KR20240018890A - Method for manufacturing a fruit tray using the stretching characteristics of a paper fabric having an incision and an eco-friendly fruit tray manufactured thereby - Google Patents

Abstract

The present invention relates to a method for manufacturing fruit trays made of paper fabric and an eco-friendly fruit tray manufactured therefrom. It allows fruit trays to be manufactured simply from paper fabrics such as cardboard without a wet molding process, thereby enabling recycling and reducing manufacturing costs and product unit prices. , which allowed for a dramatic reduction in logistics costs.
This method of manufacturing a fruit tray of the present invention is provided with a plurality of patterned incision lines, and when pressed, the incision lines are spread in a direction perpendicular to the incision line, and the paper fabric is stretched and deformed by pressing the paper fabric, thereby spreading the incision lines to form the fruit. It is characterized by forming a plurality of hemispherical seating grooves for seating in a recessed form.

Description

Method for manufacturing a fruit tray using the stretching characteristics of a paper fabric having an incision and an eco-friendly fruit tray manufactured thereby }

The present invention relates to a fruit tray, and in particular, a paper fabric that allows fruit trays to be manufactured simply from paper fabric such as corrugated cardboard without a wet molding process, thereby enabling recycling and dramatically lowering manufacturing costs, product costs, and logistics costs. It relates to a fruit tray manufacturing method and an eco-friendly fruit tray manufactured therefrom.

As the distribution method of agricultural products has changed from producer-centered to consumer-centered through large discount stores, home shopping, and e-commerce, there has been increased interest in not only price but also taste, freshness, safety, and functionality when purchasing agricultural products, through thorough selection and grading, ensuring safety, and differentiation. Brand and packaging development are emerging as important factors.

In particular, in order to dominate the home shopping and e-commerce markets that emphasize convenience and economy, more emphasis should be placed on accurately understanding consumer requirements and developing packaging that can provide maximum convenience to consumers while preventing damage to agricultural products during delivery. I am leaving it.

Currently, fruits are put in packaging boxes and go through the transportation and distribution process. At this time, in order to prevent external shocks from being applied to the fruits, a hemispherical groove of an appropriate diameter is formed on a flat plate to seat the fruits in a fruit tray (nanjwa). ) or using a fan cap.

Foamed resin, which is inexpensive, has been widely used as the material for such fruit trays. However, due to its large volume, the logistics cost for production/collection is more than three times that of paper, and it has recently been pointed out as one of the items that cannot be recycled in apartments. The use of fruit trays made of paper has become inevitable.

However, in order to manufacture fruit trays using paper instead of foaming resin, it is necessary not only to use a hot pressing process, but also to use tank equipment to process recycled paper and an immersion pulp molding machine to create wet patterns. Since the process using pulp molding and the drying process (depending on the thickness, it must be dried in the sun and the drying variable depending on the weather is large) were carried out, various devices had to be installed intensively in one large place, and the manufactured products were manufactured therefrom. Paper fruit trays had the problem of being very expensive compared to fruit trays made of foam resin, and their large volume and weight significantly increased logistics costs.

Korea Public Utility Model Publication No. 2008-0003360 (2008.08.18.)

Accordingly, the present invention was proposed to solve the above-described conventional problems. The purpose of the present invention is to enable fruit trays to be manufactured simply from paper fabric without a wet molding process, thereby enabling recycling and reducing manufacturing costs and product unit prices. The goal is to provide a method for manufacturing fruit trays made of paper fabric that can dramatically reduce logistics costs, and provide eco-friendly fruit trays manufactured therefrom.

In order to achieve the above object, the fruit tray manufacturing method according to the technical idea of the present invention is provided with a plurality of patterned cut lines so that when pressed, the cut lines are stretched in a direction perpendicular to the cut lines and can be stretched and deformed. Its technical feature is that it presses a piece of fabric to open the incision lines, forming a plurality of hemispherical seating grooves for seating fruit in a depressed shape.

Here, a mounting step of installing the paper fabric between the first mold and the second mold, each of which has a molding groove and a molding protrusion for forming a seating groove of the fruit tray; And a molding step of forming a hemispherical seating groove in the paper fabric by heating and compressing the paper fabric with the first mold and the second mold with the paper fabric interposed therebetween.

Additionally, in the mounting step, one end of the paper fabric may be fixed to one end of the first or second mold to form a fixed end, and the other end may be made a free end to allow displacement.

Additionally, one end of the paper fabric fixed to the first or second mold may be located in the longitudinal direction of the incision line.

In addition, in the step of mounting the paper fabric, a plurality of paper fabrics are mounted in a partially overlapping state, and a seating groove is formed by the pressing action of the first mold and the second mold in the forming step, thereby reducing the width of the paper fabric. It can be characterized in that it allows displacement to occur at the overlapped area between the paper fabrics, thereby preventing the occurrence of disconnected areas between the paper fabrics.

In addition, one end of the paper fabric located on one side of the plurality of paper fabrics is fixed to one end of the first mold or the second mold to become a fixed end, and the other end is a free end and is allowed to be displaced, and the plurality of paper fabrics are allowed to be displaced. The paper fabric located on the other side of the fabric is made into a fixed end by fixing the other end to the other end of the first or second mold, and the other end is allowed to be displaced to the free end, but overlaps the other end of the paper fabric located on one side. It can be characterized by being placed in a state.

Additionally, the end of the paper fabric fixed to the first or second mold may be located in the longitudinal direction of the incision line.

In addition, in the step of mounting the paper fabric, one end of the paper fabric located in the longitudinal direction of the cut line is fixed to the first mold or the second mold, and the other end becomes a free end and is allowed to be displaced, but in the forming step, It may be characterized in that it is mounted with a width larger than the width of the fruit tray to be manufactured, taking into account the width of the paper fabric that decreases as the seating groove is formed by the pressurizing action of the first mold and the second mold.

In addition, the cut line is formed with the width direction of the paper fabric as the longitudinal direction, and a plurality of the cut lines are arranged at a distance from each other along the width direction of the paper fabric to form one row, and the nth row of cut lines is It is characterized in that it is formed in a pattern in which the (n+1)th row of incised lines are positioned correspondingly to the side, and the (n+1)th row of incised lines are located next to the (n+1)th row of incised lines to each other. can do.

Additionally, the paper fabric may be characterized as corrugated cardboard.

Meanwhile, the fruit tray of the present invention is manufactured by the above-described fruit tray manufacturing method and is provided with a plurality of hemispherical seating grooves for seating fruit, and the hemispherical seating grooves are formed in a depressed shape by widening the incision line of the paper fabric. It is characterized by its composition.

The fruit tray manufacturing method according to the present invention can simply manufacture a fruit tray with a seating groove from paper fabric with a plurality of patterned incision lines without a wet molding process, thereby simplifying production facilities with a minimum number of devices. It has the advantage of being able to manufacture eco-friendly fruit trays that are recyclable and can dramatically reduce manufacturing costs, product costs, and logistics costs.

In addition, the present invention is advantageous in ensuring lightness while having relatively high strength when using corrugated cardboard as a paper fabric.

Figure 1 is a perspective view of a fruit tray manufactured by the fruit tray manufacturing method according to an embodiment of the present invention.
Figure 2 is a top view of a fruit tray manufactured by the fruit tray manufacturing method according to an embodiment of the present invention
3A and 3B are reference views for explaining the paper fabric used in the fruit tray manufacturing method according to an embodiment of the present invention.
Figures 4a to 4e are a series of reference diagrams for explaining the method of manufacturing a fruit tray according to an embodiment of the present invention.
Figures 5a and 5b are a series of reference views for explaining a method of manufacturing a fruit tray according to an embodiment of the present invention.
Figure 6 is a reference diagram for explaining the method of manufacturing a fruit tray according to a modified embodiment of the present invention.

A method for manufacturing a fruit tray according to embodiments of the present invention will be described in detail with reference to the attached drawings. Since the present invention can be subject to various changes and can have various forms, specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. While describing each drawing, similar reference numerals are used for similar components. In the attached drawings, the dimensions of the structures are enlarged from the actual size for clarity of the present invention, or reduced from the actual size to understand the schematic configuration.

Additionally, terms such as first and second may be used to 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. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. Meanwhile, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as having an ideal or excessively formal meaning unless clearly defined in the present application. .

<Example>

Figure 1 is a perspective view of a fruit tray manufactured by a fruit tray manufacturing method according to an embodiment of the present invention, Figure 2 is a top view of a fruit tray manufactured by a fruit tray manufacturing method according to an embodiment of the present invention, Figure 3a and Figure 3b is a reference diagram for explaining the paper fabric used in the fruit tray manufacturing method according to an embodiment of the present invention, and Figures 4a to 4e and Figures 5a and 5b are fruit trays according to an embodiment of the present invention. This is a series of reference diagrams to explain the manufacturing method.

The method of manufacturing a fruit tray according to an embodiment of the present invention is an eco-friendly fruit tray that is recyclable and has a plurality of hemispherical seating grooves 115 in which fruits are individually seated on a thin paper fabric 110, as shown in FIGS. 1 and 2. (110a) can be easily manufactured. The fruit tray manufacturing method according to an embodiment of the present invention is provided with a plurality of cut lines 111 patterned as shown in Figure 3a, and when pressed as shown in Figure 3b, the cut lines (111) are formed in a direction perpendicular to the cut lines 111. The paper fabric 110 is actively used so that it can be stretched and deformed as 111) opens. As a result, the wet molding process of making paper into a paste state, first forming it into the shape of a fruit tray, and drying it before forming the fruit tray is unnecessary, and the seating groove 115 is formed in the paper fabric 110 only through the heat pressing process. Because the fruit tray 110a can be easily manufactured, production facilities can be simplified and manufacturing costs, product costs, and even logistics costs can be dramatically reduced.

Here, as the paper fabric 110, paper as thin as general copy paper with a thickness of 0.1 mm or less may be used, or corrugated cardboard may be used. In the case of corrugated cardboard, it is advantageous in securing lightness compared to corrugated cardboard while having relatively high strength. In addition, laminated paper can be used as a paper fabric, and although it is not corrugated cardboard, paper in the form of a blend of fibers that can secure high tensile strength compared to its thin thickness can be used. When paper mixed with fiber threads is used as a paper fabric, even if the paper fabric itself does not have stretching characteristics, the same performance can be achieved because the incision line opens and shows the same stretching characteristics.

Below, the method of manufacturing a fruit tray according to an embodiment of the present invention will be described in more detail.

In the fruit tray manufacturing method according to the embodiment of the present invention, a plurality of patterned cut lines 111 are first formed as shown in Figure 3a, and when pressed by the molding protrusion 121b of the second mold 120b, the cut lines are formed. Prepare a paper fabric 110 that can be stretched and deformed as the incision line 111 spreads in a direction perpendicular to (111). In the case of the cut line 111, as shown in the drawing, it has a relatively short length of 1 to 4 centimeters and is formed in the width direction of the paper fabric 110. A plurality of such incision lines 111 are arranged at a distance from each other along the width direction of the paper fabric 110 to form one row. Here, the cut line 111 in the nth row and the cut line 111 in the (n+1)th row adjacent to it are not formed side by side at the same position, but are formed at positions offset from each other (where n is a natural number). That is, next to the cut line 111 in the nth row, the spaced part 112 between the cut lines 111 in the (n+1)th row is correspondingly located, and next to the spaced part 112 between the cut lines 111 in the nth row. It is formed in a pattern in which the incision line 111 of the (n+1)th row is located. Therefore, the entire paper fabric 110 forms a pattern in which the incision lines 111 and their spaced portions 112 are alternately positioned. When the paper fabric 110 having a plurality of patterned cut lines 111 is pressed by an external force F as shown in FIG. 3b, the cut lines are formed in at least a portion of the entire area L1 area L2. As (111) opens, the paper fabric 110 can be stretched in the longitudinal direction, precisely in the direction perpendicular to the incision line 111. Here, the thickness of the paper fabric 110, the length of the cut line 111 formed on the paper fabric 110, and the shape of the arranged pattern are determined by considering the size and weight of the fruit and the type of fruit tray 110a to be manufactured. Of course, it may change depending on.

Afterwards, a step of mounting the paper fabric 110 between the first mold 120a and the second mold 120b is performed. In this step, a plurality of pieces of paper are formed between the first mold 120a and the second mold 120b, each of which has a molding groove 121a and a molding protrusion 121b for forming the seating groove 115 of the fruit tray 110a. The fabric 110 is mounted in a partially overlapping state. For this purpose, one end of the paper fabric 110 is made into a fixed end by fixing one end located in the width direction to one end of the first mold 120a as shown in FIGS. 4A and 5A, and the other end on the opposite side becomes a free end and is subject to displacement. Allow it to be possible. Next, as shown in FIGS. 4b and 5b, another paper fabric 110 is prepared and the other end located in the width direction is fixed to the other end of the first mold 120a to make a fixed end, and the end located on the opposite side is free. It becomes a stage and allows displacement. At this time, a plurality of fixing pins 131 can be used to fix the paper fabric 110 to the first mold 120a, and the other end and the second end of the paper fabric 110 fixed to one end of the first mold 120a. 1One end of the paper fabric 110 fixed to the other end of the mold 120a overlaps each other. The area where the paper fabric 110 overlaps is pressed by the molding protrusion 121b of the second mold 120b, and the paper fabric 110 that cannot be stretched when the seating groove 115 is formed is formed. A spare amount is secured in the width direction, and when forming the seating groove 115, the overlapping area of the paper fabric 110 gradually decreases, and the overlapping area until the end is later used when the fruit tray 110a is completed through a heat pressing process. They are joined together to form a joint 114. In this way, when the plurality of paper fabrics 110 are mounted in a partially overlapping state, the problem of excessive eccentricity when heat-pressing the paper fabric 110 by the first mold 120a and the second mold 120b is prevented. Since this can be done, there is an advantage that there is almost no problem due to eccentricity even when the fruit tray 110a expanded to a wide width is manufactured.

Meanwhile, in the drawing, two paper fabrics 110 are shown to be mounted side by side in a partially overlapping state between the first mold 120a and the second mold 120b, but three or more paper fabrics 110 are partially installed in the same manner. It is also possible to manufacture the fruit tray 110a in a wider expanded form by mounting them side by side in an overlapping state. In this way, when manufacturing the fruit tray 110a with three or more paper fabrics 110, one end of the paper fabric 110 located on one side of the plurality of paper fabrics 110 is attached to one end of the first mold 120a. It is fixed to make a fixed end, and the other end becomes a free end and is allowed to be displaced, and the paper fabric 110 located on the most other side among the plurality of paper fabrics 110 has its other end attached to the other end of the first mold 120a. It is fixed to make a fixed end, and one end becomes a free end and is allowed to be displaced. And the paper fabric 110 located between the paper fabric 110 located on one side and the paper fabric 110 located on the other side is partially overlapping with the neighboring paper fabric 110 without fixing both one end and the other end. Just place them side by side and install them.

Afterwards, the step of forming a hemispherical seating groove 115 on the paper fabric 110 is performed. For this purpose, as shown in FIGS. 4C and 4D, the upper second mold 120b is gradually lowered toward the lower first mold 120a on which the paper fabric 110 is mounted, while the paper fabric 110 mounted in the middle is gradually lowered. ) is heated and compressed. Then, the paper fabric 110 mounted on the first mold 120a is gradually pressed by the molding protrusion 121b of the descending second mold 120b, forming a seating groove 115. At this time, the incision line 111 at the area pressed by the molding protrusion 121b of the second mold 120b spreads, allowing deformation into the form of the seating groove 115. When the second mold 120b is completely lowered and the molding groove 121a of the first mold 120a and the molding protrusion 121b of the second mold 120b are engaged, the seating groove of the paper fabric 110 is between them. (115) The formed area is heated in a strongly compressed state, allowing it to maintain its deformed shape. Here, when the forming protrusion 121b of the second mold 120b presses the paper fabric 110, a pressing force is applied radially, and in response to this pressing force, a cut line 111 is formed in the longitudinal direction of the paper fabric 110. While stretching occurs while spreading, the free end of the paper fabric 110 is pulled in the width direction of the paper fabric 110, and the seating groove 115 is smoothly formed.

Afterwards, the step of separating the molded fruit tray 110a from the first mold 120a and the second mold 120b is performed. In this step, as shown in Figure 4e, the second mold 120b, which was in a state of engagement with the first mold 120a, is raised and separated from the first mold 120a, and then the paper fabric 110 is placed in the first mold 120a. Remove the fixing pin 131 fixed to the mold 120a. Then, the molded fruit tray 110a can be simply separated from the first mold 120a and loaded.

Through this simple process, it is possible to obtain a thin, light, yet durable fruit tray (110a) made of paper, and the fruit tray (110a) of the present invention manufactured in this way can dramatically lower the manufacturing cost and product price as described above. It also has the advantage of being able to significantly reduce logistics costs by making it easy to load and transport.

Figure 6 is a reference diagram for explaining a method of manufacturing a fruit tray according to a modified embodiment of the present invention.

As shown, in the modified embodiment of the present invention, unlike the previous embodiment, a plurality of paper fabrics 110 are mounted in a partially overlapping state, but a paper fabric 110 having a width wider than the width of the fruit tray to be manufactured is installed. ) is characterized in that one is mounted on the first mold (120a).

In this case as well, one end of the paper fabric 110 is fixed to one end of the first mold 120a using the fixing pin 131, and the other end located on the opposite side becomes a free end and is mounted in a way that allows for displacement. . As a result, when the molding protrusion 121b of the second mold 120b presses the paper fabric 110, the cutting line 111 spreads in the longitudinal direction of the paper fabric 110, causing stretching. Meanwhile, the other end of the paper fabric 110 is pulled in the width direction of the paper fabric 110, thereby forming a seating groove 115.

According to this modified embodiment, the process can be further simplified because there is no need to install a plurality of paper fabrics 110, and it can be a great advantage in that there is no joint 114 in the manufactured fruit tray. However, since eccentricity may occur when the paper fabric 110 is pressed by the first mold 120a and the second mold 120b, there is a disadvantage in that there are some restrictions when manufacturing wide fruit trays. .

Although the preferred embodiments of the present invention have been described above, various changes, modifications, and equivalents may be used in the present invention. It is clear that the present invention can be equally applied by appropriately modifying the above embodiment. Accordingly, the above description does not limit the scope of the present invention, which is defined by the limitations of the claims below.

110: paper fabric 110a: fruit tray
111: incision line 111a: separation portion (between incision line and incision line)
115: Seating groove 120a: First mold
121a: Molding groove 120b: Second mold
121b: molded protrusion 131: fixing pin

Claims (11)

The paper fabric is equipped with a plurality of patterned incision lines and is pressed so that the incision lines can be stretched and deformed in a direction perpendicular to the incision lines. The incision lines are opened and the hemispherical seating groove for fruit placement is recessed. A fruit tray manufacturing method characterized by forming a plurality of shapes. According to paragraph 1,
A mounting step of installing the paper fabric between a first mold and a second mold each having a molding groove and a molding protrusion for forming a seating groove of the fruit tray; and
A molding step of forming a hemispherical seating groove in the paper fabric by heating and compressing the paper fabric with the first mold and the second mold with the paper fabric interposed therebetween;
A fruit tray manufacturing method comprising: According to paragraph 2,
In the mounting step, one end of the paper fabric is fixed to one end of the first mold or the second mold to form a fixed end, and the other end becomes a free end to allow displacement. According to paragraph 3,
A fruit tray manufacturing method, characterized in that one end of the paper fabric fixed to the first mold or the second mold is located on the longitudinal side of the incision line. According to paragraph 2,
In the step of mounting the paper fabric, a plurality of paper fabrics are mounted in a partially overlapping state, and in the forming step, a seating groove is formed by the pressurizing action of the first mold and the second mold, and the width of the paper fabric is reduced when the paper fabric is reduced. A method of manufacturing a fruit tray, characterized in that it prevents the occurrence of disconnections between paper fabrics by allowing displacement to occur in overlapping areas between fabrics. According to clause 5,
One end of the paper fabric located on one side of the plurality of paper fabrics is fixed to one end of the first mold or the second mold to become a fixed end, and the other end becomes a free end and is allowed to be displaced. Among the plurality of paper fabrics, The other end of the paper fabric located on the other side is made into a fixed end by fixing the other end to the other end of the first or second mold, and the other end is allowed to be displaced to a free end, but is overlapped with the other end of the paper fabric located on one side. A fruit tray manufacturing method characterized by positioning. According to clause 6,
A fruit tray manufacturing method, characterized in that the end of the paper fabric fixed to the first mold or the second mold is located on the longitudinal side of the incision line. According to paragraph 3,
In the step of mounting the paper fabric, one end of the paper fabric located in the longitudinal direction of the cut line is fixed to the first mold or the second mold, and the other end becomes a free end and is allowed to be displaced. In the forming step, the paper fabric is fixed to the first mold or the second mold. A method of manufacturing a fruit tray, characterized in that the width of the fruit tray to be manufactured is mounted in consideration of the width of the paper fabric, which is reduced as a seating groove is formed by the pressing action of the first mold and the second mold. According to paragraph 1,
The incision line is formed with the width direction of the paper fabric as the longitudinal direction,
The plurality of cut lines are arranged at a distance from each other along the width direction of the paper fabric to form one row, and the space between the cut lines in the (n+1)th column is located next to the cut line in the nth column correspondingly, and the space between the cut lines in the nth column is located correspondingly. A pattern is formed in which the (n+1)th row of incision lines are positioned correspondingly next to the space between the incision lines,
n: natural number
A fruit tray manufacturing method characterized by: According to paragraph 1,
A fruit tray manufacturing method, characterized in that the paper fabric is corrugated cardboard. It is manufactured by the fruit tray manufacturing method of any one of claims 1 to 10 and is provided with a plurality of hemispherical seating grooves for seating fruit, wherein the hemispherical seating grooves are formed in a depressed form as the incision line of the paper fabric spreads. Featured fruit tray.

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