JP2008012928A - Manufacturing process of powder detergent carton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powder detergent carton, which is easy to keep a lid body from lifting, and to secure a shutting tendency by spoiling no appearance or strength of the carton. <P>SOLUTION: The present invention is a manufacturing process of a powder detergent carton 10, which has a preliminary folding step for giving the shutting tendency to push a lid body 31 toward a hinge strip 32 in a shutting direction. This preliminary folding step is the step of pressing the lid body 31, pinching by a pressing plate 43 and a flat plate 41, after putting the hinge strip 32 of a sheet of development paper for the lid body 31 on a folding mold 42 prepared projecting from a flat plate 41; wherein the preliminary folding step keeps the pressing plate away from a folding part 33. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for producing a powder detergent paper box suitable for use in a powder detergent.

In the detergent container, a paper box is used for incineration at the time of disposal. As described in Patent Document 1, with a paper box covering the opening of the box with a lid, the locking tongue piece adhered to the outer surface of the opening edge of the box is peeled off and raised, and provided inside the lid A certain locking recess can be locked to the raised tongue piece raised when the lid is closed. Thereby, it is possible to prevent the lid from floating in the opening direction from the closed position and to avoid the moisture absorption and solidification of the detergent.
Patent No.2656903

  In the above prior art, the locking tongue piece adhered to the outer surface of the box is peeled off, and this peeling mark may impair the appearance of the box. Further, since the locking tongue piece is peeled off, the strength of the box and the locking tongue piece is reduced.

  An object of the present invention is to easily manufacture a powder detergent paper box that can easily prevent the lid body from being lifted and can ensure the closing property without impairing the appearance and strength of the paper box.

  According to a first aspect of the present invention, there is provided a powder detergent paper box for assembling a paper box in which an inner surface of a hinge piece connected to a rear plate of a lid main body via a bent portion is attached to the back surface of the box body. A method of closing a lid body through a bent portion to a bent portion by a ruled line formed between a rear plate and a hinge piece of the lid body having a front plate, a rear plate, both side plates, and a top plate. A pre-folding process for bending the cover body to urge the cover body toward the hinge piece in the closing direction, the pre-folding process, the pre-folding process, the spread paper of the cover body, the hinge piece from the flat plate It is a pre-folding step in which the lid body is clamped between the presser plate and the flat plate after being applied to the protruding folding mold, and the pre-folding step is performed by separating the presser plate from the bent portion. Is.

  The powder detergent paper box 10 has a box 20 and a lid 30 as shown in FIG. The box 20 is made by folding a paper or a material made of paper and having a plastic film laminated, and has a front plate 21A, a back plate 21B, both side plates 21C, and a bottom plate 21D. An opening 21E is provided.

  The lid 30 is assembled by bending the same material as that of the box body 20, and includes a front plate 31A, a rear plate 31B, both side plates 31C, and a top plate 31D constituting the lid main body 31. The lid 30 connects the hinge piece 32 to the rear plate 31B via the bent portion 33 so that the opening 21E of the box 20 can be opened and closed in a state where the hinge piece 32 is bonded to the back plate 21B of the box 20. cover. The lid body 31 projects a knob piece 31E at the center of the lower edge of the front plate 31A, and attaches the back surface of the knob piece 31E to the outer surface of the front plate 21A of the box body 20, and in the distribution process of the paper box 10, The opening 21E is sealed.

  The paper box 10 has a closing behavior that urges the lid body 31 in the closing direction with respect to the hinge piece 32 in order to ensure the closing ability of the lid 30 with respect to the box body 20, and the bent portion of the lid body 31 and the hinge piece 32. 33. In the paper box 10, the lid body 31 and the bent portion 33 of the hinge piece 32 are imparted with a closing behavior, so that the bending portion 33 applies a moment M in a direction in which the lid body 31 is fully closed to the opening 21 </ b> E of the box body 20. It is given to the main body 31, and the moment M prevents the lid main body 31 from being lifted from the box body 20 (FIG. 1B). When the lid 33 is not given the closing behavior, the lid body 31 and the opening provided to the bent portion 33 of the hinge piece 32 when the lid 30 is opened (opening behavior) It floats up from 20 (FIG. 1C).

  When the lid body 31 and the bent portion 33 of the hinge piece 32 are given a closing behavior, the attachment angle of the lid body 31 to the upright hinge piece 32 becomes a sharp acute shape as shown in FIG. The main body 31 is greatly lowered forward. When the lid 33 is not provided with a closing habit, the mounting angle of the lid body 31 with respect to the upright hinge piece 32 is substantially a right angle as shown in FIG. There is nothing to do.

  In addition, the paper box 10 affixes the sealing paper that seals the opening 21E of the box 20 to the outer side surface of the entire opening edge of the front plate 21A, the back plate 21B, and the both side plates 21C in the distribution process of the paper box 10. The content powder detergent is sealed.

  FIG. 3 shows the folded state of the lid 30 by the box making machine. The paper box 10 is manufactured by the following procedure.

  (1) The top plate 31D portion of the spread paper of the lid 30 is sucked by the suction tool 40, and sequentially or simultaneously positioned at the long side preliminary folding position and the short side preliminary folding position. At the long side preliminary folding position, the front plate 31A and the rear plate 31B are raised and preliminarily folded with respect to the top plate 31D along a ruled line provided at the boundary between the top plate 31D. At the short side pre-folding position, the side plates 31C are raised and pre-folded with respect to the top plate 31D along a ruled line provided at the boundary with the top plate 31D.

  (2) The developing paper of the lid 30 adsorbed by the adsorbing tool 40 is positioned at the hinge piece preliminary folding position as shown in FIG. The hinge piece 32 is applied to the folding mold 42 provided on the flat plate 41, and both ends of the front plate 31A, the rear plate 31B, and the top plate 31D are clamped between the flat plate 41 by the holding plate 43, so that the hinge piece 32 is Along with the ruled lines such as lead ruled lines and perforated lines provided at the boundary with the rear plate 31B, the rear plate 31B is raised, and the lid closing behavior of the lid body 31 and the hinge piece 32 is given to the bent portion 33 described above. Pre-fold as you do.

  (3) The front plate 31A, rear plate 31B, and both side plates 31C preliminarily folded in the above (1) are raised with respect to the top plate 31D, and the front plate 31A and the rear plate are attached to the glue pieces 34 provided at both ends of the both side plates 31C. The back surfaces of both end portions of 31B are bonded to produce the lid body 31.

  (4) The hinge piece 32 connected to the lid main body 31 is bonded to the rear plate 21B of the box body 20 which has been separately manufactured to obtain the paper box 10.

According to this embodiment, there are the following operations.
(Operation corresponding to claims 1 and 2)
(a) The lid closing behavior of urging the lid body 31 in the closing direction was imparted to the bent portion 33 of the lid body 31 and the hinge piece 32. Therefore, the lid body 31 provided in the box body 20 is energized in the closing direction and covered around the opening 21 </ b> E of the box body 20 without adding a special dedicated lid mechanism, and is lifted from the box body 20. Can be easily prevented. Thereby, the coverability of the paper box 10 is ensured and the moisture absorption solidification of the detergent is prevented. The present invention is particularly suitable for a box for storing contents that are preferably sealed, such as a detergent.

  (b) Since a special dedicated closing mechanism is not added to the paper box 10, the appearance and strength of the paper box 10 are not impaired, and the strength of the box 20 and the lid 30 is not reduced.

FIG. 1 is a schematic diagram showing a paper box and its open / closed state. FIG. 2 is a schematic diagram showing the lid closing behavior of the lid. FIG. 3 is a schematic view showing a lid folding process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Paper box 20 Box body 31 Cover main body 31A Front plate 31B Rear plate 31C Both side plates 31D Top plate 32 Hinge piece 33 Bending part 41 Flat plate 42 Folding type 43 Presser plate

Claims (2)

A method of manufacturing a powder detergent paper box, assembling a paper box in which an inner surface of a hinge piece connected to a rear plate of a lid body via a bent portion is attached to the back of a box,
The lid body is folded to the closing direction side through the folding portion to the folding portion by the ruled line formed between the rear plate and the hinge piece of the lid body having the front plate, the rear plate, both side plates and the top plate, and the lid A pre-folding step for imparting a closing behavior of urging the main body in the closing direction with respect to the hinge piece;
The preliminary folding step is a preliminary folding step in which the spread paper of the lid main body is applied to a folding mold provided with a hinge piece protruding from a flat plate, and then the lid main body is sandwiched between the holding plate and the flat plate. The method for producing a powder detergent paper box, which is a preliminary folding step in which the pressing plate is separated from the bent portion.   2. The method for producing a powder detergent paper box according to claim 1, wherein the ruled line is a lead ruled line or a perforated line.

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