JP2013233963A - Packaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging device capable of stably conveying a mount on which a product is placed.SOLUTION: In a packaging device 1, when a base 2 on which an article 3 is placed is moved from a conveying direction upstream side to a downstream side, the base 2 receives force in the opposite direction of the conveying direction from a film 24. A conveying roller 41 is rotated while a tooth part sticks into the base 2 to convey the base 2. A biasing roller 42 biases the base 2 toward the conveying roller 41. Accordingly, the conveying roller 41 properly conveys the base 2 without idle rotation. Thus, the packaging device 1 can stably convey the base 2 on which the article 3 is placed, and the packaging device 1 can thereby execute stable packaging operation.

Description

  The present invention relates to a packaging device for packaging an article to be packaged.

  2. Description of the Related Art Conventionally, a packaging machine is known that transports a product to a predetermined position along a belt conveyor and packages the product with a plastic film at the predetermined position (see Patent Document 1). In such a packaging machine, a product can be placed on a plate-shaped mount, and the mount and the product can be packaged with a film. In this case, the mount on which the product is placed is transported in the transport direction by the belt conveyor.

JP-A-1-111604

  However, when a load is applied to the mount in the direction opposite to the transport direction, the mount slips on the belt conveyor and the mount cannot be transported stably.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a packaging device that can stably transport a mount on which a product is placed.

  In order to solve the above problems, a packaging apparatus according to the present invention is a packaging apparatus that conveys a pedestal having a plate-like portion on which an article can be placed and wraps the article and the pedestal with a film-like package. , A conveying means for conveying the pedestal, which is disposed on one side of the orthogonal direction orthogonal to the conveying surface with respect to the conveying surface, which is a surface through which the pedestal passes, and is a first disc-shaped disk portion And one or more first protrusions projecting outward from the peripheral wall of the first disc part and having a sharp tip, and the first circle in a state where the first protrusion is pierced into the pedestal. A conveying means that conveys the pedestal by rotating the plate portion, and is disposed at a position opposite to the conveying means on the other side in the orthogonal direction with respect to the conveying surface, and biases the pedestal to the one side. Biasing means.

  According to this invention, a base is conveyed by the conveyance means arrange | positioned at the one side of the orthogonal direction orthogonal to a conveyance surface. The pedestal is urged in the direction toward one side by the urging means arranged at the other side in the orthogonal direction and at a position facing the conveying means. Accordingly, the transport unit can stably transport the pedestal even when a load in the direction opposite to the transport direction is applied to the pedestal.

  In this invention, the said conveyance means may be comprised from a spur roller, and the said 1st projection part may be the tooth | gear part provided in the said spur roller. In this case, the teeth provided on the spur roller pierce the pedestal. The spur roller can convey the pedestal by rotating in a state where the tooth portion is stuck in the pedestal.

  In the present invention, the biasing means may be constituted by a rubber roller that rotates while biasing the pedestal. In this case, the rubber roller can urge the pedestal while following the conveyance of the pedestal.

  In the present invention, the urging means may include a spring for urging the rubber roller on the one side. In this case, since the force for pressing the rubber roller against the pedestal can be adjusted by the spring, it can be conveyed without damaging the pedestal.

  In the present invention, the urging means includes a disc-shaped second disc portion, and one or more second projecting portions projecting outward from the peripheral wall of the second disc portion and having sharp points. And the second disc portion may rotate in a state where the second protrusion is pierced into the pedestal. In this case, the urging means rotates with the second protrusion pierced into the pedestal. Since the first protrusion and the second protrusion pierce and rotate from both sides of the plate-like portion of the pedestal, the pedestal can be transported more stably.

It is the perspective view which looked at the packaging apparatus 1 from the conveyance direction downstream. It is the perspective view which looked at the packaging apparatus 1 from the conveyance direction upstream. FIG. 3 is a perspective view of the packaging device 1 in which the first receiving tray 12 swings and the receiving surface is vertical. 2 is an exploded perspective view of the packaging device 1. FIG. It is a figure which shows the conveyance roller 41 and the urging roller. It is a figure which shows a mode before the packaging to the base 2 and the articles | goods 3 is started. It is a figure which shows a mode that the base 2 and the articles | goods 3 are packaged. It is a figure which shows a mode that the base 2 and the articles | goods 3 are packaged. It is a figure which shows a mode that the base 2 and the articles | goods 3 are packaged. It is a figure which shows a mode that the base 2 and the articles | goods 3 are packaged. It is a figure which shows a mode that the base 2 and the articles | goods 3 are packaged. It is a figure which shows the conveyance roller 41 and the urging | biasing roller 43 in a 1st modification. It is a figure which shows the conveyance roller 41 and the urging | biasing roller 44 in a 2nd modification.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The outline | summary of the packaging apparatus 1 is demonstrated with reference to FIGS. The packaging device 1 includes a film 24 (see FIG. 7) together with a base 2 (see FIG. 7) on an article 3 (see FIG. 7) placed on a base 2 made of a mount having a predetermined rectangular thickness in plan view and the like. 7)). The packaging device 1 packages the pedestal 2 and the article 3 while conveying the pedestal 2 from the upper right side of FIG. 1 toward the lower left side. Hereinafter, the upper side, the lower side, the lower right side, and the upper left side in FIG. 1 are referred to as the upper side, the lower side, the right side, and the left side of the packaging device 1, respectively. The diagonally upper right side and the diagonally lower left side in FIG. 1 are referred to as the upstream side in the transport direction and the downstream side in the transport direction, respectively.

  The packaging device 1 includes side plate portions 111 and 112 erected upward from the left and right end portions of the bottom portion 4 having a rectangular shape in plan view. The side plate portion 111 is provided on the right side of the packaging device 1. The side plate portion 112 is provided on the left side of the packaging device 1. Hereinafter, the side plate portions 111 and 112 are collectively referred to as the side plate portion 11. The shape of the side plate portion 11 is a substantially rectangular plate shape whose longitudinal direction is the vertical direction. The inner surfaces of the side plate portions 111 and 112 are opposed to each other. The side plate portions 111 and 112 support the film cassette 21 at the upper end and the portion sandwiched between the side plate portions 111 and 112. The film cassette 21 accommodates the wound film 24 (see FIG. 6) inside. The pedestal 2 on which the article 3 is placed is transported and packaged from below the film cassette 21 and between the side plate portions 111 and 112 from the upstream side toward the downstream side in the transport direction.

  The side plate portion 11 supports the first cradle 12 in a swingable manner at an end portion on the downstream side in the transport direction. The shape of the first cradle 12 is a substantially rectangular plate shape whose longitudinal direction is the left-right direction. The first cradle 12 swings with the upstream side in the transport direction as a fulcrum. The first cradle 12 receives the pedestal 2 and the article 3 on which the packaging with the film 24 is completed on the upper surface.

  As shown in FIG. 2, the side plate portion 11 supports the second receiving tray 13 in a swingable manner at an end portion on the upstream side in the transport direction. The shape of the second cradle 13 is a substantially rectangular plate shape whose longitudinal direction is the left-right direction. The second receiving tray 13 swings with the downstream side in the transport direction as a fulcrum. The second receiving tray 13 receives the pedestal 2 conveyed from the upstream side in the conveying direction toward the side plate portions 111 and 112 on the upper surface. Hereinafter, the upper surfaces of the first receiving tray 12 and the second receiving tray 13 are also referred to as “receiving surfaces”.

  As shown in FIGS. 1 and 2, when the first cradle 12 and the second cradle 13 swing and the receiving surface becomes horizontal, the receiving surface of the first cradle 12 and the second cradle 13 The receiving surface forms the same plane. The base 2 on which the article 3 is placed is transported from the upstream side toward the downstream side in the transport direction on the formed plane. The packaging device 1 is in a state where the article 3 and the pedestal 2 can be packaged with the film 24. Hereinafter, the plane formed by the receiving surfaces of the first receiving tray 12 and the second receiving tray 13 and through which the transported pedestal 2 passes is referred to as a “transporting surface 100 (see FIG. 5)”. A path along which the pedestal 2 passes along the transport surface 100 is referred to as a “transport path”.

  On the other hand, as shown in FIG. 3, when the first cradle 12 and the second cradle 13 are swung and the receiving surface is vertical, the first cradle 12 and the second cradle 13 have the side plate portions 111. , 112 is blocked. Thereby, the space required for installing the packaging device 1 can be reduced. Further, the packaging device 1 can be easily carried.

  As shown in FIGS. 1 and 4, the packaging device 1 includes guide rollers 71 and 73. The guide rollers 71 and 73 are provided between the side plate portions 111 and 112 and below the conveying surface 100. The guide roller 71 is provided on the upstream side in the transport direction, and the guide roller 73 is provided on the downstream side in the transport direction. The guide roller 71 includes a shaft portion 711 and a plurality of roller portions 712. The guide roller 73 includes a shaft portion 731 and a plurality of roller portions 732. The shaft portions 711 and 731 are bridged between the side plate portions 111 and 112. The plurality of roller portions 712 are provided at equal intervals in the axial direction of the shaft portion 711. The plurality of roller portions 732 are provided at equal intervals in the axial direction of the shaft portion 731. The guide rollers 71 and 73 support the pedestal 2 conveyed by the conveyance roller 41 and the urging roller 42 (described later) between the first cradle 12 and the second cradle 13 from below. The guide rollers 71 and 73 guide the pedestal 2 transported from the upstream side toward the downstream side in the transport direction from the second cradle 13 to the first cradle 12.

  The packaging device 1 includes a holding roller 72. The shape of the holding roller 72 is a cylindrical shape. The holding roller 72 extends in the left-right direction. The right end portion of the holding roller 72 is rotatably supported by the holding portion 611. The left end portion of the holding roller 72 is rotatably supported by the holding unit 612. Hereinafter, the holding units 611 and 612 are collectively referred to as the holding unit 61. The holding part 61 can swing. The holding unit 61 can be switched between a state in which the holding roller 72 is disposed in the vicinity of the downstream side in the transport direction of the guide roller 71 and a state in which the holding roller 72 is spaced downward with respect to the guide roller 71. The holding roller 72 can be sandwiched between the holding roller 72 and the guide roller 71 in a state where the holding roller 72 is arranged in the vicinity of the downstream side in the transport direction of the guide roller 71.

  The packaging device 1 includes conveying rollers 411 and 412 and urging rollers 421 and 422. The conveying roller 411 and the urging roller 421 are provided on the left side of the side plate portion 111 (see FIG. 1). The conveying roller 412 and the urging roller 422 are provided on the right side of the side plate portion 112 (see FIG. 1). Hereinafter, the transport rollers 411 and 412 are collectively referred to as the transport roller 41. The urging rollers 421 and 422 are collectively referred to as an urging roller 42.

  The conveyance rollers 411 and 412 and the urging rollers 421 and 422 are arranged at positions facing each other across the conveyance surface 100 that is a surface through which the base 2 passes. The conveyance roller 411 and the urging roller 421 are in contact with the right side of the base 2 disposed along the conveyance surface 100. The conveyance roller 412 and the urging roller 422 are in contact with the left side of the base 2 disposed along the conveyance surface 100. The urging roller 42 urges the base 2 from the upper side to the lower side of the transport surface 100. With the urging roller 42 urging the pedestal 2, the transport roller 41 rotates. The base 2 is transported by the rotation of the transport roller 41.

  The packaging device 1 includes a guide roller 31 and an auxiliary roller 32. The shapes of the guide roller 31 and the auxiliary roller 32 are cylindrical. The guide roller 31 and the auxiliary roller 32 extend in the left-right direction. The guide roller 31 includes a cylindrical portion and a shaft portion. The shaft portion extends in the left-right direction. The cylindrical portion is provided along the peripheral wall of the shaft portion. The cylindrical portion is rotatable with respect to the shaft portion. The auxiliary roller 32 includes a cylindrical portion and a shaft portion. The shaft portion extends in the left-right direction. The cylindrical portion is provided along the peripheral wall of the shaft portion. The cylindrical portion is rotatable with respect to the shaft portion.

  The packaging device 1 includes first support portions 331 and 332 and a second support portion 51. Hereinafter, the first support portions 331 and 332 are collectively referred to as the first support portion 33. The first support portion 33 is movable in the vertical direction while supporting the guide roller 31 and the auxiliary roller 32. The second support portion 51 is movable in the transport direction while supporting the guide roller 31. The guide roller 31 is passed between the first support part 33 and the second support part 51. Hereinafter, the path of the guide roller 31 that moves in the vertical direction by the movement of the first support portion 33 is referred to as a first path. The path of the guide roller 31 that moves in the transport direction by the movement of the second support portion 51 is called a second path.

  The conveyance roller 41 will be described. As shown in FIG. 5, the transport roller 41 includes a spur roller 410. The spur roller 410 includes a shaft 414, a disc portion 415, and a tooth portion 413. The disc part 415 is formed in a circular plate shape. A rod-shaped shaft 414 passes through the center of the disc portion 415 in a direction orthogonal to the plane of the disc portion 415. As the shaft 414 rotates, the disk portion 415 rotates. The tooth portion 413 projects radially from the disc portion 415 and has a sharp tip. The tooth part 413 and the disk part 415 are integrally formed and constitute a spur roller 410. The tooth part 413 pierces the base 2. The disc portion 415 rotates with the tooth portion 413 sticking into the base 2. As a result, the spur roller 410 can appropriately transport the pedestal 2 along the transport path. For example, in FIG. 5, when the spur roller 410 rotates counterclockwise, the pedestal 2 is transported from the right side (upstream side in the transport direction) to the left side (downstream side in the transport direction) in FIG.

  The urging roller 42 will be described. As shown in FIG. 5, the urging roller 42 includes a rubber roller 420 and a roller support portion 424. The rubber roller 420 includes a shaft 426, a disc part 425, and an outer peripheral part 423. The disc part 425 is formed in a circular plate shape. A rod-shaped shaft 426 passes through the center of the disc portion 425 in a direction orthogonal to the plane of the disc portion 425. As the shaft 426 rotates, the disk portion 425 rotates. The outer peripheral portion 423 is an annular rubber and is provided on the outer periphery of the disc portion 425. A plurality of irregularities are provided on the peripheral wall of the outer peripheral portion 423. The rubber roller 420 is in contact with the upper surface of the base 2. The rubber roller 420 rotates following the pedestal 2 conveyed by the conveyance roller 41 while urging the pedestal 2 downward.

  The roller support portion 424 supports the rubber roller 420. The roller support portion 424 includes a support bar 4241 and a cover 4242. The lower end of the support bar 4241 formed in a bar shape is connected to the cover 4242. A recess 4243 is provided in the lower part of the cover 4242. The recess 4243 is in contact with the shaft 426 of the rubber roller 420.

  With reference to FIGS. 6 to 11, the operation of the packaging device 1 when the base 2 and the article 3 are packaged by the film 24 will be described.

  FIG. 6 shows a state of the packaging device 1 before packaging is started. An arrow 91 indicates the first route, and an arrow 92 indicates the second route. Hereinafter, the first route 91 and the second route 92 are referred to. The first support portion 33 (see FIG. 4) is disposed at the uppermost position, and the guide roller 31 is disposed at the uppermost position of the first path 91. The 2nd support part 51 is arrange | positioned in the position of the most upstream side.

  First, the user manually draws out the film 24 discharged from the film discharge port 26 of the film cassette 21 downward. The user pulls out the end of the drawn film 24 opposite to the film cassette 21 side (hereinafter referred to as “the front end of the film 24”) to the lower side of the transport surface 100 and is arranged in the vicinity of the downstream side of the guide roller 71. To do. The user operates the packaging device 1 so that the holding unit 61 swings and the holding roller 72 is arranged in the vicinity of the downstream side of the guide roller 71. The leading end of the film 24 drawn out from the film cassette 21 is sandwiched from both sides in the transport direction by the guide roller 71 and the holding roller 72. The film 24 extends straight between the side plate portions 11 in the vertical direction, and the film 24 and the transport surface 100 intersect.

  As shown in FIG. 7, the user places the plate-like base 2 on which the article 3 is placed on the receiving surface of the second receiving base 13. The user sends the pedestal 2 toward the downstream side. The downstream end of the pedestal 2 passes over the second cradle 13, the guide roller 71, and the holding roller 72. Further, the user sends the pedestal 2 toward the downstream side. The downstream end of the pedestal 2 contacts the film 24 and pushes the film 24 downstream. A force is applied from the film 24 to the pedestal 2 in the direction opposite to the conveying direction. The packaging device 1 starts the rotation of the transport roller 41. The downstream end of the pedestal 2 reaches the transport unit 40.

  As shown in FIG. 8, the transport roller 41 and the urging roller 42 sandwich the left and right ends of the base 2 from above and below. The urging roller 42 urges the pedestal 2 downward, and the pedestal 2 is pressed against the conveying roller 41. A tooth portion 413 provided on the spur roller 410 of the transport roller 41 pierces the base 2. The spur roller 410 rotates without idling. The conveyance roller 41 conveys the base 2 toward the downstream side. The pedestal 2 moves further downstream. As the base 2 moves downstream, the downstream ends of the base 2 and the article 3 are pressed against the film 24. The film 24 is in close contact with the base 2 and the article 3 at a position covering the downstream side of the base 2 and the article 3.

  When a force in a direction toward the downstream side is applied to the film 24, the leading end of the film 24 is separated from the guide roller 71 and the holding roller 72. The leading edge of the film 24 moves following the base 2 and passes between the base 2 and the holding roller 72. The holding roller 72 presses the front end of the film 24 against the lower surface of the base 2 from below. The leading end of the film 24 is bonded to the downstream side and the lower surface of the base 2.

  The transport unit 40 continues to transport the base 2 to the downstream side. As shown in FIG. 9, the film 24 is disposed at a position covering the upper side of the base 2 and the article 3. The film 24 is in close contact with the upper surface of the article 3. The upstream end of the base 2 passes over the guide roller 71 and the holding roller 72. Furthermore, the conveyance part 40 conveys the base 2 downstream. The upstream end of the base 2 crosses the first path 91 (see FIG. 9). The packaging device 1 stops the rotation of the conveyance roller 41. The movement of the base 2 stops.

  As shown in FIG. 10, after the movement of the pedestal 2 is stopped, the packaging device 1 swings the holding portion 61 in a direction in which the holding roller 72 is separated from the guide roller 71. The holding roller 72 is separated from the guide roller 71. Next, the packaging device 1 moves the first support portion 33 in a state where the guide roller 31 and the auxiliary roller 32 are supported from the uppermost side to the lowermost side. The guide roller 31 moves from the uppermost side to the lowermost side along the first path 91 (see FIG. 6) while being in contact with the film 24 disposed below from above. The film 24 is guided downward by the guide roller 31 and disposed at a position covering the upstream side of the base 2 and the article 3. The guide roller 31 is transferred from the first support part 33 to the second support part 51 by the first support part 33 moving to the lowest side. Instead of the first support portion 33, the second support portion 51 supports the guide roller 31.

  Next, as shown in FIG. 11, the packaging device 1 moves the second support portion 51 from the most upstream side to the most downstream side. The guide roller 31 moves from the most upstream side to the most downstream side along the second path 92 (see FIG. 6). The guide roller 31 moves to the most downstream side along the second path 92 in a state where the film 24 is wound. The upper surface of the guide roller 31 moves on the upstream side of the base 2 and in the vicinity of the lower surface. The film 24 extends downward from a position covering the upstream side of the base 2 and the article 3, contacts the upstream end of the base 2, and bends downstream along the lower surface of the base 2. The film 24 is pressed against the lower surface of the base 2 by the guide roller 31 in the process in which the guide roller 31 moves to the most downstream side. As a result, the film 24 is bonded to the upstream side and the lower surface of the base 2. The article 3 is fixed to the pedestal 2 by the film 24. The film 24 is in close contact with the article 3 and the user cannot directly touch the article 3 from the outside. The article 3 is protected by the film 24. Packaging of the base 2 and the article 3 with the film 24 is completed.

  As described above, in the packaging device 1, when the pedestal 2 on which the article 3 is placed moves from the upstream side in the transport direction to the downstream side, the pedestal 2 receives a force in the direction opposite to the transport direction from the film 24. On the other hand, the transport roller 41 rotates with the tooth portion 413 pierced into the base 2 and transports the base 2. The urging roller 42 urges the base 2 toward the conveying roller 41. For this reason, the conveyance roller 41 appropriately conveys the base 2 without idling. Therefore, the packaging device 1 can stably convey the base 2 on which the article 3 is placed. The packaging device 1 can perform a stable packaging operation. Moreover, the conveyance roller 41 is comprised from the spur roller 410, and it can convey the base 2 by rotating in the state which the tooth | gear part 413 of the spur roller 410 stabbed into the base 2. FIG. Further, the urging roller 42 includes a rubber roller 420 that rotates while urging the pedestal 2, and can stably convey the pedestal 2.

  The present invention can add various changes to the above-described embodiment. Hereinafter, the first modification and the second modification will be described. First, the first modification will be described.

  A first modification will be described with reference to FIG. The difference from the above-described embodiment is that the urging roller 43 includes a pressing spring 4245 on the roller support portion 424. The configuration other than the pressing spring 4245 is the same as the conveying roller 41 and the urging roller 42 shown in FIG.

  The push spring 4245 pushes the rubber roller 420 downward by an elastic force. As a result, the rubber roller 420 biases the base 2. By adjusting the pressing spring 4245, the force with which the rubber roller 420 urges the base 2 can be adjusted. For example, it is possible to prevent the pedestal 2 from being damaged by appropriately biasing the pedestal 2 by adjusting the push spring 4245 according to the hardness of the pedestal 2.

  A second modification will be described with reference to FIG. The difference from the above embodiment is that the urging roller 44 includes a spur roller 440. The spur roller 440 includes a shaft 441, a disc portion 442, and a tooth portion 443. The spur roller 440 has the same configuration as the spur roller 410, the shaft 414, the disk portion 415, and the tooth portion 413 of the transport roller 41.

  The spur roller 440 biases the base 2 downward. The spur roller 440 pierces the upper surface of the base 2. When the pedestal 2 moves due to the rotation of the transport roller 41, the tooth portion 443 of the spur roller 440 follows the rotation of the pedestal 2. Since the two spur rollers 440 and the spur roller 410 rotate on the upper surface and the lower surface of the pedestal 2, the packaging device 1 can convey the pedestal 2 more stably.

  In the above embodiment, the film 24 corresponds to the “package” of the present invention. The transport roller 41 corresponds to the “transport means” of the present invention. The urging roller 42 corresponds to the “urging unit” of the present invention. The tooth portion 413 corresponds to the “first protrusion” of the present invention.

  In addition, as the base 2 shown in the above embodiment, a cardboard board or a plastic board may be used.

  Further, the tooth portion 413 provided on the outer periphery of the disc portion 415 of the spur roller 410 may be stabbed into the base 2. The tooth portion 413 only needs to have at least one tooth with a sharp tip protruding radially outward from the disc portion 415.

  The urging roller 42 urges the pedestal 2 downward while rotating following the conveyance of the pedestal 2, but does not need to rotate following the conveyance of the pedestal 2. For example, the base 2 may be biased by an elastic body such as a spring.

  Moreover, the base 2 should just be provided with the plate-shaped part which mounts the articles | goods 3, and each corner part may be formed in the planar substantially rectangular tray shape curved in circular arc shape.

DESCRIPTION OF SYMBOLS 1 Packaging apparatus 2 Base 3 Goods 24 Film 41 Conveying roller 42 Energizing roller 100 Conveying surface 410 Spur roller 412 Disc part 413 Tooth part 420 Rubber roller 440 Spur roller 442 Disc part 443 Tooth part

Claims (5)

In a packaging device that conveys a pedestal having a plate-like portion on which an article can be placed and wraps the article and the pedestal with a film-like package,
A conveying means for conveying the pedestal disposed on one side of the orthogonal direction orthogonal to the conveying surface with respect to the conveying surface, which is a surface through which the pedestal passes, comprising a disk-shaped first disk portion, And one or more first protrusions protruding outward from the peripheral wall of the first disk part and having a sharp tip, and the first disk part in a state where the first protrusion is pierced into the pedestal Conveying means for conveying the pedestal by rotating,
A packaging apparatus, comprising: an urging unit that is arranged on the other side in the orthogonal direction with respect to the conveyance surface and is opposed to the conveyance unit, and that urges the pedestal on the one side.   The packaging apparatus according to claim 1, wherein the conveying unit is configured by a spur roller, and the first protrusion is a tooth portion provided on the spur roller.   The packaging apparatus according to claim 1, wherein the urging unit is configured by a rubber roller that rotates while urging the pedestal.   The packaging device according to claim 3, wherein the biasing means includes a spring that biases the rubber roller on the one side.   The biasing means includes at least one disc-shaped second disc portion, and one or more second projecting portions protruding outward from the peripheral wall of the second disc portion and having a sharp tip. The packaging device according to claim 1 or 2, wherein the second disk portion rotates in a state in which a protruding portion is pierced into the pedestal.

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