according to claim 4, further comprising: a rail member that linearly guides the movement of the portion; and a stopper portion that is disposed at both ends of the rail member and restricts the movement of the detected portion. Spray retort sterilizer. The stopper portion is constituted by a buffer body, and a contact sensor for detecting contact with the detected portion is attached to the buffer body, and supply / exhaust of fluid to the fluid pressure cylinder is switched based on a signal from the contact sensor. The oscillating spray retort sterilizer according to claim 1 or 2, characterized in that it is configured as described above. 7. The oscillating spray retort sterilizer according to claim 6, wherein a supply and discharge of fluid to and from the fluid pressure cylinder are switched after a predetermined time from detection of contact with the detected part by the contact sensor. .

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