JP3483776B2 - Cleaning equipment for vacuum packaging machines - Google Patents

Description

Detailed Description of the Invention

[0001]

Description of the Related Art A vacuum packaging machine has a mechanism in which a container filled with an object to be packaged is housed in an airtight pressure-resistant chamber, air in the chamber is sucked, and then the opening of the container is sealed. This type of machine is mainly used for food packaging, and every time the pressure inside the chamber drops, the oil and fat and salt components ejected from the food adhere and accumulate on the inner surface of the chamber due to the differential pressure. However, the operator who operates the machine has little idea of unsanitary because of the sense of security that food is contained in the container.

[0002]

The accumulation of the impurities in the chamber gradually deteriorates the airtightness of the pressure resistant chamber and is not preferable in terms of hygiene. Therefore, the present invention aims to eliminate these drawbacks. It is what

[0003]

BEST MODE FOR CARRYING OUT THE INVENTION For the above-mentioned purpose, a large number of sets of pressure-resistant chambers, each of which is composed of a main body and a cover covering the main body, are circulated in a row along an endless track, while The opening / closing lever is brought into contact with the main cam provided along the endless track, and the cover material is released from the main body in a partial region of the endless track by the pressure transmitted from the main cam through the lever, and the chamber is opened in this open region. In a packaging machine configured to vacuum-pack the food contained in the inside in the closed area of the lid material , after the packaging work completion signal,
A means for continuing the circular movement of the chamber and injecting the cleaning liquid into the pressure resistant chamber from the first nozzle installed in the open region of the lid member is provided.

Further, by injecting the dry air blown out from the second nozzle installed in the open region of the lid material into the pressure resistant chamber, the drying of the inner surface of the chamber is promoted.

As a separate device, a large number of pressure resistant chambers, each of which is composed of a main body and a cover material covering the main body, are circulated in a row along an endless track, while the opening / closing lever of the cover material is The food that is brought into contact with a main cam provided along the endless track and releases the lid material from the main body in a partial region of the endless track by the pressure transmitted from the main cam through the lever, and stores the food in the chamber in this open region. In a packaging machine adapted to perform vacuum packaging in the closed region of the lid material, an auxiliary cam installed along with the main cam is displaced along the main cam by an operating mechanism, and an opening / closing lever that contacts the auxiliary cam is used. The lid material,
The drying efficiency of the chamber is improved by maintaining the open state in almost the entire area of the endless track and injecting the cleaning liquid into the pressure resistant chamber from the first nozzle installed in the open region of the lid member.

Further, a large number of sets of pressure-resistant chambers, each of which is composed of a main body and a cover material covering the main body, are circulated in a row along the endless track, while the opening / closing lever of the cover material is moved to the endless track. A main cam provided along the main cam, and the pressure transmitted from the main cam through the lever releases the lid member from the main body in a partial region of the endless track,
The food stored in the chamber in this open area,
In addition to a packaging machine adapted to perform vacuum packaging in the closed area of the lid material, a rotary bagging machine for supplying packaged food to the chambers is provided along with the cyclic pitch of each chamber, and the bagging machine It is provided with three nozzles, and means for injecting a cleaning liquid from the third nozzle into the bagging machine.

Further, the main body and the lid member covering the main body are
A large number of pressure resistant chambers configured as a set are circulated in a row along an endless track, while the opening / closing lever of the lid member is brought into contact with a main cam provided along the endless track, and the lever is moved from the main cam. With the pressure transmitted through, the lid material is released from the main body in a partial area of the endless track,
The food stored in the chamber in this open area,
In a packaging machine adapted to perform vacuum packaging in the closed area of the lid material, a means for supplying a cleaning liquid through a port is provided on the slide surface of the rotary valve that sequentially connects the pressure chambers to the vacuum pump, and impurities on the valve slide surface are removed. Remove and maintain the valve slide rotation lightly.

According to a first aspect of the present invention, there is provided a signal transmitted from the controller when the cumulative number of output packages calculated by the counting device matches the preset number input to the controller.
In the method of operating the cleaning liquid supply means described in 4 and 5, the supply of the cleaning liquid is automated.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bagging machine 10 shown in FIG. 1 supports eight sets of two clamp arms 12 at a peripheral edge of a disc 11 at equal angles, and the disc 11 is rotated clockwise. When the empty bag 13 is supplied to the clamp arm 12 in the area A by intermittently rotating by 45 degrees, the interval between the clamp arms is narrowed in the area B to open the bag mouth, and the morning glory hopper 14 is opened in the area C.
Through the tube 15 in the region D to supply the seasoning liquid into the bag, tension the bag mouth in both regions E and F, and release the bag package 16 from the clamp arm in region G. The clamp arm is configured to repeat the motion of returning to the original position through the H region.

On the other hand, the vacuum packaging machine 20 has a circular rotor 21.
Eight pressure-resistant chambers 24, each of which includes a main body 22 and a lid member 23 covering the main body 22, are supported on the periphery of the chamber 2, and each chamber 2 is rotated by the counterclockwise rotation of the circular rotor 21.
4 is moved along a circular orbit, and a more detailed structure is shown in FIG.

That is, the bearing 3 provided on the upper surface of the machine base 30.
1, a cylindrical main shaft 32 is vertically supported, a pinion 35 fixed to a drive shaft 34 is engaged with a gear 33 fixed to the lower end of the main shaft, and the drive shaft is inserted through a pair of bevel gears 36. And the drive shaft 37. Power is transmitted to this driving shaft through a Genebus top or an inverter device, so that the circular rotor 21 fixed to the drive shaft 32 is
Intermittent rotation every 5 degrees.

The body 22 of the pressure resistant chamber is fixed to the arm 40 protruding radially from the upper surface of the circular rotor 21, and the lid member 23 is fixed to the connecting plate 42 which rotates integrally with the pin 41 supported by the arm, while Circular rotor 21
The first lever 44 pivotally supported 43 on the side wall of the
The second lever 45 connected to the first lever 44 is connected to the second lever 45 connected to the
Is applied to the upper surface of the crown-shaped main cam 48 installed on the machine base by the load of the lid member 23. When the roll 47 rolling on the main cam 48 by the rotation of the circular rotor 21 is subjected to the ascending slope of the main cam, the lid member 23 is opened, and conversely, the lid member 23 is closed at the descending slope of the main cam. Therefore, the first lever 44 functions as an opening / closing lever for the lid material.

Clamps 51 that can be opened and closed are respectively supported on the upper ends of two poles 50 standing on both sides inside the main body 22. A bell crank 53 is fixed to a lower end of a rotary shaft 52 protruding downward through an inner hollow portion of the pole 50, and a roll 54 supported by the bell crank contacts a deforming rail 55. When the main body 22 moves intermittently, the bell crank 53 swings due to the curve of the deforming rail 55 in some areas, and the clamp 51 that is normally closed opens, so that the packaging body 16 of FIG. The clamp 51 is attached to the clamp 51 in the main body 22 via the (not shown).

As shown in FIG. 2, a circular seat plate 58 is fixed on a pipe 57 installed in the main shaft 32 through a ball bearing, and a movable member similar to the lotus root cross section is mounted on the seat plate 58. A plate 59 is provided, and the eight holes 60 of the movable plate and each lid member 23 are connected via a hose 61. When the lid member 23 revolves around the main shaft, the movable plate 59 is pulled by the hose 61 and rotates around the core 62 of the seat plate, and the vacuum pump (shown in the figure) at the lower end of the pipe passes through the communication passage 63 formed in the seat plate. (Omitted) acts in the pressure chamber in the closed area. After that, the seal bar 64 inside the lid member is pressed against the seal base 65 of the main body by the actuator 66, and the package 1
Heat seal the bag mouth of No. 6.

As shown in FIG. 1, the spindle 6 of the vacuum packaging machine
The rotation angle detector 68 that measures the rotational movement of the No. 7 controller 70 controls the number of passing chambers 24 through the counter 69.
To the motor 72 of the first nozzle 71 when the cumulative total of the output packages discharged from the chamber in the P region and the preset number input to the controller 70 match. . In this case, the sequencer 73 measures a predetermined time margin after the final package is removed from the chamber, and then sprays the cleaning liquid from the first nozzle 71 into the open chamber 24. As the cleaning liquid, tap water or hot water containing a detergent is used. Behind that, air or warm air is blown from the second nozzle 75 to the chamber to promote the drying of the chamber. In other words, after the packaging work end signal, the patrol movement of the chamber is continued to perform cleaning.

Around the cam 48 shown in FIG. 2, an auxiliary cam 77 having a flat upper surface is supported by a large number of actuators, that is, a large number of operating mechanisms 78. As described above, after the cumulative total of the packages has reached the theoretical constant, the operation mechanism 78 pushes up the auxiliary cam 77 onto the main cam 48 by the command signal from the controller. For this reason, since the lid member 23 is fully opened in almost the entire area of the circular orbit, the drying of the inner surface of the chamber is further promoted.

As shown in FIG. 3, when the chamber body 22 is continuously rotated in the direction of the arrow, the first nozzle 71 follows the movement of each body 22 sequentially passing therethrough, so that the range of α is about the axis 80. To reciprocate. As described with reference to FIG. 1, the rotation angle detector 68 monitors the number of passing through the chambers 24. Therefore, the pinion 81 of FIG. Tell. As shown in FIG. 4, the vibrator 83 provided between the shaft 80 and the nozzle 71 disperses the cleaning liquid sprayed by the nozzle 71 widely, while the motor 84 first fixes the first nozzle 71 toward the lid member 23, and Then, it is displaced toward the main body 22.

In the packaging machine 10 shown in FIG. 1, the seasoning liquid drips mainly on the upper surface of the table when the bag suddenly drops from the clamp arm 12. Although not shown the third nozzle in accordance with the packaging operation end signal, against the the machine
Injecting a cleaning solution Te.

As shown in FIGS. 5 and 6, the rotary valve includes a type in which the movable plate 59 rotates on the upper side and a type in which the movable plate 59 rotates on the lower side. The rotary valve has a port 90 formed on the other seat plate 58. The other end of a water supply line 92 connected to the storage tank 91 is connected, and a pump 93 and an opening / closing valve 94 are provided in the line. When the signal producing the set number of packages is transmitted through the counter, the normally open switching valve 96 in the vacuum line 95 is automatically closed,
On the other hand, since the normally closed on-off valve 94 of the water supply line is opened and the pump 93 is driven, the cleaning liquid in the tank 91 passes through the port 90 and the sliding surface 98 of the rotary valve.
Is poured into. For this reason, impurities sticking between the seat plate 58 and the movable plate 59 are washed away, and the valve startup after a long period of non-operation is lightened and at the same time the valve sealing property is improved.

When the vacuum line 95 is formed downward from the rotary valve as shown in FIG. 5, the cleaning liquid must flow in the direction of the vacuum pump, so that a drain reservoir is formed in the line and the drain reservoir is formed. There is provided means for opening and closing the drain valve 99 provided in (1) by a signal from the controller 70 or a manual force.

The pressure chamber includes a type in which a lid is lowered from the lower body to cover it, and a type in which the lid supported on the vertical body of FIG.
In both cases, the lid material is equipped with an opening / closing lever, and the structure that opens and closes the lid material by the pressure of the main cam is adopted, so the auxiliary cam that keeps the lid material open in the entire endless track is Provide along.

[Brief description of drawings]

1] Overall plan view

[Fig. 2] Cross-sectional view of the vacuum packaging machine

FIG. 3 is a plan view of the first nozzle.

FIG. 4 is a side view of the first nozzle.

FIG. 5 is a sectional view of a rotary valve.

FIG. 6 is a sectional view of a rotary valve different from the above.

[Explanation of symbols] 10 ... Rotary bagging machine 20 ... Vacuum packaging machine 2
2 ... Main body 23 ... Lid 24 ... Pressure resistant chamber 4
4 ... Lid opening / closing lever 48 ... Main cam 69 ...
Counting device 70 ... Controller 71 ... First nozzle
75 ... Second nozzle 77 ... Auxiliary cam 58, 59 ...
Rotary valve 90 Port

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65B 31/00 B65B 59/00 B67C 3/00

Claims (2)

(57) [Claims] 1. A pressure-resistant chamber comprising a plurality of main bodies having said main shaft as a back in an endless track formed around a longitudinal main shaft, and a lid member which opens a pin of the upper edge of each of these main bodies upward with the shaft as an axis. By the action of the main cam installed on the circulating endless orbit of the pressure-resistant chamber, the lid material in each pressure-resistant chamber is opened and closed, while the first nozzle for injecting the cleaning liquid is arranged in the lid material open area. In the vacuum packaging machine, the accumulated output of the vacuum packaging calculated by the counting device and the signal transmitted from the controller when the preset number input to the controller match, Reciprocating movement of the first nozzle is started so as to follow the movement of each main body so as to follow the movement of the first nozzle, and during the tracking movement of the first nozzle, the nozzle is rotated in a cross direction. A battlefield device provided with respective means for rotating the first nozzle in the direction of the lid material. 2. An auxiliary cam having a flat upper surface installed along with the main cam is installed, and the auxiliary cam is moved upward along the main cam by a signal transmitted from a counting device and a controller, and the auxiliary cam is moved. The device according to claim 1, wherein the lid member is maintained in an open state in almost the entire area of the endless track by the action of.