JPS58216517A - Compression packing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention compresses and packs bulky materials with apparently low density, such as cut fibers, tow, yarn, and cotton-like materials produced in textile factories, into predetermined shapes in fixed amounts. It is about the method.

Conventionally, materials with apparently low density and bulk (hereinafter referred to as packaged items) as described above are mechanically shaped into a predetermined shape for convenient handling and transportation. Techniques related to compression packaging in which the compression-molded article is automatically packed with packaging material and further banded after compression molding are disclosed in Japanese Patent Publication No. 48-12277, Japanese Patent Publication No. 48
-34156 Publication, Special Publication No. 54-20912,
Special Publication No. 55-9655, Special Publication No. 56-52763
It has been disclosed in many publications such as Japanese Patent Application No. 2003-100002, and has also been put into practical use.

The outline of such conventional technology is that a certain amount of an object to be packed is compressed by upper and lower pressing bodies, and a packaging material consisting of an upper sheet and a lower sheet is placed above and below the compression-molded object to be packed.
These upper and lower packaging materials are bent to match the external shape of the compression-molded object at the front, back, left and right sides of the object to be packed.
This method is followed by wrapping a band around its outer circumference.

Both ends of the packaging material covering the front and rear surfaces of the compression-molded object to be packaged were secured by banding after being transferred from the state shown in Figure 1 to the state shown in Figure 2. It is.

However, when banding is carried out in this way, the object to be packed that has been compression-molded with the band will be further rolled up when banding, so naturally the external dimensions of the object to be packed will become even smaller. The packaging material, which has been bent to match the external shape of the object to be packed that has been compression-molded, bends over the front and rear end surfaces of the object to accommodate changes in the height of the object, as shown in Figure 3. This has the disadvantage that the outer appearance is significantly deteriorated due to the protruding parts, and foreign matter can enter the packaged items through the gaps created in the protruding parts, thereby destroying the effectiveness of the packaging.

As a result of various studies to eliminate such drawbacks, the present inventors found that
Instead of covering the entire circumference of the item with packaging material and then wrapping it with a band, as in the conventional method.

When the front and back surfaces of the packaged item are not covered with packaging material,
In other words, the packaging material is not bent so as to come into contact with the front and rear surfaces of the item to be packaged, but is kept in a cylindrical state with its front and back sides unbent, and then banding is performed first, and then the top, bottom, left and right sides, or body part, are tied together. At least the front and rear surfaces of the object covered with packaging material and strapped with a band are compressed from above and below to make the bands loose on both sides of the object. Fold the protruding parts of the package to fit the front and rear sides of the packaged item, and bend the parts of the front and rear sides of the packaged item that protrude from the sides of the packaged item to the sides. ’/F and the packaging material covering the sides of the object to be packed, and then release the compression from the top of the object to be packed, the object to be packed will return to its original state due to its elasticity. The present invention was completed by discovering that it is possible to finish the packaging so that the front and back sides are beautiful and have no gaps, with no protruding packaging material.

That is, 1 the present invention places a packaging material on the top and bottom surfaces of a compression-molded object to be packed, bends the packaging material to cover both sides of the object, and then inserts the packaging material from above the packaging material. A band is hung around the object, and then at least the front and rear parts of the object to be packed are compressed in the vertical direction, and in that state, the packaging material that protrudes forward from the front of the object and backward from the rear surface is pulled upward. Then, the packaging material is bent from below so as to come into contact with the front and rear surfaces of the object to be packed, and the packaging material that protrudes further laterally than the side surfaces of the object to be packed on the front and rear surfaces of the object to be packed is folded to the side surfaces of the object to be packed, respectively. To provide a compression packing method characterized in that after bending and inserting between a band and a packaging material on the side of the object to be packed, vertical compression of at least the front and rear parts of the object to be packed is released. It is.

Hereinafter, the compression packaging method according to the present invention will be explained in detail with reference to the drawings.

FIGS. 4(A) to 4(N) are explanatory diagrams showing the implementation steps of the method of the present invention.

In the drawings, 1 is an object to be packed, 2 is a packaging material consisting of upper and lower sheet-like materials such as Herashan cloth, which covers the object 1 to be packed, and 3 is a packaging material that covers the body of the object 1 to be packed outside the packaging material 2. It is a band that is hung from the front.

This band is a band that is hung and rotated one by one approximately perpendicularly to the longitudinal direction of the object to be packed 1. 4 is a pressing body for vertically compressing at least the front and rear portions of the article 1 to be packaged, the body of which is covered with the packaging material 2 and further wrapped around the body with a band 3; A sagging prevention tool 6 presses both sides of the packaged object 1 pressed by the pressing body 4 to prevent the packaging material 2 from sagging; Item to be packed 1
A lifting tool 7 lifts up the center of each protruding part of the upper packaging material 2 that projects forward from the front surface of the upper packaging material 2 and the upper packaging material 2 that projects rearward from the rear surface; A lower folding tool 8 bends the lower packaging material 2 so that it comes into contact with the front and rear surfaces of the object to be packed 1 in the folded state. An upper folding tool 9 folds the upper packaging material 2 so that it comes into contact with the front and rear surfaces of the object to be packed 1 after lifting the upper packaging material 2, and 9 is used for packaging by the lower and upper folding tools 7 and 8. Packaging materials 2 that protrude further laterally than the side surfaces of the object to be packed 10 on the front and rear surfaces of the object to be packed 1 when the material 2 is bent so as to come into contact with the front and rear surfaces of the object to be packed 1 are respectively referred to as objects to be packed. A bending insertion tool 10 is inserted between the packaging material 2 and the band 3 on the side surface of the object to be packed 1 by bending it toward the side surface of the item 1; In order to control the bending start position of the object 1,
Partitioning tools 11 are brought into contact with the front and rear side edges of the packaging material 1, and 11 is a holder for holding the tip of the packaging material 2 which is bent and inserted into the side surface of the object 1 by the bending insertion tool 9.

To carry out the method of the present invention in such a configuration.

First, as in the prior art, a packing material 1 in which a certain amount of packing material is compression-molded is prepared, and a packaging material 2 made of a sheet-like material is placed above and below the packing material 1. 2 is bent so as to cover both sides of the object 1 to be packed, and then the object 1 to be packed is tied with a band 6 from above the packaging material 2 as shown in FIG. 4(A). Next, at least the front and rear parts of the article 1 to be packed, whose trunk is covered with the packaging material 2 and further wrapped around the trunk with a band 6, are moved vertically by the suppressor 4 as shown in FIG. Compress as shown. It is preferable that the pressing surface of the pressing body 4 has an arcuate shape so that the band 3 is not unduly deformed. In this manner, the packaging material 2 on both sides of the object to be packaged 10 is pressed by the sagging prevention device 5 while the compression body 4 is compressing the material as shown in FIG.
As shown in c), an upper packaging material 2 that prevents the packaging material 2 from sagging and protrudes forward from the front surface of the object 1 to be packed, and an upper packaging material 2 that projects rearward from the rear surface of the object 1 to be packed.
upwardly at the center of its protrusion by the lifting tool 6
As shown in Figure (D), the upper packaging material 2 is lifted so that it does not get in the way of the bending of the lower packaging material 2, and the lower packaging material 2 protruding from the front and rear surfaces of the object to be packed 1 is removed as shown in Figure 4. As shown in (E), the lower bending part 7 is bent so as to contact the front and rear surfaces of the object to be packed 1, and in this state, lifting of the upper packaging material 2 by the lifting tool 6 is released, and the object to be packed is bent. The upper packaging material 2 protruding from the front and rear surfaces of the object 1 is bent by the upper bending tool 8 so as to come into contact with the front and rear surfaces of the object 1, as shown in FIG. The packaging material 2, which protrudes forward from the front surface and rearward from the rear surface of the object to be packed 1, covers the front and rear surfaces of the object to be packed 1, respectively, by the bent lower and upper bending tools 7 and 8. However, the portions that did not come into contact with the front and rear surfaces of the object to be packed 1 protrude further laterally from the side surfaces of the object to be packed 1 in a triangular shape on the front and rear surfaces of the object to be packed 1. Therefore, as shown in FIG. The partitioning tool 10 is brought into contact with the end of the side surface, and the suppression of the packaging material 2 on both sides of the object to be packed 10 by the anti-sag tool 5 is released, and then the object to be packed 1 is removed as shown in FIG. Items to be packaged 1 on the front and rear sides of
A packaging material 2 that protrudes further laterally in a triangular shape than the side surface of the packaging material 2.
The outer surface Krr3 of the partition tool 10 is bent by the bending insertion tool 9 to the side surface of the object to be packed 1, and the packaging material 2 covering the side surface of the object to be packed 1 and the band 6 located on the outer surface thereof. Insert between. When the folding and insertion of the packaging material 2 by the folding insertion tool 9 is completed, the lower and upper folding tools 7 and 8
The bending insertion tool 9 and the partitioning tool 10 are removed from the object to be packed 1, and then the ends of the folded and inserted packaging materials 2 are held together with the holder 11 as shown in FIG. The packaging material 2 is held pressed to the side so that the folded and inserted packaging material 2 does not move to the front side or the rear side of the item to be packed 1,
When the pressure of the suppressor 4 pressing the object 1 to be packed from above and below is released, and then the holding by the holder 11 is released, the object 1 to be packed returns to a state close to the state in which it was initially banded due to its elasticity. Therefore, the packaging material 2 which is bent and inserted between the packaging material 2 covering the side surface of the object to be packed 1 and the band 6 on its outer periphery covers the band 3 and the side surface of the object to be packed 1. It is firmly held between the packaging material 2 and compression packaging is completed as shown in FIG. 4 (N).

The compression packaging method according to the present invention as described in detail above does not cover the entire surface of the object to be packed, including the front and rear surfaces, with a packaging material and then wrap it with a band, as in the conventional compression packaging method. Only the body of the packaged item is covered with the packaging material, and then the body is tied with a band, and then at least the front and rear parts of the packaged item are compressed in the vertical direction to adjust its height with the band. In this state, cover the front surface of the object with packaging material that protrudes forward from the front surface of the object, and also protrudes rearward from the rear surface of the object. Cover the rear surface of the object with the packaging material that covers the front and rear surfaces of the object, and insert the remaining packaging material between the band and the packaging material that covers the sides of the object. Then, in that state, at least the front and rear parts of the object to be packed are released from being compressed in the vertical direction, and the object to be packed is applied with a force that attempts to restore the state before being compressed in the vertical direction due to its elasticity. This is a method to securely hold the packaging material, and as a result, the packaging material is

Since there is no sagging on the front and rear sides of the packaged items, the packaging is not only beautiful, but also there is no gap caused by sagging, which eliminates the problem of foreign matter getting into the packaged items. It is an innovative method that can mechanize and automate all the operations for carrying out the method of the present invention, as shown in the embodiments described above, and its industrial value is extremely high.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing a state in which packaging materials are installed above and below the material to be packed, Figure 2 is a perspective view of the material to be packed covered with the packaging material just before being banded, and Figure 6 is a conventional FIGS. 4(a) to 4(x) are explanatory diagrams showing the implementation steps of the method of the present invention. 1. Item to be packed 2. Packaging material 5. Bunt 4. Pressing body 5. Sag prevention tool 6. Lifting tool 7. Lower bending tool 8. Upper bending tool 9. Bending Insertion tool 1
0... Partition tool 11... Holder Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. A packaging material is placed on the top and bottom surfaces of a compression-molded object to be packed, and after the packaging material is bent to cover both sides of the object, After applying force around the object to be packed, at least the front and rear parts of the object to be packed are compressed in the vertical direction, and in that state, the object is moved forward from the front side and backward from the rear side, respectively. Bend the protruding packaging material from below and above so that it touches the front and rear surfaces of the object to be packed, and cover the front and rear surfaces of the object with the packaging material that protrudes further to the side than the sides of the object to be packed. After being bent to the side of the packaged item and inserted between the packaging material and the band on the side of the packaged item, the compression in the vertical direction of at least the front and rear parts of the packaged item is released. Compression packing method. 2. The compression packing method according to claim 1, characterized by a suppressing surface of the suppressing body that vertically compresses at least the front and rear parts of the banded object to be packed. 6. When releasing the vertical compression of at least the front and rear parts of the object to be packed, the tip of the packaging material inserted between the band and the wrapping material covering the sides of the object to be packed must be pressed and held. The compression packaging method according to claim 1 or 2.