JP2014156267A - Packing method and packing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing method capable of continuously arranging a packing object at a predetermined interval in a longer direction of a sheet material, by wrapping and storing packing objects of which surface is easily bruised such as peaches at predetermined places of the continuous sheet material, without relying on manpower.SOLUTION: A sheet material 11 continuing in a belt shape and having cushioning characteristics is prepared; a folded-overlapped part (folding-overlapping part) 12 is formed by a predetermined length in a longer direction of the sheet material 11, and is twisted at least once in a state where a tip part of the folded-overlapped part 12 is expanded to form a snap ring portion (snap ring part) 15 having a ring-shaped opening; and a storage space part 19 enclosed by a packing surface 18 and the snap ring part 15 is formed by taking out a part (packing surface) 18 of the surface of the folding-overlapping part 12 from the opening, so as to pack and store the packing object in the storage space part 19.

Description

  TECHNICAL FIELD The present invention relates to a packaging method and a packaging apparatus for housing a package material such as a fruit tree so as to be continuously tied to a packaging material extending in a strip shape.

  Conventionally, when fruits such as peaches are shipped, they are subjected to a process of inspecting quality by an outer shape inspection, an X-ray inspection, or the like, a process of storing them in a container such as cardboard. When transferring a packaged item that is carefully handled such as fruits and precision parts to various work processes, the packaged item should not be damaged, and the surface should not be damaged. It is carried out by wrapping it in a polyethylene foam net or a cushioning sheet material (Patent Document 1).

  In particular, for spherical fruits whose shape and size are not constant, prepare a square sheet material and wrap it around the sheet material, or tie a knot like a furoshiki wrap. It is common to wrap and attach.

  In addition, a package corresponding to the shape and size of each packaged item is prepared, and the process is transferred to an inspection process or a shipping process while being accommodated in the package (Patent Document 2). , 3).

JP 2004-67208 A JP 2010-249762 A JP 2001-252625 A

  However, when inspecting a produced or manufactured package by X-ray irradiation or visual inspection, it is necessary to change the direction of the package many times. In addition, the surface of the packaged object is easily scratched, and in some cases, it may become a defective product. In particular, in the case of fruits such as peaches, the commercial value may decrease. Conventionally, since such a packaging operation is performed manually, there is a difference in how to handle an object to be packaged, an operation speed, and the like depending on an operator's attention and proficiency level.

  Devices that automate the packaging of such items to be packaged are often used in the process of handling items to be packaged such as precision parts, but in the case of handling fresh products such as fruits, they may still rely on human hands. Many. As for the conventional packaging of fruits, etc., as described above, there are packaging methods and devices that simulate furoshiki wrapping, or methods and devices that can be stored in containers corresponding to the individual items to be packaged. Until now, a packaging method and a packaging / conveying apparatus that can be handled softly so as not to damage the packaged object without manual intervention have not been realized.

  Therefore, an object of the present invention is to wrap a package to be easily damaged on the surface of a peach or the like so as to wrap it in a predetermined portion of a continuous sheet material without manual intervention. It is providing the packaging method and packaging apparatus which can arrange | position a to-be-packaged object continuously for every predetermined space | interval with respect to a longitudinal direction.

  In order to solve the above-described problems, the packaging method of the present invention prepares a sheet material having a buffering property that is continuous in a strip shape, and forms a folded portion with a predetermined length in the longitudinal direction of the sheet material. , By forming a retaining ring part having a ring-shaped opening by twisting at least once in a state where the tip part of the folded part is widened, and pulling out a part of the surface of the folded part from the opening, An accommodation space portion surrounded by a part of the surface and the retaining ring portion is formed, and an object to be packaged is accommodated in the accommodation space portion.

  The packaging apparatus according to the present invention includes a sheet conveying unit that conveys a sheet material having a shock-absorbing property that is continuous in a belt shape along the longitudinal direction, and an accommodation space portion that accommodates an object to be packaged along the conveying direction of the sheet material. A sheet guide unit for forming a sheet material set in a roll shape on a conveyance lane and feeding the sheet material in a longitudinal direction, and the conveyance lane. Conveying driving means for driving the sheet while stopping at a predetermined position, and the packaging unit folds the sheet material conveyed by the sheet conveying unit so as to be pushed out at a predetermined position and overlapped by a predetermined length. By twisting at least once while alternately holding both ends of the folded end portion and the end portion of the folded portion. Retaining ring portion forming means for forming a ring-shaped retaining ring portion, and an accommodation space for forming an accommodation space portion of the packaged article by pulling out a part of the folded portion while expanding the formed retaining ring portion It is characterized by comprising a part forming means and a storing means for wrapping the packaged article by squeezing the container space after the packaged object is stored in the storage space part.

  In the packaging method according to the present invention, it is possible to wrap an article to be packaged such as a peach that is easily damaged on the surface so as to be softly tied along its shape without any manual intervention. In addition, a plurality of articles to be packaged can be continuously accommodated in a predetermined portion of the sheet material extending long in a band shape.

  In the packaging apparatus according to the present invention, in order to accommodate the article to be packaged by the packaging unit in a predetermined position of the sheet material while sequentially transporting the cushioning sheet material set in a roll shape by the sheet conveyance unit. The housing space can be automatically formed. Since the object to be packaged does not require a fastener or the like, and the object to be packaged can be packaged with only a sheet material, it can be directly conveyed to an inspection process such as X-ray without damaging the surface. In addition, since a plurality of objects to be packaged can be continuously packaged along the continuously supplied sheet material, the flow of the objects to be packaged between each process such as inspection and shipping becomes smooth, and work efficiency is improved. Is improved.

It is a figure which shows the whole sheet | seat material used with the packaging method of this invention. It is a figure which shows the folding overlap part formed in the said sheet | seat material. It is a figure which shows the state bent while twisting the said folding overlap part. It is a figure which shows the state joined except the front-end | tip part of the said folding overlap part. It is a figure which shows the state which twisted the front-end | tip part of the said folding overlap part. It is a figure which shows the state which twisted further the front-end | tip part of the said folding overlap part. It is a figure which shows the state which piled up the retaining ring part formed by twisting the said front-end | tip part on the overlapping part. It is a figure which shows the state which pulled out a part of folding part used as a packaging surface from opening of the said retaining ring part. It is a figure which shows the state which formed the accommodation space part by pulling out the said packaging surface further. It is a figure which shows the state which narrowed down the said accommodation space part. It is a figure which shows the state by which multiple accommodation space parts were formed along the longitudinal direction of the said sheet | seat material. It is a figure which shows the whole structure of the packaging apparatus of this invention. It is a figure which shows the operation | movement which conveys a sheet material. It is a figure which shows the operation | movement which forms a folding part in the said sheet | seat material. It is a figure which shows the operation | movement which pulls up the said folding part by the operation arm A. FIG. It is a figure which shows the operation | movement which rotates the front end side of the said folding part 180 degree | times around the k-axis by the operation arm A, and twists. It is a figure which shows the operation | movement which changes the said front end side to the operation arm B. FIG. It is a figure which shows the operation | movement which rotates the said front end side 180 degree | times around the k-axis further by the operation arm B, and twists. It is a figure which shows the operation | movement which rotates the said front end side 90 degree | times with the operation arm B, and turns it back. It is a figure which shows the operation | movement which raises the said front end side by twisting 90 degree | times to the i-axis periphery by the operation arm B. FIG. It is a figure which shows the operation | movement which changes the said front end side with the operation arm A. FIG. It is a figure which shows the operation | movement which twists 90 degree | times the surroundings of the said operation arm A changed around the i-axis. It is a figure which shows the operation | movement which hold | grasps the edge of the retaining ring part formed by the twisting operation | movement of the said front end side with the hand part of operation arms A, B, and C, and spreads. It is a figure which shows the operation | movement which passes the packaging surface of a folding part in the snap ring part expanded by pushing out the operation arm D to a k-axis direction. It is a figure which shows the operation | movement which forms an accommodation space part by further pulling out the said packaging surface from a retaining ring part. It is a figure which shows the operation | movement which narrows down the said accommodation space part. It is a figure which shows the state which descend | falls the said accommodation space part in which the to-be packaged object was accommodated toward the sheet | seat material by the side of a conveyance lane.

  FIG. 1 thru | or FIG. 11 shows the packaging procedure of the to-be packaged object by the packaging method of this invention. Here, it shows centering on the change state of the form of a sheet material. In this packaging method, a cushioning sheet material 11 having a width suitable for the size of the article to be packaged and continuously formed in a strip shape is used (FIG. 1). The sheet material 11 is formed using a flexible fibrous material such as a non-woven fabric, and has a certain buffer property by increasing the thickness or by stacking a plurality of sheets. Further, the buffering property can be improved by forming a plurality of mountain-shaped or bowl-shaped raised portions by drawing the surface.

  First, in the middle of feeding the tip of the prepared sheet material 11 in the longitudinal direction, a folded portion (folded portion) folded in half so as to pull out a part of the sheet material 11 in a direction perpendicular to the longitudinal direction. 12 is formed for a predetermined length (FIG. 2).

  While the base end portion 13 of the folded portion 12 is twisted 90 degrees with the base end portion 13 as a fulcrum, the folded portion 12 is folded back so as to be flush with the longitudinal plane of the sheet material 11 (FIG. 3). The folded portion 12 folded in this way is joined by thermal welding or the like except for a portion from the folded side (tip side) 14 to the joint side 17a set at a position lower by the length L1. The retaining ring portion 15 is formed by expanding the tip side 14 to the joining side 17a in a ring shape. Further, the portion below the joint side 17a is passed through the retaining ring portion 15 to form a packaging surface 18 for accommodating and wrapping the article to be packaged (FIG. 4).

  Next, one end portion 14a of the tip end side 14 is passed through the inside of the opening 16 and twisted so as to be rotated once, and further twisted so as to be rotated one more time (FIGS. 5 and 6). By performing such a twisting operation at least once, the retaining ring portion 15 having the opening 16 at the tip portion of the folded portion 12 is formed. Then, the retaining ring portion 15 is folded back so that the opening portion 16 overlaps the packaging surface 18 of the folded portion 12 with the joint side 17a as the center (FIG. 7).

  After the snap ring 15 is folded back at a position where the opening 16 overlaps the packaging surface 18 of the folded portion 12, the packaging surface 18 is pulled out from the opening 16 (FIG. 8). An accommodation space for accommodating an object to be packaged between the inside of the packaging surface 18 and the retaining ring portion 15 by further pulling out the packaging surface 18 thus drawn out from the opening 16 of the retaining ring portion 15. Part 19 is formed (FIG. 9).

  After inserting an article to be packaged (not shown) into the formed accommodation space 19, the accommodation space 19 is narrowed by pulling the folded portion 12 toward the base end 13 while pressing the retaining ring portion 15. Then, the entire article to be packaged is accommodated so as to be wrapped in the packaging surface 18 having a cushioning property (FIG. 10). In the present embodiment, the accommodation space 19 is suitable for accommodating fruit peaches.

  The sheet material 11 is sent out at a predetermined interval in the longitudinal direction, and the procedure shown in FIG. 2 to FIG. A plurality of packaging parts 20 each having an accommodation space 19 for accommodating an object can be formed (FIG. 11). In this way, quality inspection or the like by X-ray irradiation can be carried out while transporting an object to be packaged such as peach accommodated in each accommodating space 19 of the sheet material 11 that extends continuously. In addition, during the inspection, the direction can be changed as necessary without bringing the inspection equipment or the like into contact with the package.

  In addition, since the sheet | seat material 11 which wraps the to-be-packaged item becomes a buffer material when shipping after completing each process of the said inspection etc., boxing etc. can be performed as it is. In that case, it can accommodate in a predetermined | prescribed quantity unit by cut | disconnecting the sheet | seat material 11 between each to-be-packaged goods as needed.

  FIG. 12 shows an embodiment of a packaging apparatus 31 that automates the packaging method shown in FIGS. 1 to 11, and shows the initial arrangement of main components. In addition, about the structure of the part connected to a post process, and accompanying components, such as a control part, abbreviate | omits illustration and demonstrates.

  The packaging device 31 has a sheet conveying unit 33 that conveys the sheet material 11 into the housing 32 and a part of the conveyed sheet material 11 that is folded in two, and is welded. And a packaging unit 35 that forms an accommodating space 19 for accommodating an article to be packaged. The packaging device 31 uses a non-woven fabric having a width of about 20 cm for the sheet material 11 and has a configuration suitable for handling fruits, particularly “peaches” whose surface is easily damaged.

  As shown in FIG. 12, the sheet conveying unit 33 includes a sheet attachment portion 36 for setting a long sheet material 11 in a roll shape for wrapping an article to be packaged, and a sheet material fed from the sheet attachment portion 36. 11, a sheet guide means having a loop-shaped conveyance lane 37 for conveying 11, a pulley 38 provided along the inner surface of the conveyance lane 37, and a rotation motor (not shown) for rotating the pulley 38. Transportation driving means for driving the transportation lane 37 while stopping at a predetermined position. The transport lane 37 is provided with a guide arm 30 having a pair of gripping shafts 39 for gripping the sheet material 11 at predetermined intervals so that the sheet material 11 can be opened and closed. It is conveyed toward the packaging unit 35. The guide arm 30 has a role as a pressing member when the sheet material 11 is bent or twisted by operation arms A to D described later.

  The packaging unit 35 includes a folded portion forming unit that forms a folded portion 12 having a predetermined length by stacking the sheet material 11 conveyed by the sheet conveying unit 33 so as to be pushed out at a predetermined position. A snap ring portion forming means for forming the ring-shaped snap ring portion 15 and the formed snap ring portion 15 are widened by twisting at least once while alternately holding both ends of the front end side 14 of the folded portion 12. However, an accommodation space portion forming means for forming an accommodation space portion 19 for an object to be packaged by pulling out the packaging surface 18 set in an intermediate portion of the folded portion 12 below the retaining ring portion 15, and the accommodation After the object to be packaged is accommodated in the space part 19, an accommodation means for enclosing the object to be packaged by squeezing the accommodation space part 19 is provided.

  As shown in FIG. 12, the folded portion forming means is provided in a direction orthogonal to the conveying direction of the sheet material 11, guides the sheet material 11, and welds the guided sheet material 11. This is performed by the sheet welding portion 34 having the welding arm 40. The welding arm 40 holds a portion pulled out so that a part of the sheet material 11 conveyed by the conveyance lane 37 is folded in half. This operation is performed by an operation arm provided in the packaging unit 35. By passing the welding arm 40, a folded portion 12 having a predetermined length as shown in FIG. 2 is formed. Further, the welding arm 40 is provided with a heat source 41, and the heat source 41 performs welding while leaving the front end portion of the folded portion 12.

  The retaining ring portion forming means, the accommodation space portion forming means and the accommodation means are performed by three operation arms A, B, C, and D as shown in FIG. The operation arms A, B, and C have a common configuration, and are a first knuckle portion 42 attached to the casing 32 of the packaging device 31, a first arm portion 43 extending from the first knuckle portion 42, and the first arm portion 43. A second knot 44 provided at the tip of the arm 43, a second arm 45 extending from the second knot 44, a third knot 46 provided at the tip of the second arm 45, It is comprised with the hand part 47 provided via the 3 node part 46. FIG.

  The first joint portion 42 is attached to a pedestal portion that is rotatable within a range of 360 degrees with respect to the housing 32 so that one end of the first arm portion 43 is rotatable within a range of 180 degrees. The portion 43 and the second arm portion 45 are attached to be rotatable within a range of 180 degrees via the second knot portion 44. The hand portion 47 has a pair of gripping shafts 48 extending in parallel, and is freely rotatable via a third knot portion 46 provided at the tip of the second arm portion 45. As a result, each of the operation arms A, B, and C enables three-dimensional movement similar to a human arm. Further, the pair of gripping shafts 48 can be opened and closed between a position where the sheet material 11 is gripped and a position where the sheet material 11 is separated, and an appropriate gripping force is obtained according to the thickness of the sheet material 11 and each operation. It is driven to open and close.

  The operation arm A performs an operation of forming the folded portion 12 having a length necessary for individually packaging the objects to be packaged from the sheet material 11 conveyed by the conveyance lane 37. In addition, the operation arms B and C together with the operation arm A form a retaining ring portion 15 for accommodating an article to be packaged around the folded side (tip side) 14 of the formed folded portion 12. The operation arm D causes the retaining ring portion 15 to project the packaging surface 18 of the folded portion 12 to form an accommodation space portion 19 for accommodating an object to be packaged.

  Next, a series of operations of the packaging apparatus 31 including the sheet conveying unit 33 and the packaging unit 35 will be described with reference to FIGS. In addition, three-dimensional coordinates (i-axis, j-axis, k-axis) are used for the direction of each operation, and FIGS. 1 to 11 are referred to for the mode of each operation of the sheet material 11. The hand portions 47 constituting the operation arms A, B, and C will be described as hand portions Ah, Bh, and Ch, respectively.

  First, as shown in FIGS. 12 and 13, the roll-shaped sheet material 11 is set in the sheet mounting portion 36, the leading end of the sheet material 11 is pulled out, and the guide arm 30 provided in the conveyance lane 37 is Grip through a pair of gripping shafts 39. In this way, after the attachment of the sheet material 11 is completed, the pulley 38 is driven to rotate, whereby the sheet material 11 is sent out toward the position where the operation arm A is on standby. At this time, the operation arm A stands by above the direction in which the hand portion Ah is orthogonal to the conveying direction of the sheet material 11.

  As shown in FIG. 14, when the sheet material 11 passes in front of the sheet welding portion 34, the conveyance lane 37 is temporarily stopped. Then, the hand portion Ah of the operation arm A is lowered toward the sheet material 11 at a position facing the welding arm 40, and the sheet material 11 is gripped by the pair of gripping shafts 48 provided in the hand portion Ah. Then, while the sheet material 11 is gripped by the pair of gripping shafts 48, the sheet material 11 is pulled out toward the sheet welding portion 34 provided in the k-axis direction orthogonal to the conveying direction of the sheet material 11. By passing between the plurality of welding arms 40 provided in the sheet welding portion 34, the folded portion 12 is formed by being folded in half to a predetermined length and welded by the heat source 41. In addition, since the front-end | tip part of the said folding part 12 becomes the accommodation space part 19 which consists of the retaining ring part 15 which accommodates to-be-packaged goods, as shown in FIG. 4, except from the front end side 14 to the joining side 17a. Welded. Therefore, it is pulled out to a position disengaged from the welding arm 40 so as not to be welded between the tip side 14 and the joining side 17a.

  After the folded portion 12 is welded by the sheet welded portion 34, as shown in FIG. 15, the operation arm A is driven and the front end side 14 of the folded portion 12 is held by the hand portion Ah. Fold at 90 degrees in the (axis) direction. By folding the hand portion Ah 90 degrees around the k-axis, the folded portion 12 is held in an inverted T shape with respect to the sheet material 11 on the conveyance lane 37 side. This operation is performed while being supported by the gripping shafts 39 of the pair of guide arms 30 located between the base end portion 13 of the folded portion 12.

  As shown in FIG. 16, after the front end side 14 of the folded portion 12 held by the hand portion Ah is rotated by 180 degrees about the k axis and twisted, the operation arm B is placed at a position facing the hand portion Ah. The hand part Bh is moved to stand by. Then, as shown in FIG. 17, the tip side 14 of the folded portion 12 is held and held by the hand portion Bh of the operation arm B, and then further rotated 180 degrees around the k axis as shown in FIG. Twist.

  As shown in FIG. 19, after the front end side 14 of the folded portion 12 held by the hand portion Bh of the operation arm B is rotated 90 degrees around the j-axis and folded forward, as shown in FIG. Rotate 90 degrees around the i-axis and raise to the near side. At this time, the tip of the hand portion Bh is in a state facing the j-axis direction. On the other hand, the hand part Ah of the operation arm A is moved to a position facing the hand part Bh of the operation arm B and is put on standby.

  As shown in FIG. 21, after the front end side 14 of the folded portion 12 is held and held by the hand portion Ah of the operation arm A, it is twisted 90 degrees around the i-axis as shown in FIG.

  Next, as shown in FIG. 23, the edge of the retaining ring portion 15 of the folded portion 12 formed by the twisting operation of the front end side 14 of the folded portion 12 is connected to each hand portion Ah, A ring-shaped opening 16 is formed so as to be grasped and spread by Bh and Ch. Then, as shown in FIG. 24, by pushing the operation arm D in the k-axis direction, the packaging surface 18 of the folded portion 12 is pulled out from the opening 16 of the snap ring 15 that has been spread.

  As shown in FIG. 25, after the packaging surface 18 of the folded portion 12 is pushed out from the opening 16 of the retaining ring portion 15, the pushed packaging surface 18 is changed by the hand portion Ch of the operation arm C and the packaging is performed. Pull out surface 18 further. As a result, an accommodation space 19 for accommodating an object to be packaged is formed inside the drawn packaging surface 18.

  As shown in FIG. 26, after inserting an article to be packaged (not shown) into the formed accommodation space 19, the retaining ring 15 is joined by attracting the hand parts Ah, Bh, Ch. The accommodation space 19 is squeezed so as to wrap the article to be packaged.

  Finally, as shown in FIG. 27, the packaging unit 20 in which the article to be packaged is held is lowered toward the sheet material 11 on the conveyance lane 37 side while being held by the hand unit Ah. Thus, the packaged material is accommodated in the middle of the continuous sheet material 11, and the sheet material 11 can be transported and moved along the transport lane 37 as it is.

  By performing the operations from FIG. 13 to FIG. 27 in accordance with the feeding timing of the sheet material 11, as shown in FIG. 11, the packaged material is accommodated with respect to the sheet material 11 extending in a strip shape. A plurality of packaging portions 20 having the accommodating space portions 19 can be formed at predetermined intervals. Since the sheet material 11 in which the plurality of packaging parts 20 are formed in this way is formed with only a cushioning material such as a non-woven fabric, it can be continuously conveyed as it is to an inspection process such as X-rays. it can. Moreover, the said package part 20 can be packaged by the unit of one piece or a plurality of units by cut | disconnecting the said package in a predetermined location.

  The packaging device 31 of the present invention sets the width of the sheet material in accordance with the shape and size of the “peach” that is to be packaged, and sets the conveyance timing of the sheet material and the operation of each operation arm as a program. By this, it can convey and package efficiently so that a package etc. may not be damaged. In addition, by appropriately selecting a sheet material and changing each operation setting of the sheet conveyance unit and the packaging unit, it is possible to deal with other objects to be packaged having different shapes and sizes other than “peach”.

A, B, C, D Operation arm Ah, Bh, Ch Hand part 11 Sheet material 12 Folding part 13 Base end part 14 Front end part 14a End part 15 Retaining ring part 16 Opening part 17a Joining side 18 Packaging surface 19 Storage space part DESCRIPTION OF SYMBOLS 20 Packaging part 30 Guide arm 31 Packaging apparatus 32 Housing 33 Sheet conveyance unit 34 Sheet welding part 35 Packaging unit 36 Sheet attachment part 37 Conveyance lane 38 Pulley 39 Holding shaft 40 Welding arm 41 Heat source 42 First joint part 43 First arm part 44 Second joint 45 Second arm 46 Third joint 47 Hand 48 Gripping shaft

Claims (8)

Prepare a sheet material that has a continuous buffer property in a belt shape,
The folding part is formed for a predetermined length with respect to the longitudinal direction of the sheet material,
Forming a retaining ring portion having a ring-shaped opening by twisting at least once in a state where the tip portion of the folded portion is expanded,
By pulling out a part of the surface of the folded part from the opening, an accommodation space part surrounded by a part of this surface and the retaining ring part is formed,
A packaging method characterized in that an article to be packaged is accommodated in the accommodating space.   The packaging method according to claim 1, wherein the packaging object is wrapped by narrowing the accommodation space part after the packaging object is accommodated in the accommodation space part.   The sheet material is sent out at a predetermined interval in the longitudinal direction, a folding overlap portion is formed for each of the sent intervals, and an accommodation space portion in which an object to be packaged is accommodated is formed in the folding portion. The packaging method according to claim 1, wherein a plurality of housing spaces are arranged along the longitudinal direction of the material. A sheet conveying unit that conveys a sheet material having a buffer property continuous in a belt shape along the longitudinal direction;
A packaging device comprising: a packaging unit that forms an accommodation space for accommodating an article to be packaged along a conveying direction of the sheet material;
The sheet transport unit is a sheet guide means for feeding a sheet material set in a roll shape on a transport lane in a longitudinal direction;
Transport driving means for driving while stopping the transport lane at a predetermined position,
The packaging unit includes a folded portion forming means for forming a folded portion having a predetermined length by overlapping the sheet material conveyed by the sheet conveying unit so as to be pushed out at a predetermined position;
Retaining ring portion forming means for forming a retaining ring portion having a ring-shaped opening by twisting at least once while alternately changing the front end side of the folded portion,
An accommodation space forming means for forming an accommodation space portion of an article to be packaged by pulling out a part of the surface of the folded portion from the opening while expanding the formed retaining ring portion,
A packaging apparatus comprising: a housing unit that wraps the package object by squeezing the package space after the package object is stored in the package space.   In the sheet material, a plurality of accommodation space portions of an object to be packaged formed by the packaging unit are formed along the longitudinal direction for each portion continuously sent out at a predetermined interval by the sheet conveying unit. Item 5. The packaging device according to Item 4. The packaging unit includes an operation arm having a plurality of node portions, arm portions, and a hand portion having a pair of gripping shafts that can be opened and closed at the tip,
The hand portion is moved toward the sheet material by the plurality of node portions and arm portions, and the folded portion forming means, the retaining ring portion forming means, and the grip material are gripped by a pair of gripping shafts provided in the hand portion, and The packaging device according to claim 4, wherein a series of operations of the storage space forming means is performed.   The said sheet | seat material is a packaging apparatus of Claim 4 which has the width | variety corresponding to a to-be-packaged object, and uses the nonwoven fabric formed continuously long in strip | belt shape.   The packaging device according to claim 7, wherein the sheet material includes a plurality of raised portions processed into a mountain shape or a bowl shape.

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