JP3016003B2 - Edge mold tray for food and the like, method for producing the same and apparatus for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Object of the invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold tray mainly made of pulp used for distribution materials such as foods, a method for producing the same, and an apparatus for producing the same.

[0002]

BACKGROUND OF THE INVENTION Conventionally, paper products, so-called mold trays 1 ', have been used as distribution containers for packing meat, vegetables, prepared foods and the like in retail stores such as supermarkets. Such a mold tray 1 'is wrapped with a wrapping film by a machine or manually after the contents are put therein. However, since the outer edge portion 14' is concentrated in stress, the outer edge portion 14 'breaks down as shown in FIG. It was easy. Once such a buckling occurs, especially when using a machine, the buckling may reach the storage area and the packing may not be successful, causing the contents to spill out. There has been a problem that the contents leak out.

Therefore, as a measure for preventing such hip break, as shown in FIG. 4 (a), the inclination angle of the side plate 12 'constituting the accommodating portion 15' can be made gentle, or as shown in FIG.
As shown in FIG. 4B, a wide rib R is inserted, or as shown in FIG. 4C, a flange-shaped flange portion 13 'is expanded laterally. However, the one shown in FIG. 4 (a) has a problem that the volume is reduced, and the one shown in FIG. 4 (b) has a problem that the mold cost is expensive.
(C) has a problem that the total area becomes large. Therefore, as a first invention according to the present application, an attempt was made to prevent hip break by increasing the thickness of only the outer edge portion of the mold tray.

As shown in FIG. 5 (a), the mold tray comprises a papermaking apparatus 2 'having a carrier net 27' below the inside of the papermaking cup 22 'and a supporter 25' below the carrier net 27 '. Papermaking using Therefore, in order to increase the thickness of a part of the mold tray, a drain hole 26 'provided in the supporter 25' corresponding to this part is required.
Supporter 2 corresponding to other parts by increasing the area of
It is sufficient to reduce the area of the liquid drain hole 26 'provided in 5'. However, in this case, the overall drainage capacity is reduced, and the productivity is reduced.

In order to increase the thickness of a part of the mold tray, an attempt has been made to form the paper with the mold tray upside down as shown in FIG. In this case, since the pulp fibers P in the raw material liquid F tend to accumulate below, the outer edge portion 14 'becomes thicker, but the mesh formed by the carrier net 27' is formed on the inner surface of the accommodating portion 15 'of the base material 10'. Pattern M is created. For this reason, in order to make the product acceptable in the market, it is necessary to smooth the mesh pattern M by crushing the mesh pattern M by a press head after papermaking, and equipment and processes for this are indispensable, leading to an increase in cost. . Accordingly, a need has arisen for a method and apparatus for manufacturing a mold tray in which only the outer edge portion 14 'is thickened.

[0006]

[Technical matters attempted to be developed] The present invention has been made in view of such a background. In order to prevent breakage during packaging or the like, the thickness of the outer edge of a new food or the like is increased. An attempt was made to develop a mold tray, a method for manufacturing the same, and a device for manufacturing the same.

[0007]

Configuration of the Invention

Means for achieving the object: In the mold tray for foods and the like according to the first aspect, the main raw material is pulp fiber, and the pulp fiber is formed in a mold tray. The liquid is supplied and formed, and the outer edge of the primary product is formed
There is no supporter below the carrier net
Over the entire circumference of the outer edge.
The thickness of the outer edge is increased by setting
Characterized in that the thicker than the thickness of the other portions.

According to a second aspect of the present invention, there is provided a method for manufacturing a mold tray having a thick edge for foods or the like, wherein a pulp fiber is used as a main raw material, and the pulp fiber is formed in a mold. Supply liquid
And the carrier on which the outer edge of the primary product is formed
As a state where supporters are not located below the net,
The flow rate of the raw material liquid is set to be larger than the other portions over the entire periphery of the outer edge.

Further, the apparatus for manufacturing a mold tray having a thick edge of food or the like according to claim 3 comprises a raw material supply device, a constant-rate discharge pump, and a papermaking main body device, wherein the papermaking main body device is located below the inside of the papermaking cup. In a device equipped with a carrier net and a supporter below the carrier net,
This supporter is characterized in that the outer edge of the primary product is not located below the carrier net from which it is extracted. It is an object of the present invention to achieve the object by using the configuration of the invention described in each of the claims.

[0010]

According to the first aspect of the present invention, the edge-thickness mold tray is formed by supplying the raw material liquid from the inner surface side, and the outer edge portion has the thickness of the other portion. Since it is formed to be thicker than the wall thickness, the strength of the outer edge portion is increased, the buckling at the time of packaging is prevented, and the housing portion is formed smoothly.

According to the second aspect of the present invention, in the method of manufacturing the edge-thick mold tray, the flow rate of the raw material liquid is set to be larger over the entire periphery of the outer edge than in the other portions. A product having a greater thickness than other parts can be manufactured.

According to the third aspect of the present invention, since the supporter is not located below the outer edge of the primary product, the flow rate of the raw material liquid at the outer edge is limited to other parts. More than Especially in this case,
Conventionally, it is possible to partially increase the flow amount of the raw material liquid by overriding the support of the carrier net by the supporter, which has become common technical knowledge, and forming a portion where the supporter does not exist.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an edge-thick mold tray 1 according to the present invention, which is made of pulp fiber P as a main raw material. As an example, a bottom plate 11 and a side plate 12 rising around the bottom plate 11 are rectangular. Of the side plate 1
2 and a flange portion 13 projecting in a brim shape. Then, only the flange portion 13 or the side plate 1
The range from the top of 2 to the flange 13 is the outer edge 1
Defined as 4. In the present invention, the outer edge portion 14 is 70 to 150% thicker than the other portions. First, a papermaking apparatus 2 for manufacturing the edge thickness mold tray 1 will be described with reference to the drawings, and a method of manufacturing the edge thickness mold tray 1 and the edge thickness mold tray 1 will be described while describing an operation state of the papermaking apparatus 2. .

As shown in FIG. 2, the papermaking apparatus 2 is an apparatus for extracting a liquid component L from a raw material liquid F containing pulp fibers P and for producing a base material 10 as a primary product. This base material 10 is dried in the next step, and becomes the edge-shaped mold tray 1 as a final product. Reference numeral 22 denotes a papermaking cup, which is a main member of the papermaking apparatus 2, and the papermaking cylinder 2
3 and a saucer 24, and have an appropriate volume according to the specifications of the product to be made. A tube is connected to the lower end of the papermaking cup 22, and a fixed-rate discharge pump as a suction device is connected to the tube.

Next, a configuration for realizing the method of manufacturing the molded mold tray 1 for food or the like according to claim 2 will be described. First, on the upper surface of the saucer 24 below the papermaking cup 22,
A supporter 25 having a number of drain holes 26 is provided. This is almost the same shape as the carrier net 27 that is the extraction type of the base material 10, and the carrier net 2 is placed on the supporter 25.
7 is placed and held between the press ring 28 and the mounting plate 29 at the connection between the papermaking cylinder 23 and the tray 24. However, as defined in claim 3, the substrate 10
The supporter 25 is not located below the carrier net 27 where the outer edge portion 14 is formed. In contrast, substrate 1
Since the supporter 25 exists below the carrier net 27 at the place where the paper is made except for the outer edge portion 0, the flow-down ability of the raw material liquid F at the two places where these states are different is different.

In order to obtain the base material 10 using such a papermaking apparatus 2, first, the raw material liquid F is taken out by a predetermined amount, and is poured into the papermaking cup 22. Then, when suction is performed by the constant discharge pump, the pulp fibers P are extracted on the carrier net 27 to form a web-like layer having a certain thickness, and the liquid component L flows down the carrier net 27 and further down. At this time, as shown in FIG. 2 (a), the location where the outer edge portion 14 of the base material 10 is formed has a high flow-down ability, so that more raw material liquid F flows and more pulp fibers P on the carrier net 27. Is deposited. If possible, it may be performed by gravity flow.

When the flow of the liquid component L is completed in this way, as shown in FIG. 2 (b), the outer edge portion 14 on the carrier net 27 is 70 to 150% thicker than the other portions. Base material 10 which is a solid component having a predetermined shape
This is transferred to a drying step at this position or by a transfer device (not shown), and is subjected to a drying process by an appropriate means to obtain the edge-thick mold tray 1. The housing surface of the housing portion 15 on the inner surface side of the edge-thickness mold tray 1 is smooth because the raw material liquid F is supplied to the housing surface and the pulp fibers P are deposited.

[0018]

According to the first aspect of the present invention, the edge-thick mold tray 1 is provided with the raw material liquid F from the inner surface side.
Is supplied and the outer edge portion 14 is formed to be thicker than the other portions.
The strength of the container 15 is increased, the buckling at the time of packaging is prevented, and the housing portion 15 is formed smoothly. Since such edge mold tray 1 does not break at the time of lapping work,
No leakage of contents occurs.

Further, according to the second aspect of the present invention, in the method of manufacturing the edge-thick mold tray 1, the flow rate of the raw material liquid F is set to be larger over the entire periphery of the outer edge portion 14 than in other portions. A product in which the thickness of the portion 14 is thicker than other portions can be manufactured.

Further, according to the third aspect of the present invention, since the supporter 25 is not located below the outer edge portion 14 of the primary product, the outer edge portion 14 is not provided.
Of the raw material liquid F becomes larger than other parts. In particular, in the present case, the entire support of the carrier net 27 by the supporter 25, which has conventionally become a common technical knowledge, is overridden from the bottom, and a part where the supporter 25 does not exist is formed, so that the flow rate of the raw material liquid F is partially reduced. Can be increased. This makes it possible to inexpensively manufacture the thick mold tray 1 which does not break down and does not hinder the lapping operation.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cut edge mold tray of the present invention in a cutaway manner and an enlarged perspective view showing a part of the cutaway surface thereof.

FIG. 2 is a longitudinal sectional side view showing an enlarged part of a fractured surface of a papermaking apparatus used in a manufacturing process of an edge thick mold tray of the present invention.

FIG. 3 is a perspective view showing a state in which a conventional mold tray is bent.

FIG. 4 is a skeleton side view showing three types of measures against hip break in a conventional mold tray.

FIG. 5 is a skeleton side view showing two conventional papermaking apparatuses.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 (edge thickness) Mold tray 2 Papermaking apparatus 10 Base material 11 Bottom plate 12 Side plate 13 Flange part 14 Outer edge part 15 Housing part 22 Papermaking cup 23 Papermaking cylinder 24 Receiving tray 25 Supporter 26 Drain hole 27 Carrier net 28 Holding ring 29 Mounting plate F Raw material liquid L Liquid component M Mesh pattern P Pulp fiber

Claims (3)

(57) [Claims] A pulp fiber is used as a main raw material, and the pulp fiber is molded into a mold tray.
This mold tray is formed by supplying the raw material liquid from the inner surface side, and the outer edge of the primary product is formed.
No supporter is located below the carrier net
The flow rate of the raw material liquid is
By setting a large amount than the part, characterized in that the thickness of the outer edge portion is formed thicker than the thickness of the other portions, edge thickness mold tray foods. 2. A pulp fiber is used as a main raw material, and a raw material liquid is supplied from the inner side of the mold tray in the production of a mold tray formed by molding the pulp fiber.
Both are carrier nets where the outer edge of the primary product is formed
Wherein the supporter is not positioned below the outer edge of the outer peripheral portion, and the flow rate of the raw material liquid is set to be larger than the other portions over the entire periphery of the outer edge portion. 3. An apparatus comprising a raw material supply device, a fixed-rate discharge pump, and a papermaking main body device, wherein the papermaking main body device has a carrier net below the inside of the papermaking cup and a supporter below the carrier net. An apparatus for manufacturing a thick mold tray for foods and the like, wherein the supporter is not located below the carrier net from which the outer edge of the primary product is extracted.