KR20230139209A - Method for manufacturing of packing box - Google Patents

Abstract

The packaging box manufacturing method processes paper cardboard through the lifting and lowering movement of a processing unit consisting of an inner paper cutting blade and a processing blade, forming fold grooves and depressions on the inner paper bottom surface, multiple inner paper side walls, and the boundary between the inner paper bottom surface and the inner paper side wall surface. Inlay processing step of forming the inlay having a groove; An inlay folding step of folding the inlay side wall surface of the inlay and processing the inlay to form a space therein; A cover processing step of processing paper cardboard through the lifting motion of a cover cutting blade to form a cover having a cover bottom surface, a plurality of cover side walls, wing surfaces, and a finishing surface; And the bottom surface of the cover is adhesively fixed to the bottom surface of the inside sheet so that the cover can be glued around the inside sheet that has gone through the inlay folding step, and the side walls of the pair of covers formed with the finished surface are adhesively fixed to the side walls of the inlay sheet. , the finished surface is adhesively fixed to the side wall of the inlay adjacent thereto, the remaining cover side walls excluding the pair of cover side walls on which the finished surface is formed are adhesively fixed to the outer surface of the finished surface, and the wing surface is attached to the side wall of the inlay. It includes a cover adhesion step of adhesively fixing the inner surface, and in the cover processing step, the length of the finished surface is formed to a length such that the ends come into contact with each other in the process of adhesively fixing the finished surface by folding it toward the side wall of the inner paper, The inlay cutting blade in the inlay processing step is made of the same shape structure as the outer surface shape of the inlay in the unfolded state, and the processing blade in the inlay processing step is a semi-knife or sewing machine knife for forming a folding groove in the inlay, and the semi-knife or sewing machine knife. It is provided on both sides and includes pressing protrusions for forming recessed grooves on both sides of the folding groove.

Description

{METHOD FOR MANUFACTURING OF PACKING BOX}

The present invention relates to a method of manufacturing a packaging box, and more specifically, to improve the structure of the packaging box so that the exterior of the packaging box can be processed to be beautiful, as well as to reduce product productivity and product production costs by improving the manufacturing method. This relates to a method of manufacturing a packaging box with an attractive appearance.

In general, packaging boxes are used to transport or store items for a long time, and there are various types depending on the characteristics, shape, and size of the product. This packaging box is a type of carton box, which is a general term for containers made using paper. It refers to a laminated box made by joining the outer paper (cover) that covers the outer surface of the inner paper (cardboard).

These packaging boxes are made in the shape of a packaging box by bending paper cardboard along the fold line and attaching tape to the overlapping portion, or by applying hot melt adhesive, a thermoplastic resin, to adhere it.

When making a packaging box using paper cardboard, it is difficult to always fold the fold line smoothly and consistently, so through Thompson's work, the paper cardboard is placed in the unfolded state of the packaging box, and a cutter is used on the other side of the folded part to reduce the thickness of the paper cardboard. Cut to 2/3 of the depth and press the other side of the cutting knife to form a fold line.

However, when the cardboard is folded to make a packaging box after performing the Thompson operation described above, the half-cut portion, which is the fold line, becomes the outside of the box, so the folded part does not become a right angle, and the cardboard opens at the half-cut portion, forming a box shape. Because of this, the side adjacent to the folded part bulges out due to the resistance to unfold the folded part to its original state, or the folded part becomes angular and cannot be made beautiful, which reduces the completeness of the packaging box.

To solve this problem, Registered Utility Model No. 20-0475200, packaging box with raised corners (registration date: November 6, 2014), has 1/2 to 2 of the total thickness (t) of the cardboard at the fold line of the packaging box. A packaging box forming a V-shaped groove with a depth of /3 is disclosed.

However, the packaging box with the corner angles has the problem of low product productivity and high product production costs because the product is produced through a complex step process.

In other words, a packaging box with angle corners has a top plate, left and right extension plates, front plate, front auxiliary plate, front auxiliary extension plate, rear plate, rear auxiliary plate, and rear auxiliary extension plate, and a groove at the fold line on the paper cardboard for manufacturing the packaging box. This is because in order to form, each cutting process according to the directionality of the X-axis and Y-axis and each folding groove forming process according to the directionality of the X-axis and Y-axis had to be preceded.

In addition, this V-shaped groove can only be applied to hard paper cardboard, and packaging boxes such as cosmetic boxes use corrugated cardboard as a substitute for hard paper cardboard for cost competitiveness. There is a problem in that V-shaped groove processing is not possible because it is not dense.

Registered Utility Model No. 20-0475200, packaging box with angled corners (registration date: November 6, 2014)

The present invention was developed in consideration of the above-described conventional problems, and its purpose is to provide a method of manufacturing a packaging box that allows the production of products with an attractive appearance by improving the structure of the packaging box.

Another object of the present invention is to provide a method for manufacturing packaging boxes that improves product productivity and reduces product production costs by improving the manufacturing method of packaging boxes using soft paper such as cardboard or corrugated cardboard.

As an embodiment, a method of manufacturing a packaging box processes cardboard through the lifting and lowering operation of a processing unit composed of an inner paper cutting blade and a processing blade, thereby processing the inner paper bottom surface, a plurality of inner paper side walls, and the boundary between the inner paper bottom surface and the inner paper side wall surface. Inlay processing step of forming the inlay having a fold groove and a recessed groove; An inlay folding step of folding the inlay side wall surface of the inlay and processing the inlay to form a space therein; A cover processing step of processing paper cardboard through the lifting motion of a cover cutting blade to form a cover having a cover bottom surface, a plurality of cover side walls, wing surfaces, and a finishing surface; And the bottom surface of the cover is adhesively fixed to the bottom surface of the inside sheet so that the cover can be glued around the inside sheet that has gone through the inlay folding step, and the side walls of the pair of covers formed with the finished surface are adhesively fixed to the side walls of the inlay sheet. , the finished surface is adhesively fixed to the side wall of the inlay adjacent thereto, the remaining cover side walls excluding the pair of cover side walls on which the finished surface is formed are adhesively fixed to the outer surface of the finished surface, and the wing surface is attached to the side wall of the inlay. It includes a cover adhesion step of adhesively fixing the inner surface, and in the cover processing step, the length of the finished surface is formed to a length such that the ends come into contact with each other in the process of adhesively fixing the finished surface by folding it toward the side wall of the inner paper, The inlay cutting blade in the inlay processing step is made of the same shape structure as the outer surface shape of the inlay in the unfolded state, and the processing blade in the inlay processing step is a semi-knife or sewing machine knife for forming a folding groove in the inlay, and the semi-knife or sewing machine knife. It is provided on both sides and includes pressing protrusions for forming recessed grooves on both sides of the folding groove.

The packaging box according to the present invention has the effect of improving product productivity and reducing product production costs by enabling simultaneous molding of the inner material using paper cardboard and processing of the folded portion of the inner material.

In addition, by improving the structure of the folding part of the packaging box according to the present invention, the edges of the packaging box are smoothed, which has the effect of improving the appearance.

In addition, it has the effect of making a V-shaped groove even on soft paper such as cardboard or corrugated cardboard.

In addition, the finished surface of the cover of the packaging box has a length that allows the ends to contact each other in the middle of the side wall of the inner paper during the process of folding it to the side wall of the inner paper, which has the effect of making the appearance of the cover beautiful. .

1 is a partial cross-sectional view showing a packaging box with an attractive appearance according to a preferred embodiment of the present invention.
Figure 2 is a plan view showing the inner material of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.
Figure 3 is a partial cross-sectional view showing the inner material of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.
Figure 4 is a perspective view showing a processing unit in a packaging box with an attractive appearance according to a preferred embodiment of the present invention.
Figure 5 is a main sectional view showing the operating state of a processing unit in a packaging box with an attractive appearance according to a preferred embodiment of the present invention.
Figure 6 is a plan view showing the cover of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.
Figure 7 is a partial cross-sectional view showing the operating state of the cover cutting blade of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.
Figure 8 is a diagram showing the manufacturing process of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.

The present invention described below can be modified in various ways and can have various embodiments. Specific embodiments will be illustrated in the drawings and described in detail in the detailed description.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a detailed description of related known technologies may obscure the gist of the present invention, the detailed description will be omitted.

The terms used in this application are only used to describe specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Additionally, terms such as first and second may be used to separately describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

In addition, when at least two different embodiments are described in the present application, all or part of the components of each embodiment can be merged and used interchangeably without departing from the technical spirit of the present invention. .

1 is a partial cross-sectional view showing a packaging box with an attractive appearance according to a preferred embodiment of the present invention.

Referring to Figure 1, the packaging box 100 according to a preferred embodiment of the present invention includes an inner paper 110 that serves as a basic frame, and a cover 130 for finishing the outer surface of the inner paper 110. It is composed by:

Figure 2 is a plan view showing the inside of a packaging box with an attractive appearance according to a preferred embodiment of the present invention, and Figure 3 is a main sectional view showing the inside of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.

Referring to Figures 2 and 3, the inlay 110 is formed by processing a plate-shaped cardboard. At this time, the inlay 110 has an inlay bottom surface 111 formed in the center, a plurality of inlay side walls 113 are formed extending to the adjacent outer surface of the inlay bottom surface 111, and the inlay bottom surface ( A folding groove 115 is formed at the boundary between 111 and the inner paper side wall surface 113, and recessed grooves 117 are provided on both sides of the folding groove 115.

Here, the paperboard can be any material that can make a packaging box, such as corrugated cardboard, white cardboard, and manila cardboard. In particular, it can be applied to soft paper and cardboard.

Figure 4 is a perspective view showing the processing unit among the packaging boxes with an attractive appearance according to a preferred embodiment of the present invention, and Figure 5 shows the operating state of the processing unit among the packaging boxes with an attractive appearance according to a preferred embodiment of the present invention. This is a cross-sectional view of the main part.

Referring to Figures 4 and 5, the processing unit 120 is composed of an inner paper cutting blade 121 and a processing blade 123.

The inlay cutting blade 121 has the same shape structure as the outer surface shape of the inlay 110 in the unfolded state, and processes the paper cardboard through a lifting operation to form the inlay 110.

In addition, the processing blade 123 can form a cutting knife or sewing machine knife 125 for forming a folding groove 115 in the inlay 110 and a recessed groove 117 on both sides of the folding groove 115. It consists of pressing protrusions 127 provided on both sides of the turning knife or sewing knife 125.

Here, if the half-knife or sewing machine knife 125 is a half-knife, it is configured to have a length sufficient to form a predetermined depth without cutting the inner paper 110 during the formation of the folding groove 115, and if it is a sewing machine knife, The inlay 110 is cut so that cut portions and non-cut portions are periodically formed at regular intervals. (Reference numeral '125' in Figure 5 refers to the case of a half-knife.)

The processing unit 120 processes the cardboard through a lifting operation to form the inner paper 110 in the unfolded state and the folding groove 115 and the depressed groove 117 therein, which are formed in a single process. can do.

Figure 6 is a plan view showing the cover of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.

Referring to FIG. 6, the cover 130 is formed by processing plate-shaped cardboard. At this time, the cover 130 has a cover bottom surface 131 corresponding to the inner sheet bottom surface 111 formed in the center, and a plurality of cover side walls 133 are formed on the outer surface of the cover bottom surface 131. It is extended, and a wing surface 138 is formed at the end of each sign side wall surface 133, and is finished on both sides of any pair of sign side wall surfaces 133 that are symmetrical to each other among the sign side wall surfaces 133. A face 136 is formed.

The finished surface 136 has a length that allows the ends to contact each other in the middle of the inlay side wall surface 113 during the process of folding the inlay 110 toward the inlay side wall surface 113. That is, if the length of the inlay side wall 113 is 'a', the length of the finished surface 136 is preferably set to 'a/2'.

Figure 7 is a partial cross-sectional view showing the operating state of the cover cutting blade of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.

Referring to FIG. 7, the cover cutting blade 140 processes the cardboard through a lifting operation to cut the cover bottom surface 131, a plurality of cover side walls 133, the finishing surface 136, and the wing surface 138. The cover 130 in the deployed state is formed.

Accordingly, the packaging box with an attractive appearance according to a preferred embodiment of the present invention forms fold grooves and depression grooves at the same time at the folding area where the folding process takes place, so that the corners of the packaging box can be smoothed during the folding process. The external exposure of the overlapping part of the cover is minimized to make the packaging box look beautiful, and the manufacturing method of the packaging box with an attractive appearance will be described in detail with reference to the drawings.

Figure 8 is a diagram showing the manufacturing process of a packaging box with an attractive appearance according to a preferred embodiment of the present invention.

Referring to FIG. 8, the method of manufacturing a packaging box 100 with an attractive appearance according to a preferred embodiment of the present invention includes an inner paper processing step, an adhesive application step, an inner paper folding step, a cover processing step, and a cover adhesion step.

Looking at the inlay processing step with reference to (a) of Figure 8, the paper cardboard is processed through the lifting operation of the processing unit 120 to form the inlay bottom surface 111, a plurality of inlay side walls 113, and the inlay bottom surface. The inlay 110 is formed with a folding groove 115 and a depressed groove 117 at the boundary between 111 and the inlay side wall surface 113.

Here, the processing unit 120 is composed of an inlay cutting blade 121 and a processing blade 123, and the inlay cutting blade 121 has the same shape structure as the outer surface shape of the inlay 110 in the unfolded state. The inner paper 110 in the unfolded state is formed from paperboard, and the processing blade 123 is composed of a half-knife or sewing machine knife 125 and a pressing protrusion 127 formed on both sides of the half-knife or sewing machine knife 125. A folding groove 115 and a depressed groove 117 are formed in the inlay 110.

The processing unit 120 simultaneously performs the work of forming the inlay 110 and forming the folding groove 115 and the recessed groove 117 through lifting and lowering movements.

Looking at the inlay folding step with reference to (b) of FIG. 8, the inlay side wall surface 113 of the inlay 110 is folded to have a space 119 therein. The inlay side walls 113 can be fixed to each other with tape as shown in the drawing, or the inlay side walls 113 can be fixed to each other in the area where the inlay side walls 113 come into contact during the folding process so that the inlay side walls 113 form a firm connection relationship. Adhesive may be applied.

Looking at the cover processing step with reference to (c) of FIG. 8, the cover Thompson process is performed, in which the cover 130 is formed from cardboard through a lifting operation using the cover cutting blade 140. At this time, the sign 130 has a plurality of sign side walls 133 extending from the outer surface of the sign bottom surface 131, and a wing surface 138 is formed extending at the end of each sign side wall 133. , a finishing surface 136 is formed on both sides of a pair of label side walls 133 that are symmetrical to each other among the label side wall surfaces 133, and the length of the finishing surface 136 is the finishing surface 136. In the process of folding and adhesive fixing the inner paper side wall 113, the ends are formed to a length that touches each other. Accordingly, in the process of adhesively fixing the cover 130 to the inner paper 110, external exposure to overlapping portions of each component of the cover 130 is minimized to improve the appearance of the packaging box.

Thereafter, looking at the cover adhesion step with reference to Figures 8 (d) to 8 (h), the cover bottom surface 131 of the cover 130 is adhesively fixed to the inlay bottom surface 111, and the finished surface is The pair of cover side walls 133 on which (136) is formed are adhesively fixed to the inner paper side wall 113. At this time, the finished surface 136 is adhesively fixed to the inner paper side wall surface 113 adjacent thereto.

In addition, a pair of cover side wall surfaces 133 without the finished surface 136 are adhesively fixed to the outer surface of the finished surface 136, and the wing surface 138 is adhesively fixed to the inner surface of the inner paper side wall surface 113. .

As described in detail above, the packaging box according to the present invention has the effect of improving product productivity and reducing product production costs by enabling simultaneous molding of the inner material using paper cardboard and processing of the folded portion of the inner material. has

In addition, by improving the structure of the folding part of the packaging box according to the present invention, the edges of the packaging box are smoothed, which has the effect of improving the appearance.

In addition, it has the effect of making a V-shaped groove even on soft paper such as cardboard or corrugated cardboard.

In addition, the finished surface of the cover of the packaging box has a length that allows the ends to contact each other in the middle of the side wall of the inner paper during the process of folding it to the side wall of the inner paper, which has the effect of making the appearance of the cover beautiful. .

Meanwhile, the embodiments disclosed in these drawings are merely provided as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It is obvious to those skilled in the art that in addition to the embodiments disclosed herein, other modifications based on the technical idea of the present invention can be implemented.

110: Inlay 111: Inlay bottom surface
113: Inlay side wall 115: Folding groove
117: depression groove 119: space part
120: Processing unit 121: Inlay cutting blade
123: Processing blade 125: Half knife or sewing machine knife
127: pressurized protrusion 130: cover
131: Bottom surface of sign 133: Side wall surface of sign
136: finishing surface 138: wing surface
140: Cover cutting blade

Claims (1)

The paperboard is processed through the lifting and lowering movement of the processing unit composed of the inlay cutting blade and the processing blade to create an inlay having a fold groove and a depressed groove at the bottom of the inlay, a plurality of side walls of the inlay, and the boundary between the bottom of the inlay and the side walls of the inlay. Molding inlay processing step;
An inlay folding step of folding the inlay side wall surface of the inlay and processing the inlay to form a space therein;
A cover processing step of processing paper cardboard through the lifting motion of a cover cutting blade to form a cover having a cover bottom surface, a plurality of cover side walls, wing surfaces, and a finishing surface; and
The bottom surface of the cover is adhesively fixed to the bottom surface of the inside sheet so that the cover can be glued around the inside sheet that has gone through the inlay folding step, and the side walls of the pair of covers on which the finished surfaces are formed are adhesively fixed to the side walls of the inlay sheet, The finished surface is adhesively fixed to the side wall of the inlay adjacent thereto, the remaining cover side walls except for the pair of cover side walls on which the finished surface is formed are adhesively fixed to the outer surface of the finished surface, and the wing surface is adhesively fixed to the inner surface of the inlay side wall. It includes a cover adhesion step of adhesively fixing the
In the cover processing step, the length of the finished surface is formed to a length that allows the ends to come into contact with each other during the process of folding and adhesively fixing the finished surface to the side wall of the inlay,
The inlay cutting blade in the inlay processing step is made of the same shape structure as the outer surface shape of the inlay in the unfolded state, and the processing blade in the inlay processing step is a half-knife or sewing machine knife, the half-knife or sewing machine for forming a folding groove in the inlay. A method of manufacturing a packaging box including press protrusions provided on both sides of a knife to form depressions on both sides of the folding groove.