JPH0815979B2 - Laminated flat aluminum foil for forming aluminum foil containers - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated flat aluminum foil for forming an aluminum foil container for containing various foods.

[0002]

2. Description of the Related Art Conventionally, in order to manufacture an aluminum foil container of this type, a large number of stacked rectangular large-sized aluminum foils are manufactured, and then, a unit number, for example, a unit of 20 sheets of classified paper such as newspaper. After punching multiple places of this laminated large-sized aluminum foil into a circular small-sized aluminum foil container forming laminated small-sized aluminum foil, take out the unit number of laminated small-sized aluminum foil using the above classification paper as a guide. A large number of aluminum foil containers are manufactured at one time by inserting a foil between male and female molds and press-molding.

[0003]

When manufacturing such an aluminum foil container, the large-sized aluminum foil is usually manufactured with
It is packed as 0 laminated large-format aluminum foil, and the worker counts the number of the laminated large-format aluminum foil and inserts the sorting paper for each unit before manufacturing the aluminum container. In addition, there is a problem in that counting errors occur.

Further, after punching the laminated large-sized aluminum foil into a circular small-sized laminated small-sized aluminum foil for forming an aluminum foil container,
Even when this is divided into units of the number of sheets during the production of aluminum foil containers and molded into aluminum foil containers of a specified shape with male and female dies, it is not possible to easily separate from the sorting paper inserted for each number of units. However, there are cases where the work is troublesome and cannot be counted accurately. The present invention provides a laminated flat aluminum foil for forming an aluminum foil container for the purpose of solving the above problems.

[0005]

In order to achieve the above object, the laminated flat aluminum foil for forming an aluminum foil container of the present invention is a laminated flat aluminum for an aluminum container formed by laminating a plurality of flat aluminum foils. In the foil, the separation thin paper whose both sides are formed into smooth surfaces for each unit number of the plain aluminum foil and the smooth surface side is brought into close contact with the plain aluminum foil surface and the rough surface side is brought into close contact with the separation thin paper surface. It has a structure in which a paper and a paper are interposed in a polymerized state. In this case, it is preferable that at least one of the interleaving paper and the separating thin paper is colored paper, and a plain intervening paper may be interposed between the plain aluminum foils.

[0006]

[Function] When manufacturing the aluminum foil container, when the laminated flat aluminum foils are displaced in the plane direction, the smooth surfaces of the separating thin paper and the interleaving paper interposed between the aluminum foils corresponding to the unit number of aluminum foils correspond to each other. Maintains a close contact with the foil surface,
Since the separation thin paper and the interleaving paper are in contact with each other by the smooth surface and the rough surface, the smooth surface of the separation thin paper is not only reduced by the friction coefficient between them but also the air enclosed in the minute space existing between them. The two easily separate while sliding on the rough surface of the interleaving paper.

Therefore, the laminated flat aluminum foil is displaced by the unit of the number of sheets through the separation thin paper and the slip sheet, and the facing surface of the separation thin paper and the slip sheet is exposed to the outside. One or several sets of laminated flat aluminum foils can be easily taken out, and can be efficiently used for forming aluminum foil containers one after another. Furthermore, the number of thin sheets or slip sheets for separation can be known at a glance, and the desired number of flat aluminum foil sheets can be easily confirmed.

By coloring the interleaving paper or the thin paper for separation, the unit number of aluminum foils can be accurately confirmed at a glance, and a plain intervening paper is interposed between the plain aluminum foils. It is possible to mold an aluminum foil container in which the interposition paper is lined inside.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, referring to the drawings, an embodiment of the present invention will be described. In FIG. 1 and FIG. 2, A is several hundreds of flat aluminum foils 1 having a thickness of 10 to 40 .mu. 500
A laminated flat aluminum foil for forming an aluminum foil container formed by laminating a plurality of sheets, and its planar shape is formed into an appropriate shape such as a circular shape, an oval shape or the like which is the developed shape of the aluminum foil container B shown in FIG. Further, the thin separation paper 2 and the interleaf 3 having the same size and shape as the flat aluminum foil 1 are superposed for each unit number a such as 5 or 10 of the flat aluminum foil 1 or 20 sheets. It has been intervened. It should be noted that the interleaf sheet 3 or the separation thin paper 2
It is preferable to use colored paper colored red or blue for easy identification from the outside of the plain aluminum foil 1. In addition, it is desirable to coat the flat aluminum foil 1 with a silicon coat.

As the thin paper 2 for separation, thin paper having smooth front and back surfaces 2a and 2b such as glassine paper (30.5 g / m ² ) is used, and these smooth surfaces 2a and 2b are respectively used. The flat aluminum foil 1 and the interleaf paper 3 are in close contact with each other, while the interleaf paper 3 is a thin paper or synthetic paper, and the surface side in contact with the flat aluminum foil 1 is a smooth surface 3a. A thin paper is used which has a rough surface 3b having a fine concavo-convex surface as a superposed surface with the separation thin paper 2. As the separation thin paper 2 and the interleaf paper 3, non-breathable ones are used.

With this structure, the flat-format aluminum foil 1
The thin thin paper 2 and the interleaving paper 3, which are interposed for each unit number a, are made to have their smooth surfaces 2a and 3a in close contact with the facing flat aluminum foil 1 having the same smooth surface. Therefore, the friction coefficient of each contact surface is large, while the other smooth surface 2b of the separating thin paper 2 is in close contact with the rough surface 3b of the interleaf 3 so that the contact area between them is small and The coefficient of friction is reduced by the air in the minute voids formed between the two.

Therefore, the laminated flat aluminum foil A shown in FIG.
As shown in FIG. 2, for example, when the upper surface of the laminated flat aluminum foil A is laterally displaced while being pressed by hand, the flat aluminum foils 1 and 1 and the flat aluminum foil 1 in contact with the separation thin paper 2 are formed. Keeps a close contact with each other, but the close contact surfaces of the thin separation paper 2 and the interleaf 3 having a small friction coefficient slide and separate from each other. Therefore, the plain aluminum foils 1 are sequentially shifted stepwise for each unit number a through the separating thin paper 2 and the interleaving paper 3, and one or several sets of the plain aluminum foils 1 are easily taken out. Is something that can be done. The unit number of aluminum foils 1 thus taken out is inserted between the male and female molds in a polymerized state to form a plurality of aluminum foil containers B having a desired shape according to the number of aluminum foils 1 as shown in FIG. To do.

4 and 5 are rectangular (size is 546 × 788 m)
m) shows a large-sized laminated flat-sized aluminum foil A ', which is obtained by punching a large number of the above-mentioned laminated flat-sized aluminum foil A from this large-sized laminated flat-shaped aluminum foil A',
In the present invention, such a large-sized laminated flat aluminum foil A ′ may be used.

That is, in a laminated flat aluminum foil A'which is formed by laminating a large number of large-sized aluminum foils 11, for example, 500, for each unit number a'of 20 or the like, A separation thin paper 12 having the same size and the same shape and smooth on both sides and a slip sheet 13 formed on the uneven rough surface 13b on one side in the same manner as the slip sheet 3 are interleaved in a superposed state. The above-mentioned laminated flat aluminum foil A is formed by punching out a plurality of flat plain aluminum foils A'by punches or the like as shown in FIG. 6, and interposing a separation thin paper 2 and a slip sheet 3 in a superposed state for each unit number a. Is what you get.

Also in this case, as in the case of the small-sized flat laminated aluminum foil A, when the large-sized flat laminated aluminum foil A'is laterally displaced, the smooth surface and the rough surface are joined. The separation thin paper 12 and the interleaving paper 13, which have a small frictional force, can slide in the lateral direction with respect to each other and can be separated for each unit number of sheets.

In the above embodiment, the separation thin papers 2 and 12 were directly brought into close contact with the plain aluminum foils 1 and 11. However, a thin paper whose front and back surfaces are smooth is interposed between them. You may leave it. In this case, the thin paper can prevent the flat aluminum foil 1 from being damaged when the aluminum foil container is molded. Further, in the above-described embodiment, in the flat aluminum foil 1 of the unit number a, the flat aluminum foils 112 without the separation thin paper 2 and the interleaf 3 are in direct contact with each other. As described above, a plain intervening paper 4 having a smooth front and back surface, which is made of thin paper whose front and back surfaces are appropriately smooth surfaces, may be interposed between the flat aluminum foils 1 and 1. In this case, the interposer paper 4 is also interposed between the flat aluminum foil 1 and the separation thin paper 2.

In the laminated flat-sized aluminum foil A thus constructed, the flat-shaped aluminum foil 1 is protected by the interposer paper 4 to prevent damage and to have a proper cushioning property. When the aluminum foil container B is formed, it is possible to obtain an aluminum foil container in which the interposing paper 4 is lined on the inner surface of each container.

FIG. 8 shows a method for manufacturing the large-sized laminated flat aluminum foil described above. A plurality of upper delivery rolls 16 and lower delivery rolls 17 are arranged at predetermined intervals in the front-rear direction. Separation thin paper for each 5 sheets of plain aluminum foil 21
22 and the interleaving paper 23 are interposed, and the flat aluminum foils 21, 21
When interposing the interposer paper 24 between them, the long strip-shaped aluminum foil 21 and the strip-shaped interposer paper 24 each having a constant width are wound around the five upper and lower delivery rolls 16 and 17 in a roll shape. , The sixth upper and lower delivery rolls 16 ', 17' are wound with a long strip-shaped separating thin paper 22 and a long strip-shaped interleaving paper 23 with a smooth surface facing upward, respectively. A pair of upper and lower feed rolls 18 and 19 are disposed in front of and in front of the frontmost delivery roll 16, and further, a laminated flat aluminum foil storage box 30 is disposed in front of the feed rolls 18 and 19 via a shearing cutter 20. ing.

In order to manufacture a laminated flat-format aluminum foil with the apparatus thus constructed, a pair of upper and lower feed rolls is used.
When 18 and 19 are driven to rotate, the belt-shaped interposing paper 24 is interposed between the belt-shaped aluminum foils 21 fed from the five feeding rolls 16, and the belt-shaped separating thin paper 22 is placed on the uppermost belt-shaped interposing paper 24. The strip-shaped interleaving paper 23 is sequentially forwarded while being laminated, and after passing between the feed rolls 18 and 19, the shear cutter 20 shears the foil at a constant length to form a unit number of flat aluminum foils.
The separation thin paper 22 and the interleaving paper 23 are interposed between the two 21,
These are sequentially stored in the storage box 30 in a superposed state.

Further, in this manufacturing process, without using the shearing cutter 20, if the strip-shaped laminated flat aluminum foil is directly punched into a circular shape or the like from above by a plurality of punching tools, the above-mentioned laminated flat foil is cut. Aluminum A can be obtained. Further, as another manufacturing method, without using the shearing cutter 20 in the above manufacturing process, once in a laminated state, it is wound into a roll shape and cut to obtain a large-sized laminated flat aluminum foil A ′. You can also

[0021]

As described above, according to the laminated flat aluminum foil for forming an aluminum foil container of the present invention, a large number of flat aluminum foils,
In laminated flat-format aluminum foil for aluminum containers that are laminated,
A separation thin paper whose both sides are formed into smooth surfaces for each unit number of flat-format aluminum foil and a slip sheet in which the smooth surface side is in close contact with the plain aluminum foil surface and the rough surface side is in close contact with the separation thin-paper surface. Since the laminated flat aluminum foils are displaced in the planar direction, the smooth surface of the separating thin paper and the rough surface of the interleaving paper are displaced in the surface direction while sliding relative to each other. It is possible to surely separate the standard aluminum foils for each unit number of sheets, and it is possible to efficiently take out a desired number of the standard aluminum foils from a large number of laminated flat aluminum foils.

Therefore, it is possible to sequentially and easily take out the unit number of plain aluminum foil laminates necessary for forming into an aluminum foil container without the need to count the number of plain aluminum foils as in the conventional case. Therefore, the aluminum foil container can be efficiently manufactured.

[Brief description of drawings]

FIG. 1 is a simplified perspective view of a laminated flat-format aluminum foil for forming an aluminum foil,

FIG. 2 is a partially enlarged vertical side view of the same,

FIG. 3 is a simplified vertical sectional view of a molded laminated aluminum foil container,

FIG. 4 is a simplified perspective view of a large-sized laminated flat-format aluminum foil,

FIG. 5 is an enlarged sectional view of a part thereof,

FIG. 6 is a plan view for punching and forming,

FIG. 7 is an enlarged vertical sectional view showing another embodiment of the present invention,

FIG. 8 is a simplified side view of a laminated flat aluminum foil manufacturing apparatus.

[Explanation of symbols] A Laminated plain aluminum foil 1 Plain aluminum foil 2 Thin paper for separation 3 Interleaf paper

Claims (3)

[Claims] 1. A laminated flat-plane aluminum foil for an aluminum container, which is formed by laminating a large number of flat-plane aluminum foils, and a separation thin paper having smooth surfaces on both sides for each unit number of flat-plane aluminum foils. A laminated flat aluminum foil for forming an aluminum foil container, characterized in that the surface side is a plain aluminum foil surface, and the rough surface side is interleaved with a slip sheet in close contact with the separation thin paper surface in a polymerized state. 2. The laminated flat aluminum foil for forming an aluminum foil container according to claim 1, wherein at least one of the interleaving paper or the separating thin paper is a colored paper. 3. The laminated flat aluminum foil for forming an aluminum foil container according to claim 1, wherein plain paper is interposed between the flat aluminum foils.