JPS6014643Y2 - packaging equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to a packaging device, and in particular, folds are formed in a continuous packaging film, and the corners that will be used for packaging are cut off to create a packaging film of a specified size. The package can be completed by placing the item to be packaged in the center, folding it into a corner, and sealing the top.

In addition, this invention has a packaging form that is easy to open to take out the packaged item, and the packaging film has folds to form folds so that the packaging is not easily deformed and has a beautiful appearance like a small bag. This invention is characterized by the fact that it has a unique packaging form, and this invention also makes it possible to obtain a new packaging form by using an overwrapping mechanism.

Next, an embodiment of the device of this invention will be explained with reference to the drawings.

Although it is preferable for the packaging device according to this invention to use a packaging film that has heat-sealability, it is also possible to use a packaging film that is a packaging material that does not have heat-sealability and has a tendency to crease. The drawing shows two layers of packaging film stacked one on top of the other, and since the item to be packaged is food, aluminum foil was used as the inner packaging film, but other packaging materials may be used, and depending on the item to be packaged, It is also possible to package the product by using a single packaging film and forming folds.

Figure 1 is a perspective view showing the outline of the packaging device of this invention;
Figures (a) to (b) are simplified front views showing the packaging film folding process, Figure 3 is a perspective view showing the order of the packaging film folding process and packaging process, and Figure 4 is a folding process. The enlarged slope view of the pleated part, Figures 5 and 6 are the same as Figure 4.
It is a side sectional view taken along lines A-A and B-B.

In the figure, a roll-shaped take-up film 10 is attached to the center of a wide packaging film 1 and a narrow packaging film 2 is pasted to the center, and these packaging films 1 and 2 are rotated by feed rollers 33 and 34, which will be described later. The film is fed out intermittently in the direction of the arrow, transferred to the support plate 12 via the guide roll 11, and progresses. Approximately 5rIr
! ! The rollers 13 and 13 for folding lines are lightly pressed from above at a position of about L to form two fold lines on the packaging films 1 and 2 (see Fig. 2 (a)). continues to advance intermittently in the direction of the arrow by the rotation of the film feed rollers 33 and 34.

In terms of mechanism, it is also possible to use a mechanism in which only the folding process mechanism advances continuously.

After the two fold lines are thus formed on the packaging films 1 and 2, the central folding plate 15a extends along the traveling direction of the films 1 and 2 and has a folding plate 15b extending left and right at the end. The film 1,
2 will pass.

Furthermore, FIG. 4 shows an enlarged slanted view of the fold forming portion, showing the folding line rollers 13a, 13b and the central folding plate 15.
a, a part of the folding plate 15b integrally connected to the ends in the length direction, a pair of left and right folding plates 16a and 16b sandwiching the central folding plate 15a with a gap between them, and the left and right The figure shows the relative position with a part of the heating device 19a which is provided below the tips of the folding plates 17a and 17b and which operates up and down, and the packaging films 1 and 2 and the support plate 12 are omitted for convenience of explanation.

The center folding plate 15a has an upwardly tapered tip on the side of the rollers 13a and 13b, and as shown in FIGS. 5 and 6, the cross section of the portion adjacent to the left and right folding plates 16a and 16b is ladder-shaped. The cross section of the portion adjacent to the left and right folding plates 17a and 17b is rectangular.

Further, the lower surface of the center folding plate 15a is attached so that there is a slight gap between the upper surface of the support plate 12 and the packaging films 1 and 2 through which they are overlapped.

On the other hand, the ends of the left and right pair of folding plates 16a and 16b on the center folding plate 15a side have inclined surfaces similar to the slopes on both sides of the central folding plate 15a, and a vertical surface at the bottom thereof, as shown in FIG. However, it has a shape that does not obstruct the advancement of the packaging film 1.

In addition, as shown in FIG. 6, the ends of the pair of left and right folding plates 17a and 17b on the center folding plate 15a side are shaped with a rectangular cross section cut out from the bottom of the upper vertical plane, and are located on the lower surface thereof. The supporting plate 12 is provided with lifting holes 21a and 21b into which the heating devices 19a and 19b at the protruding ends of the lattice-shaped heating plate 19 can be fitted, and the lattice-shaped heating plate 19 is provided with an electric heater 18 therein. , its length is the same as the width of the left and right folding plates 17a, 17b.

A tip 20 of a lever that operates up and down is attached to the bottom surface of the hot plate 19, and when the packaging films 1 and 2 advance, the tip 20 of a lever rises to move both protruding end moving plates 19a and 19b of the hot plate through the lifting holes 21a,
21b, the bent plates 17a and 17b are cut out 17c,
17d, the folded portions of the packaging films 1 and 2 are continuously heat-sealed to form folds 3, and when the packaging films 1 and 2 are stopped, the lever 20 is lowered to move the moving plates 19a and 17d. 19b is separated from the packaging films 1 and 2.

The packaging films 1 and 2 which are folded at the line A-A in Fig. 4 form two continuous folds as shown in the cross-sections of Fig. 2 (ro) and Fig. 5. .

Next, when the packaging films 1 and 2 come to the same B-B line position, they are continuously folded and heat-sealed by the moving plates 19a and 19b as shown in FIGS.
The folds 3 of the book are formed as shown in FIG.

Next, the packaging film 1゜2 passes through the slight gap between the lower surface of the folding plate 15b and the upper surface of the support plate 12, and the folds 3 are formed more stably, and the next process is carried out, as shown in Fig. 3. The mouth and mouth are taking place between this.

Next, returning to FIG. 1, the device of this invention enters the process of cutting both edges of the packaging film 1 in an arc, and cuts both edges of the packaging film 1 with a pair of left and right semicircular cutting blades 22a.
22b is used to move up and down when the packaging film 1 is stopped, and both edges of the packaging film 1 are cut off in an arc shape to form a notch 4 as shown in FIG.

The reason why both edges are cut off into arcs is because of the packaging format.When wrapping with a rectangular packaging film, the four corners overlap and it is not possible to package in a good shape, so the extra four corners are cut off to clean it.

In this way, the packaging film 1 and the packaging film 2, which have been cut off in an arc shape with a space between their edges, are overlapped and folded together to form folds 3.
is formed and moves on the support plate 12 to the next packaging process.

That is, in FIG. 1, the overlapping packaging films 1 and 2 advance from the tip of the support plate 12 with a slight gap onto the adjacent rectangular folding cylinder 24 having through holes at the top and bottom, and are supported by this, and the packaging films When the 1.degree. 2 stops, the scissors 23 are operated to cut the dotted line shown in the figure.

At the same time as the cutting ends, the packaged object 5 is transferred to the third
As shown in FIG. 2, the wrapping paper is fed and placed in the center, and the packaging films 1 and 2 and the object to be packaged 5 are supported by a support fitting (not shown) that moves up and down in the square hole of the square folding cylinder 24. The object to be packaged 5 and the packaging films 1 and 2 are held by the pushing metal fitting 25 located above the square folding cylinder 24 and operating vertically, and the supporting metal fitting. 1, 2 and the packaged object 5, as shown in FIG. It is folded downward into the square hole 27 of the stationary disk 26 and held there.

When held in the square hole 27 of the disc 26, the bottom surface of the shape shown in the figure is supported by a support disc 29 fixed under the disc 26.

At the same time as being held by the disc 26, the supporting metal fitting descends downward, and the pushing metal fitting 25 passes through the square hole of the square folding cylinder 24 and rises, stopping at the original position.

Next, although not shown, one of the folding pieces 1a shown in the figure is activated by the operation of a folding plate provided on the side of the square folding cylinder 24.
is folded inward and when the disc 26 rotates intermittently in the direction of the arrow, one of the folding pieces 1a also comes into contact with the tip of the upper holding plate 28 and is also folded inward, resulting in the shape shown in the figure, and the folding pieces 1a and 1a are folded inwards. A disk 2 is placed between the top of the folding piece 1avla and the folding pieces 1b and lb so that the folding is maintained as it is.
An upper presser plate 28 fixed in an arc shape is inserted into and in contact with the movement course of the square hole 27 of No. 6.

The shape of the figure is a pair of open moving plates 3 due to the intermittent rotation of the disk 26.
0a.

Stop at position 30b.

A pair of moving plates 30a and 30b are provided above the disk 26 to open and close, and when the configuration shown in FIG. When the heat sealing is completed, it opens and becomes the shape shown in Fig. H, forming a sealed portion 6.

Since the folding pieces 1a, la and the folding pieces 1b, lb are not in close contact with each other, there is a gap between the top of the folding pieces 1a, la and the bottom of the seal part 6, resulting in a breathable packaging form, and the four sides Folds 3 are formed in the package, resulting in a packaging shape that is difficult to deform.

When the upper sealing process is completed, the disc 26 rotates intermittently, and the packaging form shown in Figure 1 stops at the next bending discs 31a and 31b, and the sealing part 6 is sandwiched and folded and sealed by the closing operation of the folding discs 31a and 31b. The fold 7 shown in the figure is formed to complete the package 9.

This completed package 9 is moved by the intermittent rotation of the disk 26, and comes out from the upper presser plate 28 that is in contact between the folding pieces 1b, lb and above the folding pieces 1a, la under the upper seal 6. When the receiver of the bottom plate 29 stops at an unsupported place, the package 9 falls downward through the square hole 27 and the disc 26
It is transferred onto a belt conveyor 32 placed below, and moves on to the next process.

In order to further bend the fold 7 to form the fold 8 as shown in Figure 2, a clamping device (not shown) is further provided at the stop position of the square hole 27, thereby forming the package shown in Figure 2. 9 can be completed.

In this case, it is necessary to move the location of the belt conveyor 32.

As explained above, the device according to this invention forms folds 3 on two stacked continuous packaging films 1 and 2, cuts off the part of the film that obstructs corner folding, and cuts the packaging film 1°2 into a specified size. The process of supplying the packaged item 5 to the center, surrounding and folding the packaged item 5 into a square using a square folding cylinder 24, a push-down metal fitting 25, a support metal fitting, a folding plate, an upper pressing plate 28, etc., and sealing the upper part. The package was then completed, making it possible to obtain a new and beautiful saddle-shaped package that is easy to open, has air permeable folds 3 on all sides, and is difficult to deform.

[Brief explanation of drawings]

Figure 1 is a perspective view showing the outline of the packaging device of the present invention, Figures 2 (i) to (2) are simplified front views showing the order of the folding process of the packaging film, and Figure 3 is the packaging film. FIG. 4 is a schematic perspective view showing the order of the fold forming process and the packaging process; FIG. 4 is a perspective view showing an outline of the fold forming apparatus; FIG.
FIG. 6 is a sectional view taken along lines AA and BB in FIG. 4. In the figure, 1 and 2 are packaging films, 12 is a support plate, 13a, 1
3b is a roller for creases; 15a is a center folding plate; 1
5b is a folding board, 16a and 16b are folding boards 1.17
a and 17b are folding plates, and 22 a and 22 b are cutting blades.

Claims (4)

[Scope of utility model registration request] (1) A support plate 12 along which a continuous packaging film used for laminating a narrow width film and a wide width film is transported, and a pair of creases for creating creases from above the packaging film. rollers 13a, 13b
and a central folding plate 15a, and a pair of left and right folding plates 16a provided adjacent to both left and right sides of this folding plate 15a.
, 16b, the support plate 12 and the center folding plate 15
The bent film portion is sandwiched and folded between the center folding plate 15a and heating plates 19a and 19b provided adjacent to the left and right sides of the center folding plate 15a, and a cutout into which the heating plate is inserted. With the help of left and right bending plates 17a and 17b having portions 17c and 17d and the heating plates 19a and 19b, the folded film portions are heat-sealed to form folds 3, and the center folding plate 15a is heated.
The film is sandwiched between a bending plate 15b connected to the rear end and extendable in the width direction of the film and the support plate 12 to perform stable molding, and both edges of the film are cut off to form cutouts 4. A pair of left and right semicircular cutting blades 22a, 22b for cutting, and a square folding cylinder 24 which is adjacent to the tip of the support plate 12 with a slight gap and has a square hole and a folding plate on the side; The scissors 23 located in the gap and the supporting metal fittings located above the square folding cylinder 24 hold the object to be packaged and the package of the packaging film 1.2 and move up and down inside the square hole of the square folding cylinder 24. and the corner-folding cylinder 2.
a disk 26 which has a square hole 27 below the disk 26 and rotates intermittently; a support disk 29 which is fixedly installed below the disk 26 and supports the bottom of the package; an upper pressing plate 28 fixed in an arc shape on the movement course of the disc 27; a pair of heating discs 30a that open and close at a position above the disc 26 to sandwich and heat-seal the folded pieces of the package; 3
0b, and folding discs 31a and 31b for sandwiching the seal portion of the package and folding and sealing the package. (2) The packaging device according to claim 1, wherein the folding rollers 13a and 13b are provided slightly inside the edges of the narrow packaging film. (3) The left and right folding plates 16a and 16b have inclined surfaces similar to the inclined planes of the center folding plate 15a on both sides, and vertical surfaces connected to the lower part of the central folding plate 15a. A packaging device according to Claim 1 of the Utility Model Registration Claim, wherein the packaging device is arranged so as to be free from obstruction. (4) The left and right bending plates 17a and 17b are located near both sides of the central bending plate 15a, and the vertical plane and the heating plates 19a and 1 at the lower end thereof are
The packaging device according to claim 1, in which the portion 9b has a raised and lowered portion.