JPH11321807A - Wrapping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wrapping device in which a packaging film can be handled without producing any defects at an item in a container when the packaging film is applied to cover an opening of the container and when a peripheral part of the packaging film extruded out of the opening is adhered to an outer surface of the container, and the peripheral part of the packaging film extruded out of the opening can be positively adhered to the outer surface even if the outer surface of the container is inclined. SOLUTION: This wrapping device comprises a packaging film holding means 40 for holding a packaging film 10a having a predetermined larger size than that of an opening of a container 32 to a peripheral part along with its adhering characteristic or adhesive agent while the packaging film is being spread; packaging film covering means 30, 34 and 36 for applying the packaging film held by the packaging film holding means 40 to cover the opening of the container 32; and packaging film adhering means 38, 40c for pressing the peripheral part of the packaging film extruded out of the opening of the container 32 toward the outer surface of the container 32 and adhering the portion extruded out of the opening of the container 32 to the outer surface of the container 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wrapping device for covering an opening of a container with a packaging film having an adhesive or an adhesive at least on a peripheral portion thereof and attaching the peripheral portion of the packaging film to an outer surface of the container. ing.

[0002]

2. Description of the Related Art Covering the opening of a container with a packaging film having an adhesive or an adhesive at least on the peripheral portion and attaching the peripheral portion of the packaging film to the outer surface of the container is, for example, such as meat, fish, vegetables and fruits. Often done in the field of fresh food. This is to protect the fresh food from damage and to keep it clean, and to efficiently distribute fresh food of irregular dimensions. Those that are leached with meat juice, such as meat or fish, are held in a container by an expandable packaging film and sealed, and vegetables and fruits that need to be breathed to ensure freshness do not substantially expand. The film prevents the opening of the container from protruding from the opening without being sealed in the container.

[0003]

Conventionally, the operation of covering the opening of a container with a packaging film that does not substantially expand and attaching the packaging film to the outer surface of the container has been performed manually. This is because, if a great force is applied to fresh foods such as vegetables and fruits during this operation, especially if fruits such as strawberries and grapes with soft skin are added, the fresh foods are likely to be damaged. This is because it is difficult for the machine to cover the opening of the container without applying great force to the fresh food using a packaging film that does not cause any stretching. In addition, these containers are usually used as the outer surface of the container becomes farther from the periphery of the opening of the container, so that the container can be stacked in close contact with each other when the container is not used and the space required for storage and transportation of the container is reduced. This is because the operation of attaching the portion of the packaging film that is inclined toward the inside of the periphery of the opening and that protrudes from the opening in the packaging film covering the opening to the inclined outer surface of the container is complicated.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to cover the opening of a container for accommodating a perishable object such as, for example, fresh food, with a substantially non-stretchable packaging film, and substantially. Handling a packaging film that does not substantially stretch without applying a large force to the object even when attaching a portion of the non-stretching packaging film that protrudes from the opening of the container to the outer surface of the container without causing damage. It is an object of the present invention to provide a wrapping device capable of reliably attaching a packaging film which does not substantially expand on the outer surface of the container even if the outer surface of the container is inclined.

[0005]

In order to achieve the above-mentioned object of the present invention, a wrapping device according to the present invention for covering an opening of a container with a wrapping film and attaching the wrapping film to an outer surface of the container comprises at least a peripheral device. A packaging film holding means for holding a packaging film having a predetermined size larger than the opening of the container with an adhesive or an adhesive in a portion in an expanded state, and a packaging film held by the packaging film holding means. Packaging film covering means for covering the opening of the container, packaging film attaching means for pressing the peripheral portion of the packaging film protruding from the container opening toward the outer surface of the container and attaching the peripheral portion of the packaging film to the outer surface of the container, And the packaging film is held by the packaging film holding means after the peripheral portion of the packaging film is attached to the outer surface of the container. Lifting is eliminated, it is characterized in that.

[0006] In the wrapping apparatus according to the present invention having the above-described configuration, the packaging film having the adhesive property or the adhesive agent at least at the peripheral portion is held in a spread state by the packaging film holding means. Then, the packaging film covering means is placed over the opening of the container by the packaging film covering means, and then the packaging film attaching means presses the peripheral portion of the packaging film protruding from the opening of the container toward the outer surface of the container, and the peripheral portion of the packaging film is placed outside the container. After the peripheral portion of the packaging film is attached to the outer surface of the container, the holding of the packaging film by the packaging film holding means is canceled, so that the container remains stationary even if the outer surface of the container is inclined. The opening of the container can be covered as it is, and can be securely attached to the outer surface of the container. Here,
For example, when covering the opening of a container for accommodating a perishable object such as fresh food with the packaging film, the packaging film is spread around the opening of the container and the exposed portion of the object in this opening by the packaging film holding means. The packaging film covers the opening of the container accommodating the perishable object, so that the object is not damaged when the packaging film is covered, and the packaging film attaching means protrudes from the opening of the container. By precisely controlling the distance by which is pressed toward the outer surface of the container, no damage is caused to the object even when the peripheral portion of the packaging film that protrudes from the opening of the container is attached to the outer surface of the container.

[0007] In the wrapping apparatus according to the present invention, which is configured as described above, the above-described operation can be performed even if the wrapping film does not substantially stretch. I can do it.

[0008] In the wrapping device according to the present invention having the above-mentioned structure, it is preferable that the packaging film attaching means includes a buffering means which acts upon the pressing.

With such a configuration, when the packaging film attaching means presses the peripheral portion of the packaging film protruding from the opening of the container toward the outer surface of the container and attaches it to the outer surface of the container, the object is damaged. The probability can be further reduced.

In the wrapping apparatus according to the present invention, which is constructed as described above, the power of each of the wrapping apparatus, the wrapping film holding means, the wrapping film covering means, and the wrapping film attaching means is provided. Preferably, compressed air is used as the source.

With such a configuration, the maintenance and management of the power source is easy, and the power source does not contaminate the container or the object contained in the container. This is particularly important when the object is a food product, especially a fresh food product.

[0012] In the wrapping device according to the present invention having the above-described structure, the packaging film holding means includes a plurality of holding members for holding the peripheral portion of the packaging film having a predetermined size. The packaging film attaching unit lowers the plurality of holding members of the packaging film holding unit relatively than the container opening after the packaging film held by the packaging film holding unit is covered by the packaging film covering unit over the opening of the container. Further, it is preferable that the peripheral portion of the packaging film protruding from the opening of the container is attached to the outer surface of the container by moving the container toward the outer surface of the container.

With this configuration, the packaging film holding means can securely hold the packaging film of a predetermined size in a spread state by using a plurality of holding members. The packaging film in a state where it is spread by the packaging film holding means around the opening of the container and the exposed portion of the object in this opening by being covered by the packaging film covering means with the packaging film spread between the openings of the container. Only when the packaging film covers the opening of the container accommodating the perishable object, the object is not damaged.

Further, the plurality of holding members of the packaging film holding means can easily release the holding of the packaging film after the peripheral portion of the packaging film which protrudes from the opening of the container is attached to the outer surface of the container by the packaging film attaching means. You can do it.

The plurality of holding members of the packaging film holding means are inclined so as to approach each other as they go downward on two opposite sides of the periphery of the packaging film held by the packaging film holding means. The film adhering means includes a pressing force load projection extending along the two sides above the two holding members on the two sides and projecting inward from the plurality of holding members on the two sides with the two sides therebetween. It is preferable to configure so as to include.

Such a combination of the plurality of holding members and the pressing force load projections has a simple combination structure and facilitates the operation of attaching the peripheral portion of the packaging film protruding from the opening of the container to the outer surface of the container. And ensure.

In the wrapping apparatus according to the present invention, the wrapping film has a long shape in which a weakening line is formed at every predetermined length. The predetermined size is pulled out from the long-shaped packaging film by being held by the film holding means and covered with the opening of the container by the packaging film covering means, and is separated from the long-shaped packaging film at the weakening line. Preferably.

By using such a packaging film, it becomes easy to supply the packaging film to the wrapping device according to the present invention, and it is also easy to store unused packaging film.

The packaging film used in the wrapping device according to the present invention, characterized in that it is constructed as described above, can have its own material adherent or can be provided with a packaging film holding means. The peripheral portion protruding from the opening of the container when held and put on the opening of the container by the packaging film covering means may be accompanied by an adhesive such as an adhesive.

The wrapping device according to the present invention, characterized in that it is constructed as described above, is provided at a predetermined position where the packaging film held by the packaging film holding means is placed over the opening of the container by the packaging film covering means. Along with sequentially supplying containers that contain the opposite object,
It is preferable to include a container sequential supply / discharge unit that sequentially discharges the container having the opening covered with the packaging film by the packaging film covering unit at the predetermined position from the predetermined position.

Such a container sequential supply / discharge means improves the operation efficiency of the wrapping device according to the present invention,
Further, the labor required for operating the lapping device according to the present invention is reduced.

The container sequential supply / discharge means includes: a wrapping table having a comb-shaped planar shape and arranged at the predetermined position; and a wrapping table having a comb-shaped planar shape and spaced apart from the predetermined position. A container supply table on which a container storing an object is placed; and a packaging film having a comb-like planar shape and spaced from the predetermined position on the opposite side to the container supply table, at the predetermined position. A container discharge table on which the container with the packaging film covered on the opening by the covering means is placed; and a front end having a comb-like planar shape and a rear end having a comb-like planar shape. The front end is arranged above the wrapping table from the initial position where the front end is arranged below the wrapping table and the rear end is arranged below the container supply table, and the rear end is arranged above the container supply table. Latch the comb teeth at the tip to the upper position where As the comb teeth at the rear end pass through the gap between the comb teeth of the container supply table and the comb teeth at the rear end, the ascending rises. The container is advanced over the container supply table, the wrapping table, and the container discharge table to an advanced position in which the end is disposed above the wrapping table, and the front end is disposed below the container discharge table from the advanced position and the rear end. By passing the comb teeth at the front end through the gap between the comb teeth of the container discharge table and the comb teeth at the rear end through the gap between the comb teeth of the wrapping table to the lowering position arranged below the wrapping table. A moving platform that descends and finally retreats from the lowered position to the initial position, below the container supplying platform, the wrapping platform, and the container discharging platform.

In the container supplying / discharging means constructed as described above, the container accommodating the object placed on the container supply table is moved rearward from the initial position to the ascending position by moving the movable table up from the initial position. The movable table is lifted from the container supply table by the end, and the movable table is advanced from the raised position to the forward position, so that the rear end of the movable table is advanced from above the container supply table to above the wrapping table. By moving down from the advance position to the descending position, the rear end of the moving table is lowered from above the wrapping table to above the wrapping table, and the container placed on the wrapping table and covered with the packaging film in the opening is the moving table. Is lifted from the wrapping table by the front end of the moving table by rising from the initial position to the rising position, and the moving table advances from the rising position to the forward position. The front end of the moving table advances from above the wrapping table to above the container discharge table, and the moving table descends from the advanced position to the lowered position, so that the container is discharged from above the container discharge table by the front end of the moving table. It is lowered to the table. Hereinafter, a wrapping device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, FIGS.
The outline of the configuration of the wrapping device according to the embodiment of the present invention will be described with reference to FIG. 1 is a schematic side view of a wrapping device according to an embodiment of the present invention, FIG. 2 is a schematic front view of the wrapping device of FIG. 1, and FIG. FIG. 4A is a schematic plan view of a wrapping table, a container supply table, and a container discharge table of the container sequential supply / discharge means used in the wrapping device of FIG. 1, and FIG. 4A is used in the wrapping device of FIG. 1 is a plan view schematically showing a configuration of a packaging film.

As shown in FIG. 1, the wrapping device according to the embodiment of the present invention uses a long packaging film 10 wound in a cylindrical shape. The packaging film 10 is formed of a material which has flexibility but does not substantially expand.
A rotation center shaft 12 is inserted into the cylindrical long packaging film 10, and both ends of the rotation center shaft 12 are horizontally rotatably supported by a rear wall of a gate-shaped support frame 14 of the lapping device. I have. After the packaging film 10 pulled out substantially horizontally from the rotation center shaft 12 passes through the guide roller pair 16 of the support frame 14, the mounting table 18 a on the mounting arm 18 protruding forward from the front wall of the support frame 14. Is placed on top. Packaging film 10 on mounting table 18a
Of the mounting film 18a substantially coincides with the distal end of the mounting table 18a. Above the distal end of the packaging film 10, the pressing arm 20 protruding forward from the front wall of the support frame 14 above the mounting table 18a is pressurized with, for example, high-pressure air. A pressing member 24 supported via an up-down driving device 22 such as a piston / cylinder device utilizing the above-mentioned is disposed.

In this embodiment, the width of the mounting table 18a and the pressing member 22 along the width direction of the packaging film 10 on the mounting table 18a are, as shown in FIG.
The width of the outer side of the mounting table 18a and the pressing member 24 is shorter than the width of the mounting film 18a and the pressing member 24 in the width direction. It protrudes outward from both ends in the width direction.

As shown in FIG. 4A, a plurality of weakening lines 26 extending in the width direction are formed at a plurality of positions at predetermined intervals along the longitudinal direction of the long packaging film 10. ing. In this embodiment, a plurality of weakening lines 26
Are formed, for example, by a number of cuts formed at predetermined intervals in the width direction. In each of the plurality of packaging film pieces 10a separated by the plurality of weakening lines 26 in the packaging film 10, a detection mark 28 is marked near the weakening line 26 on the cylindrical packaging film 10 side. Each of the plurality of packaging film pieces 10a also has an adhesive 10
b. In this embodiment, the adhesive 1
Although 0b has an elongated shape extending a predetermined length in the longitudinal direction of the packaging film 10, a plurality of Ob may be arranged apart from each other in a range of the predetermined length in the longitudinal direction.

The detecting means 29 for detecting the respective detecting marks 28 of the plurality of packaging film pieces 10a is provided at the base end of the pressing arm 20 as shown in FIG. Reference numeral 29 denotes an optical type, which is connected to a control circuit (not shown) of the wrapping device of this embodiment. The detecting means 29 is mounted on the mounting table 18a while the control circuit (not shown) of the wrapping device of this embodiment is operated.
It operates to detect the presence of the packaging film piece 10a on the upper side, and when the detection mark 28 cannot be detected for a predetermined time or longer, a known not-shown, for example, using light or sound connected to the above-described control circuit not shown. An alarm is given through the alarm means that the packaging film 10 has been lost, and the control circuit (not shown) stops the lapping operation in the wrapping device of this embodiment.

As shown in FIG. 1, a wrapping table 30 extending forward from the mounting table 18a is disposed below the mounting table 18a.
The wrapping table support means movably supports the wrapping table 30 below the mounting table 18a within a predetermined range in the vertical direction, and urges the wrapping table 30 toward the upper position by urging means such as a compression spring. 31 are installed.

The front end of the wrapping table 30 is located at a predetermined distance from the front end of the wrapping table 30 on the mounting base 18a on both sides (hereinafter referred to as left and right) of the wrapping table 30 on the mounting table 18a. The container supply table 32 and the container discharge table 34 are arranged at the same height level as that of FIG. In this embodiment, the container supply table 32
Is located on the right side when the wrapping device of this embodiment is viewed from the front, and the container discharge stand 34 is located on the left side.
In the container supply table 32, the right end far from the wrapping table 30 is inclined so as to rise to the right, and from the inclined right end, for example, vegetables and fruits having perishable rinds such as strawberries and grapes. The container 36 containing the article 36a is supplied using the inclination.

In this embodiment, the container 36 is open at the top, and the side wall of the outer surface of the container 36 that goes downward from the periphery of the upper opening is inclined so as to go inward toward the inside of the upper opening. .

The length of each of the plurality of packaging film pieces 10a of the packaging film 10 is slightly larger than the dimension (hereinafter, referred to as length) at the upper opening of the container 36 corresponding to the longitudinal direction of the packaging film 10. Each width is sufficiently longer than a dimension (hereinafter, referred to as a width) at an upper opening of the container 36 corresponding to the width direction of the packaging film 10, and the above-described outer portion of each peripheral portion of the plurality of packaging film pieces 10 a is a container. It is sufficiently long outwardly than the width of the upper opening of 36.

Each of the wrapping table 30, the container supply table 32, and the container discharge table 34 has a comb-shaped planar shape with teeth facing forward as shown in FIG. 3A. . As shown in FIGS. 1 and 2, a moving table 38 extends below the wrapping table 30, the container supplying table 32, and the container discharging table 34, and the moving table 38 is a package film piece 10a on the mounting table 18a. Is supported by a vertically movable means 40 which can be selectively moved within a predetermined range in the thickness direction of the packaging film piece 10a on the mounting table 18a on the pedestal 14 of the support frame 14. It is supported by a width direction moving means 42 which can be selectively moved within a predetermined range.

The front end 38a of the moving table 38 (FIGS. 2 and 3)
(A) at the left end) and the rear end 38b (FIGS. 2 and 3).
(A) (right end in FIG. 3 (A)), the teeth are turned rearward as shown in FIG.
0, the container supply table 32, and the container discharge table 34 have a comb-tooth-like planar shape that approaches the respective comb teeth.

As shown by solid lines in FIGS. 2 and 3 (A), the initial position of the moving table 38 is such that the front end 38a is disposed below the lapping table 30, and the rear end 38b is connected to the container supply table. 32 is located below.

In this embodiment, the wrapping table 30, the container supply table 32, the container discharge table 34, the moving table 38,
The combination of the vertical moving means 40 and the width direction moving means 42 allows the container 36 accommodating the article 36a to pass through the opening of the container 36 and the packaging film piece 10a supplied from the mounting table 18a.
And the packaging film pieces 10a supplied from the mounting table 18a one by one to the lapping table 30 which is a predetermined position for covering by the wrapping table 30.
The container 36 whose opening is covered by the
Container sequential supply / discharge means 4 for sequentially discharging one by one from
3 included.

In the support frame 14, above the pressing arm 20, there is provided a forward / backward moving means 44 which can move in a forward / backward direction within a predetermined range, and the forward / backward moving means 44 moves vertically in a predetermined range. Possible vertical movement means 4
6 are provided. Further, the vertical moving means 46 is provided with a pair of width moving means 48 capable of moving within a predetermined range in the width direction of the packaging film piece 10a on the mounting table 18a. The pair of width direction moving means 48 further supports a pair of packaging film holding means 50 outside of both ends in the width direction of the packaging film piece 10a on the mounting table 18a.

1 and 2, the front-rear direction moving means 44, the vertical direction moving means 46, and a pair of width direction moving means 48 are arranged at the rear end position, the upper end position, and the outer position, respectively. The rear end position, the upper end position, and the outer position are the forward / backward moving means 44 and the up / down moving means 4.
6, and a pair of width direction moving means 48 are the respective initial positions.

Each of the pair of packaging film holding means 50 includes a pressing load projection 50a extending a predetermined distance in the longitudinal direction of the packaging film piece 10a on the mounting table 18a, and each of the pair of packaging film holding means 50. Pressing load projection 50a
Includes a pair of holding devices 50b supported at two positions separated from each other by a predetermined distance in the longitudinal direction.

In this embodiment, each holding device 5
Reference numeral 0b denotes a piston / cylinder device operated by compressed air, and a holding member 50c fixed to a lower end of an operating rod which moves up and down within a predetermined range in the piston / cylinder device presses the load rod by vertical movement of the operating rod. It comes into contact with and separates from the lower surface of 50a.

A pair of holding devices 50 supported by the respective pressing load projections 50a of the pair of packaging film holding means 50.
The operating rod b corresponds to the pressing force projection 50 corresponding to the thickness direction of the packaging film piece 10a on the lower mounting table 18a.
a, a pair of holding devices 50b which are inclined inward in the width direction as they move away from the inner side of the pressing force projections 50a in the width direction, are supported by the pressing force projections 50a. Clamping member 50c
It protrudes more inward in the width direction than the above.

The protruding inner end of the pressing load projection 50a is rounded as shown in FIG. 2 so that it does not damage the object to be pressed. The pressing force load projection 50a can include a buffer means so as not to damage an object to be pressed by itself being formed of, for example, an elastic material or supported through an elastic component.

The holding members 50c of the pair of holding devices 50b supported by the respective pressing force projections 50a of the pair of wrapping film holding means 50 correspond to the lower surfaces of the corresponding pressing force projections 50a in FIGS. It is arranged in an open position spaced apart from the lower side.

As shown by solid lines in FIGS. 1 and 2, the forward / backward moving means 44, the vertical moving means 46, and 1
The pair of width direction moving means 48 are arranged at the rear end position, the upper end position, and the outer position, which are the respective initial positions, and are supported by the pressing force projections 50a of the pair of packaging film holding means 50. While the holding member 50c of the pair of holding devices 50b is located at the open position, as is clear from FIGS. 2 and 4A, the pressing force of the pair of packaging film holding means 50 is increased. The projections 50a are located near the upper part of a pair of outer portions in the width direction in the peripheral portion of the packaging film piece 10a on the mounting table 18a, and the projections 50a of the pair of pressing force projections 50a of the pair of packaging film holding means 50 are provided. The holding members 50c of the pair of holding devices 50b supported respectively are located below the corresponding outer portions in the pair of outer portions in the width direction around the packaging film piece 10a on the mounting table 18a. That. That is, a pair of outer portions in the width direction at the peripheral portion of the packaging film piece 10a on the mounting table 18a are a pair of pressing force load projections 50a of the pair of packaging film holding means 50 and a pair of pressing force load protrusions. The pair of holding devices 50b supported by each of the pair of holding devices 50b are arranged in gaps between the holding members 50c at the open positions. At this time, the elongate adhesive 10b at a pair of outer portions in the width direction around the packaging film piece 10a on the mounting table 18a is used.
As is clear from FIG. 4A, are located between the gap and both ends of the mounting table 18a in the width direction, and do not adhere to them.

Further, in this embodiment, as in the case of the above-described vertical driving device 22 for the pressing member 24 of the pressing arm 20 and the pair of holding devices 50b of the pair of packaging film holding means 50, respectively, Container sequential supply / discharge means 43
Each of the vertical moving means 40 and the width moving means 42, the longitudinal moving means 44, the vertical moving means 46, and the pair of width moving means 48 is also constituted by a piston / cylinder device operated by compressed air. ing.

The operation of the wrapping apparatus configured as described above according to the embodiment of the present invention will be described with reference to FIGS. 1 to 3A and 4B.
The remaining FIG. 3 (B) and FIG. 4 (B) to FIG. 7 (A)
This will be described in detail with reference to FIG.

In the initial state of the operation of the wrapping apparatus according to the embodiment of the present invention described above with reference to FIGS. 1 to 3A and 4B, the operation of the embodiment of the present invention will be described. When a start button (not shown) of the above-described control circuit (not shown) of the wrapping device is pressed, first, the container sequential supply / discharge means 43 starts operating.
That is, the moving table 38 of the container sequential supply / discharge means 43 is the same as that in FIG.
3A, the comb teeth of the front end 38a are raised from the initial position indicated by the solid line by the vertical moving means 40 as indicated by the arrow A, as shown in FIG. By passing the comb teeth of the rear end portion 38b through the gap between the comb teeth of the container supply table 32, the front end portion 38a is disposed above the lapping table 30 and the rear end portion 38b of the container supply table 32 is It is moved to a raised position indicated by reference numeral 38 'in FIG. 2 arranged above. As a result, the container 36 containing the articles 36a on the container supply table 32 is placed on the rear end 38b of the moving table 38. Next, the moving table 38 is moved from the raised position indicated by the reference numeral 38 'in FIG.
To advance substantially horizontally above the wrapping table 30, the container supply table 32, and the container discharge table 34, respectively.
2A in which the upper end 8a is disposed above the container discharge table 34 and the rear end portion 38b is disposed above the wrapping table 30. Next, the moving table 38 is designated by reference numeral 38 in FIG.
As shown in FIG. 3B, the comb tooth at the front end 38a is passed through the gap between the comb teeth of the container discharge table 34 as shown in FIG. The comb teeth at the rear end 38b are wrapped with the lapping table 30.
Through the gap between the comb teeth, the front end 38a is arranged below the container discharge table 34 and the rear end 38a
b is moved to a lowered position indicated by reference numeral 38 ′ ″ in FIG. As a result, the container 36 containing the article 36a placed on the rear end 38b of the moving table 38 comes to be placed on the wrapping table 30.

That is, the moving table 38 of the container sequential supply / discharge means 43 is moved from the initial position shown by the solid line in FIG. 2 to the raised position, the advanced position, and the lowered position as shown by arrows A, B and C. , The container 36 containing the article 36 a on the container supply table 32 is moved onto the wrapping table 30 by the rear end 38 b of the moving table 38.

Thereafter, the moving table 38 is moved from the lowered position indicated by the reference numeral 38 '''' in FIG.
2, which is retracted substantially horizontally below each of the container discharge tables 34, and the front end 38a is disposed below the wrapping table 30 and the rear end 38b is disposed below the container supply table 32 in FIG. It returns to the initial position indicated by.

As described above, the container 3 containing the article 36a on the wrapping table 30 by the container sequential supply / discharge means 43.
6 are placed, the holding members 50c of the pair of holding devices 50b supported by the pair of pressing force load projections 50a of the pair of packaging film holding means 50 at the initial position are shown in FIGS. From the open position, which is the initial position shown in FIG. 2, the packaging film piece on the mounting table 18a is moved toward the lower surface of the corresponding pressing load projection 50a and cooperates with the lower surface of the corresponding pressing force projection 50a. A pair of outer portions in the width direction at the peripheral portion of 10a sandwich the corresponding outer portion.

A pair of packaging film pieces 10a having a pair of outer portions in the width direction in the peripheral portion sandwiched by the two pairs of holding devices 50b of the pair of packaging film holding means 50 on the mounting table 18a is a pair of packaging films. The holding means 50 holds the pair of mounting tables 18a in a spread state.

Next, the pair of packaging film holding means 50 is
The pair of width direction moving means 48 and the longitudinal direction moving means 4
4 moves from the initial position shown in FIG. 1 to the forward position shown in FIG. When the pair of wrapping film holding means 50 has reached the advanced position, as shown in FIGS.
The line of weakening 26 between a and the next packaging film piece 10a substantially coincides with the leading edge of the mounting table 18a, and the leading packaging film piece 10a is disposed directly above the upper opening of the container 36 on the wrapping table 30. You.

At this time, the pressing member 24 located above the distal end of the mounting table 18a is lowered by the vertical drive unit 22 to press the distal end of the next packaging film piece 10a against the distal end of the mounting table 18a. Also the next packaging film piece 1
The detection mark 28 of 0a is detected by the detection means 29.

Next, a pair of packaging film holding means 50
Vertical moving means 46 together with a pair of width moving means 48
5 from the upper end position shown by the solid line in FIG. 5 to the lower end position.

As a result, the pair of packaging film holding means 5
0 is the next packaging film piece 10a placed on the mounting table 18a.
Is weakened and the next packaging film piece 1 is broken.
0a, the next packaging film piece 10a is left at the initial position on the mounting table 18a.

The pair of packaging film holding means 5 lowered
The top packaging film piece 10a held at 0 is placed on the upper opening of the container 36 on the lapping table 30 or on the object 36a exposed in the upper opening, and at the periphery of the top packaging film piece 10a. As shown in FIG. 4B, the pair of outer portions with the adhesive 10b protrude from the upper opening of the container 32 in the width direction described above.

As is clear from this, in this embodiment, the front-rear direction moving means 44 and the vertical direction moving means 46 move the packaging film piece 10a held by the pair of film holding means 50 to the upper part of the container 36. It is included in the packaging film covering means for covering the opening.

In this embodiment, a pair of wrapping film holding means 50 is shown by a vertical line moving means 46 together with a pair of width direction moving means 48 by a solid line in FIG. A predetermined distance (specifically, the packaging film piece 10a held by the pair of film holding means 50 is opened from the upper end position of the container 36 on the lapping table 30 while being lowered from the upper end position as shown above. When the pair of wrapping film holding units 50 are lowered, the pair of wrapping film holding units 50 are also moved toward the inner end positions approaching each other by the pair of width direction moving units 48.

For this purpose, a pair of packaging film holding means 5
0, an excessive pressing force is applied to the object 36a exposed around the upper opening of the container 36 and the upper opening of the container 36 on the wrapping table 30 due to the tension of the packaging film piece 10a. Around the upper opening or container 3
6 is prevented from being damaged in the object 36a exposed in the upper opening of FIG.

The above-mentioned urging means of the wrapping table supporting means 31 supporting the wrapping table 30 is also placed on the wrapping table 30 by the tension of the packaging film piece 10a held by the pair of packaging film holding means 50. Container 36
Excessive pressing force is applied to the object 36a exposed around the upper opening of the container 36 and the upper opening of the container 36, and the object 36a exposed around the upper opening of the container 36 and the upper opening of the container 36 is Prevent damage.

The pair of wrapping film holding means 50 and the pair of width direction moving means 4 by the vertical moving means 46
While the pair 8 is lowered from the upper end position shown by the solid line in FIG. 5 as described above, the pair of width direction moving units 48 causes the pair of packaging film holding units 50 to start moving toward the inner end position. The timing can be set freely. For this reason, even if the material of the packaging film piece 10a, the material and dimensions of the container 36, and the type of the object 36a are changed, the timing can be set to 1
The wrapping table 30 is held by the tension of the packaging film piece 10a held and lowered by the pair of packaging film holding means 50.
Excessive pressing force is applied to the object 36a exposed around the upper opening of the container 36 and the upper opening of the container 36, and the object 36a is exposed around the upper opening of the container 36 and the upper opening of the container 36. Damage to the object 36a can be prevented.

Each of the pressing force load projections 50a of the pair of wrapping film holding means 50 reaching the inner end position has two pairs of holding devices 50b as shown by solid lines in FIGS.
Is pressed against the inclined outer surface of the container 36 on the lapping table 30 by pressing the pair of outer portions with the adhesive 10b around the packaging film piece 10a held by the To the outside surface.

FIG. 6 also shows a pair of wrapping films which are moved from the upper end position to the lower end position by the vertical moving means 46 and moved toward the inner end position by a pair of width direction moving means 48 on the way. The movement trajectory of the holding means 50 is indicated by arrows X and Y.

FIG. 7 (A) shows the case where the vertical movement means 46 moves from the upper end position to the lower end position after being moved to the forward position by the longitudinal movement means 44.
The leading packaging film piece 10a held by the pair of packaging film holding means 50 is cut from the weakening line 26 between the packaging film piece 10a placed on the mounting table 18a and the next packaging film piece. It is shown that the packaging film piece 10a is separated from the film piece 10a, the next packaging film piece 10a is left at the initial position on the mounting table 18a, and the leading packaging film piece 10a covers the upper opening of the container 36 on the wrapping table 30. .

As is apparent from this, in this embodiment, a pair of pressing force projections 50a of the pair of width direction moving means 48 and the pair of packaging film holding means 50 are provided.
However, the packaging film piece 1 protruding from the upper opening of the container 36
This is included in the packaging film attaching means for pressing the above-mentioned pair of outer portions of the periphery of Oa toward the outer surface of the container 36 and attaching the above-mentioned pair of outer portions of the adhesive 10b to the outer surface.

Next, a pair of packaging film holding means 50-2
Each of the holding members 50c of the pair of holding devices 50b is moved to the open position to cover the upper opening of the container 36 on the lapping table 30 and to apply an adhesive 10 to the outer surface of the container 36.
b is removed from the pair of outside portions of the packaging film piece 10a to which the b is attached, and the pair of width direction moving means 4 is further removed.
8 moves the pair of packaging film holding means 50 from the inner end position to the outer end position, and moves the pair of packaging film holding means 50 up and down.
6 moves the pair of packaging film holding units 50 together with the pair of width direction moving units 48 from the lower end position to the upper end position.

FIG. 7B is a schematic front view of the wrapping device according to the embodiment of the present invention in this state.
FIG. 7B also shows a pair of width-direction moving means 48 for moving from the inner end position to the outer-end position, and vertical movement means 46 for moving from the lower end position to the upper end position. The movement trajectories of the moved pair of packaging film holding means 50 are indicated by arrows α and β.

As is apparent from FIG. 7B, the holding members at the respective open positions of the two pairs of holding devices 50b of the pair of packaging film holding means 50 when disposed at the outer end position and the upper end position. The gap between the pair of pressing force projections 50a and the pair of pressing force projections 50a is at the same height level as the above-described pair of outer portions around the packaging film piece 10a next to the mounting table 18a, and the pair of the above-described pair. On the extension of the front and rear direction of the outer part of the.

For this reason, after this, the up-down direction moving means 46 with a pair of wrapping film holding means 50 and a pair of width direction moving means 48, which are arranged at the outer end position and the upper end position, are thereafter moved. When returned to the initial position shown in FIG. 1, the wrapping device according to the embodiment of the present invention returns to the initial state shown in FIG.

The container 36 covered with the upper opening and the object 36a exposed at the upper opening by the packaging film piece 10a attached to the outer wall on the wrapping table 30 is used to carry out the present invention to the above initial state. After the return of the wrapping device according to the embodiment, the moving table 38 of the container sequential supply / discharge means 43 is indicated by reference numeral 38 'from the initial position shown by the solid line in FIG. It circulates to an ascending position indicated by a dashed line, a forward position indicated by a dashed line indicated by reference numeral 38 ″, a descending position indicated by a dashed line indicated by reference numeral 38 ″ ″, and an initial position indicated by a solid line. Thus, the transfer table 38 is transferred from the wrapping table 30 to the container discharge table 34 by the front end 38 a of the moving table 38. At this time, the moving table 38 simultaneously transfers the container 36 containing the object 36a on the container supply table 38 to the lapping table 30 for the next lapping operation by the rear end portion 38b.

The container 36 covered by the packaging film piece 10a transferred onto the container discharging table 34 is moved from the wrapping table 30 to the container discharging table 30 as described above. The container is covered by the next packaging film piece 10a by being transferred onto the container 34, and is further moved from the container discharge table 34 to a box packing place (not shown) by the downward inclined surface following the container discharge table 34. Is done.

[0072]

As is clear from the above description,
ADVANTAGE OF THE INVENTION According to the wrapping apparatus according to this invention, when covering the opening of the container which accommodates perishable objects, such as fresh food, with the packaging film which does not substantially expand, and the container in the packaging film which does not expand substantially, When attaching the portion protruding from the opening of the container to the outer surface of the container, it is possible to handle a packaging film that does not substantially elongate without causing damage by applying a large force to the object,
Even if the outer surface of the container is inclined, a packaging film that does not substantially expand on the outer surface of the container can be securely attached.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an initial state of a lapping device according to an embodiment of the present invention.

FIG. 2 is a schematic front view of the wrapping device of FIG.

FIG. 3A is a schematic plan view showing a state in which a moving table is arranged at an initial position in the container sequential supply / discharge means of the wrapping device of FIG. 1; and
FIG. 4 is a schematic plan view showing a state in which a moving table is arranged at a forward position in the container sequential supply / discharge means of FIG.

FIG. 4A is a schematic diagram showing a positional relationship between a packaging film piece at a leading end on a mounting table, a pair of packaging film holding means, and a wrapping table of a container sequential supply / discharge means in the wrapping apparatus of FIG. 1; FIG.
(B) shows a state in which the packaging film piece at the tip on the mounting table in the wrapping device of FIG. 1 is pulled out directly above the container on the wrapping table in a state where the packaging film piece is pinched and spread by a pair of packaging film holding means. It is a top view which shows schematically.

FIG. 5 schematically shows a state in which a packaging film piece at a tip end on a mounting table is pulled out just above a container on the wrapping table in a state where it is sandwiched and spread by a pair of packaging film holding means in the wrapping apparatus of FIG. FIG.

FIG. 6 is a perspective view of the wrapping apparatus shown in FIG. 1 in which the leading end of the wrapping film piece on the mounting table is placed on a container on the wrapping table in a state of being held and spread by a pair of wrapping film holding means; It is a front view which shows roughly the state immediately after a pair of outer part of a peripheral part was attached to the inclined outer surface of the container.

7A is a view showing a state in which the packaging film piece at the tip on the mounting table in the wrapping apparatus of FIG. 1 is covered with a container on the wrapping table in a state of being held and spread by a pair of packaging film holding means; FIG. 4B is a side view schematically showing a state immediately after a pair of outer portions of the peripheral portion is attached to the inclined outer surface of the container by the packaging film attaching means; and (B) is an embodiment of the present invention. FIG. 6 is a front view schematically showing a state immediately before returning to an initial state after a packaging film piece is attached to the outer surface of the container in the wrapping device according to FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Packaging film 10a Packaging film piece 10b Adhesive 26 Weak line 30 Lapping table 32 Container supply table 34 Container discharge table 36 Container 38 Moving table 43 Container sequential supply / discharge means 44 Front-back movement means (Packing film covering means) 46 Vertical direction Moving means (wrapping film covering means) 48 width direction moving means (wrapping film attaching means) 50 wrapping film holding means 50a pressing force load projection (wrapping film attaching means: buffer means) 50c clamping member

Claims (3)

[Claims] 1. A wrapping device for covering an opening of a container with a packaging film and attaching the packaging film to an outer surface of the container, wherein the wrapping device has a predetermined size larger than the opening of the container with an adhesive or an adhesive at least in a peripheral portion. Packaging film holding means for holding a packaging film in a spread state, a packaging film covering means for covering a packaging film held by the packaging film holding means over an opening of a container, and a packaging film protruding from the opening of the container. Means for pressing the peripheral portion of the packaging film toward the outer surface of the container to attach the peripheral portion of the packaging film to the outer surface of the container, and the peripheral portion of the packaging film adheres to the outer surface of the container. The wrapping device, wherein the holding of the packaging film by the packaging film holding means is canceled after the wrapping. 2. The packaging film holding means includes a plurality of holding members for holding a peripheral edge of a packaging film of a predetermined size, and the packaging film attaching means includes a packaging film covered by the packaging film holding means. After the covering film is covered with the opening of the container by the means, the plurality of holding members of the packaging film holding means are relatively lowered from the opening of the container, and further moved toward the outer surface of the container, so that the packaging film protruding from the opening of the container. The wrapping device according to claim 1, wherein the peripheral portion is attached to an outer surface of a container. 3. The packaging film has a long shape in which a weakened line is formed at every predetermined length, and is held by the packaging film holding means, and is covered by the packaging film covering means over the opening of the container. 3. The wrapping device according to claim 1, wherein the predetermined size is drawn out of the long-shaped packaging film and separated from the long-shaped packaging film by a weakening line. 4. .