JPH107103A - Packaging method and equipment for hypha food - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging means and equipment which can package a hypha food in a nearly airtight condition. SOLUTION: A film sheet F for wrapping is placed on edge gathering equipment 1 whose center is open, and right below this, a pan 5 is placed. After a hypha food is placed on the film sheet F, the pan 5 is lowered relative to the edge gathering equipment 1 and the opening 1C in the center of the edge gathering equipment 1 is closed to gather the film sheet F from its periphery within a limit not to damage the film sheet. In that condition, the film sheet edge gathered from its pheriphery is heat welded at the upper part of the edge gathering equipment 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for packaging mycelial foods such as shimeji and nameko mushrooms (hereinafter simply referred to as "mycelial foods").

[0002]

2. Description of the Related Art
In supermarkets and the like, mycelial foods have been sold on styrene plates, wrapped and wrapped thereon. Further, as another form, it is housed in a deep dish-shaped plastic container and sold with a wrap of a polystyrene film sheet or a polypropylene film sheet attached to the upper surface thereof.

[0003] However, in the case of the above-mentioned packaging, the packaging cost is relatively expensive compared to the price of the contents, and the packaging material is discarded after use, so that there is much waste from the viewpoint of resource saving and energy saving. Had become.

[0004] In addition, due to the characteristics of the mycelial food, if the mycelial food is left open, hyphae are likely to be generated in a short time, and the value as a product is lost. In addition, if the mycelial food is not packaged in a sealed state, it cannot be sold as a product in a short time.

The present invention has been made in view of such a situation, and an object of the present invention is to provide a method and an apparatus for packaging a mycelial food which does not have the above-mentioned problems.

[0006]

According to a first aspect of the present invention, there is provided a method for packaging a mycelial food by heat-welding a "wrinkle" formed by gathering edges of a film sheet. Focusing on the formation of a substantially sealed state (not a completely sealed state) due to "wrinkles", a film sheet to be wrapped is placed on the edge collecting means having an open center, and a pan is placed immediately below the film sheet. After placing the mycelial food on the upper open film sheet and wrapping the mycelial food in the film sheet with its weight, the tray is positioned relative to the edge collecting means. And the film sheet is gathered from the periphery as far as the film sheet is not damaged by narrowing the opening at the center of the edge collecting means. There are, characterized in that the edges of the film sheet in a state in which gathered from surrounding said thermally welded.

However, according to the packaging method configured as described above, since the film sheets are heat-welded in a state where they are gathered from each other as far as the film sheets are not damaged from the surroundings, the heat-welded portion is substantially sealed, that is, the heat-sealing part is closed. A hole with a very small cross-sectional area (a pinhole or a vent hole with a cross-sectional area smaller than that) that has been gathered to form a "wrinkle" by welding.
Is formed, so that the generation of mycelium can be prevented as much as possible, and the mycelial food can be breathed to a necessary extent.

According to a third aspect of the present invention, there is provided the mycelial food packaging apparatus according to the present invention, wherein the film sheet is positioned at an upper position, and the central position is such that the mycelial food can pass through the center in a state where the film is initially separated from the film sheet. A pair of edge collecting means that change into an opening of a size that can be narrowed as small as possible without damaging the upper part of the film sheet that has been moved downward with the mycelial food placed thereon; A tray that is located below the collecting means and holds a bottom of the film sheet on which the mycelial food is placed and moved below the opening of the edge collecting means; A pair of heat-sealing edges of the film sheet gathered from the periphery by the edge gathering means from both sides. high temperature Min characterized by comprising a heat welding unit which has a tip.

According to the packaging apparatus configured as described above, it is possible to implement the packaging method according to the first aspect.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As in the packaging method according to the second aspect of the present invention, in the packaging method according to the first aspect, when a portion above the heat-welded portion is cut by a cutting device, the packaging becomes beautiful in appearance, and Is preferable in that the value as a

Further, as in the packaging apparatus according to the fourth aspect,
In the packaging device according to the third aspect, if a cutting device that cuts a portion above the thermally welded portion of the film sheet is provided at an upper end of the thermal welding means, the packaging method according to the second aspect can be performed. Becomes

Further, as in the packaging apparatus according to the fifth aspect, in the packaging apparatus according to the fourth aspect, the same configuration as that of the edge collecting means is used to operate synchronously and in the same direction above the cutting apparatus. When the edge collecting means are arranged side by side, heat welding can be performed in a state where the gathering of the film sheets is more reliably performed, so that the packaging method according to claim 2 can be more reliably performed. .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method and an apparatus for packing mycelial food according to an embodiment of the present invention will be described below with reference to the drawings.

First, the structure of the packaging apparatus will be described with reference to the drawings. In FIG.
As shown in FIG. 2A, the edge collecting mechanism 1
It is composed of a pair of assembled pieces 1A and 1B each having a substantially semicircular concave portion 1a at the tip and a rectangular concave portion 1b at the center of the concave portion. The aggregated piece 1A and the aggregated piece 1B are configured to be displaced vertically by the thickness of the plate, that is, to move close to and away from each other in a sliding state as indicated by arrows in the figure. Therefore, an opening 1C whose opening area is changed by the concave portion 1a and the concave portion 1b is formed between the aggregated piece 1A and the aggregated piece 1B based on the approach / separation operation.

As shown in FIG. 1B, two pairs of the set pieces 1A and 1B are provided vertically facing each other, and these set pieces 1A and 1B are synchronously moved in the same direction. Are configured to perform the same operation.

Further, in the case of this embodiment, as shown in a skeleton diagram in FIG.
1B is configured such that the aggregated piece 1A and the aggregated piece 1B are opposed to each other, close to each other, and separated from each other by a link mechanism. The approach / separation operation can be performed by another direct-acting cylinder or screw mechanism.

As shown by a two-dot chain line in FIG. 1 (b), an opening 7A for mounting the film sheet F is located above the edge collecting mechanism 1 as shown in FIG. Is provided. The opening 7A and the opening 1C of the edge collecting mechanism 1 coincide with each other in position, and the size of the opening 7A is equal to the size when the opening 1C is the largest. It is configured.

Further, the above-mentioned assembly pieces 1 arranged vertically
As shown in FIG. 1 (d), a heat welding mechanism 2 having a high temperature portion 2B as a heat welding means at a tip thereof and a film sandwiched thereabove at a middle position in the vertical direction between A and 1B. Each pair of film pressing devices 3 is provided, and between the heat welding mechanism 2 and the film pressing device 3, cutting teeth 4 each having a saw-toothed tip as shown in FIG.
A cutting mechanism 4 provided with A is provided.

The heat welding mechanism 2 and the film pressing device 3 are, as shown in FIG. 3 or FIG.
A high-temperature portion 2B or a pressing portion 3B is configured to approach and separate from right and left on a guide shaft 2A or 3A extending in the same direction as A and 1B. Then, the pressing portion 3
B, as shown in FIG. 3, are configured to be pressed together via a spring 3C. That is, when the left and right pressing portions 3B come into contact with each other, they are pressed by the elastic force of the spring 3C. Therefore, when the film sheet F is interposed between the left and right pressing portions 3B, the film sheet F is subjected to the spring force. The high-temperature portion 2B of the heat welding device 2 below
Thus, the edge of the film sheet F can be thermally welded. An electric heater (not shown) is built in the high-temperature portion 2B, and the surfaces of the high-temperature portions 2B that come into contact with each other (actually via the film sheet F) are 150 to 1.
The temperature is set to about 55 ° C. But,
This temperature is changed according to the type of the film sheet, the thickness of the film to be heat-welded, or the speed of the heat-welding treatment (processing time). For example, in this example,
The film sheet is called a functional film for maintaining various freshness, and is made of about 15μ polystyrene called “OPS” (trade name of Asahi Kasei Kogyo Co., Ltd.) or “Sun Orient AF” (trade name of Sansho Nimura) Use what is called about 15μ made of polypropylene,
The processing speed and the tact time of each packaging are 10 times / minute, and the time required for heat welding is about 1 second. Therefore, in order to further increase the processing speed, the temperature needs to be higher than 155 ° C.

The cutting teeth 4A of the cutting mechanism 4 are
As shown in FIG. 4, the guide shaft 2 of the heat welding device 2 is used.
A on the guide shaft 4B arranged in parallel with
It is configured to be movable in the same direction as
At the time when the heat welding of the heat welding device 2 is completed, and in a state where the high temperature portion 2B and the pressing portion 3B are sandwiching the film sheet F from the left and right, the upper end of the welded portion is cut.

In the case of this embodiment, although not shown, the proximity of the heat welding device 2 and the pressing device 3 to each other is described.
The separating operation and the movement of the cutting teeth 4A of the cutting device 4 are performed by the same link mechanism as in the case of the above-mentioned aggregate pieces 1A and 1B.
It is configured to be performed by a timing operation based on a mechanical configuration. As shown in FIGS. 1 (b) to 1 (f), a tray 5 is provided below the opening 1C (see FIG. 2) between the left and right collecting pieces 1A and 1B so as to be able to move up and down. Have been. As shown in FIG. 2 (a), the tray 5 is formed of a "soko" (slanter) shape, and although not shown, when the tray 5 is located at the lowest position,
A slanted surface consisting of a lattice in the shape of a "ko-no-ko" that can be inserted between the ko-no-ko is formed, and the packaged mycelial food is discharged to the outside of the device.

As shown in FIGS. 1 (a) and 1 (b), a supply mechanism 6 for automatically supplying a film sheet F is provided at the top of the packaging apparatus. As shown in FIG. 1 (a), the supply mechanism 6 holds one end of a roll-shaped film sheet F rotatably disposed at one end of the present apparatus by a holding portion 6A for loading a film sheet. Then, as shown in FIG.
The film sheet F operates so as to cover the opening 1C formed between A and 1B. Then, in that state, FIG.
As shown in (b), the cutter 6B located to the left of the opening 1C of the assembly pieces 1A and 1B descends to cut the film sheet F into a predetermined length.

Thus, the present packaging apparatus configured as described above can package mycelial food as follows. Hereinafter, the packaging method according to the present invention will be described together with the operation of the packaging device.

That is, as shown in FIG. 8A, which is conceptually shown in FIGS. 1A and 1B, the roll-shaped film sheet F is held by the holding portion 6A of the film sheet mounting table 7. After being pulled out so as to cover the opening 7A and the opening 1C of the assembly pieces 1A, 1B, the cutter 6B cuts the film sheet F into a predetermined length. In this state, the mycelium food G is supplied to the opening 1C by hand or by a mycelium food supply device (not shown) as schematically shown in FIG. 8B. Then, FIG. 1 (c) or FIG.
As shown in (c), the center of the film sheet F sinks downward from the opening 1C due to the weight of the mycelial food G, and the opening 1C.
The mycelium food G is held via the film sheet F by the tray 5 located below C.

When the mycelial food G is supported by the tray 5 from below, the tray 5 is configured such that the edge (peripheral edge) of the film sheet F extends upward from the opening 1C as shown in FIG. It will be in the state of protruding.

Next, the pieces 1A, 1
B operate so as to be close to each other, that is, the recesses 1a,
As a result of reducing the size of the opening 1C by approaching in the direction in which the area 1b narrows, the edges of the film sheet F are gathered from the periphery as shown in FIG.

Next, the pressing device 3 and the heat welding device 2 are simultaneously operated, so that the left and right pressing portions 3B of the pressing device 3 and the left and right high temperature portions 2B of the heat welding device 2 are close to each other at the center,
As shown in FIG. 1 (e) or conceptually FIG. 8 (d), the periphery of the film sheet F whose periphery is held by the openings 7 </ b> A and 1 </ b> C is heated by the heat of the high temperature section 2 </ b> B. Following this heat welding, as shown in FIG. 1 (f) or conceptually shown in FIG. 8 (e), the cutting teeth 4A of the cutting device 4 cut the heat-welded upper end portion.

In the state where the packaging of the mycelial food G is completed in this way, the welded portion of the film sheet F is substantially sealed, that is, a hole having an extremely small cross-sectional area (a vent hole having a cross-sectional area smaller than a pinhole). Is formed.

As a result, the mycelial food G can be breathed even if it is packaged with a film sheet, and since it is substantially sealed, the generation of mycelia can be prevented as much as possible. Further, by using a film sheet as in the present embodiment in which the chemical substance for suppressing the formation of the hypha is applied to the inner surface of the film sheet, the generation of the hypha can be further prevented.

The packaged mycelial food is discharged from the tray 5 to the outside of the apparatus via the above-described inclined surface.

Further, at a position immediately above the set 1A of the edge collecting mechanism, a scrap removing bracket 8 as shown in FIG.
When the set 1A retreats (separation operation; see the direction of the arrow in FIG. 7), the metal piece 8 moves the scraps (dust) R of the cut film sheet to a position below the apparatus. It is configured to be scraped off.

In FIG. 8, reference numeral 9 denotes "registration marks" marked on the film sheet F at regular intervals.
The registration mark is read by a reading device such as a photoelectric tube, supplied by a predetermined size, and sheared by the cutter 6B.

[0033]

According to the method and the apparatus for packaging mycelial food of the present invention, the commercial value of mycelial food can be maintained as long as possible.

Further, according to the present packaging apparatus, it is possible to implement packaging having the above-described excellent functions with a relatively simple configuration.

[Brief description of the drawings]

FIG. 1 is a diagram showing a series of steps of a packaging method according to an embodiment of the present invention and a configuration of a packaging apparatus related to each step.

FIG. 2A is a perspective view showing a configuration of a pair of pieces of an edge collecting device, and FIG. 2B is a skeleton diagram showing a configuration of a driving mechanism.

FIG. 3 is a perspective view showing a schematic configuration of a pressing device for pressing and holding the film sheet shown in FIG. 1;

FIG. 4 is a perspective view showing a schematic configuration of the cutting apparatus shown in FIG.

FIG. 5 is a perspective view showing a schematic configuration of the heat welding apparatus shown in FIG. 1;

FIG. 6 is a perspective view showing the film sheet mounting table shown in FIG.

FIG. 7 is a perspective view showing a configuration of a scrap removing bracket for paying out scraps of the cut film sheet.

FIG. 8 is a perspective view conceptually showing each step of the packaging method according to the embodiment of the present invention.

[Explanation of symbols]

 F: film sheet 1: edge collecting mechanism (edge collecting means) 1C: opening 2: heat welding device (heat welding means) 5: receiving tray

Claims (5)

[Claims] 1. A film sheet to be wrapped is placed on the edge collecting means having an open center, a saucer is placed immediately below the film sheet, and a mycelial food is placed on the open upper film sheet. After placing the mycelia food in the film sheet with its weight, the tray is lowered relative to the edge collecting means, and the center opening of the edge collecting means is narrowed to form a film. A mycelium, wherein the sheets are gathered from the periphery as far as the film sheet is not damaged, and the edges of the film sheet gathered from the periphery are thermally welded above the edge gathering means. How to package similar foods. 2. The packaging method according to claim 1, wherein a portion above the heat-welded portion is cut by a cutter. 3. A film sheet in which a film sheet is positioned at an upper position, and is moved downward by placing a mycelial food in a close state after being placed in a central position in a state in which the mycelial food can pass through in an initially separated state. A pair of edge collecting means that change into an opening of a size that can be squeezed so as to be as small as possible without damaging the upper part of the mycelium, and a mycelial food is placed below the edge collecting means. And a tray for holding the bottom of the film sheet moved below the opening of the edge collecting means, and at least the edge of the narrowed film sheet positioned vertically adjacent to the edge collecting means. A heat-sealing means having a pair of high-temperature portions at the front end having a width equal to or larger than the dimension at the front end and heat-sealing the edges of the film sheet gathered from the periphery by the edge collecting means from both sides. Features and Packaging equipment. 4. The packaging apparatus according to claim 3, wherein a cutting device for cutting an upper end of the heat-sealed portion of the film sheet is provided above the heat-welding means. 5. The edge collecting means having the same configuration as the edge collecting means and operating in the same direction in synchronization with the edge collecting means is arranged in parallel above the cutting device. Packaging equipment.