JPH06293361A - Method and apparatus for manufacture of cushioning material for packing - Google Patents

Abstract

PURPOSE:To obtain a cushioning material for packing that can be molded easily in a specified shape with a simple metal mold from a pulp-molding product made of waste paper, and is highly workable in packing. CONSTITUTION:After a pulp-molding product, equipped with cap-like parts 7 approximately in conical or pyramidal shape, made of waste paper or the like is held with the underside of the cap-like parts 7 placed on a lower die 2, an upper die 1, equipped with a cutter edge 3 for cutting the pulp-molding product into specified shapes, press and crushing protuberances 5 for forming article-housing dents for housing the articles, a cutter edge 4 in a length slightly shorter than the cutter edge 3 that cuts tops 71 of the cap-like parts 7 down to places near the inner bottom faces of the pressed and crushed parts and elastic pressing parts 6 that touch elastically over the tops 71 the cap-like parts 7, is moved downward and the tops 71 of the cap-like parts 7 are cruched therewith.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a pulp mold formed from waste paper such as newspapers, magazines and milk packs to obtain a cushioning material for packing which can be used as a cushioning material for packing. The present invention relates to a manufacturing method and a manufacturing apparatus for the purpose.

[0002]

2. Description of the Related Art Styrofoam or plastic resin is used as a conventional cushioning material for packing. For example, when transporting household electric appliances, perfumes, etc., foamed polystyrene, plastic resin, or the like is molded into a shape corresponding to the product to prevent damage or damage to the product. In addition, recently, a cushioning material for packaging made of pulp mold made of waste paper or the like has been used.

[0003]

However, in the cushioning material for packing using styrofoam, plastic resin, etc., it is necessary to adapt styrofoam, plastic resin, etc. to the shape of the article, so that various kinds of molds can be used. It was necessary, and required manpower and time to set up the mold and manage the mold, and also spent a large amount of money on the mold. Further, in molding styrofoam, plastic resin, etc., the workability is poor because the raw materials are poured and solidified, resulting in a high unit price of the product. Further, styrofoam, plastic resin, and the like have to be treated separately because they are flame-retardant, and extra time has to be spent. Furthermore, when using pulp mold such as waste paper,
For the cap-shaped part outside the standard product of the pulp mold,
There was a problem of poor workability. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a manufacturing method and a manufacturing apparatus that can easily obtain a predetermined shape with a simple mold and have excellent workability.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is made of waste paper or the like formed by continuously forming a plurality of substantially conical or pyramidal cap-shaped portions in a grid pattern. In a cushioning material for packaging using a pulp mold made of, the top part of the cap-shaped part of the pulp mold is crushed, and the top part of the cap-shaped part is pressed along at least one side of the crushed region. Provided is a method of manufacturing a cushioning material for packaging, which forms a recess for storing articles and the like by cutting the crushed portion up to the vicinity of the inner bottom surface. Also, in a packing cushioning material made of a pulp mold made of waste paper or the like, which is formed by continuously forming a plurality of substantially conical or pyramidal cap-shaped parts in a grid pattern, the cap-shaped part of the pulp mold is It has a lower mold that supports the lower surface side and an upper mold that presses the top surface side of the upper part of the cap, the upper mold having a blade that cuts the pulp mold into a predetermined shape, and a cap-shaped portion of the pulp mold. A crushing protrusion that crushes a part of the top surface side to form a recess for storing articles and the like, and is provided on at least one side of the protrusion, and when crushing the top of the cap-shaped portion by the protrusion, A blade for cutting the top of the cap-shaped portion up to the vicinity of the inner bottom surface of the crushing portion along one side of the crushing region; and an elastic pressing portion elastically contacting the top of the cap-shaped portion around the storage recess. The cushioning material manufacturing equipment Subjected to.

[0005]

In the method and apparatus for manufacturing the cushioning material A for packaging of the present invention, the pulp mold B made of waste paper or the like having the cap-shaped portion 7 having a substantially conical shape or the pyramid shape is placed on the lower surface side of the cap-shaped portion 7. After being supported on the mold 2, a blade 3 for cutting it into a predetermined shape, a crushing projection 5 forming a storage recess 9 for storing an article C and the like, and a crushing portion for the top 71 of the cap-shaped portion 7 are crushed. The upper mold 1 including the blade 4 that is slightly shorter than the blade 3 that cuts to the vicinity of the inner bottom surface 10 and the elastic pressing portion 6 that elastically contacts the top portion 71 of the cap-shaped portion 7 is moved downward to move the cap-shaped portion 7 After crushing the top portion 71, the upper mold 1 is moved upward again to take out the packing cushioning material A.

[0006]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The embodiment of the present invention shown in FIGS. 1 to 5 will be described. FIG. 1 is a cross-sectional view of an essential part showing a state before crushing using the present device, in which the lower surface side of the cap-shaped part 7 of the pulp mold B is shown. It is supported by the lower mold 2. FIG. 2 is a cross-sectional view of essential parts showing a state in which the upper mold 1 is moved downward from the state of FIG. 1 and a top portion 71 of a part of the cap-shaped portion 7 of the pulp mold B is crushed. 3 is a perspective view showing a state in which an article C is stored between a pair of cushioning materials A for packing obtained by the manufacturing method and the manufacturing apparatus of the present invention, and FIG. 4 is a combination of the states shown in FIG. It is a principal part sectional view at the time of standing. FIG. 5 is a perspective view of another embodiment when the article C is placed on the packing cushioning material A and then stored in the box body D. This apparatus first supports the lower surface side of the cap-shaped portion 7 of the pulp mold B on the lower mold 2 made of medium-pressure polyethylene or the like, and then presses the top surface side of the cap-shaped portion 7 of the pulp mold B. The upper die 1 is moved downward from above. A veneer plate or the like is suitable for press-fitting the blades 3 and 4 into the upper mold 1. The upper mold 1 has a blade 3 for cutting the pulp mold B into a predetermined shape, and a blade 4 slightly shorter than the blade 3 for cutting the top 71 of the cap-shaped portion 7 to the vicinity of the inner bottom surface 10 of the crushing portion. The crushing protrusion 5 that is provided and that crushes a part of the top surface side of the cap-shaped portion 7 of the pulp mold B to form a recess 9 for storing the article C and the like, and the recess 9 for storing An elastic pressing portion 6 formed of rubber or the like is provided for elastically contacting the top portion 71 of the surrounding cap-shaped portion 7. The crushing protrusion 5 is preferably made of wood or the like so that it can immediately cope with various shapes of the article C. Storage recess 9 for cushioning material A for packing formed as described above
The article C is stored in. When storing a high-height article or the like, if a cut piece having the same shape as the packing cushioning material A is fitted into the cap-shaped portion 7 around the storage recess 9 of the packing cushioning material A, Recessed portion 9 for storing a tall article C
Is easily obtained. As described above, if the article C is stored in the storage recess 9 of the formed article C and then fixed with a string or tape (not shown), it becomes stronger.
Alternatively, after the article C is stored, it may be inserted into an exterior body such as the box D.

[0007]

As is apparent from the above description, the present invention has the following practically excellent effects. (1) The upper mold is provided with a blade that cuts into a predetermined shape, a blade that cuts the top of the cap-shaped portion up to near the inner bottom surface of the crushing portion, and a crushing protrusion that forms a recess for storage. Therefore, it is possible to easily form a recess for storage even in a non-standard cap-shaped portion of the pulp mold,
It is very convenient because it can be automatically cut, and the storage recess and the predetermined shape can be obtained at the same time in one step. (2) Since the top part of the cap-shaped part of the pulp mold made of waste paper is crushed and formed, the recess for storing a wide variety of articles can be easily formed. Moreover, since the material is waste paper, it is lightweight, has a good cushioning effect, and is inexpensive. (3) Since the upper mold that presses the top surface side of the cap-shaped part of the pulp mold has the elastic pressing part, the mold separation is good, the work efficiency can be improved, and the product is damaged. Nor.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an essential part showing a state before crushing using the present device.

FIG. 2 is a cross-sectional view of essential parts showing a state where the upper die has been moved downward from the state of FIG.

FIG. 3 is a perspective view showing a state in which an article is housed between a pair of packing cushioning materials obtained by the manufacturing method and the manufacturing apparatus of the present invention.

FIG. 4 is a cross-sectional view of essential parts when the states shown in FIG. 3 are combined.

FIG. 5 is a perspective view of another embodiment for storing an article.

[Explanation of symbols]

 A ... ・ Cushioning material for packing B ・ ・ ・ ・ ・ ・ Pulp mold C ・ ・ ・ ・ Article D ・ ・ ・ ・ Box 1 ・ ・ ・ ・ Upper mold 2 ・ ・ ・ ・ ・ ・ Lower mold 3 ・ ・ ・ ・ ・ ・ Blade 4 ･ ･ ･ Blade 5 ･ ･ ･ Crushing protrusion 6 ･ ･ ･ Elastic pressing part 7 ･ ･ ･ Cap-shaped part 71 ･ ･ ･ Top part 8 ･ ･ ･ Crushing part 9 ･ ･ ･ Storage Recesses 10 ... Inner bottom surface

Claims (2)

[Claims] 1. A method for producing a cushioning material for packing, which comprises a pulp mold made of waste paper or the like formed by continuously forming a plurality of substantially conical or pyramidal cap-shaped portions in a grid pattern, wherein the pulp is Storage of articles etc. by crushing the top of the cap-shaped part of the mold and cutting the top of the cap-shaped part up to the vicinity of the inner bottom surface of the crushed part along at least one side of the crushed region. A method of manufacturing a cushioning material for packaging, which comprises forming a recess for use. 2. A manufacturing apparatus for a cushioning material for packaging, which is made of a pulp mold made of waste paper or the like, in which a plurality of substantially conical or pyramidal cap-shaped portions are continuously formed in a grid pattern, A lower die for supporting the lower surface side of the cap-shaped portion of the mold, and an upper die for pressing the top surface side of the cap-shaped portion, the upper die, a blade for cutting the pulp mold into a predetermined shape, A crushing protrusion that crushes a part of the top surface side of the cap-shaped portion of the pulp mold to form a recess for storing articles and the like, and a cap-shaped portion that is provided on at least one side of the protrusion and is formed by the protrusion. At the time of crushing the top of the crushed portion, a blade that cuts the top of the cap-shaped portion up to the vicinity of the inner bottom surface of the crushed portion along one side of the crushed area is elastically contacted with the top of the cap-shaped portion around the storage recess. Specially equipped with elastic retainer Equipment for manufacturing cushioning material for packaging.