JP2002104330A - Packaging machine and packaging article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging article which is enabled to seal once again after the packaging article was unsealed. SOLUTION: The machine is provided with a center sealer 7 for forming a packing bag 2 of a film or a sheet while accommodating a predetermined amount of unpacked articles 1 which are convey on a belt conveyor 6, a presser brush 8 for straightening an upper surface of the packing bag 2, a seal means 9, 9' (end-sealer) for sealing both longitudinal ends of the packing bag 2, a sealer cutter 10 which cooperates with the seal means 9, 9' for cutting off at sealed part, a first deaeration means 11 (a deaeration nozzle) for discharging air inside the packing bag 2 by blowing air from above the packing bag 2 which is in a state of accommodated unpacked articles 1, a second deaeration means 12 (a deaeration sponge) for discharging air inside the packing bag 2 through a depression from above at a forward end part or a back end part of the packing bag 2 where unpacked articles 1 are not situated by going up and down together with the seal means 9, 9', and a discharge conveyor 13 for discharging the packing bag 2 in which unpacked articles 1 are housed to send it a second process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging apparatus for storing a predetermined amount of articles to be conveyed on a belt conveyor in a packaging bag made of a film or a sheet and closing the longitudinal end of the packaging bag. The present invention also relates to a package in which a predetermined amount of items to be packaged is stored in the packaging bag.

[0002]

2. Description of the Related Art Conventionally, a predetermined amount of an object to be packaged conveyed on a belt conveyor is stored in a packaging bag made of a film or a sheet, and the packaging bag is obtained by a packaging device for closing the longitudinal end of the packaging bag. The packaged product, as shown in FIG.
Since both ends in the longitudinal direction of the packaging bag 2 in which the article to be packaged 1 such as a roll pan is stored are close to and sealed with the article to be packaged 1, once one of the seal portions 3, 3 'is opened, The opened part could not be resealed. As shown in FIG. 4 (B), only one end in the longitudinal direction is sealed, a predetermined amount of the package 1 is stored toward the seal portion 3, and the open portion 4 at the other end and the package 1 are sealed. 1
A packaged product in which the packaging bag 2 is squeezed by a closure 5 such as a twisted wire or a C-shaped closure at a position between the two can be easily opened and closed by the closure 5,
There is a possibility that foreign matter may be mixed during the transportation process after the production of the packaged product.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the possibility of foreign matter being mixed in a transportation process after a package containing a predetermined amount of articles to be packaged in a packaging bag made of a film or a sheet. Moreover, it is an object of the present invention to provide a package which can be closed again even after the package is once opened, and to provide a packaging apparatus which can easily produce the package.

[0004]

In order to solve the above-mentioned problems, a first aspect of the present invention is to store a predetermined amount of articles to be conveyed on a belt conveyor in a packaging bag made of a film or a sheet. A packaging device for closing an end of a bag, wherein the packaging bag has a sufficient length that can be squeezed by a closure at a position between the end of the packaging bag and the article to be packaged. Both ends are sealed by being provided with sealing means for sealing both ends in the longitudinal direction and first deaeration means for blowing air from above the packaging bag and discharging air in the packaging bag. The packaging bag can be squeezed with a closure in a state where the packaged bag is closed, and in addition to the first invention, a portion where the article to be packaged near the front end or the rear end of the packaging bag is not located is pressed from above. To exhaust air from the packaging bag By being provided with the second deaeration means, it is easier to squeeze the packaging bag with a closure in a state where both ends are sealed. Is characterized by being in the first and second order, whereby degassing can be performed smoothly. A fourth invention is a packaged product in which a predetermined amount of a packaged object is stored in a packaging bag made of a film or a sheet, wherein the packaging bag is sealed at both ends in a longitudinal direction, and the packaged product is The package bag is housed in a position close to a seal portion at one end of the both end seal portions, and the packaging bag is squeezed by a closure at a position between the seal portion at the other end and the article to be packaged. Therefore, there is no possibility that foreign matter is mixed in the transportation process after the production of the packaged product, and the packaged product can be closed again after the package is once opened. Is characterized in that it is smaller than the bonding strength of the seal portion at the one end, so that the seal portion on the side to be opened is easily opened. Also, the material of the film or sheet is desirably high-density polypropylene, and the first deaeration means is:
It is desirable to be an air nozzle, the second deaeration means is a material having elasticity, for example, a highly foamed urethane sponge, the degree of deaeration, the packaging object is not deformed,
It is sufficient that the packaging bag can be squeezed by a closure in a state where both ends of the packaging bag are sealed,
The bonding strength is desirably such that the shape of the packaging bag is maintained when the sealing portion is peeled off by hand and opened.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following embodiments at all, and may be changed as appropriate without departing from the scope of the invention. Can be implemented. FIG. 1 shows a three-side seal type packaging device, in which a packaged object 1 conveyed on a belt conveyor 6 is stored in a predetermined amount inside a film or sheet while forming a packaging bag 2 with a center sealer 7. Pressing brush 8 for adjusting the upper surface of the packaging bag 2
Sealing means 9, 9 '(end sealer) for sealing both ends in the longitudinal direction of the packaging bag 2, and a sealer cutter 10 for cutting at the sealing portion in conjunction with the sealing means 9, 9'
A first deaeration means 11 (air nozzle for deaeration) for blowing air from above the packaging bag 2 to discharge the air in the packaging bag 2 in a state where the packaged object 1 is stored; 9 '
A second deaeration means 12 (a degassing sponge) that pushes up and down together with the front end or the rear end of the packaging bag 2 and presses a portion where the packaged object 1 is not located from above to discharge air in the packaging bag 2. )
And an unloading conveyor 13 for sending out the packaging bag 2 in which the articles 1 are stored to the next process. FIG. 2 shows the arrangement of the first deaeration means 11 and the second deaeration means 12. The first deaeration means 11 is supported by the second deaeration means 12 and moves up and down together with the sealing means 9 and 9 '.
After the front end of the packaging bag 2 is sealed by the sealing means 9, while the sealing means 9 and 9 'are open up and down, the packaging bag 2 in which the article 1 is stored is removed from the first degassing means 11. Is exposed to the air pressure (60 Pa), and passes through the inside of the packaging bag 2 while being degassed. Then, when the sealing means 9 and 9 ′ are closed, the packaged object 1 is not positioned by the second degassing means 12. The portion is pressed from above to release the air in the packaging bag 2, and then the rear end of the packaging bag 2 is sealed by the sealing means 9 '. At this time, the portion where the package 1 is not located between the rear end of the packaging bag 2 and the package 1 has a sufficient length that can be squeezed by the closure 5 in the next step. As shown in FIG. 3 (A), the obtained packaged product has a package bag 2 in which both ends in the longitudinal direction are sealed, and
Is stored near the seal part 3 at one end, and the packaging bag 2 is squeezed by the closure 5 at a position between the seal part 3 'at the other end and the article 1 as shown in FIG.
The joining strength is made smaller than that of the seal portion 3 so that the seal portion 3 'can be easily opened. This is, for example, 2000
At the time of operation at rpm, the heating temperature of the sealing means 9 ′ is 1
This can be achieved by setting the heating temperature of the sealing means 9 at 16 ° C. and 124 ° C.

[0006]

As described above, according to the present invention, there is a possibility that foreign matter may be mixed in a transportation process after producing a packaged article in which a predetermined amount of articles to be packaged is contained in a packaging bag made of a film or a sheet. It is possible to simply provide a package that can be closed again even after the package is once opened, and to provide a packaging device that can easily produce the package.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a basic configuration of an embodiment of the packaging device of the present invention.

FIG. 2 is a perspective view showing a deaerator in FIG.

FIG. 3 is a perspective view showing an embodiment of the packaged product of the present invention.

FIG. 4 is a perspective view showing a conventional packaged product.

[Explanation of symbols]

1 is an article to be packaged, 2 is a packaging bag, 3, 3 'is a seal part,
Is an open part, 5 is a closure, 6 is a belt conveyor,
7 is a center sealer, 8 is a holding brush, 9 and 9 'are sealing means (end sealer), 10 is a sealer cutter, 11 is first deaeration means (air nozzle for deaeration), 12
Is the second deaeration means (sponge for deaeration), 13 is the unloading conveyor

Claims (5)

[Claims] An object to be packaged conveyed on a belt conveyor is stored in a predetermined amount in a film or sheet packaging bag.
A packaging device for closing an end of the packaging bag, wherein the packaging bag has a sufficient length that can be squeezed by a closure at a position between the end of the packaging bag and the article to be packaged. A packaging apparatus, comprising: sealing means for sealing both ends in the longitudinal direction of a bag; and first deaeration means for blowing air from above the packaging bag to discharge air in the packaging bag. 2. The apparatus according to claim 2, further comprising a second deaeration means for pressing a portion of the packaging bag near the front end or the rear end where the article to be packaged is not located from above to discharge air in the packaging bag. The packaging device according to claim 1, wherein 3. The packaging apparatus according to claim 2, wherein the operation start sequence of said degassing means is first and second. 4. A package in which a predetermined amount of an article to be packaged is stored in a packaging bag made of a film or a sheet, wherein said packaging bag is sealed at both ends in the longitudinal direction, and said packaged article is A packaged product, wherein the package bag is housed close to a seal portion at one end of both end seal portions, and the packaging bag is squeezed by a closure at a position between the seal portion at the other end and the article to be packaged. . 5. The package according to claim 4, wherein the joining strength of the sealing portion at the other end is smaller than the joining strength of the sealing portion at the one end.