JPH0811812A - Foldable sheared sheet cassette - Google Patents

Abstract

PURPOSE:To improve convenience for carrying and storage of a sheared sheet for seal-packing powder and particle materials by an automatic binding device. CONSTITUTION:A foldable sheared sheet cassette comprises a cylindrical sheared sheet 5 made of flexible plastic which has been folded into axially stretchable bellows placed on an outer peripheral face of a cylindrical core 2 made of cardboard or an elastic plastic. An end of the sheet is inversely passed through a hollow part from an upper opening of the core 2 while the sheet is being stretched and pulled out from a lower opening to form a bag with a bottom, after an object to be packed is put in the sheet formed as a bag, the sheared sheet above the object is gathered to seal the object, and the gathered part is cut off to manufacture a sealed packing bag of the object. Then a flatly deformably cylinder with the core 2 comprising a plurality of arc members 3 which can be coupled foldably to one another is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a cylindrical shard sheet made of a soft plastic that is axially stretchable and folds into a bellows shape to automatically seal and package an object to be packaged such as a granular material or a powdery material. The present invention relates to a shard sheet cassette which is used in a packaging machine, and in which the cylinder core of the shard sheet is foldable to facilitate transportation and storage.

[0002]

2. Description of the Related Art Conventionally, powdery or granular raw materials have been hermetically packaged by an automatic binding device using a so-called shard sheet cassette.

This will be explained with reference to FIGS. 5, 6 and 7. This shard sheet cassette A covers the outer peripheral surface of a cylindrical cylinder core B made of cardboard or synthetic resin and is formed into a bellows shape which can be expanded and contracted in the axial direction. Cylindrical shard sheet C made of folded polyethylene
And the lower end edge of this shard sheet C is fixedly attached to the outer peripheral surface of the lower end of the cylinder core.
The upper edge of the is tied E.

Further, in the automatic packaging apparatus F for packaging using the shard sheet cassette A, a cylindrical tubular guide member J stands on the upper edge of a relatively large circular opening I penetrating the base H thereof. The shard sheet cassette A is inserted and arranged on the outer periphery of the guide member J. The binding portion E at the upper end of the shard sheet C of the shard sheet cassette A arranged in this way is inverted to the hollow portion of the cylinder core B while extending the shard sheet C from the upper end opening of the cylinder core B to form a cylindrical sheet C ′. When it is inserted and pulled out from the lower end opening of the cylinder core B and extended downward from the base H, the cylindrical sheet C ′ hangs downward from the upper end opening of the cylinder core B, and the binding portion E is at the bottom. The upper opening is set in a cylindrical bag shape with a bottom.

In the state where the cylindrical sheet C'is set in the bag shape as described above, the article L to be packaged conveyed by the belt conveyor K is introduced into the shard sheet C through the upper end opening of the cylindrical sheet C '. And the cylindrical sheet C '
The weight of the packaged object L ′ charged inside is measured by the weight scale M installed below the base H, and when the charged packaged object L ′ reaches a certain weight, the base H A bundling device (not shown) installed in the upper part automatically binds the upper and lower portions of the cylindrical sheet C ′ at the opening of the base H. Next, a sheet cutting device (not shown) cuts and divides the intermediate portion of the binding portion. This allows
The sealed packaging bag N in which the objects to be packaged are packaged by the cylindrical sheet C ′ having both ends bound. Then, the remaining binding portion forms the bottom portion at the time of packaging the next object to be packaged.
Such an operation is continuously repeated to pull out the sheets one after another from the shard sheet, and to hermetically package the objects to be packaged one after another.

By the way, in the case of a bellows-shaped film used for producing sausages having a diameter of about 2 to 3 cm, the film is thin and easily creases when dried, and it has the property of wrinkling when it contains water, and Since the diameter is relatively small, it retains a tubular shape when strongly compressed into a bellows, and therefore it is normally used without a tubular core, but in the shard sheet used for the packaging application, it is made of a relatively thick synthetic resin, Since the shard sheet itself cannot maintain the bellows shape because it is elastic and hardly folds, and a relatively large cylindrical shape is formed into a bellows shape, the above-mentioned cylinder core is necessary.

[0007]

However, in the shard sheet cassette having the tube core, when the diameter of the shard sheet becomes large, the diameter of the tube core becomes relatively large at the same time and the whole volume becomes large. Therefore, there is a problem that a space is required when transporting or storing such a shard sheet cassette. Moreover, since the core accounts for a relatively high proportion of the total cost of the shard sheet cassette, it is required to return only the core to the manufacturer for reuse after the shard sheet is exhausted. The cost was high and it was not economically feasible.

The present invention has been made in view of the above circumstances, and in the shard sheet cassette having the above-mentioned tube core, a shard sheet cassette which requires less space during transportation and storage and enables reuse of the tube core. The purpose is to provide.

[0009]

In order to achieve the above-mentioned object, the present invention provides a cylindrical cylinder shard sheet made of cardboard or flexible plastic, which is made of a soft plastic cylindrical shard sheet folded in an axially stretchable bellows shape. A shard sheet cassette arranged on the outer peripheral surface of a core, wherein one end of the shard sheet is reversed from the upper opening of the cylinder core to the hollow portion while the shard sheet is extended, and is pulled out from the lower opening. After containing the object to be packaged in a shard sheet formed in the shape of a bottomed bag, the shard sheet on the upper part of the object to be packaged is bound to seal the object to be packaged, and the binding part is cut off to seal the object to be packaged. In a shard sheet cassette used for manufacturing a packaging bag, the cylinder core is formed into a flatly deformable cylindrical shape in which a plurality of arcuate members are connected to each other so as to be bendable. To provide a folding shard sheet cassette and wherein the door.

[0010]

The shard sheet cassette of the present invention comprises a cylindrical shard sheet folded in the form of a bellows which can be expanded and contracted in the axial direction and arranged on the outer peripheral surface of a cylindrical core made of cardboard or flexible plastic. While extending the shard sheet, one end of the shard sheet is reversed from the upper opening of the cylinder core to the hollow portion, passed through, and pulled out from the lower opening to accommodate the object to be packaged in the bottomed bag-shaped shard sheet. After that, the shard sheet on the upper part of the packaged object is bound to seal the packaged object, and the binding part is cut off to be used for producing a sealed packaging bag of the packaged object. To
By connecting multiple arc-shaped members so that they can be bent,
Since it can be flatly deformed, it can be crushed into a flat shape during transportation and storage, and can be returned to a cylindrical shape during use.

Therefore, since the volume is small at the time of transportation and storage, the transportation cost and the storage cost can be reduced, and it is possible to return only the used cylinder core to the maker from the viewpoint of cost, and moreover, the conventional cylindrical core. Compared with the case where the cylinder core was forcibly crushed and transported, the number of times of repeated use is greatly increased, and further cost reduction and resource saving can be realized.

[0012]

Embodiments of the shard sheet cassette of the present invention will be described below with reference to the drawings.

The shard sheet cassette 1 shown in FIG.
Is a cylinder type core 2 made of cardboard or flexible plastic,
The two semi-circular members 3 and 3 having cross-sections are formed into a flat deformable cylindrical shape by being foldably connected to each other by connecting members 4 and 4 made of cloth adhesive tape. A cylindrical shard sheet 5 folded in a bellows shape that can expand and contract in the axial direction is arranged on the outer peripheral surface of the cylindrical core 2.

When carrying and storing the shard sheet cassette 1, the semi-circular members 3, 3 are indicated by the arrows in FIG.
Is pressed so as to be compressed and deformed into a flat shape as shown in FIG. By making it flat like this, the whole volume becomes 1/4 to 1/5 as compared with the case of the cylindrical type,
Transport costs and storage costs can be reduced accordingly.

When the shard sheet cassette 1 is used in the automatic wrapping apparatus F, the cloth adhesive tapes 4 and 4 are pressed so as to be compressed as shown by arrows in FIG. , Insert into the tubular guide member J of the automatic packaging device and set. Then, it is used as described above to seal the material L.

After the shard sheet 5 of the shard sheet cassette 1 has been used up, the tube core 2 is removed from the automatic packaging device F, and the cylindrical tube core 2 is compressed again to be deformed into a flat shape for reuse by the manufacturer. So you can send it back. In this case, the volume can be compressed to about 1/10 to 1/15 as compared with the case where the cylinder core is transported as it is,
Very good transportation efficiency. Moreover, since the cloth adhesive tape is folded, it can be repeatedly folded and can be replaced when the cloth adhesive tapes 4 and 4 are consumed.
Also in this respect, cost reduction can be achieved.

On the other hand, in the shard sheet cassette 1 shown in FIG. 3, the cylinder core 2 is equally divided into four in the axial direction into four arc-shaped members 3, 3, 3 and 3 in cross section. 3,
The connecting members 4, 4, which are hinges on both sides of 3, 3,
It is connected so as to be bendable at 4 and 4. In this case, the volume can be reduced by crushing during transportation and storage as shown in FIG. 4, and it can be easily returned to a cylindrical shape during use.

The shard sheet cassette of the present invention is not limited to the above-mentioned embodiment, and the connecting member may be any one as long as it can connect the arcuate members in a bendable manner. The number is not limited to two and four, and may be variously changed without departing from the scope of the invention.

[0019]

Since the shard sheet cassette of the present invention is foldable, the space for transportation and storage can be reduced, the cylinder core can be reused, and the running cost is low.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a shard sheet cassette of the present invention.

FIG. 2 is a perspective view showing a state in which the shard sheet cassette of the same example is flattened by being crushed.

FIG. 3 is a perspective view showing another embodiment of the shard sheet cassette of the present invention.

FIG. 4 is a perspective view showing a state in which the shard sheet cassette of the same example is crushed to be flat.

FIG. 5 is a perspective view showing a conventional shard sheet cassette.

FIG. 6 is a cross-sectional view showing a state in which a shard sheet cassette is set in an automatic packaging machine.

FIG. 7 is a cross-sectional view showing a state in which a raw material is hermetically packaged using a shard sheet of a shard sheet cassette in an automatic packaging machine.

[Explanation of symbols]

 1 shard sheet cassette 2 cylinder core 3 arcuate member 4 connecting member 5 shard sheet A shard sheet cassette B cylinder core C shard sheet D fixed E binding unit F automatic packaging machine J tubular guide member L, L'raw material N sealed packaging bag

Claims (1)

[Claims] 1. A shard sheet cassette in which a soft plastic tubular shard sheet folded in an accordion shape that can expand and contract in the axial direction is arranged on the outer peripheral surface of a cylindrical tubular core made of cardboard or flexible plastic. Then, one end of the shard sheet is inverted and passed through the hollow core from the upper opening of the cylinder core while the shard sheet is extended, and the shard sheet is drawn out from the lower opening and formed into a bag with a bottom to be packaged. After accommodating, while binding the shard sheet on the upper part of the packaged object to seal the packaged object, in the shard sheet cassette used to manufacture the sealed packaging bag of the packaged object by separating the binding part, A folding shard sheet cassette, wherein the cylinder core is formed into a flat deformable cylindrical shape in which a plurality of arc-shaped members are connected to each other so as to be bendable.