JP2925488B2 - Vacuum packaging equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to, for example, liquid foods,
TECHNICAL FIELD The present invention relates to a vacuum packaging machine that deaerates air in a packaging bag and seals an opening of the bag in a state where an article to be packaged such as a powder product is stored in a packaging bag made of a resin film or the like.

[0002]

2. Description of the Related Art As a conventional vacuum packaging machine, for example, as described in Japanese Utility Model Application Laid-Open No. Sho 62-159408 and Japanese Patent Publication No. 6-84167, the container body and the upper opening of the container body are sealed. A pressure vessel having a lid, a vacuum pump for creating a negative pressure in the pressure vessel, and a sealing device arranged in the pressure vessel are provided, and the pressure vessel is generally provided horizontally. Some of them are provided on the worker's side so as to be inclined downward, so as to correspond to liquid products and powder products.

[0003] In any of the vacuum packaging machines, a packaging bag containing an article to be packaged is stored in a container body with the lid opened, and the lid is closed, and then the inside of the pressure-resistant container is opened by a vacuum pump. Negative pressure to evacuate the air inside the packaging bag (degassing)
In this state, the opening of the packaging bag is sealed by the sealing device, and then the inside of the pressure-resistant container is returned to the atmospheric pressure to complete the packaging.

[0004]

However, in a vacuum packaging machine in which a pressure-resistant container is provided horizontally, when packaging a liquid or powdered package, the package leaks from the opening of the packaging bag. In some cases, the leakage causes poor sealing (defective sealing), and when the packaged material leaks, the inside of the pressure-resistant container is soiled, which causes inconvenience such as troublesome cleaning work to be performed later.

[0005] Further, in a vacuum packaging machine in which a pressure-resistant container is inclined downward toward an operator, when a packaging bag is placed on the bottom surface of the container body,
Since the bottom surface of the container body is inclined, the position of the packaging bag is displaced due to vibration or the like when the lid is closed, and the sealing position may be irregular or may not be sealed. In particular, when a packaging bag whose surface is gloss-treated is used, it is easy to slide, so that the movement is remarkable. Further, when the sealing positions of the packaging bags are not uniform, the appearance is deteriorated and the commercial value is reduced.

Accordingly, an object of the present invention is to provide a vacuum packaging apparatus in which a packaging bag can be easily placed at a predetermined position in a pressure-resistant container, and the position of the placed packaging bag is not easily shifted.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above-mentioned object, and an object of the present invention is to provide a container body and an openable and closable lid for sealing a top opening of the container body. A pressure-resistant container for storing a packaging bag containing an object to be packaged, a vacuum pump for depressurizing the inside of the pressure-resistant container to evacuate the packaging bag, and a packaging bag disposed in the pressure-resistant container. And a sealing device for sealing the opening of the pressure-resistant container.
Tilt the front side high and the other side low.
To support the lid so that it can be opened and closed with respect to the container body.
The sealing mechanism is disposed on the lower side of the pressure-resistant container, and the sealing device is disposed on the higher side of the pressure-resistant container. A plurality of side receiving members are provided, and a laterally elongated bag receiving member is detachably spanned between both side receiving members, and a locking portion that engages both left and right ends of the bag receiving member is selected. This is a vacuum packaging device in which the position of a member can be adjusted.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the vacuum packaging machine with the lid opened, as viewed from the operation front side, and FIG. 2 is a cross-sectional view of the vacuum packaging machine with the lid closed.

The vacuum packaging apparatus 1 has a pressure-resistant container 3 provided at an upper portion of a housing 2 in an inclined state, a gas nozzle 4 for ejecting an inert gas is provided inside the pressure-resistant container 3, and an opening of a packaging bag 5 is provided. And a vacuum pump 7, a transformer 8, a control device, and the like are provided in the housing 2 below the pressure-resistant container 3, and the side surface of the housing 2 located on the inclined upper end side of the pressure-resistant container 3 is operated. A panel 9 is provided. That is, the pressure-resistant container 3 according to the present invention is provided so as to be inclined such that the operation front side facing the worker is high and the opposite side is low, and the sealing device 6 is arranged close to the high side in the pressure-resistant container 3. It is.

The pressure-resistant container 3 comprises a metal box-shaped container main body 10 having an open upper surface, and a lid 11 for sealing the upper opening of the container main body 10, and is provided with a hinge mechanism 12 provided on a lower side. The lid body 11 is supported so as to be openable and closable with respect to the container body 10, and the lid body 11 can be locked in a closed state by a lock mechanism 13 provided on a high side, and the container body is opened through a window 15 of the lid body 11 closed with a transparent plate 14. It is configured so that the inside of 10 can be confirmed. Further, the other end of the suction-side flow path 21 having one end connected to the suction port of the vacuum pump 7 is connected to the exhaust port 20 opened on the lower surface of the container body 10. Therefore, when the vacuum pump 7 is operated in a state where the lid 11 is put on the upper opening of the container body 10 and the inside of the pressure-resistant container 3 is sealed, the container body 1
The air in the vacuum chamber 22 surrounded by the zero and the lid 11 can be exhausted from the exhaust port 20 to the outside, whereby the inside of the vacuum chamber 22 can be reduced in pressure to near vacuum.

A sealing member 23 is provided on the lower surface of the lid 11 corresponding to the opening edge of the container body 10 to ensure the airtightness of the vacuum chamber 22.

Further, since the container body 10 is formed at substantially the same depth, when the container body 10 is mounted on the housing 2, the bottom surface is inclined such that the operation front side is higher and the opposite side is lower.

The hinge mechanism 12 includes a first support member 24 projecting rearward from an upper portion of a lower side surface of the container body 10, a second support member 25 projecting downward from an end of the lid 11,
It comprises a support shaft 26 for rotatably connecting the first support member 24 and the second support member 25. Then, the arm 27 is extended downward from the hinge mechanism 12 mounting side of the lid 11, and the arm 2 is extended.
7 is connected to the distal end of a rod 31 of a compression coil spring mechanism 30, and the compression coil spring mechanism 30 urges the lid 11 in the opening direction.

Accordingly, the free end side of the lid 11 is lightly pressed by hand against the container body 10 to close it, and the lock mechanism 1 is closed.
When locked by 3, the vacuum chamber 22 surrounded by the lid 11 and the container body 10 can be formed. When the lock is released, the lid 11 is automatically or lightly urged by the urging action of the compression coil spring mechanism 30. Release with enough power to attach your hand.

When the lid 11 is opened, the hinge mechanism 1
Since the free end side of the lid 11 is higher than the base end side of the lid 11 supported by the shaft 2, the free end of the lid 11 rises in an arc while moving away from the operator.
Therefore, it is possible to prevent the free end of the lid 11 from imposing an intimidating feeling on the worker when the lid 11 is opened.

A sealing device 6 is provided near the inclined upper end in the pressure-resistant container 3 having the above structure, and a bag receiving member for regulating and stabilizing the position of the packaging bag 5 sealed by the sealing device 6. 40 are provided.

Although there are various sizes of the packaging bag 5 depending on the amount of the article 35 to be packaged, the sealing position by the sealing device 6 is the same, and the packaging bag 5 located on the opposite side to the opening is provided.
Of the bottom of is different. Therefore, in the present invention, the position of the bag receiving member 40 can be adjusted according to the position of the bottom of the packaging bag 5.

More specifically, a side receiving member 42 in which a plurality of locking portions 41 are formed in the inclined direction is provided on both inner side surfaces of the container body 10 along the inclined direction.
In between, the horizontally elongated bag receiving member 40 is detachably hooked and suspended, and the locking portion 41 engaging the left and right ends of the bag receiving member 40 is selected so that the position of the bag receiving member 40 can be adjusted. .

As shown in FIG. 4, the side receiving member 42 is formed by bending a stainless steel plate so that the upper end of the side wall 43 is bent outward to form an upper surface portion 44. Is bent downward at the outer end portion of
Is formed in a downward U-shape, and a slit-shaped engaging portion 41 is opened from substantially the center of the upper surface portion 44 to the upper end portion of the side wall portion 43. A plurality of slit-shaped locking portions 41 are formed at a predetermined pitch in the longitudinal direction of the side portion receiving member 42,
The width of the opening is set slightly wider than the thickness of the bag receiving member 40 described later. The left and right side receiving members 42, 42
Symmetrical, slit-shaped locking portions 41 are also provided at positions facing each other.

The side receiving member 42 is connected to the container body 1.
For example, in order to detachably attach to the inner side surface of the container body 10, a U-shaped portion at the upper end is hooked on a mounting projection (not shown) protruding from the side surface of the container body 10, and the inclined lower end portion is attached to the container body 1.
The lower end may be in contact with the lower inner surface, or a claw (not shown) protruding from the lower end may be fitted into a groove formed on the bottom surface of the container body 10.

As shown in FIG. 4, the bag receiving member 40 is a member formed by bending an upper portion of a horizontally long stainless steel plate and forming a substantially inverted L-shaped cross section. An engaging portion 45 fitted in the slit-shaped engaging portion 41
Is formed. The left and right lengths of the lower end of the bag receiving member 40 (the left and right distances between the ends of the cutouts) are determined by the side receiving members 42 and
The length of the engaging portion 45 is set to be slightly shorter than the length of the slit-shaped engaging portion 41, and the length of the engaging portion 45 is set slightly shorter than the length of the slit-shaped engaging portion 41. Part 4
The lengths (intervals) of the slits 45, 45
The vertical height of the middle portion is set to be approximately the same as the vertical height of the side receiving member 42.

Therefore, the left and right side receiving members 42, 42
Are selected, and as shown in FIG. 4, the bag receiving member 40 is lowered from above and the left and right engaging portions 4 are moved.
Inserting the bag receiving members 40 from above into the locking portions 41, 41, the bag receiving member 40 is inserted into the side receiving members 42, 4 on both sides.
2, and in the state of being bridged, a vertically long protruding piece-shaped engaging portion 45 is provided in the vertically elongated slit-shaped locking portion 41.
Are fitted to each other without swinging, and the bag receiving surface 4
6 is stable.

When the bag receiving member 40 is spanned in this manner, if the engaging portion 41 into which the engaging portion 45 is inserted is appropriately selected, the length from the bag receiving member 40 to the sealing device 6 is reduced. It can be set to a desired length. Therefore, according to the size of the packaging bag 5, specifically, according to the position where the bottom of the packaging bag 5 is located when the opening of the packaging bag 5 is adjusted to the position of the heat ray of the sealing device 6 described later. When the locking portion 41 is selected, the position of the bottom of the packaging bag 5 is regulated.

Therefore, when the packaging bag 5 of the size is placed in the container main body 10, the packaging bag 5 is placed on the bottom surface of the container main body 10 so as to be in contact with the bag receiving surface 46 of the bag receiving member 40. The opening 5 is set at a predetermined position of the sealing device 6. Therefore, when the packaging bag 5 is set in the sealing device 6, it is not necessary to perform a special positioning operation, and the sealing can be performed at the same position even by a non-expert. Furthermore, even if it receives the vibration at the time of closing the lid 11,
Since the bottom of the packaging bag 5 is supported by the bag receiving member 40, it does not slide. For this reason, the lid 11
There is no need to pay special attention when closing the door, and the workability can be improved. Moreover, since the bottom surface of the container body 10 is inclined, it is possible to prevent the packaged object 35 in the packaging bag 5 from leaking from the opening.

Next, the sealing device 6 will be described. The sealing device 6 shown in the drawing is provided on the container body 10 so as to be able to move up and down, and is fixed to the lower heater block 50 which is long in the width direction of the vacuum chamber 22 and the lower surface side of the lid 11. The upper heater block 51, which is long in the width direction, is disposed at a position facing the upper heater block 51, and heating wires 52, 53 are attached to the ends of the heater blocks 50, 51.
The upper heater block 5
It is configured to be pressed against one side. The press-contact cylinder 54 is partitioned into an upper first chamber and a lower second chamber by a piston 56 urged downward by a return spring 55, and the second chamber is connected to outside air through an open hole 57. The first chamber is connected to the suction-side channel 21 of the vacuum pump 7 via the branch channel 59.

Therefore, the vacuum chamber 22 is closed with the lid 11.
With the pressure in the inside reduced, the electromagnetic valve 60 in the middle of the branch flow path 59
Is opened to make the branch flow passage 59 communicate with the first chamber of the cylinder 54, the first chamber is made negative pressure, and the piston 56 rises against the bias of the return spring 55. Rises and presses against the upper heater block 51, and when heated by the hot wires 52 and 53 in this state, the packaging bag 5 sandwiched therebetween can be heated and pressed to be sealed (sealed). When the operation of the solenoid valve 60 is stopped and the first chamber communicates with the outside air via the solenoid valve 60, the piston 56
Is lowered by the bias of the return spring 55, whereby the lower heater block 50 returns to the original position, and the sealing step is completed. When the packing bag 5 is filled with an inert gas, the sealing step is performed after the inert gas is ejected from the gas nozzle 4 provided on the base 61.

When the sealing step of the packaging bag 5 is completed in this way, the inside of the vacuum chamber 22 is returned to the atmospheric pressure, and then the lid 11 is closed.
Is opened, the packaging bag 5 in which the packaged object 35 is vacuum-packaged can be taken out.

In this embodiment, the locking portions 41 formed on the side receiving members 42 are slit-shaped openings, and the engaging portions 45 of the bag receiving members 40 are projecting pieces. The locking portion 41 of the part receiving member 42 is not limited to this, and may have any configuration as long as the end of the bag receiving member 40 can be engaged. For example, a plurality of small projections may be provided.

[0029]

According to the present invention as described above, according to the present invention, resistance to
Raise the pressure vessel on the operation front side facing the operator,
Of the container is inclined so that it is lower, and the lid is
The hinge mechanism that supports the opening and closing freely by opening and closing
When the lid is opened, it is
Ascend in an arc. Therefore, vacuum packaging
Even if the lid is automatically opened after the process is completed,
Does not give a sense of intimidation to others. Also, inclined pressure capacity
Since the sealing device is located close to the inside of the container,
Or, when packing powdered items, open the packaging bag.
It is possible to prevent the package from leaking from the mouth
You.

Further, a side receiving member having a plurality of locking portions formed in the inclined direction is provided on both inner side surfaces of the container body along the inclined direction, and a laterally elongated bag receiving member is engaged between the both side receiving members. The position of the bag receiving member can be adjusted by selecting the locking portion that engages the left and right ends of the bag receiving member so that it can be detached, so the position of the bag receiving member is adjusted in advance according to the size of the packaging bag By doing so, the opening can be adjusted to a predetermined position of the sealing device without paying special attention to positioning when setting the packaging bag.

Further, since the once set packaging bag is prevented from sliding and moving by the bag receiving member, it is possible to prevent the position of the packaging bag from being shifted even when subjected to vibration or the like when closing the lid. . Therefore, troubles such as uneven sealing positions and inability to seal can be prevented beforehand.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vacuum packaging apparatus viewed from an operation panel side in a state where a lid is opened.

FIG. 2 is a cross-sectional view of the vacuum packaging device in a state where a lid is closed.

FIG. 3 is a perspective view of the container main body in a state where two packaging bags are set, as viewed from above.

FIG. 4 is a perspective view showing a main part of a side receiving member and a bag receiving member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum packaging device 2 Housing 3 Pressure-resistant container 4 Gas nozzle 5 Packaging bag 6 Sealing device 7 Vacuum pump 8 Transformer 9 Operation panel 10 Container main body 11 Lid 12 Hinge mechanism 13 Lock mechanism 14 Transparent plate material 15 Window 20 Exhaust port 21 Intake side flow Path 22 Vacuum chamber 23 Seal material 24, 25 Hinge mechanism support member 26 Support shaft 27 Arm 30 Compression coil spring mechanism 31 Rod 35 Packaged object 40 Bag receiving member 41 Locking portion 42 Side receiving member 43 Side wall portion 44 Top surface portion 45 Engaging portion 46 Bag receiving surface 50 Lower heater block 51 Upper heater block 52, 53 Heat wire 54 Press-contact cylinder 55 Return spring 56 Opening hole 59 Branch flow path 60 Solenoid valve

Claims (1)

(57) [Claims] The container body and the upper opening of the container body are tightly closed.
A package consisting of an openable and closable lid that stores items to be packaged
A pressure-resistant container for storing the packaging, and a vacuum for depressurizing the inside of the pressure-resistant container to deaerate the inside of the packaging bag.
A pump, which is disposed in the pressure vessel and seals an opening of the packaging bag.
In a vacuum packaging device comprising: a sealing device;The pressure vessel is raised on the operation front side facing the operator,
The other side is inclined so that it is low, Hinge mechanism that supports the lid so that it can open and close with respect to the container body
On the lower side of the pressure vessel,  The sealing device is arranged close to the high side in the pressure-resistant container, and the locking portion is tilted on both inner side surfaces along the tilt direction of the container body.
A plurality of side receiving members are formed in the oblique direction, and a horizontally long bag receiving member is detachably engaged between the two side receiving members.
Hand, and select the locking portion that engages the left and right ends of the bag
Vacuum packaging equipment characterized in that the position of the material can be adjusted
Place.