JP6515071B2 - Package, method and apparatus for packaging - Google Patents

Description

  In this invention, a groove of a predetermined depth is formed on the upper surface of the roll bread, and a so-called "cooking bread" such as a "hot dog" or the like having "Yakisoba" or "a sausage covered with lettuce" , An agricultural product, for example, a package such as “Shimeji” which is packaged such that the upper portion is not in contact with the film as much as possible, or a package suitable for packaging a package not to be pressed inwardly by the film The present invention relates to a packing method and a packing apparatus (also referred to simply as a "packaging body" in the present specification and claims and the like). In this specification and claims, "film sheet" refers to a thin film sheet for packaging a package.

Taking the case of the aforementioned "Yakisoba bread" as an example, these "Yakisoba breads" etc. are currently packaged in a state where the inner surface of the film sheet for packaging is in contact with the sandwiched "Yakisoba" and sausages etc. ing.
For this reason, the film sheet comes into contact with a sauce made of buckwheat noodles, ketchup or the like of sausages, and is displayed in a state where the inner surface of the film sheet is soiled.
Such a situation detracts from the appearance as a product (aesthetic), and depending on the product, the sales may be greatly affected.
For this reason, the "Yakisoba bread" and the like are displayed in a display case without being packaged with a film, and a sales clerk takes out from the case at the time of sale, and is sold in a state where only the bottom and the side are wrapped with wrapping paper.
However, it can not be adopted in a so-called convenience store type or supermarket type store which does not employ such a sales method.

Therefore, cooking bread such as "Yakisoba bread" provided at a convenience store has been placed on a rather large tray or mount and wrapped around with a film sheet.
Alternatively, it may be sold in a box made of a transparent rigid hard material. As such prior art, there exist patent document 1, patent document 2 grade | etc.,.

Patent document 1: JP-A-2002-37331 Japanese Patent Application Laid-Open No. 10-120022

However, as described above, in the case of the packages described in Patent Document 1 and Patent Document 2, the packaging cost is high, and the disposal of trays, boxes, and the like is required for the purchaser.
On the other hand, if packaging with a thin film sheet with low rigidity, the package material is "Yakisoba bread", and the source etc. adheres to the inner surface of the film sheet and the aesthetic appearance of the product is impaired. If the head of "Shimeji", which is a department, is pressed or the like, a part of the pressed part will be damaged, and the product value will be reduced.

  The present invention has been made in view of such a situation, and the upper part of "Yakisoba bread" or "Shimeji" does not contact as much as possible with the film or does not want to be pressed inward by the film. An object of the present invention is to provide a package, a packaging method therefor, a packaging apparatus and the like which are suitable for packaging a package.

The package according to the first aspect of the present invention is a package suitable for packaging a package whose top portion does not want to be in contact with the inner surface of the film sheet or which is not preferred to be pressed outward by the film sheet,
In the state where the material to be packaged is placed at the center in the width direction of the film sheet, the bottom and both sides are covered with the film sheet from below, and the material to be packaged at the upper part of the material to be packaged Both side ends in the width direction of the film sheet are center-sealed, with a clearance space being formed between the film sheet and the package after sealing with the upper end of the film;
Top-sealed at the front part of the package, tail-sealed at the rear part of the package, and a gusset formed at the bottom behind the top-sealed part and the tail-sealed A gusset is formed at the bottom in front of the portion.

According to the package as described above, even the package such as “Yakisoba bread” or “Shimeji” is wide due to the gusset in which the bottom of the package is spread by the weight of the package as described above. And the upper portion of the package is also brought into contact with the inner surface of the film sheet as much as possible without contact with the inner surface of the film sheet. Is not pressed from the outside by In addition, since the bottom portion is wide, the packaged body after packaging can be stably placed or transported.
In addition, since the package containing the package is center-sealed at the upper end, if the center-sealed portion is manually picked up, the upper portion of the package can be connected to the inner surface of the film sheet. It can be moved without any contact and without being strongly pressed from the outside by the film sheet.
And, in the state where the package is sealed at the center, if the tail seal of the package and the top seal of the package following it are simultaneously and sequentially performed, it is simple and efficient. It can be packaged.

A packaging method according to a second aspect of the present invention is a package suitable for packaging an object such that the upper portion of the object does not contact the film sheet as much as possible or does not want to be pressed inwardly by the film sheet. A method of packaging a package to be packaged in a reverse pillow form using a continuously fed film sheet, comprising:
The articles to be supplied continuously are placed at intervals in the center in the width direction on the film sheet extending in a strip shape and are transported downstream, and the film is transported halfway While both side end portions of the sheet are bent upward and a clearance space is formed up and down with the package, the both side end portions of the upper film sheet are center-sealed to form a cylindrical shape. ,
On the downstream side, when performing tail seal at the rear portion of the package with the center seal and performing top seal at the front portion of the following package, and performing the tail seal and the top seal, It is characterized in that a gusset is formed at the bottom in front of the tail sealing part and a gusset is formed at the bottom behind the top sealing part.

According to the packaging method of the second invention, the package of the first invention can be obtained.

  In the packaging method according to the second aspect of the present invention, the tail seal and the top seal are positioned forward in the transport direction on the upper end side and in the transport direction on the lower end side with respect to the transport direction of the packaged object. When performed obliquely or perpendicularly to the direction, the formation of the gusset on the bottom can be performed smoothly and in a longitudinally extended form at the top of the package.

  In the packaging method according to the second aspect of the invention, a seal portion is formed by the tail seal and the top seal in the vicinity where the tail seal and the top seal are performed when or before the tail seal and the top seal are performed. Once the wrinkles are removed, it is possible to clean the seal at each place of the tail seal and the top seal.

A packaging apparatus according to a third aspect of the present invention is a packaging apparatus suitable for packaging an object such that the upper part does not contact as much as possible with the film sheet or does not want to be pressed inwardly by the film sheet. ,
The packaging device is
A transport device provided with transport means for transporting the packaged object from upstream to downstream;
A film sheet supply device for supplying the strip-like film sheet vertically aligned with the conveyance surface of the conveyance means;
A former which bends and inverts into a U-shape when feeding the strip-like film sheet fed from the film feeding drum of the film sheet feeding device to the transport surface side;
Both end portions of the film sheet, which is bent and inverted in a U-shape by the former, and in which the packaged objects are sequentially separated from each other at the central portion in the width direction, are joined together to form a cylindrical body. A center seal device to be formed;
A tail seal device for tail sealing the film sheet formed on the tubular body at the rear of the packaged object located at the beginning;
A top seal device for performing a top seal in front of a subsequent package located behind the package located at the top;
A first gusset forming device for pushing up from the bottom of the film sheet to a front portion of a top seal portion of the top seal device, and a film sheet at a rear portion of a tail seal portion of the tail seal device. A second gusset forming device that pushes upward from the bottom of the
It is characterized by having.

According to the packaging device of the third aspect of the invention, the packaging body of the first aspect of the invention can be obtained, and the packaging method of the second aspect of the invention can be implemented.

  In the packaging device according to the third aspect of the present invention, if a trimming device is provided in the vicinity of the tail seal device and the top seal device to prevent the occurrence of wrinkles generated on the seal portion, the tail seal and the top It is possible to seal without wrinkles at each part of the seal.

  In the packaging device according to the third aspect of the present invention, the transport device is disposed downstream of the first transport means, and the first transport means is provided as the transport means up to the part reaching the top seal device. The downstream end includes a second transport means capable of tilting downward (swing) downward, and the second transport means swings so that the second transport means is lowered at the downstream end before the tail seal device operates. If it is configured so as to be able to provide dimensional clearance at the bottom of the package, the formation of the above-mentioned gusset can be performed smoothly. Also, the size of the upper portion of the package A can be configured to be longer than the size of the bottom portion, and a spatial clearance is formed at the upper portion.

  According to the present invention, a package suitable for packaging a package such as “Yakisoba bread” or “Shimeji” which dislikes contact with the film as much as possible or does not want to be pressed inward by the film. It is possible to provide a body and its packaging method, packaging apparatus and the like.

It is a figure which shows the external appearance shape of the package body concerning one Embodiment of this invention, (a) is the perspective view which looked at the package body from diagonally upward slightly, (b) is a bb arrow direction of (a) It is the figure which looked at. It is a figure which shows the structure of the principal part of the packaging apparatus for packaging to the package body shown in FIG. 1, (a) is a schematic whole view which shows the structure of the principal part of the whole packaging apparatus, (b) is shown to (a) It is the elements on larger scale of (a) which shows the structure of the downstream seal | sticker apparatus of a packaging apparatus, a tail seal apparatus, and a conveying apparatus. (A) is an IIIa-IIIa arrow line view of Fig.2 (a), (b) is an IIIb-IIIb arrow line view of Fig.2 (a). (A) is a gripping device of the packaging device, a trimming device, a tail seal device and a top seal device, as viewed from the arrow IVa-IVa in FIG. 2 (a); (b) is the gripping device, the trimming device and the tail It is an IVb-IVb arrow line view of Drawing 2 (b) showing the state at the time of operation of a seal device and a top seal device. The arrangement of the heater of the sealing means and the cutting portion shown in FIG. 4 is a diagram showing the sealing surface. It is a block diagram which shows the structure of the whole packaging apparatus concerning this embodiment shown to FIGS. 1-5.

  Hereinafter, a package according to an embodiment of the present invention, and a packaging apparatus and a packaging method for packaging the package will be specifically described with reference to the drawings.

In FIG. 1, A is a package, and the package A has a package 1 and a film sheet 3 surrounding the package 1 from the periphery (outside). The to-be-packaged item 1 is a thing which dislikes contact with the inner surface 3i of the film sheet 3 or dislikes being pressed from the outside by the film sheet 3, and in this embodiment, “Yakisoba bread” is an example. To mention
"Yakisoba bread" is a kind of so-called "cooking bread", in which a sandwiching groove is formed on the upper surface of the roll bread and "Yakisoba" is sandwiched in the sandwiching groove.
Moreover, in this embodiment, a transparent film sheet is used as the film sheet 3. However, the film sheet 3 may be a translucent film sheet or an opaque film sheet.

In this embodiment, as illustrated in FIG. 3A, the package A is in a state in which the package 1 is placed at the central portion in the width direction of the film sheet 3, as illustrated in FIG. , (B), as shown in FIG. 2 (b), the film sheet 3 covers the bottom 1 b and the both sides 1 s of the package 1 from below.
Further, as shown in FIGS. 1 (a) and 1 (b), in the package A, the side edges 3e in the width direction of the film sheet 3 are lifted upward at the upper part of the package 1 In the state, the center seal Ss is used, and the package is packaged in a state in which the clearance space Su is formed between the upper end of the package 1 and the film sheet 3 after the center seal.
Then, as illustrated in FIGS. 1 (a) and 1 (b), the package A is top sealed To at the front portion of the packaged object 1, and is tail sealed at the rear portion of the packaged object 1. Ta is completely covered with the film sheet 3. Further, a gusset G is formed at the bottom of the rear portion of the portion to be top seal To, and the gusset G is formed at the bottom of the front portion of the tail sealed portion.

As a result, as shown in FIG. 1 (b), in the package A, the portion of the “baked buckwheat” to which the source is attached does not contact the inner surface 3i of the film sheet 3; The inner surface 3i of is not soiled.
In addition, the film sheet 3 does not press the package 1 from the outside in the upper part of the package 1.
Also, when the package A is held by hand or mechanically gripped and put in or out of a pass-through box etc., the upper end portion of the package A, that is, the portion where the center seal Ss is gripped If so, the portion of “Yakisoba” does not come in contact with the inner surface 3 i of the film sheet 3.

And the said package 1 can be made into the package body A mechanically packaged in the reverse pillow form with the film sheet 3 by the packaging apparatus B of a structure which is described below.
That is, the packaging body B shown in FIG. 1 (a), (b) can be formed by the packaging apparatus B as illustrated in FIG. Hereinafter, the structure of this packaging apparatus B, its operation | movement, and an effect | action are demonstrated.

  As illustrated in FIG. 2A, the packaging apparatus B according to the present embodiment bends the sheet-like film into a U-shape, as the conveying apparatus 10, the film sheet feeding apparatus 11 for supplying a sheet-like film, The former 12 to be formed, the center seal device 13 for sealing both ends of the sheet film, the top seal device 14, the tail seal device 15, the first gusset forming device 16, and the second gusset forming device 17 Equipped with

The transport device 10 according to the present embodiment is configured to transport the packaged object 1 from the upstream side to the downstream side in synchronization with the same feeding speed of the film sheet 3 of the film sheet feeding device 11. .
And in this embodiment, the conveyance device 10 comprises a conveyance conveyor 10a which is a first conveyance means, and a delivery conveyor 10b which is a second conveyance means, which is disposed downstream of the conveyance conveyor 10a. .
A strip-shaped film sheet 3 fed from a film supply drum 11b of the film sheet supply device 11 is supplied on the conveyance surface 10f of the conveyance conveyor 10a and the discharge conveyor 10b.
In this embodiment, a belt conveyor is employed as the transport conveyor 10a and the unloading conveyor 10b.
The conveyance conveyor 10a is configured so that the downstream end (head pulley) can expand and contract in the conveyance direction (see the direction indicated by the arrow X in FIG. 2A). As a result, at the time of sealing operation of the top seal To and the tail seal Ta described later, the downstream end of the transport conveyor 10a retracts in the reverse transport direction, and the top seal device 14 and tail seal device shown in FIG. When each sealing means 14a and 15a of 15 and the corresponding picking devices 18 and 18 provided corresponding thereto are to be positioned at the operating position, they are configured not to physically interfere with the transport conveyor 10a. It is done. That is, as shown in FIG. 2 (b), the downstream end of the transfer conveyor 10a is contracted upstream to form a gap Sf with the discharge conveyor 10b, thereby preventing the interference. ing.

As shown in FIG. 2A, the former 12 is provided at the upstream end of the conveyor 10a, and the former 12 reverses the supply direction (moving direction) of the supplied film sheet 3. As shown in FIG. 3A, the film sheet 3 is bent in a U-shape, and the central portion in the width direction of the film sheet 3 substantially abuts on the conveyance surface 10f of the conveyance conveyor 10a. Form a U-shaped state rising upward.
Then, as illustrated in FIG. 2A and FIG. 3A, at the central region in the width direction of the film sheet 3, the packaged object by the hand of an operator or by a feeding device (not shown). 1 is placed.

As shown in FIG. 2A, a drive roller pair 11c for delivering the film sheet 3 downstream is disposed at the upper part of the central portion in the transport direction of the transport conveyor 10a, and at the same time downstream thereof. The center seal device 13 that performs the seal seal Ss is disposed. The drive roller pair 11c and the center seal device 13 are configured to feed the film sheet 3 downstream at the same speed as the supply speed.
The center seal device 13 includes a pair of left and right rollers 13c incorporating a heater, and is configured to seal (center seal Ss) in a state in which both side end portions of the film sheet 3 are overlapped. That is, the center seal device 13 forms a U-shaped film sheet 3 as illustrated in FIG. 3A in a tubular shape as illustrated in FIG. 3B. And "Yakisoba bread" which is the said package 1 is wrapped in the inside of the film sheet 3 formed in the said cylindrical shape (refer FIG.3 (b)).
As shown in FIGS. 2 (a) and 3 (a), the size of the center seal Ss in the height direction on the upstream side of the center seal device 13 (upstream of the drive roller pair 11c). The controller 20 is disposed to adjust the size, and is configured to be capable of adjusting the size by means of the adjustment knob 20a at the upper end.

As illustrated in FIG. 2, the top seal device 14, the tail seal device 15, the first gusset forming device 16, and the second gusset forming device are disposed between the transport conveyor 10 a and the discharge conveyor 10 b. 17. The scraping devices 18A and 18B and the cutting device Cu are provided so as to be able to retract and enter.
The top seal device 14, the tail seal device 15, and the trimming devices 18A and 18B are substantially perpendicular to the transfer surface 10f of the transfer conveyor 10a in a side view as shown in FIG. 2 (in the case of this embodiment) Are arranged on the common frame 19 in such a manner that the longitudinal direction of their seals coincides with the inclination angle so that the inclination angle is deviated toward the downstream side by about 5 degrees upward, The film sheet 3 formed thereon is disposed so as to be capable of sealing (sealing operation of the top seal To and the tail seal Ta) in a state where the package 1 is contained inside. The inclination angle may be approximately 0 degrees to 7 degrees depending on the length of the package 1 and the thickness of the film sheet 3 or the like. Specifically, in the case of the package 1 having a short length in the conveying direction such as rice, the above-mentioned inclination angle is approximately 0 degree, and good packaging can be performed. On the other hand, in the case of the long package 1, it is preferable to make it inclined as described above.
Then, as illustrated in FIGS. 4A and 4B, the top seal device 14 and the tail seal device 15 are disposed to be able to perform a pinching operation (see an arrow Y in FIG. 4A). A pair of left and right sealing means 14a and sealing means 15a are provided. The lower ends of the sealing means 14a and the sealing means 15a are configured so as to be able to sandwich the frame 19 toward the center of the film sheet 3 (see the arrow Y), and are sandwiched between them. Top seal To and tail seal Ta can be applied to the tubular film sheet 3.

In addition, when the top seal To and the tail seal Ta are performed as described above, the portion between the top seal To and the tail seal Ta is cut by the cutting device Cu and packaged for each package 1 (package A). Is configured to separate what has been completed. As a configuration of such a cutting device Cu, for example, as shown in FIG. 5, the sealing means 14a, the sealing means 15a, and a cutting heater portion provided therebetween are combined into one block 28. It can be realized by arranging in the plane (surface) of. As a cutting means of the said cutting device Cu, it can replace with the said heater for a cutting, and other means, for example, a cutter (blade), can also be used.
Further, when the top seal To and the tail seal Ta are performed (before), as shown in FIG. 2B, the first gusset forming device disposed on both the front and back sides in the transport direction of the frame 19 16 and each of the gusset claws 16a and 17a of the second gusset forming device 17 ascend by the dimension shown by the arrow R (refer to FIG. 4A) to a position above the transport surface 10f. By pushing up the bottom surface, as shown in FIGS. 1 (a) and 1 (b), the gusset G is formed at the bottom of the front end portion and the rear end portion of the package A.
In addition, before each sealing of the top seal To and the tail seal Ta, a trimming device 18 having a pair of left and right levers 18a shown in FIG. 4 is activated and can be rotated relative to the levers 18a. It is configured to remove wrinkles that are to be generated on the film sheet 3 at the portion to be sealed by rotation of the drawing belt 18c disposed at the position.
In the case of this embodiment, the lever 18a is configured to be able to “pinch” the film sheet 3 from both sides by swinging the lower end as illustrated in the arrow Q around the support shaft 18b at the upper end. There is. Then, in the state of being sandwiched as described above, it is configured to take up as much as possible wrinkles of the film sheet 3 sandwiched between by the rotation operation of the shading belts 18c that circulate around the left and right levers 18a. There is.
The top seal device 14, the tail seal device 15 and the cutting device Cu are configured such that the one block 28 performs “clamping operation (see FIG. 4 (a))” as described above. Alternatively, the block 28 may be configured to abut from both sides by sliding in the horizontal direction so as to seal and cut. However, in terms of the performance for removing wrinkles, the "pinch operation" of the configuration shown in FIGS. 4 (a) and 4 (b) is preferable in that it can be performed better.

  And when performing each seal operation of the top seal To and the tail seal Ta, and when forming the gazette G, and when performing the weeding operation, the above-mentioned so as not to interfere with these operations. Thus, the downstream end (head pulley portion) of the transport conveyor 10a contracts (moves) upstream, and a gap Sf is formed between the downstream end of the transport conveyor 10a and the upstream end of the discharge conveyor 10b. Ru. When the gap Sf is thus formed, the transfer conveyor 10a is configured to stop the transfer operation.

By the way, as illustrated in FIG. 2, when the top seal To and the tail seal Ta are sealed, the unloading conveyor 10 b is tilted as indicated by an arrow Rr around the swing axis O1 at the upstream end. By expansion and contraction of the cylinder 10c (see FIG. 6), it is rocked (tilted) by a predetermined angle Rr (for example, about 15 degrees at the maximum in this embodiment). When the thickness of the film sheet 3 is large, it swings by about 15 degrees, and when the length of the package A is long (for example, a soba pan), it swings by about 15 degrees. Such rocking motion is performed to provide dimensional clearance at the bottom of the package A so that formation of the above-mentioned gusset G can be performed smoothly. The predetermined angle Rr can also be configured to be approximately 0 degrees to 20 degrees depending on the length of the package 1, the thickness of the film sheet 3, and the like. Specifically, in the case of the package 1 such as rice ball, the predetermined angle Rr can be good at about 0 degrees.
Further, as in this embodiment, the inclination angles of the top seal device 14 and the tail seal device 15 are set to about 1/2 to 1/3 of a predetermined angle at which the unloading conveyor 10b swings. This is a preferable configuration in that the length of the upper portion of the package A can be made longer than the length of the bottom, that is, the size of the upper portion of the package A can be elongated. That is, a space is formed in the upper part of the package A.
When the swing operation is performed, the carry-out conveyor 10b is configured to stop the carry-out operation.

  Further, as illustrated in FIG. 2A, FIG. 2B or FIG. 4A, FIG. 4B, the delivery conveyor 10b swings (tilts as shown by an arrow Rr around the swing axis O1). In order to position the package A, the gripping devices 21 and 22 for gripping the center seal Ss portion form a pair, respectively adjacently on the upstream and downstream sides of the frame 19 , Is provided. Each of the gripping devices 21 and 22 is a pair of gripping arms 21b and 22b pivoting about the upper pivot shaft 21a (22a) as illustrated in FIGS. 4 (a) and 4 (b). It is comprised so that the said center seal Ss part of the film sheet 3 may be clamped from both sides.

  And, a motor (for example, an inverter type motor etc.) for driving the packaging device B, each actuator such as an air pressure cylinder, etc., and a plurality of detection devices 31, 32, 33 provided at each position are shown in FIG. As shown in the block diagram, the control device 25 of the packaging device B is connected by a signal line, and is configured to receive a detection signal from the detection device and issue a predetermined control signal to perform the predetermined packaging. .

When forming the package A, the packaging apparatus B according to the present embodiment configured as described above operates as follows and implements the packaging method according to the present embodiment. That is, the packaging apparatus B can package the package 1 placed on the film sheet 3 in the package A of the reverse pillow form described above.
Hereinafter, the packaging operation (packaging method) of the packaging device B will be described together with the control contents of the control device 25 of the packaging device B.

When the start switch of the packaging device B is turned on, the transport conveyor 10a, the discharge conveyor 10b, the film sheet supply device 11, the driving roller pair 11c and the center seal device 13, the top seal device 14, the tail seal device 15, Each device such as the removing device 18 is in an operating state (standby state) (step 1).
In this state, when the package 1 is placed on the film sheet 3 on the former 12, the detection device 31 provided in the vicinity of the position detects the same (step 2).
By this detection, the transport conveyor 10a, the film sheet supply device 11, the drive roller pair 11c and the center seal device 13 operate to feed the film sheet 3 and the package 1 thereon on the downstream side. Meanwhile, the center seal Ss is performed by the center seal device 13 (step 3).

Then, when the package 1 is transported to a predetermined position near the downstream end of the transport conveyor 10a, the detection device 32 provided in the vicinity of the position detects it and the transport conveyor 10a and the transport conveyor 10a The film sheet feeding device 11, the drive roller pair 11c, and the center seal device 13 are stopped (step 4).
Next, the control device 25 shrinks the downstream end of the transfer conveyor 10a to form a gap Sf (see FIG. 2B) with the discharge conveyor 10b (step 5).
When the detection device 33 disposed in the vicinity detects that the gap Sf is formed, subsequently, the gripping devices 21 and 22 grip the center seal Ss portion of the package 1 at the predetermined position. Then, the delivery conveyor 10b swings (tilts) as shown by the arrow Rr around the swing axis O1 at the upstream end as shown in FIG. 2 (b) (step 6).

In the above state, the first gusset forming device 16 and the respective gusset claws 16a, 17a of the second gusset forming device 17 in the front part and the rear part of the package 1 are positioned above the transport surface 10f The film sheet 3 is lifted up by a distance shown by the arrow R (see FIG. 4A), and the gusset G is formed on the film sheet 3 at a portion close to the front and back of the package 1 (step 7).
Further, in the above-mentioned state, the wrinkle removing device 18 is activated to remove wrinkles generated on the film sheet 3 in the vicinity of the portion to be top seal To and tail seal Ta (step 8).
Next, the top seal device 14 and the tail seal device 15 operate. That is, as illustrated in FIG. 4B, the sealing means 14a and the sealing means 15a (see FIG. 5) sandwich the film sheet 3 from both sides (see arrow Y), top seal To and tail seal Ta is performed (step 9).
In addition to the top seal To and the tail seal Ta, the heater of the cutting device Cu is activated, and the film sheet 3 for wrapping the first package 1 on the delivery conveyor 10b is separated from the film sheet 3 following it. As a result, the package A shown in FIG. 1 is completed.
At the first time, only the top seal To is executed because the package 1 does not exist on the delivery conveyor 10b.

  Next, the unloading conveyor 10b returns to the horizontal state from the swinging (tilting) state, and the lever 18a of the scraping device 18, the first gusset forming device 16 and the second gusset forming device 17, the transfer conveyor The downstream end of 10a returns to the original position (standby position), and the gripping of the gripping devices 21 and 22 is released (step 10).

Then, the delivery conveyor 10b, the conveyance conveyor 10a, the film sheet supply device 11, the driving roller pair 11c, and the center seal device 13 operate again, and the package A on the delivery conveyor 10b is on the downstream side. Carried out. In addition, since the to-be-packaged thing 1 does not exist on the said carrying out conveyor 10b at the time of the first, there is no said carrying out.
Further, with the unloading operation, the next packaged product 1 is moved from the transport conveyor 10a to the unloading conveyor 10b, and the series of operations described in the steps 4 to 10 are repeated, and the film sheet 3 is repeated. The placed package 1 is sequentially packaged in the reverse pillow form.

  As mentioned above, by performing the steps for a series of packaging by the packaging apparatus B, the above-mentioned packaging A (see FIG. 1) is completed.

  By the way, in the said embodiment, although the "Yakisoba bread" was mentioned as an example and demonstrated as the to-be-packaged thing 1, as a to-be-packaged thing, an upper part does not contact a film as much as possible, It may be something that you do not want to do, for example, “Shimeji”, which is agricultural produce, or “Omushi” or other items. In addition, even if the upper part is not in contact with the film as much as possible or something that is not desired to be pressed inward by the film, it can be packaged in the same form as described above.

  It is needless to say that the embodiment is merely one embodiment and can be implemented in various forms without departing from the technical concept of the present invention.

  The present invention can be used in the industrial field of packaging such as food and agricultural products.

A ... Package G ... Gazette Sf ... Clearance Su ... Clearance space Ss ... Center seal Ta ... Tail seal To ... Top seal 1 ... Packaged item 3 ... Film sheet

Claims (7)

A package suitable for packaging a package, which dislikes the contact between the inner surface and the upper part of the film sheet or does not urge the upper part from being pressed outward by the film sheet,
While the package is placed on the film sheet, the bottom and both side portions are covered with the film sheet from below, and the left and right portions of the film sheet with respect to the package are the package The left and right ends of the film sheet are disposed above the package with the
The film sheet is a center seal that seals the inner surfaces of the left and right side end portions of the film sheet above the package, and the left and right inner surfaces of the film sheet in front of the package. A top seal that seals the two sheets in a stacked state, and a tail seal that seals the left and right inner surfaces of the film sheet at the rear of the packaged object.
The top seal and the tail seal extend vertically at the front and rear of the package, respectively.
The center seal extends to the front and back of the package via a clearance space between the package and the package above the package,
Each of the top seal and the tail seal is connected to the center seal above the package so that the left and right sides of the top seal and the tail seal are flush with the left and right sides of the center seal. Center the center seal on the top of the package,
A package in which a gusset is formed on the bottom of the film sheet, between the top seal and the package, and between the tail seal and the package.
A packaging method suitable for packaging the package, wherein the upper part of the package does not contact as much as possible with the film sheet or is not desired to be pressed inward by the film sheet, and the package to be packaged is continuous a packaging method for packaging using a film sheet fed out by,
The articles to be supplied continuously are placed at intervals in the front and back direction to the central portion in the lateral width direction on the film sheet extending in a strip shape, and conveyed downstream, and the conveyance is carried out during the conveyance bending right and left side edge portions of the film sheet upwardly, the state in which the upper into the gap space of the packaged articles is formed, superimposed an inner surface of the left and right side edge portions of the film sheet at above the clearance space Making the film sheet cylindrical by forming a center seal that seals and extends back and forth along the transport direction ,
After forming the center seal, on the downstream side in the transport direction, the left and right inner surfaces of the film sheet are overlapped and sealed behind the packaged object, and the tail seal extending up and down rearwardly of the packaged object is sequentially The top seal is formed by overlapping and sealing the left and right inner surfaces of the film sheet in front of the subsequent packaged object and sequentially forming the top seal extending vertically to the front of the packaged object. And the package in which the center seal is erected, wherein the top seal and the tail seal are respectively connected to the center seal above the package so that the left and right sides of each of the tail seals are flush with the left and right sides of the center seal. The body is formed one after another,
In forming the tail seal and the top seal , a gusset is formed at the bottom of the film sheet in front of the portion forming the tail seal , and a gusset is formed at the bottom behind the portion forming the top seal. Packaging method for packaging.
Said tail seal and the top seal, obliquely to the conveying surface of the packaged articles to be positioned in the conveying direction behind the conveying direction forward lower side at the upper side, or with respect to the transport surface of the material to be packaged A packaging method according to claim 2, characterized in that it is formed vertically .
When or after the tail seal and the top seal are formed, wrinkles are generated in the seal portion by the tail seal and the top seal in the vicinity where the tail seal and the top seal are formed. The packaging method according to claim 2 or 3, wherein pick-up is performed.
What is claimed is: 1. A packaging device suitable for the packaging of articles which the upper part does not contact as much as possible with the film sheet or which is not desired to be pressed inward by the film sheet,
The packaging device is
A transport device provided with transport means for transporting the packaged object from upstream to downstream;
A film sheet feeding device for feeding the strip-like film sheet vertically aligned with the transport surface of the transport device;
The film sheet the strip-shaped film sheet fed from the film supply drum feeder and when the supply to the conveying surface side is the front-rear direction in the conveying direction of the articles to be packaged and the film sheet left and right ends above the film sheet And a former for bending the film sheet into a U-shape;
To the former in was flexion song U-shape said film sheet, said after sequentially placed apart from each other to be packaged together, the material to be packaged by superimposing the left and right inner surfaces of the film sheet A center seal device for forming a center seal which seals in the upper direction and extends back and forth along the transport direction ;
A tail seal device for forming a tail seal extending up and down rearward of the preceding package, between the spaced packages of the film sheet on which the center seal is formed;
A top seal device for forming a top seal extending up and down forward of the subsequent packages, between the separated packages of the film sheet on which the center seal is formed;
A first gusset forming apparatus to push the film sheet from the bottom of the film sheet at the front of the site at which the top seal of the top sealing device upwards,
And a second gusset forming device for pushing the film sheet upward from the bottom of the film sheet at the rear of the tail seal device at the site where the tail seal is to be performed .
The tail seal device superposes and seals the left and right inner surfaces of the film sheet at the rear of the preceding package, and sequentially forms the tail seal connected to the center seal to the package of the preceding package. At the same time, the top seal device superposes and seals the left and right inner surfaces of the film sheet in front of the subsequent packaged object, and sequentially connects the center seal to the package of the subsequent packaged object. By forming the top seal and the tail seal such that the left and right side surfaces of the top seal and the tail seal are respectively flush with the left and right side surfaces of the center seal, the center seal is located above the package. The packaging apparatus which forms sequentially the package which the said center seal | sticker connected which leads .
6. The packaging apparatus according to claim 5, further comprising a take-up device for preventing occurrence of wrinkles generated on a seal portion in the vicinity of the tail seal device and the top seal device.
The conveyance device is disposed, as the conveyance means, a first conveyance means provided up to a portion leading to the top seal device, and a downstream side of the first conveyance means, the downstream end of which can be tilted downward 6. The apparatus according to claim 5, further comprising: 2 conveying means, wherein the second conveying means can be swung down at the downstream end before the tail seal device operates. The packaging apparatus as described in 6.