JP4392525B2 - Packaging equipment and products - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a packaging device for storing a predetermined amount of an article to be packaged conveyed on a belt conveyor in a packaging bag made of a film or a sheet, and sealing the longitudinal end of the packaging bag, and the packaging bag. The present invention relates to a packaged product in which a fixed amount of packaged items is stored.
[0002]
[Prior art]
A packaged article obtained by a packaging apparatus for storing a predetermined amount of a packaged article conveyed on a conventional belt conveyor in a packaging bag made of a film or a sheet and sealing the longitudinal end of the packaging bag is shown in FIG. As shown in FIG. 4 (A), since both ends in the longitudinal direction of the packaging bag 2 in which the article 1 to be packaged such as a roll bread is stored are close to the article 1 to be sealed, the seal portions 3 and 3 ′ Once either one of these was opened, the opened portion could not be sealed again.
Further, as shown in FIG. 4B, only one end in the longitudinal direction is sealed, and a predetermined amount of the article to be packaged 1 is stored close to the seal part 3, and the open part 4 and the article to be packaged at the other end. A package 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 1 and 1 can be easily opened and sealed by the closure 5, but is transported after manufacturing the package. There was a risk of foreign matter entering the process.
[0003]
[Problems to be solved by the invention]
In the present invention, there is no possibility of foreign matters being mixed in the transportation process after producing a packaged product in which a predetermined amount of packaged goods is stored in a packaging bag made of a film or a sheet, and the packaged product is once opened. An object of the present invention is to provide a packaging device that can be sealed again later and to provide a packaging device that can easily produce the packaging product.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the first invention is to form a packaging bag from a film or sheet with a center sealer, convey a packaged article stored in a predetermined amount inside the packaging bag by a conveyor, and A packaging device for sealing an end, wherein the packaging bag is long enough to be squeezed by a closure at a position between one end of the packaging bag and the article to be packaged. Sealing means for sealing both ends in the direction, and a first release for discharging air in the packaging bag by blowing air from above the packaging bag before sealing one end of the packaging bag by the sealing means. By providing the air means, the packaging bag can be squeezed with a closure in a state where both ends are sealed. In addition to the first invention, the second invention moves up and down together with the sealing means and presses the portion of the packaging bag near the front end or the rear end where the article to be packaged is not located to By providing the second deaeration means for discharging the air, it becomes easier to squeeze the packaging bag with the closure in a state where both ends are sealed. The third invention is characterized in that the operation start order of the deaeration means is the first and second order, whereby the deaeration can be performed smoothly .
The material of the film or sheet is preferably high-density polypropylene, the first degassing means is preferably an air nozzle, and the second degassing means is a material having elasticity, for example, high foaming. The urethane sponge is desirable, and the degree of degassing is sufficient that the packaged bag is not deformed and that the packaging bag can be squeezed with a closure in a state where both ends of the packaging bag are sealed, and the bonding strength It is desirable to maintain the form of the packaging bag when the seal part is peeled off by hand and opened.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to the following embodiment at all, In the range which does not change the summary, it can change suitably and can implement.
FIG. 1 shows a three-side seal type packaging device, in which a package 1 to be transported on a belt conveyor 6 is stored inside a predetermined amount while forming a packaging bag 2 with a center sealer 7 from a film or sheet, The presser brush 8 for adjusting the upper surface of the packaging bag 2, the sealing means 9 and 9 '(end sealer) for sealing both ends in the longitudinal direction of the packaging bag 2, and the sealing portion 9 and 9' are interlocked with the sealing means 9 and 9 'to cut at the sealing portion. A sealer cutter 10 that performs the operation, and a first degassing means 11 (a degassing air nozzle) that blows air from above the packaging bag 2 to discharge the air in the packaging bag 2 in a state in which the article 1 to be packaged is stored; Second deaeration means for discharging the air in the packaging bag 2 by pressing from above the portion of the packaging bag 2 near the front end or the rear end where the article 1 to be packaged is not located. 12 (deaeration sponge) and packaging 1 is provided with a discharge conveyor 13 for feeding the accommodated packing bag 2 to the next step. FIG. 2 shows the arrangement of the first degassing means 11 and the second degassing means 12.
The first degassing means 11 is supported by the second degassing means 12 so as to move 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, 9 ′ are opened up and down, the packaging bag 2 in which the article 1 is stored is exposed to the air pressure (60 Pa) from the first degassing means 11 and the inside of the packaging bag 2 is exposed. Passed while being deaerated, and then when the sealing means 9, 9 ′ is closed, the second deaeration means 12 presses the portion where the article to be packaged 1 is not located from above to discharge the air in the packaging bag 2. Then, the rear end of the packaging bag 2 is sealed by the sealing means 9 ′. At this time, a portion where the article 1 to be packaged between the rear end of the packaging bag 2 and the article 1 to be packaged is not long enough to be squeezed by the closure 5 in the next step.
As shown in FIG. 3 (A), the packaged bag 2 is sealed at both ends in the longitudinal direction, and the package 1 is stored close to the seal portion 3 at one end. ), The packaging bag 2 is squeezed by the closure 5 at a position between the seal portion 3 ′ at the other end and the article 1 to be packaged. The bonding strength is made smaller than that of the seal portion 3 so that the seal portion 3 ′ can be easily opened. This can be achieved, for example, by setting the heating temperature of the sealing means 9 ′ to 116 ° C. and the heating temperature of the sealing means 9 to 124 ° C. during operation at 2000 rpm.
[0006]
【The invention's effect】
As described above, according to the present invention, there is no possibility that foreign matter may be mixed in the transportation process after producing a packaged product in which a predetermined amount of an object to be packaged is stored in a packaging bag made of a film or a sheet. It is possible to easily provide a packaged product that can be sealed again even after the packaged product has been opened, and to provide a packaging device that can easily produce the packaged product.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a basic configuration of an embodiment of the packaging apparatus of the present invention.
2 is a perspective view showing a deaeration means in FIG. 1. 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 a package, 2 is a packaging bag, 3 and 3 'are seal parts, 4 is an open part, 5 is a closure, 6 is a belt conveyor, 7 is a center sealer, 8 is a pressing brush, and 9 and 9' are sealing means (End sealer) 10 is a sealer cutter, 11 is a first degassing means (degassing air nozzle), 12 is a second degassing means (degassing sponge), and 13 is a carry-out conveyor.

Claims (3)

  A packaging device for forming a packaging bag from a film or sheet with a center sealer, transporting an object to be packaged stored in the packaging bag by a conveyor, and sealing an end of the packaging bag, the packaging bag Sealing means for sealing both ends in the longitudinal direction of the packaging bag so that the packaging bag has a sufficient length that can be squeezed by the closure at a position between the one end of the package and the article to be packaged. A packaging apparatus, comprising: a first deaeration unit that blows air from above the packaging bag to discharge the air in the packaging bag before sealing one end of the packaging bag.   A second deaeration unit that moves up and down together with the sealing unit and presses a portion of the packaging bag near the front end or the rear end where an article to be packaged is not located to discharge air in the packaging bag is provided. The packaging apparatus according to claim 1.   The packaging apparatus according to claim 2, wherein the operation start order of the deaeration means is a first order and a second order.

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