JP2012140143A - Method and apparatus for packing food and food packing body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mass-produce food packing bodies in a short time.SOLUTION: A plurality of placing sheets 1 are sequentially conveyed along a conveyer lane 30 at every predetermined interval, and when each of the placing sheets 1 being conveyed reaches a predetermined position on the conveyer lane 30, a food F is placed on the approximate center of each of the placing sheets 1. Then, a strip film 20 is sent out along the conveyer lane 30 on a downstream side of a placed position of the food F and stacks on each of the placing sheets 1 being conveyed so as to sandwich the food F. Then, in the strip film 20, a part to be a circumferential part 2a of a coating film 2 is pressed to bond to a peripheral part 1a arranged on each of the placing sheets 1 so as to surround the placed position of the food F, and the coating film 2 is stamped out and separated from the strip film 20. Therefore, food packing bodies B are continuously produced in a sequential flow work.

Description

  The present invention relates to a food packaging method used for packaging food such as fish meat and vegetables, a food packaging device used directly for carrying out the method, and a food packaging produced using the method. .

Conventionally, as this type of food packaging method, there is a method of producing food packaging by placing food such as fish and meat on a synthetic resin tray such as foamed plastic and encapsulating with a transparent film. .
As an example, a film drawn manually from a film roll is wound around a tray on which a package such as meat or vegetables is placed, and the end of the wound film is wound around the bottom of the tray, and an adhesive plate The end of the film is adhered on the substrate (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 10-338215

However, in such a conventional food packaging method and food packaging apparatus, a film is drawn out for each tray by hand and encapsulated and the film ends are bonded, so that one food packaging is provided. There is a problem that it takes time and effort to produce the body, and the workability is inferior, and the food packaging cannot be mass-produced in a short time, and the cost cannot be reduced.
Moreover, in such a conventional food packaging body, since the side wall portion of the synthetic resin tray protrudes obliquely upward, there is a problem that the tray is bulky and compact garbage cannot be taken out at the time of disposal.
In addition, white plastic foam trays are recovered and recycled by the region, but it is troublesome to separate only the white tray from other colored trays and other waste and transport it to the resource recovery collection site. There was also a problem that it was troublesome.

  An object of the present invention is to provide a food packaging method and a food packaging apparatus capable of mass-producing food packaging in a short time, and to synthesize foamed plastics. An object of the present invention is to provide a food packaging body that can be packaged and sold without packaging a drip from the food without using a resin tray.

  In order to achieve such an object, a food packaging method according to the present invention provides a food sheet including a placing sheet on which food is placed and a transparent coating film provided with the food sandwiched between the placing sheets. A food packaging method for producing a package, wherein a plurality of the above-described placement sheets are sequentially conveyed at predetermined intervals along a transfer path, and the preceding placement sheet being conveyed reaches a predetermined position in the transfer path. Then, the food is placed substantially toward the center of the placement sheet, and a strip-like film serving as a raw material for the coating film is disposed along the transfer path on the downstream side of the transfer position of the food in the transfer path. Unwinding and stacking the food on the placing sheet being transported, and placing the food on the placing sheet on the preceding sheet that is being transported, the portion that becomes the outer peripheral portion of the coating film in the belt-like film With fixed by pressure contact against the peripheral edge portion which is arranged so as to surround the location, and wherein the separating by punching a portion which becomes the cover film from the film strip.

  Furthermore, the food packaging apparatus according to the present invention is a food packaging apparatus used in the implementation of the food packaging method, wherein the plurality of placement sheets are sequentially conveyed at predetermined intervals, and the transportation path Film supply means that is provided downstream of the food placement position and feeds the strip film as a raw material of the coating film along the transfer path, and in the fed strip film, the coating film Film adhering means for adhering the outer peripheral portion to the peripheral portion arranged so as to surround the loading position of the food on the placement sheet being conveyed, and the adhering belt-like film And a film punching means for punching and separating the portion to be the covering film.

  The food packaging body according to the present invention is a food packaging body produced by the food packaging method, wherein the main material of the placing sheet is composed of a nonwoven fabric.

In the food packaging method according to the present invention having the above-described features, a plurality of placement sheets are sequentially conveyed at predetermined intervals along the transfer path, and the loaded sheets arrive at a predetermined position on the transfer path. The food is placed toward the approximate center of the placing sheet, and then the belt-like film is drawn out along the transfer path downstream from the placing position of the food, and the food is placed on the placing sheet being conveyed, After that, the portion that becomes the outer peripheral portion of the covering film in the belt-like film is fixed by being brought into pressure contact with the peripheral portion arranged so as to surround the food placing position on the placing sheet, and the covering film is punched out from the belt-like film. By separating, since the food packaging body is continuously produced in a series of flow operations, the food packaging body can be mass-produced in a short time.
As a result, compared to conventional methods that require film to be pulled out for each tray by hand and encapsulated, and the film edges must be bonded, it is less labor-intensive to produce food packaging. The cost of the food packaging body can be reduced.

Furthermore, the food packaging apparatus according to the present invention having the above-described features is configured to transfer the belt-like film by the film supply means after the food is placed on each placement sheet sequentially conveyed at predetermined intervals on the transfer path. Roll out along the road, sandwich the food on the carrying sheet being transported, and then place the outer periphery of the coating film on the belt-like film with the film fixing means. The food packaging body is continuously formed in a series of flow operations by punching and separating the coating film from the belt-like film with a film punching means and then separating it by press-contacting to the peripheral portion arranged so as to surround. Since it is produced, food packaging bodies can be mass-produced in a short time with a simple structure.
As a result, the entire apparatus can be miniaturized, and a food packaging body can be produced even in a narrow space.

In addition, the food packaging body according to the present invention having the above-described features is constituted by the main material of the mounting sheet made of non-woven fabric, so that even if a drip comes out of the food, the mounting sheet laid under the food Since the nonwoven fabric as the main material absorbs drip, food can be packaged without using a synthetic resin tray such as foamed plastic and can be displayed and sold without drip from the food.
As a result, compared to conventional products that use a tray made of synthetic resin such as foamed plastic and whose side walls protrude diagonally upward, the mounting sheet and covering film made of nonwoven fabric are deformable and can be discarded without being bulky and compact. In addition to being able to take out trash, there is no need to separate it for collection of resources or to carry it to a collection place.
Further, since the drip from the food is accumulated and cannot be seen, the appearance of the food is not adversely affected and the product value can be prevented from being lowered.

It is a perspective view which shows the food packaging apparatus which concerns on embodiment of this invention. It is a perspective view which shows the food packaging body which concerns on embodiment of this invention, (a) has shown the decomposition | disassembly state, (b) has shown the completion state. It is a flowchart which shows the food packaging method which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The food packaging apparatus A according to the embodiment of the present invention is provided between the placing sheet 1 on which the food F is placed and the inner surface of the placing sheet 1 as shown in FIGS. In order to produce a food packaging body B provided with a transparent coating film 2 provided with food F sandwiched therebetween, a transport path 30 for conveying the mounting sheet 1, the food F, and the like is provided.

  The transfer path 30 has a substantially horizontal transfer surface 30a. As a specific example of the transfer surface 30a, a conveyor such as a belt conveyor and a roller conveyor as shown in FIG. 1 or other transfer means is used. The surface 30a is operated continuously, or the conveying surface 30a is operated intermittently.

A sheet supply unit 11 for supplying the loaded sheet 1 is provided at the upstream end in the transport direction of the transfer path 30.
As a specific example of the sheet supply means 11, the loaded sheets 1 having a predetermined shape are sequentially supplied to the upstream end of the transfer path 30, and a predetermined gap is provided between the loaded sheets 1 by the conveying surface 30 a. It is preferable to automatically control the operation so as to be sequentially conveyed toward the downstream side of the transfer path 30.

As the raw material of the mounting sheet 1, a non-woven fabric having an appropriate waist is used as the main material or all of it, for example, rayon or polyester, and it is particularly preferable to use a material excellent in shape retention.
Further, if necessary, the outer surface of the mounting sheet 1 is made of, for example, an olefin resin such as polyethylene (PE), polypropylene (PP), ethylene / methyl methacrylate copolymer (EMMA), or polyvinyl chloride (PVC). It is also possible to integrally laminate the barrier sheet by welding.

A food supply means (not shown) for supplying the food F toward the loading sheet 1 being conveyed is provided at an intermediate position in the conveyance direction of the transfer path 30, and the food F is placed on the loading sheet 1 by the food supply means. It is placed in the approximate center of.
As a specific example of the food supply means, a detector (not shown) such as an optical sensor for detecting the loaded sheet 1 being conveyed is arranged in the middle of the transfer path 30, and a detection signal output from the detector is displayed. It is preferable to automatically control so that a predetermined amount of food F is placed at a substantially central position on the inner surface of the loading sheet 1 during conveyance by automatically actuating a drive unit (not shown) based on the above. .
Although not shown in the drawings as another example, the operator can place a predetermined amount of food F at a substantially central position on the inner surface of the placing sheet 1 being conveyed without mechanizing the food supply means. is there.

  Furthermore, a film supply means 21 for feeding the strip-shaped film 20 serving as a raw material of the coating film 2 along the transfer path 30 to a position downstream of the food F in the transfer path 30 in the transport direction, A film fixing means 22 for pressing and fixing the portion that becomes the outer peripheral portion 2a of the covering film 2 in the fed strip-shaped film 20 to the mounting sheet 1 being conveyed, and the covering film 2 from the fixed strip-shaped film 20 Film punching means 23 is provided for punching out and separating the locations.

  Examples of the raw material for the covering film 2 and the belt-like film 20 include single layer products such as olefin resins such as polyethylene (PE), polypropylene (PP), and ethylene / methyl methacrylate copolymer (EMMA), or polyvinyl chloride (PVC), and the like. It is preferable to use a stretch film made of a laminate and having excellent stretchability.

The film supply means 21 includes a feeding roller for feeding the belt-like film 20 on which the coating film 2 is continuously wound in a roll shape toward the transfer path 30, and a winding for winding the belt-like film 20 fed out. It has a roller.
Either one of the feed roller or the take-up roller or both the feed roller and the take-up roller is provided with a drive unit (not shown). By the operation of the drive unit, the belt-like film 20 is connected to the transfer path 30. It is configured to extend substantially in parallel and to face the food F with the loading sheet 1 being conveyed.
In this state, when the food F having a certain height is sandwiched between the belt-shaped film 20 and the placement sheet 1, the peripheral edge disposed so as to surround the placement position of the food F on the placement sheet 1. In order to make the part which becomes the outer peripheral part 2a of the coating | coated film 2 in the strip | belt-shaped film 20 approach the part 1a, it is preferable to utilize the elasticity which the strip | belt-shaped film 20 has.
Further, as shown in FIG. 1, guide rollers 21 a made of, for example, tension rollers, which are in contact with at least both ends in the left-right width direction of the belt-like film 20 are disposed, and both ends in the left-right width direction of the belt-like film 20 are placed. It is preferable to be configured to be guided toward the peripheral edge 1a of the placing sheet 1.

The film adhering means 22 is formed in a frame shape facing the peripheral edge portion 1a of the carrying sheet 1 being conveyed, and means for moving the frame part 22a toward the belt-like film 20 and the carrying sheet 1 being conveyed (illustrated). No) is provided with a drive unit composed of an air cylinder, a hydraulic cylinder or other actuators.
Further, the film adhering means 22 moves the frame portion 22a toward the conveying surface 30a of the transfer path 30 by the operation of the driving unit, and the outer peripheral portion 2a of the covering film 2 in the belt-like film 20 between the conveying surface 30a. And the peripheral portion 1a of the placement sheet 1 are sandwiched with a predetermined pressure, and both of them are bonded by heat sealing or an adhesive. In particular, when the conveyance surface 30a is continuously operated, it is necessary to move the frame portion 22a in the same direction at the same speed as the movement speed of the conveyance surface 30a in the transfer path 30 simultaneously with the approaching movement.
When heat-sealing the outer peripheral part 2a of the covering film 2 and the peripheral part 1a of the placement sheet 1, the frame part 22a is constituted by a heat-sealing heater.
Further, when the outer peripheral portion 2 a of the covering film 2 and the peripheral portion 1 a of the mounting sheet 1 are bonded with an adhesive, the adhesive is provided between the outer peripheral portion 2 a of the covering film 2 and the peripheral portion 1 a of the mounting sheet 1. Means are provided for filling.

The film punching means 23 is provided integrally with the film fixing means 22 or separately, and a fusing heater, a cutter, etc. for cutting the outer periphery of the fixing portion of the covering film 2 and the mounting sheet 1 by the film fixing means 22. Consists of.
When the film punching means 23 is a fusing heater, it is slightly protruded from the fusing heater of the film adhering means 22, and the outer periphery thereof is fused simultaneously with or after the heat sealing by the heater of the film adhering means 22. .
When the film punching means 23 is a cutter, the cutter is attached to the heat sealing heater of the film fixing means 22 so as to be movable in and out, and after the heat sealing by the heater of the film fixing means 22, the heater is protruded and cut.

And the film supply means 21, the film adhering means 22, and the film punching means 23 sense the loaded sheet 1 being conveyed by a detector (not shown) such as an optical sensor, as in the specific example of the food supply means described above. It is preferable to automatically control the operation based on the sensing signal output therefrom.
Although not shown as another example, the film supply means 21, the film fixing means 22 and the film punching means 23 are operated synchronously based on the operator's operation, or the film supply means 21 based on the operator's operation. The film adhering means 22 and the film punching means 23 can be operated individually.

  And the food packaging method for producing the food packaging body B by the food packaging apparatus A according to the embodiment of the present invention includes a plurality of placement sheets along the transfer path 30 as shown in the flowchart of FIG. A sheet conveying process for sequentially conveying 1 at predetermined intervals, a food placing process for placing the food F toward the approximate center of the carrying sheet 1 being conveyed, and a belt-like film 20 serving as a raw material for the coating film 2 A film supply step of extending along the path 30 and sandwiching the food F on the mounting sheet 1 being transported, and a place to be the outer peripheral portion 2a of the covering film 2 in the belt-shaped film 20, the mounting sheet 1 being transported And the film fixing step for pressing and fixing the peripheral portion 1a arranged so as to surround the mounting position of the food F, and the portion that becomes the coating film 2 is punched and separated from the belt-like film 20 It contains Irumu punching process.

According to the food packaging method and the food packaging apparatus A according to the embodiment of the present invention, first, the plurality of placement sheets 1 are sequentially conveyed at predetermined intervals along the substantially horizontal conveyance surface 30a of the transfer path 30. Then, when the placed sheet 1 being conveyed reaches a predetermined position on the transfer path 30, the food F is placed toward the approximate center of the placed sheet 1 by the food supply means or the operator.
Following this, on the downstream side of the food F loading position, the film supply means 21 feeds the belt-like film 20 that is the raw material of the coating film 2 along the transfer path 30, and the loading sheet 1 being conveyed. The food F is placed on top of each other.

Thereafter, the film fixing means 22 presses the portion that becomes the outer peripheral portion 2a of the covering film 2 in the belt-like film 20 against the peripheral portion 1a that is disposed so as to surround the placement position of the food F on the placement sheet 1. And stick.
Under the present circumstances, if the location used as the outer peripheral part 2a of the coating film 2 and the peripheral part 1a of the mounting sheet 1 are adhere | attached with a heat seal, an adhesive agent, etc., both will be sealed and food F will be interrupted | blocked with external air.
Furthermore, when a stretch film is used as a raw material for the covering film 2 and the belt-like film 20, even if the food F is raised with a certain height, the stretch film is stretched to compress the food F. Can be packaged without deformation.

Thereafter, the coating film 2 is punched and separated from the strip film 20 by the film punching means 23.
Thereafter, the above-described operation is repeated.
Thereby, the food packaging body B is continuously produced in a series of flow operations.
Therefore, the food packaging method according to the embodiment of the present invention can mass-produce food packaging B in a short time.
Furthermore, the food packaging apparatus A according to the embodiment of the present invention can mass-produce the food packaging body B in a short time with a simple structure.

  Moreover, as shown in FIG. 2 (a) (b), the food packaging body B which concerns on embodiment of this invention comprises the main material of the mounting sheet 1 with a nonwoven fabric, and the main material of the mounting sheet 1 and It is preferable to laminate | stack the shielding sheet 1b on the outer surface of the nonwoven fabric which becomes.

According to such a food packaging body B, the main material of the mounting sheet 1 is composed of a nonwoven fabric, and therefore has an appropriate waist and is excellent in the shape retention of the food F. Furthermore, even if the food F has a possibility that a drip such as fish meat may ooze out, the non-woven fabric which is the main material of the placing sheet 1 absorbs the drip from the food F, and the blocking sheet 1b. Does not penetrate to the outside.
Thereby, the leakage of the drip from the placement sheet 1 can be prevented.
Therefore, food F can be packaged without using a synthetic resin tray such as foamed plastic, and can be displayed and sold without drip from the food F accumulating.
In particular, when the blocking sheet 1b is laminated on the outer surface of the nonwoven fabric that is the main material of the placement sheet 1, the drip from the food F is absorbed even if the nonwoven fabric that is the main material of the placement sheet 1 absorbs the drip. The sheet 1b does not transmit to the outside.
Thereby, the leakage of the drip from the placement sheet 1 can be prevented.
As a result, the leaking out of the drip does not contaminate the thing in contact with it, and can also prevent the drip odor from leaking out.
In addition, although not shown as another example, in the case where the food F dislikes hermetic packaging such as vegetables, for example, the mounting sheet 1 (including the blocking sheet 1b when the blocking sheet 1b is stacked) Alternatively, a plurality of air holes are penetrated and opened in either one of the covering film 2 or both the mounting sheet 1 (including the blocking sheet 1b when the blocking sheet 1b is laminated) and the covering film 2. Is also possible.
Next, an embodiment of the present invention will be described with reference to the drawings.

  In this embodiment, as shown in FIG. 1, as a sheet supply unit 11, a belt-like sheet 10 that is a raw material of the placed sheet 1 is fed out to the upstream end in the transport direction of the transfer path 30, and the belt-like sheet 10 is dimensioned by a predetermined length. It is separated into a plurality of placement sheets 1 by cutting into two.

In the example shown in FIG. 1, the belt-like sheet 10 is fed toward the transport surface 30 a of the transfer path 30 substantially in parallel with the belt-like sheet 10, and is cut into a predetermined length by the cutter 11 a, thereby separating the smooth placement sheet 1. At the same time, the separated smooth placement sheet 1 is placed on the upstream end of the transfer path 30, and a predetermined gap is left between the separated placement sheets 1 to the downstream side of the transfer path 30 by the transport surface 30a. The operation is automatically controlled so that it is conveyed sequentially.
Although not shown in the drawings as another example, the placement sheets 1 cut in advance into a predetermined shape are sequentially supplied to the upstream end of the transfer path 30 one by one, and a predetermined gap is provided between the placement sheets 1. It is also possible to automatically control the operation so that the sheet is sequentially conveyed toward the downstream side of the transfer path 30 by the conveying surface 30a in the vacant state.

Further, in the example shown in FIG. 1, as the film fixing means 22, the outer peripheral portion 2 a of the covering film 2 is heat-sealed to the peripheral edge portion 1 a of the carrying sheet 1 being conveyed, thereby fixing both of them.
That is, the frame portion 22a of the film fixing means 22 is constituted by a heat sealing heater.
Although not shown as another example, as the film fixing means 22, the outer peripheral portion 2 a of the covering film 2 and the peripheral portion 1 a of the placing sheet 1 can be bonded with an adhesive.
In the example shown in FIG. 1, the film adhering means 22 and the film punching means 23 are integrated, but the film adhering means 22 and the film punching means 23 are separated from each other or opposed to a plurality of loaded sheets 1 to be conveyed. A plurality of sets of film fixing means 22 and film punching means 23 can be arranged.
Furthermore, in the example shown in FIG. 1, a plurality of placement sheets 1 are arranged on the conveyance surface 30 a of the transfer path 30 in the sheet conveyance process and the film supply process, respectively. It is also possible to arrange the placement sheets 1 one by one and shorten them in the transport direction of the transfer path 30.

According to the food packaging method and the food packaging apparatus A according to the embodiment of the present invention, by cutting the fed belt-like sheet 10 into a predetermined length, it is separated into a plurality of placement sheets 1, and Is conveyed with a predetermined gap left between them.
Thereby, there is an advantage that the placement sheet 1 can be automatically set in the transfer path 30.
As a result, labor saving can be achieved, the number of workers can be reduced, and the cost of the food packaging body B can be further reduced.

Further, when the outer peripheral portion 2 a of the covering film 2 is heat-sealed with respect to the peripheral portion 1 a of the placing sheet 1, the food F is accommodated between the placing sheet 1 and the covering film 2 in an airtight manner.
Thereby, there exists an advantage that the foodstuff F can be packed without gap.
As a result, the food F can be packed easily and reliably.

  In addition, when the placed sheets 1 are arranged one by one on the transport surface 30a of the transport path 30 in the sheet transport process and the film supply process and shortened in the transport direction of the transport path 30, the food packaging apparatus A The whole can be made more compact and can be installed even in a narrow work space. Further, by intermittently operating the transport surface 30a of the transfer path 30, there is also an advantage that the packaging operation is simplified and the operation is easy.

In the previous embodiment, the sheet supply means 11 feeds the belt-like sheet 10 as the raw material of the loaded sheet 1 to the upstream end in the transport direction of the transfer path 30 and cuts the belt-like sheet 10 into a predetermined length. However, the present invention is not limited to this, and the sheet supply unit 11 is not mechanized, and the placement sheet 1 cut in advance by the operator on the conveyance surface 30a of the transfer path 30 is not limited thereto. In addition, the sheets may be placed so that a predetermined gap is opened between the placement sheets 1.
Furthermore, the shape of the mounting sheet 1 is not limited to a smooth one as shown in the drawings, and can be molded into a tray shape as long as it can be dismantled in a smooth manner by a simple manual operation. Moreover, it is also possible to prevent the food F from being crushed or deformed by wrapping a frame material, a support or the like together with the food F between the placing sheet 1 and the covering film 2 as necessary.

DESCRIPTION OF SYMBOLS A Food packaging apparatus B Food packaging body 1 Loading sheet 1a Peripheral part 1b Blocking sheet 10 Band-shaped sheet 2 Cover film 2a Outer peripheral part 20 Band-shaped film 21 Film supply means 22 Film fixing means 23 Film punching means 30 Transfer path F Food

Claims (6)

A food packaging method for producing a food packaging body comprising a placing sheet on which food is placed and a transparent coating film provided with the food sandwiched between the placing sheets,
A plurality of the above-described placement sheets are sequentially conveyed at predetermined intervals along the transfer path,
When the placing sheet reaches the predetermined position of the transfer path, the food is placed toward the approximate center of the placing sheet,
A strip-like film serving as a raw material for the coating film is drawn out along the transfer path on the downstream side of the food placement position in the transfer path, and the food is sandwiched and stacked on the above-described transfer sheet being conveyed. ,
In the belt-like film, the portion that becomes the outer peripheral portion of the coating film is fixed by being brought into pressure contact with a peripheral portion that is arranged so as to surround the placement position of the food in the placing sheet that is being transported, and the belt-like film A food packaging method comprising: punching out and separating the portion to be the coating film.   A strip-shaped sheet as a raw material for the mounting sheet is fed out to an upstream end of the transfer path, and the strip-shaped sheet is separated into a plurality of the mounting sheets by cutting into a predetermined length. The food packaging method according to 1.   The food packaging method according to claim 1 or 2, wherein the outer peripheral portion of the covering film is heat-sealed with respect to the peripheral portion of the placing sheet. A food packaging device used for carrying out the food packaging method according to claim 1, 2, or 3,
The transfer path for sequentially conveying a plurality of the placement sheets at predetermined intervals, and
Film supply means provided on the downstream side of the food placement position in the transfer path, and for feeding out the belt-like film as a raw material of the coating film along the transfer path;
In the unrolled strip-shaped film, the portion that becomes the outer peripheral portion of the covering film is brought into pressure contact with the peripheral portion that is disposed so as to surround the placement position of the food in the placement sheet that is being conveyed, and is fixed. Film fixing means for
A food packaging apparatus comprising: a film punching means for punching and separating a portion to be the covering film from the fixed band-like film. A food packaging produced by the food packaging method according to claim 1, 2, or 3,
A food packaging body, wherein the main material of the placing sheet is a non-woven fabric.   6. The food packaging body according to claim 5, wherein a blocking sheet is laminated on the outer surface of the nonwoven fabric which is the main material of the placing sheet.

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