JP2010189830A - Production method of packaging tray for spherical fruit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging tray for housing in a depression a fruit 6, such as a melon or the like, of a comparatively heavy weight with large roughness one by one, so that the fruits 6, 6 such as melons housed in adjacent depressions have no fear of intervention with each other, the surface of the fruit 6 can be softly supported to prevent scratch of the fruit surface, and quality degradation caused by transportation is prevented. <P>SOLUTION: In a pulp mold tray 1, which serves as the packaging tray for vegetables/fruits, having consecutively connecting plural fruit-housing depressions 2, the paper is made and dried so as to have the roughness of an inner surface 1b of the depression 2 is large and the roughness of an outer surface 1a is small. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for producing a pulp mold packaging tray in which a plurality of arc-shaped concave portions for accommodating a circular arc-shaped lower portion of a fruit are formed adjacently and accommodated in a cardboard box.

  Conventionally, fruit transport trays have been developed using pulp or waste paper fiber molds, which contain melons and the like, and further use them in cardboard boxes (for example, Patent Document 1).

  However, the melon accommodated in the arcuate spherical lower concave portion was damaged by contact with the adjacent portion, and the commercial value was remarkably lowered.

  Therefore, a screen-like buffer piece for preventing damage due to mutual interference of melons is provided at the adjacent recess boundary portion of the tray (for example, Patent Documents 2 and 3).

  However, the inner surface of the tray and the outer surface of the buffer piece have a small roughness and poor cushioning properties, and there is a problem that the outer skin of the melon is easily rubbed and damaged.

Japanese Utility Model Publication 54-49381 Registration No. 1023194 Design Gazette Registration No. 1031051 Design Gazette

  The present invention accommodates relatively heavy and rough fruits, such as melons, one by one in the recesses, and does not interfere with fruits such as melons accommodated in the adjacent recesses, and softly supports the fruit surface. It is intended to prevent the surface of the fruit from being scratched and to prevent deterioration in quality due to transportation.

In order to achieve the above object, the present invention
First, an arcuate spherical recess (2) that accommodates the lower part of a plurality of spherical fruits, such as melons, is provided continuously in the lateral direction, and the recess (2) is formed at the boundary (3) of the recess (2) adjacent to the connecting direction. 2) is a method for producing a spherical fruit packaging tray made of pulp mold, each of which extends upwardly and has a buffer piece (4) protruding therefrom, wherein a concave arc-shaped mold net (9) is placed in the pulp solution tank. For packaging, in which a supporting mold (10) is immersed, a pulp solution is sucked from the mold (10) through its suction hole (11), and a pulp mold tray is made outside the mold net (9). In the method for producing a tray, the outer surface (1a) of the tray is brought into contact with the mold net (9) supported by the mold (10), so that the surface on the side opposite to the surface in contact with the mold net (9) is provided. The inner surface (1b) of the arc-shaped concave portion (2) has irregular irregularities (1 ', 1b ") is formed as a recess (2) having a large surface roughness, and the outer surface (1a) of the tray in contact with the mold net (9) is a surface roughness due to the mesh of the mold net (9). The tray is made by paper making and drying as a small smooth surface, and at the time of making the paper, the mold net (9) is placed outside the arcuate spherical recess (2) and inside the buffer piece (4). Thus, the outer surface of the buffer piece (4) is an outer surface having a large surface roughness on which irregular irregularities (1b ′, 1b ″) for softly supporting the fruit surface are formed, and the buffer piece (4, 4) The inner surface of 4) is formed as a surface having a small surface roughness due to the mesh of the mold net (9), and the pulp mold tray (1 ') made by the inside of the mold net (9) is sucked. Delivered to the receiving convex mold (9 '), and the receiving convex mold (9') moves the receiving paper making pulp mold tray (1 ') to the drying furnace. When the receiving convex mold (9 ') supplies the receiving papermaking pulp mold tray (1') to the conveyor (13), the arcuate spherical recess of the tray (1 ') is supplied onto the bear (13). The outer surface (1a) side of (2) is placed on the conveyor (13), and the paper-making pulp mold tray (1 ′) placed on the conveyor (13) is dried by the conveyor (13). A manufacturing method of a tray for packaging spherical fruits, which is transported to a machine and dried,
Second, the plurality of arcuate spherical recesses (2) are continuously provided in two rows in the lateral direction, and the buffer piece is provided at a boundary portion (3) of the recesses (2) adjacent to the connection and the row direction. The recesses (2) extend upward from the series of partition portions (5) and project as buffer pieces (4, 4) facing each other, and the mold net (9) is formed into the arc-shaped spherical recesses. By disposing the outer side of (2) and the inner side of the opposing buffer piece (4), the outer surface of the opposing buffer piece (4) has irregular irregularities (1b ′, 1b ″) that softly support the fruit surface. The surface of the buffer pieces (4, 4) facing each other is formed as a surface having a small surface roughness due to the mesh of the mold net (9). A method for producing a tray for packaging spherical fruits according to the first invention,
Third, the opposed buffer pieces (4, 4) are opposed to each other at a position above the series of partition portions (5) with a gap (t) interposed between the opposed buffer pieces (4, 4). A method for producing a tray for packaging spherical fruits according to the invention described in 2 above, wherein the tray is elastically tiltable in the direction;
Fourth, the method for producing a tray for packaging a spherical fruit according to the above 2 or 3, wherein the series of partition parts (5) orthogonal to the buffer pieces (4, 4) are formed to be bendable,
Consists of.
In order to achieve the above object, the present invention provides the following:
First, in a pulp mold tray in which a plurality of fruit-containing recesses are continuously provided, a tray for packaging fruits and vegetables, etc., obtained by making paper and drying with a large roughness of the inner surface of the recess and a small roughness of the outer surface,
Secondly, the concave portions are extended upward at the boundary portions of the concave portions adjacent to each other in the connecting direction so as to project opposing buffer pieces, a gap is interposed between the opposing buffer pieces, and the outer surface of the buffer piece is A tray for packaging fruits and vegetables or the like according to the first invention, wherein the roughness is large and the inner surface is small.
Third, the tray for packaging fruits and vegetables or the like according to the first or second invention, wherein a series of bendable section portions are formed in the connecting direction of the recess portions, and the recess portions are adjacent to both sides of the portion.
Consists of.

  Therefore, a relatively heavy, rough and round spherical fruit such as melon is accommodated in the recess and further transported in a cardboard box.

  The accommodated adjacent fruits are secured in the recess by mutual cushioning between the opposing buffering pieces against vibration and inertia caused by transportation.

  Further, the arcuate spherical surface of the fruit is softly held by small irregularities (large roughness) on the outer surface of the buffer piece and the inner surface of the concave portion.

  As described above, the present invention has an effect of preventing quality deterioration due to transportation without damaging the outer surface pattern of a spherical fruit having a relatively large weight and a spherical shape such as melon as described above.

It is an expanded vertical sectional view which shows trays for packaging, such as melon of this invention. FIG. 2 is an enlarged vertical sectional view of a papermaking state in FIG. 1. It is an expansion longitudinal cross-sectional view of the metal mold | die of this invention. It is a longitudinal cross-sectional view of the said metal mold | die / metal mold | die and a convex metal mold | die. It is a side view of the papermaking delivery state of a pulp mold tray. It is the supply state to the conveyor of the paper-making pulp mold tray, Comprising: It is a longitudinal cross-sectional view by the AA line. It is a top view of a paper-making pulp mold tray. FIG. 8 is a front view of FIG. 7. FIG. 8 is a right side view of FIG. 7. It is a longitudinal cross-sectional view by the BB line. It is a longitudinal cross-sectional view of the state in which the tray is bent from the section screen portion and accommodated in a cardboard box.

  Arc-shaped concave portions 2, 2, and 2 that accommodate the lower portion of the spherical fruit 6 such as melon are arranged in two rows in the horizontal direction (FIG. 1).

  In the tray 1, buffer portions 4, 4 projecting upward from each other by extending the concave portions 2, 2 upward at the boundary portion 3 or the ridge line portion of the concave portions 2, 2 adjacent in the row direction. A gap t is interposed between the buffer pieces 4 and 4 so as to be elastically tiltable in the opposite direction.

  A series of partition portions 5 which are adjacent to the opposing buffer pieces 4 and 4 (continuous direction a) and parallel to each other, that is, perpendicular to the buffer pieces 4 are formed to be bendable, and the portions 5 are bent to form FIG. As shown, the trays 1 are accommodated in a cardboard box 8 in contact with opposite direction force strips 7 formed on both side recesses 2, 2 of the portion 5.

  The tray 1 immerses the mold net 9 in a solution tank having a pulp concentration of about 1%, and the pulp solution 12 is sucked from the mold 10 supporting the mold net 9 through the suction holes 11. Pulp mold 1 'is made on the outside.

  The surface of the pulp mold 1 ′ in contact with the mold net 9 (outer surface 1 a) has a very small surface roughness and is smooth because the mesh of the mold net 9 is fine.

  However, the surface (inner surface 1b) opposite to the surface (outer surface 1a) in contact with the mold net 9 has a large surface roughness and forms irregular irregularities 1b 'and 1b "(FIG. 2).

  In the present invention, the mold net 9 is arranged outside the concave portion 2 and inside the counter-buffering piece 4 (on the side of the gap t), and the solution is sucked from the suction hole 11 to the inside of the concave arc-shaped mold net 9. The tray 1 having the concave portion and the buffer piece 4 is made, rotated upwardly above the pulp solution tank 16, delivered to the suction receiving convex die 9 ′, and dropped onto the wire mesh conveyor 13 facing the drying furnace. Supply.

  That is, as shown in FIG. 5, a plurality of arms 15 are provided radially on the rotation shaft 14 at every opening angle of 60 degrees, an opening 15 ′ is provided at the tip of the arm 15, and the gold 15 shown in FIG. The mold 10 is supported with the concave surface and the mold net 9 facing outward.

  The arm 15 rotates in the pulp solution tank 16, sucks the solution from the suction hole 11 to produce the pulp mold 1 'on the mold net 9, and rotates to the obliquely upper position b as shown in FIG. At this time, a convex mold 9 ′ (FIG. 4) is fitted to the mold net 9 as shown in FIG. 5, and air is blown out from the suction hole 11 of the mold 10 to suck the suction hole 11 ′ of the convex mold 9 ′. The papermaking pulp mold 1 ′ can be transferred from the mold net 9 to the convex mold 9 ′ by sucking air from the mold net 9.

  The convex mold 9 ′ is provided at the tip opening 15 a of the rotary delivery arm 15 ″ provided above the conveyor 13, and the received paper making pulp mold 1 ′ is placed on the conveyor 13 by air suction and air blowing operations by the suction holes 11 ′. , Transported to a dryer, and dried to obtain the product tray shown in FIGS.

  Air suction and blow-out from the suction holes 11 and 11 'are switched at the obliquely upward position b and obliquely downward position b' of the arms 15 and 15 "by the automatic switching valve operation to the arms 15 and 15 '.

  In the dried state, the pulp mold tray 1 has irregularities 1b ′, 1b ″ having a large roughness on the outer surface (inner surface 2 ′ of the recess 2) of the papermaking mold 1 ′ formed by the mold net 9. The unevenness 1b ′, 1b ″ of the inner surface 2 ′ of the recess 2 and the outer surface 4 ′ of the buffer piece 4 can be flexibly adapted to the surface of a fruit such as melon. Further, since the inner surface of the buffer piece 4 has a small roughness and small irregularities, the gap t can be sufficiently interposed.

DESCRIPTION OF SYMBOLS 1 Pulp mold tray 1a, 1b Inner / outer surface 2 Fruit accommodation recessed part a Consecutive direction 3 Boundary part 4 Opposing buffer piece t Gap 4 ', 4 "Inner / outer surface 5 Bendable division part

Claims (4)

An arcuate spherical recess (2) that accommodates the lower part of a spherical fruit such as a plurality of melons is provided in a horizontal direction,
Spherical fruit packaging tray made of pulp mould formed by extending the recesses (2) upward and buffering pieces (4) at the boundary portions (3) of the recesses (2) adjacent to each other in the continuous direction. The manufacturing method of
A mold (10) that supports a concave arc-shaped mold net (9) is immersed in the pulp solution tank, and the pulp solution is sucked from the mold (10) through the suction hole (11). (9) In the manufacturing method of the packaging tray which makes a pulp mold tray on the outside,
By contacting the outer surface (1a) of the tray with the mold net (9) supported by the mold (10), the arcuate spherical recess (2) on the opposite side to the surface in contact with the mold net (9) The inner surface (1b) is a recess (2) having irregularities (1b ′, 1b ″) on which irregular irregularities (1b ′, 1b ″) for softly supporting the fruit surface are formed, and a tray in contact with the mold net (9). The outer surface (1a) of the mold net (9) is a smooth surface having a small surface roughness due to the mesh of the mold net (9), and the tray is made and dried.
At the time of paper making, the mold net (9) is disposed outside the arcuate spherical recess (2) and inside the buffer piece (4) so that the outer surface of the buffer piece (4) is the surface of the fruit. An irregular surface (1b ′, 1b ″) that is softly supported is formed on the outer surface having a large surface roughness, and the inner surface of the buffer piece (4, 4) is a surface roughness due to the mesh of the mold net (9). Formed as a small surface,
Further, the pulp mold tray (1 ′) made on the inside of the mold net (9) is transferred to the suction receiving convex mold (9 ′), and the receiving convex mold (9 ′) receives the pulp making tray for receiving paper. (1 ') is fed onto the conveyor (13) facing the drying oven,
When the receiving convex mold (9 ′) supplies the received papermaking pulp mold tray (1 ′) to the conveyor (13), the outer surface (1a) side of the arc-shaped concave section (2) of the tray (1 ′) Is placed on the conveyor (13),
A method for producing a tray for packaging spherical fruits, characterized in that the papermaking pulp mold tray (1 ') placed on the conveyor (13) is transported to a dryer by the conveyor (13) and dried. The plurality of arcuate spherical recesses (2) are arranged in two rows in the lateral direction,
The buffer pieces extend to the boundary portion (3) of the recesses (2) adjacent to each other in a row and in the row direction, and the recesses (2) extend above the series of partition portions (5) to face each other. Protruding as a piece (4, 4),
By disposing the mold net (9) outside the arcuate spherical recess (2) and inside the opposing buffer piece (4), the outer surface of the opposing buffer piece (4) softly supports the fruit surface. Surface irregularities (1b ′, 1b ″) formed on the outer surface having a large surface roughness, and the inner surfaces of the opposed buffer pieces (4, 4) are surface roughness due to the mesh of the mold net (9). The method for producing a tray for packaging spherical fruits according to claim 1, wherein the surface is formed as a small surface.   The opposing buffer pieces (4, 4) are elastically tilted in the opposing direction at a position above the series of partition portions (5) with a gap (t) interposed between the opposing buffer pieces (4, 4). The manufacturing method of the tray for the packaging of the spherical fruit of Claim 2 made possible.   The method for producing a tray for packaging spherical fruits according to claim 2 or 3, wherein the series of partition portions (5) orthogonal to the buffer pieces (4, 4) are formed to be bendable.

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