JP6277976B2 - Packaging equipment - Google Patents

Description

  The present invention relates to a packaging device that covers at least a part of an article with a film.

  There has been proposed a packaging apparatus that covers and wraps a part of an article with a film while the article is placed on a plate-like pedestal. For example, in the packaging apparatus described in Patent Document 1, a film is disposed at a position where the pedestal intersects a conveyance surface through which the pedestal passes during conveyance. The pedestal and the article are conveyed toward the film from the upstream side. The film is pulled downstream by contacting the pedestal and the downstream side of the article. Next, a guide roller that guides the film guides the film upstream of the pedestal and the article. Next, the base and the article are conveyed toward the upstream side. The film is pulled upstream in contact with the pedestal and the upstream side of the article. The film is pressed against the pedestal and the article with a strength corresponding to the tension when pulled. Next, the stopper comes close to the guide roller, and the film is sandwiched between the stopper and the guide roller. The film is held by a stopper and a guide roller. Next, the part which covers a base and articles | goods among films is cut | disconnected from a film roll by a cutting part. The end of the cut film is sandwiched between the heater and the pedestal. The heater is heated to weld the end of the film to the pedestal. By the above, an article is packaged with a film.

JP 2014-97835 A

  In the packaging apparatus described above, the film is held by the stopper and the guide roller between the time when the film is separated and the time when the separated film is welded to the pedestal, and acts on the portion of the film that covers the pedestal and the article. There is a problem that the tension to be reduced.

  The objective of this invention is providing the packaging apparatus which suppresses that the tension | tensile_strength of a film falls before welding the edge part of a film to a base.

The packaging apparatus according to the present invention is a packaging apparatus that wraps a pedestal and an article placed on the pedestal with a film, a conveyance mechanism that conveys the pedestal on which the article is placed, and the conveyance The pedestal conveyed by a mechanism is movable along a movement path extending in a vertical direction with respect to a conveyance path through which the pedestal passes, and extends in a width direction intersecting both the conveyance direction of the pedestal and the vertical direction. A guide roller, a mounting portion provided on the upper side with respect to the transport path, and capable of mounting a film roll on which the film is wound, and a lower position below the transport path among the moving paths A restraining member that is movable to a separation position that is separated from the guide roller that has moved to a position close to the guide roller that has moved to the lower position, and After moving from the upper position above the transport path to the lower position, the film is wound on the film roll, thereby applying tension to the film, and tension applied to the film by the applying means. And holding means for moving the suppression member from the separation position to the proximity position and sandwiching the film between the guide roller and the suppression member moved to the lower position, and the holding means And a cutting means for cutting a part on the film roll side with respect to a part of the film that contacts the guide roller after sandwiching the film between the guide roller and the suppressing member, Of the guide roller and the restraining member, the restraining member is moved to the close position with respect to the guide roller moved to the lower position. Among the one side member that is the other side and the other side member that is the other, the one side member is provided with a convex portion that extends toward the other side member, and the suppression member is in the proximity of the other side member A concave portion that is fitted to the convex portion while being moved to a position is provided, and the convex portion includes a plurality of extended convex portions that extend along the width direction and are arranged at intervals in the width direction. Are arranged at intervals in a direction perpendicular to the width direction and along the surface of the one side member, and adjacent to the direction perpendicular to the width direction and along the surface of the one side member. A plurality of first projecting protrusions that are a plurality of projecting protrusions included in the first group of projecting parts, with respect to the first group of projecting parts and the second group of projecting parts that are the two teamed projecting parts, and the first A plurality of second extending protrusions, which are a plurality of extending protrusions included in the two sets of protrusions, are orthogonal to the width direction and It is characterized by being alternately formed in a direction along the surface of the one side member .

  Said packaging apparatus suppresses that the film of the state to which tension | tensile_strength was provided moves to one side by making a suppression member adjoin to a guide roller, and pinching a film between a suppression member and a guide roller. Here, a convex part is provided in one member among a guidance roller and a control member, and a concave part fitted to the convex part is provided in the other member. Therefore, the packaging device can effectively suppress a decrease in the tension of the film even after the film is cut.

In addition , in the state where the suppressing member has moved to the proximity position, the end portions in the width direction of the plurality of extending protrusions strongly contact the film. Since a plurality of end portions are formed, the film becomes more difficult to move. In addition, since the first extending protrusions and the second extending protrusions are alternately formed, the film is particularly difficult to move in a direction orthogonal to the width direction. Therefore, the packaging device can effectively suppress the movement of the film in the direction orthogonal to the width direction.

  In the present invention, with respect to each of the end portions in the width direction of each of the plurality of first extending protrusions, at a position orthogonal to the width direction and adjacent to the direction along the surface of the one side member, A part of each of the plurality of second extending protrusions may be arranged. In this case, at least a part of the width direction overlaps between the plurality of first extending protrusions and the plurality of second extending protrusions that are orthogonal to the width direction and are adjacent in the direction along the surface of the one side member. . In this case, the film is more difficult to move in the direction orthogonal to the width direction. Therefore, the packaging device can further effectively suppress the movement of the film in the direction orthogonal to the width direction.

  In the present invention, the length in the width direction of each of the plurality of extending protrusions may be equal to or longer than the length in the width direction of the interval between the plurality of extending protrusions. In this case, the area of the part which contacts a film among extended protrusions can be enlarged relatively. Therefore, the packaging device can more effectively suppress the movement of the film.

  In the present invention, the extending direction of the convex portion and the concave portion in a state of being fitted to each other is perpendicular to the width direction and on the surface of the one side member with respect to the moving direction of the suppressing member. The direction in which the concave portion extends is inclined to one side of the direction along the direction perpendicular to the width direction with respect to the movement direction of the restraining member, and one side or the other side in the direction along the surface of the other side member It may be inclined to. In this case, the concave portion and the convex portion are easily caught on the film when the film moves in a direction orthogonal to the width direction. Therefore, the packaging device can more effectively suppress the movement of the film.

  In the present invention, the width of the convex portion may become smaller toward the tip. In this case, the tip of the convex portion can be bitten into the film. Therefore, the packaging device can reliably regulate the movement of the film.

  In the present invention, in the state before tension is applied to the film by the applying means, the guide center that is the center position in the vertical direction of the guide roller moved to the lower position is the position of the suppression member. After the tension is applied to the film by the applying means, the guide center of the guide roller is positioned at a first position that is lower than the center position in the vertical direction. You may arrange | position in the 2nd position which is an upper position. Depending on the tension applied to the film, a force in the upward direction may act on the guide roller. On the other hand, the guide center of the guide roller is disposed below the suppressing member in a state before tension is applied to the film. For this reason, even when a force in the upward direction acts on the guide roller in response to the tension acting on the film and the guide roller moves upward, the guide roller and the restraining member continue to sandwich the film. Can do. Therefore, the packaging device can effectively suppress the movement of the film even after tension is applied to the film.

  In this invention, you may provide the supporting member which has the one side supporting member which supports the said guide roller from the one side of the said width direction, and the other side supporting member which supports from the other side. In this case, the packaging device can suppress the support member from coming into contact with the film when the guide roller guides the film.

It is a perspective view of packaging device 1 (state where case 800 was equipped). It is a perspective view of packaging device 1 (state which removed case 800). 3 is a perspective view of a transport mechanism 50. FIG. 4 is a perspective view of the vicinity of the upper ends of side plate members 111 and 112. FIG. It is a perspective view of the film roll 22 periphery. 4 is a perspective view of a guide mechanism 39. FIG. 4 is a perspective view of a guide mechanism 39. FIG. 4 is a right side view of the guide mechanism 39. FIG. 3 is a perspective view of a guide roller 30. FIG. 4 is a right side view of the guide roller 30. FIG. 5 is a plan view of the guide mechanism 39. FIG. It is a right view of the state in which the guide mechanism 39 is disposed at the top. It is a right view in the state where guidance mechanism 39 is arranged at the lowest position. 4 is a perspective view of a pedestal guide roller 71, a holding roller 72, and a heating mechanism 86. FIG. 4 is a perspective view of a heating mechanism 86 and a rotation suppression mechanism 80. FIG. 7 is a perspective view of a stopper 81. FIG. 7 is a right side view of a stopper 81. FIG. It is the front view which looked at the stopper 81 from the upstream. 4 is a perspective view of an induction mechanism 39, a heating mechanism 86, and a rotation suppression mechanism 80. FIG. 4 is a right side view of the induction mechanism 39, the heating mechanism 86, and the rotation suppression mechanism 80. FIG. It is the right view which expanded the guide roller 30 and the stopper 81. FIG. It is a front view of guide members 14 and 15. It is a perspective view of the guide members 14 and 15. FIG. 2 is a block diagram showing an electrical configuration of the packaging device 1. FIG. It is a flowchart of a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a figure which shows the packaging process by a packaging process. It is a right view of the stopper 81 in a modification.

  Embodiments of the present invention will be described below with reference to the drawings. The packaging device 1 wraps the article 3 by covering the article 3 placed on the base 2 such as a mount with a film 24 and fixing the article 3 to the base 2. Hereinafter, packaging the article 3 in this manner is referred to as “packing the base 2 and the article 3”. The packaging device 1 conveys the pedestal 2 on which the article 3 is placed from the lower right side of FIG. 1 toward the upper left side, and wraps the pedestal 2 and the article 3. The upper side, the lower side, the left diagonal lower side, and the right diagonal upper 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 lower right side and the diagonally upper left side in FIG. 1 are referred to as an upstream side and a downstream side in the transport direction, respectively.

<Case 800>
As shown in FIG. 1, the packaging device 1 includes a housing 800. The shape of the housing 800 is a substantially rectangular parallelepiped whose longitudinal direction is the vertical direction. The housing 800 includes an upper housing 801 and a lower housing 803. The upper housing 801 includes two standing portions 802A and a erection portion 802B. The two standing portions 802A extend upward from both left and right end portions of the lower housing 803, respectively. The erection part 802B is erected between the upper ends of the two erection parts 802A. A display unit 207 capable of displaying various types of information is provided on the right standing unit 802A.

  The two standing portions 802A cover side plate members 111 and 112 (see FIG. 2) described later from the right side and the left side, respectively. The erection part 802B covers a film roll 22 (see FIG. 2) described later from above. A portion surrounded by the lower housing 803, the two standing portions 802A, and the erection portion 802B forms an internal space of the housing 800. The internal space of the housing 800 communicates with the outside of the housing 800 through openings 805 formed on the upstream side and the downstream side of the housing 800. The shape of the lower housing 803 is a substantially rectangular parallelepiped with the left-right direction as the longitudinal direction. An operation unit 206 for the user to instruct the packaging apparatus 1 to start or stop the packaging operation is provided in the lower casing 803.

<Receivers 12, 13>
The cradle 12 extends in the horizontal direction from the upper end of the upstream side surface of the lower housing 803 toward the upstream side. The cradle 13 extends in the horizontal direction from the upper end of the downstream side surface of the lower housing 803 toward the downstream side. The shapes of the cradles 12 and 13 are box-like shapes that are substantially rectangular in plan view with the conveying direction as the longitudinal direction. The cradle 12 receives the pedestal 2 conveyed toward the opening 805 on the upper surface. The cradle 13 receives the pedestal 2 and the article 3 whose packaging has been completed on the upper surface. The leg portions 121 and 131 support the cradle 12 and 13 from below.

  The upper surface of the cradle 12 is referred to as “receiving surface 12A”, and the upper surface of the cradle 13 is referred to as “receiving surface 13A”. The receiving surfaces 12A and 13A are horizontal and form substantially the same plane. Therefore, the receiving surfaces 12A and 13A are flat surfaces that can smoothly convey the base 2. A portion on which the pedestal 2 is transported on the receiving surfaces 12A and 13A is referred to as a “transport path 103” (see FIGS. 12, 13 and the like).

  As shown in FIG. 2, the packaging device 1 includes a bottom 10 and side plate members 111 and 112. The shape of the bottom 10 is a rectangular shape in plan view. The side plate member 111 extends in the upward vertical direction from the right end portion of the bottom portion 10. The side plate member 112 extends in the upward vertical direction from the left end portion of the bottom portion 10. Each shape of the side plate members 111 and 112 is a substantially rectangular plate shape whose longitudinal direction is the vertical direction. The inner surfaces of the side plate members 111 and 112 face each other. The cradle 12 is supported by end portions on the upstream side of the side plate members 111 and 112. The cradle 13 is supported by the downstream ends of the side plate members 111 and 112.

<Transport mechanism 50>
As shown in FIG. 3, endless belts 511 and 512 are provided at the right end and the left end of the cradles 12 and 13, respectively. Each of the belts 511 and 512 has teeth on the inner surface. The belt 511 is bridged between a pair of pulleys 52A and 52B. The pulley 52 </ b> A is rotatably provided on the upstream side of the right side surface of the cradle 12. The pulley 52 </ b> B is rotatably provided on the downstream side of the right side surface of the cradle 13. The pulleys 52A and 52B are in contact with the inside of the belt 511, and support the belt 511 in a rotatable manner. The belt 512 is stretched over a pair of pulleys 53A and 53B. The pulley 53 </ b> A is rotatably provided on the upstream side of the left side surface of the cradle 12. The pulley 53B is rotatably provided on the downstream side of the left side surface of the cradle 13. The pulleys 53A and 53B are in contact with the inside of the belt 512 and support the belt 512 rotatably.

  Portions of the outer surfaces of the belts 511 and 512 facing upward are exposed to the receiving surfaces 12A and 13A and extend in the transport direction. A conveying unit 60 is provided on each outer surface of the belts 511 and 512. The conveyance unit 60 includes a right conveyance unit 61 provided on the belt 511 and a left conveyance unit 62 provided on the belt 512. The right transport unit 61 protrudes in the vertical direction and the outward direction with respect to the outer surface of the belt 511. The left conveyance unit 62 protrudes in the vertical direction and the outward direction with respect to the outer surface of the belt 512. In the transport unit 60, the right transport unit 61 and the left transport unit 62 face each other in the left-right direction.

  The right transport unit 61 includes a first transport unit 61A and a second transport unit 61B. The first transport unit 61A and the second transport unit 61B are separated in the transport direction. In the first conveyance unit 61A, a portion of the upstream side surface that is close to the belt 511 is recessed downstream. The left transport unit 62 includes a first transport unit 62A and a second transport unit 62B. The first transport unit 62A and the second transport unit 62B are separated in the transport direction. In the first conveyance unit 62A, a portion of the upstream side surface close to the belt 512 is recessed downstream. The first transport units 61A and 62A hold a pedestal 2 described later from above. The second transport units 61B and 62B push the pedestal 2 upstream or downstream.

  The motor 222 (see FIG. 24) rotates the pulleys 52B and 53B. When the motor 222 rotates the pulleys 52B and 53B in the counterclockwise direction when viewed from the right side, the belts 511 and 512 rotate in the counterclockwise direction. Accordingly, the transport unit 60 transports the base 2 from the upstream side to the downstream side, as will be described later. On the other hand, when the motor 222 rotates the pulleys 52B and 53B in the clockwise direction as viewed from the right side, the belts 511 and 512 rotate in the clockwise direction. Accordingly, the transport unit 60 transports the base 2 from the downstream side to the upstream side, as will be described later. Hereinafter, the rotation direction of the motor 222 and the belts 511 and 512 when the pedestal 2 is conveyed from the upstream side to the downstream side is referred to as “forward direction”, and the rotation direction opposite to the forward direction is referred to as “reverse direction”. The belts 511 and 512, the conveyance unit 60, and the motor 222 are collectively referred to as “conveyance mechanism 50”.

  In addition, the description of the rotation direction (clockwise or counterclockwise) in the following shall show the direction when the packaging apparatus 1 is seen from the right side, unless there is particular limitation.

<Mounting members 141 and 142>
As shown in FIG. 4, a mounting member 141 is provided on the left side surface of the upper end portion of the side plate member 111, and a mounting member 142 is provided on the right side surface of the upper end portion of the side plate member 112. The shapes of the mounting members 141 and 142 are bilaterally symmetric. The mounting member 141 includes a plate-shaped member 141 </ b> A that is separated to the left with respect to the side plate member 111. A concave portion 141D that is recessed downward is provided at the upper end of the plate-shaped member 141A. The mounting member 142 includes a plate-like portion 142 </ b> A that is separated from the side plate member 112 on the right side. A concave portion 142D that is recessed downward is provided at the upper end of the plate-like portion 142A. A construction plate 117 </ b> A is constructed between the side plate members 111 and 112. The shape of the erection plate 117A is a plate shape. The erection plate 117A extends horizontally. The construction plate 117 </ b> A is connected to the side plate member 111 below the mounting member 141, and is connected to the side plate member 112 below the mounting member 142. A film roll 22 (see FIG. 5 and the like) described later is detachably mounted on the upper side of the construction plate 117A.

  The erection plate 117B is provided upstream of the upstream end of the erection plate 117A. The erection plate 117 </ b> B is erected between the side plate members 111 and 112. The construction plate 117C extends upward from the downstream end of the construction plate 117A. The film 24 fed out from the film roll 22 mounted on the mounting members 141 and 142 passes through the gap between the upstream end of the mounting plate 117A and the mounting plate 117B, and the inside of the casing 800 (see FIG. 1). It is discharged down to the space. The pedestal 2 on which the article 3 is placed is packaged by the film 24 when the interior space of the housing 800 is conveyed from the upstream side toward the downstream side.

  FIG. 5 shows the film roll 22 mounted on the mounting members 141 and 142. A connection gear 651 is disposed on the downstream side of the recess 141D. Connection gear 651 includes a plurality of gears that mesh with each other. A plate-like member 16 </ b> A is provided on the right side of the connection gear 651. The connection gear 651 is rotatably supported between the plate-like members 141A and 16A.

  A connection gear 652 is disposed below the connection gear 651. Connection gear 652 includes a plurality of gears that mesh with each other. A plate-like member 16B is provided on the right side of the connection gear 652. The connection gear 652 is rotatably supported by the plate-like member 141A. A plunger (not shown) of a solenoid 16C (see FIG. 24) is connected to the plate member 16B. The connection gear 652 can be moved between a winding position and a feeding position by a solenoid 16C.

  A first pulley (not shown) is provided on the upstream side of the connecting gear 652, and a second pulley (not shown) is provided on the further upstream side of the first pulley. A transmission belt 653 is bridged between the first pulley and the second pulley. The first and second pulleys and the transmission belt 653 rotate in conjunction with each other. Rollers 654A and 654B (see FIG. 4) are provided on the upstream side of the film roll 22 mounted on the mounting members 141 and 142. The lengths of the rollers 654A and 654B in the left-right direction are substantially the same as the width of the film 24. Roller 654B connects to the second pulley. The roller 654A is provided on the upstream side of the roller 654B, and contacts the roller 654B from the upstream side.

  As shown in FIG. 4, the motor 227 is provided on the left side of the plate-like member 141A of the mounting member 141 and on the upstream side of the installation plate 117C. The rotation shaft of the motor 227 extends horizontally to the right and is inserted into a hole provided in the plate-shaped member 141A. As shown in FIG. 5, a motor gear 670 is fixed to the right end of the rotating shaft. Motor gear 670 meshes with connection gear 652.

  When the connection gear 652 is moved to the winding position by the solenoid 16C, the connection gear 652 is connected to the connection gear 651. In this case, the rotational driving force of the motor 227 is transmitted to the connection gear 651 via the motor gear 670 and the connection gear 652. On the other hand, when the connection gear 652 is moved to the extended position by the solenoid 16C, the connection gear 652 is connected to the first pulley. In this case, the rotational driving force of the motor 227 is transmitted to the roller 654B via the motor gear 670, the connection gear 652, the first pulley, the transmission belt 653, and the second pulley.

<Film roll 22>
The film roll 22 has a film 24 and a winding shaft 23. The film 24 is wound around the winding shaft 23. The winding shaft 23 is a substantially cylindrical body and extends in the left-right direction. The length of the winding shaft 23 in the left-right direction is substantially equal to the length of the film 24 in the left-right direction. The winding shaft 23 includes a right convex portion 23A that protrudes rightward from the right side surface. In a state in which the film roll 22 is mounted on the mounting members 141 and 142, the right convex portion 23A contacts the concave portion 141D of the mounting member 141. Although not illustrated, the winding shaft 23 includes a left convex portion having the same shape as the right convex portion 23A on the left side surface. The left convex portion is in contact with the concave portion 142D (see FIG. 4) of the mounting member 142 in a state where the film roll 22 is mounted on the mounting members 141 and 142. The winding shaft 23 is rotatably supported by the mounting members 141 and 142. A film gear 23B is provided on the right side surface of the right convex portion 23A. The film 24 fed out from the film roll 22 is sandwiched from both sides in the transport direction by the rollers 654A and 654B.

  The film gear 23B meshes with the connecting gear 651 from the upstream side in a state where the film roll 22 is mounted on the mounting members 141 and 142. With the connecting gear 652 moved to the winding position, the rotational driving force of the motor 227 (see FIG. 4) is transmitted to the film gear 23B via the motor gear 670 and the connecting gears 651 and 652. In response to the rotation of the motor 227, the film gear 23B rotates counterclockwise. When the film gear 23 </ b> B rotates counterclockwise, the film 24 is wound around the film roll 22.

  On the other hand, the rotational driving force of the motor 227 is transmitted to the roller 654B in a state where the connecting gear 652 is moved to the extended position. In accordance with the rotation of the motor 227, the roller 654B rotates clockwise. When the roller 654B rotates clockwise, the roller 654B unwinds the film 24 sandwiched between the roller 654A from the film roll 22.

<Guiding mechanism 39>
As shown in FIG. 2, a carriage 349 that is driven by the rotation of the motor 221 is provided on the right side surface of the side plate member 111. The carriage 349 is connected to a support member 341 (see FIG. 6). A carriage 350 is provided on the left side surface of the side plate member 112. The carriage 350 is connected to the support member 342.

  As shown in FIGS. 6 to 8, the shapes of the support members 341 and 342 are symmetrical. Support members 341 and 342 are spaced apart in the left-right direction. The length in the left-right direction of the support members 341, 342 is slightly shorter than the length in the left-right direction of the cradle 12, 13 (see FIG. 2). Hereinafter, the support member 341 will be described, and the description of the support member 342 will be omitted. The support member 341 includes a base portion 341A, a first extension portion 341B, a second extension portion 341C, and a third extension portion 341D. The base portion 341A, the first extending portion 341B, the second extending portion 341C, and the third extending portion 341D are plate-shaped. The respective planes of the base portion 341A, the first extending portion 341B, the second extending portion 341C, and the third extending portion 341D face the left-right direction.

  The shape of the base portion 341A is substantially rectangular in a side view. The lower end of the base portion 341A is slightly inclined downward from the upstream side to the downstream side. Two holes are formed in the base portion 341A so as to be aligned in the vertical direction in the upstream portion.

  The first extending portion 341B extends horizontally from the lower portion of the downstream end of the base portion 341A toward the downstream side. The shape of the first extending portion 341B is substantially rectangular in a side view. The upper end and the lower end of the first extending portion 341B extend horizontally toward the downstream side. An inclined portion 3411 that is slightly inclined downward is formed in the downstream portion of the upper end of the first extending portion 341B. A recessed portion 3412 that is recessed upward is provided in the downstream portion of the lower end of the first extending portion 341B.

  The second extending portion 341C extends horizontally from the upper portion of the downstream end of the base portion 341A toward the downstream side. The shape of the second extending portion 341C is substantially rectangular in a side view. The downstream end of the second extending portion 341C is disposed on the downstream side of the downstream end of the first extending portion 341B. The upper end and the lower end of the second extending portion 341C extend horizontally toward the downstream side. An inclined portion 3413 that is slightly inclined upward is provided on the downstream side of the lower end of the second extending portion 341C.

  The upper end of the first extending portion 341B and the lower end of the second extending portion 341C are spaced apart in the vertical direction to form a gap 3414 extending in the transport direction. The gap 3414 extends from the base portion 341A toward the downstream side with the same width, and spreads on both the upper and lower sides by the inclined portions 3411 and 3413 in the downstream portion.

  The third extending portion 341D extends vertically upward from a portion on the upstream side of the upper end of the base portion 341A. The shape of the third extending portion 341D is substantially rectangular in a side view. The third extending portion 341D has three holes arranged in the vertical direction. Note that screws for connecting the support member 341 to the carriage 349 (see FIG. 2) are inserted through the plurality of holes of the base portion 341A and the third extending portion 341D.

  As shown in FIGS. 6 and 7, the base portion 342A, the first extension portion 342B, the second extension portion 342C, and the third extension portion 342D of the support member 342 are respectively the base portion 341A of the support member 341, This corresponds to the first extending portion 341B, the second extending portion 341C, and the third extending portion 341D. The inclined portion 3421 and the recessed portion 3422 (see FIG. 7) of the first extending portion 342B correspond to the inclined portion 3411 and the recessed portion 3412 of the first extending portion 341B, respectively. The inclined portion 3423 (see FIG. 6) of the second extending portion 342C corresponds to the inclined portion 3413 of the second extending portion 341C. A gap 3424 between the first extending part 342B and the second extending part 342C corresponds to a gap 3414 between the first extending part 341B and the second extending part 341C. Screws for connecting the support member 342 to the carriage 350 (see FIG. 2) are inserted through the plurality of holes of the base portion 342A and the third extending portion 342D. Hereinafter, the support members 341 and 342 are collectively referred to as “a pair of support members 34”. The bases 341A and 342A are collectively referred to as “a pair of bases 34A”. The first extending portions 341B and 342B are collectively referred to as “a pair of first extending portions 34B”. The second extending portions 341C and 342C are collectively referred to as “a pair of second extending portions 34C”.

  The guide rollers 30, 31, and 32 are disposed between the downstream portions of the pair of first extending portions 34B. The right ends of the guide rollers 30 to 32 are supported by the first extending portion 341B. The left ends of the guide rollers 30 to 32 are supported by the first extending portion 342B. The guide roller 33 is disposed between the pair of base portions 34A. The right end of the guide roller 33 is supported by the base 341A. The left end of the guide roller 33 is supported by the base 342A. The erection member 35 is disposed in the upstream portion of the pair of second extending portions 34C. The left end of the erection member 35 is supported by the second extending portion 341C. The left end of the erection member 35 is supported by the second extending portion 342C.

  As shown in FIG. 9, the guide roller 30 includes divided rollers 301, 302, 303, 304, 305, 306, 307, 308, and a shaft member 30C. Each of the divided rollers 301 to 308 is a gear extending in the left-right direction. Each of the divided rollers 301 to 308 has a cylindrical portion 300 extending in the left-right direction. A plurality of convex portions 30 </ b> A projecting outward are provided on the side surface of the cylindrical portion 300. Each of the plurality of convex portions 30 </ b> A forms a plurality of concave portions 30 </ b> B between each of the plurality of other convex portions 30 </ b> A adjacent in the circumferential direction of the cylindrical portion 300. The plurality of convex portions 30A and the plurality of concave portions 30B extend in the left-right direction.

  A direction P extending radially and in a direction perpendicular to the left-right direction is defined from a center line 301C extending in the left-right direction along the rotation center of the guide roller 30. In this case, the direction in which each of the plurality of convex portions 30A protrudes outward in the direction orthogonal to the left-right direction is inclined in the counterclockwise direction with respect to the direction P in the right side view. For this reason, the direction Q in which the plurality of concave portions 30B formed between the plurality of convex portions 30A extends in the direction orthogonal to the left-right direction and outward is also opposite to the direction P in the right side view. Tilt in the clockwise direction.

  Specifically, it is as follows. For example, as shown in FIG. 10, a recess 301B arranged on the most downstream side among the plurality of recesses 30B is taken as an example. The concave portion 301B is formed by two convex portions 301A and 302A that are adjacent to each other in the circumferential direction of the cylindrical portion 300. Any point in the recess 301B that is closest to the center line 301C is defined as a proximity point R. A direction P1 passing through the proximity point R is defined among the directions P extending from the center line 301C in a radial direction orthogonal to the left-right direction. The direction P1 is assumed to extend in parallel with the direction from the center line 301C toward the downstream side. The extending direction Q1 of the concave portion 301B can be defined as a direction extending from the proximity point R through the center between the opposing surfaces of the convex portions 301A and 302A. The direction Q1 is inclined downward with respect to the direction P1. An acute angle θ1 formed by the direction P1 and the direction Q1 is 20 degrees.

  As shown in FIG. 9, the length in the left-right direction of each of the divided rollers 301 to 308 is substantially the same, and is approximately 1/8 of the length between the pair of first extending portions 34 </ b> B (see FIG. 7). The division rollers 301 to 308 are arranged in the left-right direction. Each of the divided rollers 301 to 308 has a hole that penetrates along the axis. A cylindrical shaft member 30C extending in the left-right direction along the center line 301C extends through the hole in the left-right direction. As shown in FIGS. 6 and 7, the right end of the shaft member 30 </ b> C is fitted into a hole provided in a portion on the downstream side of the concave portion 3412 of the first extending portion 341 </ b> B. Although not shown, the left end of the shaft member 30C is fitted into a hole provided in a downstream portion of the concave portion 3422 of the first extending portion 342B. The split rollers 301 to 308 are connected to each other with play.

  As illustrated in FIG. 6, the guide roller 31 includes divided rollers 311, 312, 313, and 314 and a shaft member (not shown). Each of the divided rollers 311 to 314 is a cylindrical body extending in the left-right direction. The length of each of the divided rollers 311 to 314 in the left-right direction is the same, and is approximately ¼ of the length between the pair of first extending portions 34B. The division rollers 311 to 314 are arranged in the left-right direction. Each of the divided rollers 311 to 314 has a hole that penetrates along the axis. The shaft member penetrates the hole and extends in the left-right direction. The right end of the shaft member is fitted into a hole provided in an upper portion of the recess 3412 of the first extending portion 341B. The left end of the shaft member fits into a hole provided in a portion on the upper side of the concave portion 3422 of the first extending portion 342B. Each of the divided rollers 311 to 314 can rotate independently with respect to the shaft member.

  As shown in FIG. 7, the guide roller 32 includes divided rollers 321, 322, 323, and 324 and a shaft member (not shown). Each of the divided rollers 321 to 324 is a cylindrical body extending in the left-right direction. The length of each of the divided rollers 321 to 324 in the left-right direction is the same, and is approximately ¼ of the length between the pair of first extending portions 34B. The division rollers 321 to 324 are arranged in the left-right direction. Each of the divided rollers 321 to 324 has a hole that penetrates along the axis. The shaft member penetrates the hole and extends in the left-right direction. The right end of the shaft member is fitted into a hole provided in a portion on the upstream side of the concave portion 3412 of the first extending portion 341B. The left end of the shaft member is fitted into a hole provided in a portion on the upstream side of the concave portion 3422 of the first extending portion 342B. Each of the divided rollers 321 to 324 can rotate independently with respect to the shaft member.

  As shown in FIGS. 6 and 7, the guide roller 33 includes divided rollers 331, 332, 333, and 334, and a shaft member (not shown). Each of the dividing rollers 331 to 334 is a cylindrical body extending in the left-right direction. The length of each of the split rollers 331 to 334 in the left-right direction is the same, and is approximately ¼ of the length between the pair of first extending portions 34B. The division rollers 331 to 334 are arranged in the left-right direction. Each of the dividing rollers 331 to 334 has a hole that penetrates along the axis. The shaft member penetrates the hole and extends in the left-right direction. The right end of the shaft member is fitted into a hole provided in the base portion 341A. The left end of the shaft member is fitted into a hole provided in the base portion 342A. Each of the split rollers 331 to 334 can rotate independently with respect to the shaft member.

  In addition, the number of the division | segmentation rollers 301-308 of the guide roller 30 is not limited to eight, 1-7, 9 or more may be sufficient. The number of divided rollers 311 to 314 of the guide roller 31, divided rollers 321 to 324 of the guide roller 32, and divided rollers 331 to 334 of the guide roller 33 is not limited to four, and is 2, 3, 5 or more. Also good. The left and right lengths of the divided rollers 301 to 308 of the guide roller 30 may be different. The lengths of the divided rollers 311 to 314 of the guide roller 31, the divided rollers 321 to 324 of the guide roller 32, and the divided rollers 331 to 334 of the guide roller 33 may be different. At least one of the guide rollers 30 to 33 may have a single roller without the division roller.

  As shown in FIG. 6, the erection member 35 extends between the upstream end portion of the second extending portion 341C and the upstream end portion of the second extending portion 342C. The erection member 35 includes plate-like members 35A and 35B and a bending member 35C. The plate-like members 35A and 35B are spaced apart from each other in the vertical direction. The curved member 35C is provided between the downstream ends of the two plate-like members. The bending member 35C is curved in a convex shape on the downstream side. The plate-like member 35A extends inward from the upper ends of the pair of second extending portions 34C. The plate-like member 35B extends inward from the upper side than the lower ends of the pair of second extending portions 34C. The interval between the plate-like members 35A and 35B is approximately ½ of the length in the vertical direction of the pair of second extending portions 34C.

  As shown in FIG. 11, the erection member 35 has a transmission part 35D on the left side of the center in the left-right direction. The transmission part 35D is a hole that penetrates each of the plate-like members 35A and 35B in the vertical direction.

  As illustrated in FIG. 8, the guide roller 30 is disposed upstream of the downstream end of the second extending portion 341C. The guide rollers 30 and 32 are arranged horizontally. The lower ends of the guide rollers 30 and 32 slightly protrude below the lower end of the first extending portion 341B. The guide roller 31 is disposed above the guide rollers 30 and 32. The upper end of the guide roller 31 slightly protrudes above the upper end of the first extending portion 341B. The guide roller 33 is disposed above the guide roller 31. The installation member 35 is disposed above the guide roller 33. The plate-like member 35B of the erection member 35 is disposed above the lower end of the second extending portion 341C. Hereinafter, the pair of support members 34, the guide rollers 30 to 33, and the installation member 35 are referred to as a “guide mechanism 39”.

  As shown in FIG. 2, the motor 221 can move the guide mechanism 39 in the vertical direction via carriages 349 and 350. FIG. 12 shows a state in which the guide mechanism 39 is disposed at the uppermost position. In this state, of the support members 342 of the pair of support members 34, the third extending portion 342 </ b> D is disposed in the vicinity of the upstream side and the lower side of the film roll 22. The first extending portion 342 </ b> B and the second extending portion 342 </ b> C are disposed below the film roll 22. The guide rollers 30 to 33 and the erection member 35 are disposed below the film roll 22.

  FIG. 13 shows a state where the guide mechanism 39 is arranged at the lowest position. In this state, the first extending portion 342 </ b> B of the support members 342 of the pair of support members 34 is disposed below the conveyance path 103. The guide rollers 30 to 32 supported by the pair of first extending portions 34 </ b> B are disposed below the conveyance path 103. The second extending portion 342C is disposed on the upper side of the first extending portion 342B with the conveyance path 103 interposed therebetween. The guide roller 33 and the erection member 35 are disposed on the upper side of the conveyance path 103. The gap 3424 (see FIGS. 6 and 7) is arranged along the transport path 103. Hereinafter, the movement path of the guide roller 30 accompanying the movement of the pair of support members 34 is referred to as “movement path 104”. A position where the conveyance path 103 and the movement path 104 intersect is referred to as an “intersection position 105”.

<Pedestal guide roller 71, holding roller 72>
As shown in FIGS. 14 and 15, a pedestal extending in the left-right direction on the upstream side of the portion sandwiched between the side plate members 111 and 112 (see FIG. 2) and below the conveyance path 103 (see FIGS. 12 and 13). A guide roller 71 is provided. The pedestal guide roller 71 contacts the conveyance path 103 from below. The pedestal guide roller 71 supports the pedestal 2 conveyed from the upstream side to the downstream side along the conveyance path 103 from below between the cradles 12 and 13, and guides the pedestal 12 from the cradle 12 to the cradle 13. As shown in FIG. 15, the support member 70 is disposed below the pedestal guide roller 71. The support member 70 has a box shape. The support member 70 includes a plate-like member 70A, a pair of plate-like members 70B, and a pair of plate-like members 70C. The plate member 70 </ b> A corresponds to the downstream side of the support member 70. The pair of plate-like members 70 </ b> B correspond to the left and right sides of the support member 70. The right side of the pair of plate members 70C extends upward from the right side of the pair of plate members 70B. The left side of the pair of plate-like members 70C extends upward from the left side of the pair of plate-like members 70B. The left and right sides of the pedestal guide roller 71 are rotatably supported by a pair of plate-like members 70C.

  A pair of holding members 78 are provided on the left and right outer sides of the pair of plate-like members 70B. The pair of holding members 78 can rotate with a projecting portion 70 </ b> D projecting from the pair of plate-like members 70 </ b> B to the left and right outside as a fulcrum. Of the pair of holding members 78, a holding roller 72 is provided on the side opposite to the side supported by the protrusion 70 </ b> D. The holding roller 72 is a cylindrical body extending in the left-right direction. The left and right ends of the holding roller 72 are rotatably supported by a pair of holding members 78. The pair of holding members 78 are rotated by a motor 226 (see FIG. 24). Due to the rotation of the pair of holding members 78, the holding roller 72 is close to the downstream side of the pedestal guide roller 71 (see FIG. 15), and the holding roller 72 is separated downward from the pedestal guide roller 71 (FIG. 28, etc.). To see). As shown in FIG. 12, when the holding roller 72 comes close to the downstream side of the pedestal guide roller 71, the holding roller 72 contacts the conveyance path 103 from below. At this time, the film 24 supplied from the film roll 22 is sandwiched between the holding roller 72 and the pedestal guide roller 71.

<Heating mechanism 86>
As shown in FIG. 15, a heating mechanism 86 is provided on the downstream side of the plate-like member 70 </ b> A of the support member 70. The heating mechanism 86 includes five heating units 861, a holding member 862, and a pedestal member 863.

  Each of the five heating units 861 has a substantially rectangular parallelepiped shape. The heating unit 861 has a heater 861A on the upper surface. The heater 861A is a resistance heating type heater that heats by passing an electric current. The heating unit 861 has two protrusions 861B that protrude from the downstream surface toward the downstream side. Each of the two protrusions 861B is arranged in the left-right direction.

  The holding member 862 is a substantially U-shaped member in a side view. The holding member 862 has a groove extending in the left-right direction. The length in the left-right direction of the holding member 862 is substantially the same as the length in the left-right direction of the cradle 12, 13 (see FIG. 2). The heating unit 861 is disposed inside the groove of the holding member 862. The five heating units 861 are aligned in the left-right direction. A plurality of long hole portions 862 </ b> A are provided in the plate-like member on the downstream side of the holding member 862. The plurality of long hole portions 862A are long holes that are long in the vertical direction. The plurality of long hole portions 862A are arranged in the left-right direction. Each of the two protruding portions 861B of the five heating units 861 enters the plurality of elongated hole portions 862A from the upstream side and protrudes to the downstream side. The five heating units 861 can move in the vertical direction by the length in the vertical direction of the plurality of elongated holes 862A. A plurality of springs (not shown) are connected to the lower side of the groove of the holding member 862 to urge the five heating units 861 upward. The upper surfaces of the five heating units 861 are arranged above the upper ends of the holding members 862.

  The base member 863 supports the holding member 862 from below. The pedestal member 863 has a pair of rack gears 863A at the left and right ends of the downstream side surface. The pair of rack gears 863 </ b> A extend in the vertical direction with their teeth facing downstream. A motor 223 (see FIG. 24) is provided on the downstream side of the base member 863. The pinion gear connected to the rotating shaft of the motor 223 meshes with the right side of the pair of rack gears 863A. As the motor 223 rotates, the base member 863 moves in the vertical direction. As a result, the holding member 862 and the five heating units 861 also move in the vertical direction. As shown in FIG. 15, when the five heating units 861 are arranged at the lowest position, the heaters 861A on the respective upper surfaces are separated downward from the transport path 103 (see FIG. 12). On the other hand, as shown in FIG. 19, when the heating mechanism 86 is disposed at the uppermost position, the heaters 861 </ b> A on the upper surfaces of the five heating units 861 are disposed slightly above the conveyance path 103.

<Cover member 87>
As shown in FIG. 15, the lid member 87 is provided on the downstream side of the support member 70. The lid member 87 is a substantially rectangular plate member. The longitudinal direction of the lid member 87 extends in the left-right direction. The length in the left-right direction of the lid member 87 is substantially the same as the length in the left-right direction of the holding member 862 of the heating mechanism 86. One end side 87 </ b> A in the longitudinal direction of the lid member 87 is rotatably supported by the plate-like member 70 </ b> A of the support member 70. The flat surface of the lid member 87 extends substantially horizontally with the heating mechanism 86 disposed at the lowest position. The lid member 87 covers the upper heater 861A of each of the five heating units 861 from above.

  On the other hand, in the process in which the heating mechanism 86 moves from the lowest position toward the highest position, the five heating units 861 come into contact with the lid member 87 from below. The five heating units 861 push up the other end side 87B of the lid member 87 upward. The lid member 87 rotates with the one end side 87A as a fulcrum. As shown in FIG. 20, the other end side 87 </ b> B of the lid member 87 contacts the upstream side surface of the holding member 862 of the heating mechanism 86 from the upstream side. The flat surface of the lid member 87 extends substantially vertically. As shown in FIG. 19, the lid member 87 does not cover the upper heaters 861 </ b> A of the five heating units 861 from above in a state where the heating mechanism 86 is disposed at the uppermost position. Hereinafter, a state in which the flat surface of the lid member 87 extends in the horizontal direction is referred to as “a state in which the lid member 87 is closed”, and a state in which the flat surface of the lid member 87 extends in a substantially vertical direction is referred to as “the lid member 87 is opened. State.

<Rotation suppression mechanism 80>
As shown in FIG. 15, the rotation suppression mechanism 80 is provided on the downstream side of the heating mechanism 86. The rotation suppression mechanism 80 includes plate-like members 84 and 85. The plate-like member 85 is a plate-like member fixed to the packaging device 1. The plate-like member 85 supports the pair of support rods 85A on both the left and right sides. The plate member 84 is disposed on the upper side of the plate member 85. The plate-like member 84 has holes that penetrate in the transport direction on both the left and right sides. Each of the pair of support rods 85 </ b> A is inserted through holes on the left and right sides of the plate-like member 84. The plate-like member 84 is movable in the transport direction along the pair of support bars 85A.

  The pair of support bars 82 extends horizontally from the plate-like member 84 to the upstream side. The stopper 81 is provided at the upstream end of the pair of support bars 82. As shown in FIG. 16, the stopper 81 has a base portion 25 and a plurality of convex portions 26. The shape of the base portion 25 is a rod shape having a substantially square cross-sectional shape. The base 25 extends in the left-right direction. The length in the left-right direction of the base 25 is substantially the same as the length in the left-right direction of the guide roller 30 (see FIG. 9). The upper surface 25A of the base 25 is inclined downward toward the upstream side. The upstream surface 25B of the base 25 is orthogonal to the transport direction.

  A hole 26A is provided on the right side of the center 25 in the left-right direction. A hole 26B is provided on the left side of the center 25 in the left-right direction. The holes 26A and 26B penetrate the base 25 in the transport direction. The upstream ends of the pair of support rods 82 (see FIG. 15) are connected to the downstream surface of the base portion 25. The base portion 25 is fixed to the pair of support rods 82 by screws (not shown) inserted through the holes 26A and 26B from the upstream side. A plurality of convex portions 26 are provided on the surface 25 </ b> B of the base portion 25.

  The plurality of convex portions 26 will be described in detail. The plurality of convex portions 26 include continuous convex portions 270 and assembled convex portions 271, 272, 273, 274, and 275. The continuous convex portion 270 is provided at the upper end portion of the surface 25B of the base portion 25 and protrudes toward the upstream side. The continuous convex portion 270 extends between the left and right end portions of the base portion 25. The width of the continuous convex portion 270 in the vertical direction becomes smaller toward the upstream end (tip). The continuous convex portion 270 is divided into three by the holes 26A and 26B.

  The assembled convex portion 271 is provided below the continuous convex portion 270 and protrudes toward the upstream side. The assembled convex portion 271 has a plurality of extended convex portions 281. Each of the plurality of extending protrusions 281 has a substantially plate shape extending in the left-right direction. Each of the plurality of extending protrusions 281 has the same shape. The length in the left-right direction of each of the plurality of extending protrusions 281 is defined as “L1”.

  As shown in FIG. 17, the opposing upper surface 281A and lower surface 281B of each of the plurality of extending protrusions 281 face a direction slightly inclined with respect to the vertical direction. A direction S extending in a direction orthogonal to the surface 25B from the surface 25B of the base 25 toward the upstream side is defined. A direction extending from the surface 25B through the center between the surface 281A and the surface 281B of the extended convex portion 281 is defined as a direction T in which the extended convex portion 281 extends. The direction T is inclined downward with respect to the direction S. The acute angle θ2 formed by the direction S and the direction T is 20 degrees.

  As shown in FIG. 16, each of the plurality of extending protrusions 281 is aligned in a straight line with an interval in the left-right direction. The plurality of extended protrusions 281 are disposed between the left and right ends of the surface 25 </ b> B of the base 25. The number of the plurality of extending protrusions 281 is about 20. The left and right of the portions (hereinafter referred to as “horizontal gaps”) between the end portions adjacent to each other in each of the two extended convex portions 281 adjacent in the left-right direction among the plurality of extended convex portions 281. The length of the direction is defined as “L2”. L2 is smaller than L1.

  The assembled convex portions 272 to 275 are provided below the assembled convex portion 271. The assembled convex portions 272 to 275 are arranged in order from the upper side to the lower side along the surface 25 </ b> B of the base portion 25. Each of the assembled convex portions 272 to 275 also has a plurality of extended convex portions 282 to 285 having the same shape as the plurality of extended convex portions 281 of the assembled convex portion 271. Hereinafter, the extended protrusions 281 to 285 are collectively referred to as “a plurality of extended protrusions 28”. The combined convex portions 271 to 275 are collectively referred to as “a plurality of combined convex portions 27”. Each of the plurality of assembled convex portions 27 is arranged at intervals in the vertical direction. An interval in the vertical direction between two paired convex portions 27 adjacent in the vertical direction among the plurality of paired convex portions 27 is defined as “L3”. In this case, L3 is smaller than L2.

  As shown in FIG. 18, each of the plurality of extended convex portions 281 of the set convex portion 271, the plurality of extended convex portions 283 of the set convex portion 273, and the plurality of extended convex portions 285 of the set convex portion 275. The right end position W1 and the left end position W2 coincide. The right end position W3 and the left end position W4 of each of the plurality of extended protrusions 282 of the assembled protrusion 272 and the plurality of extended protrusions 284 of the assembled protrusion 274 coincide.

  The center C1 in the left-right direction of each of the plurality of extending protrusions 281, 283, 285 is disposed at the center of the gap in the left-right direction of each of the plurality of extending protrusions 282, 284. The center position C2 in the left-right direction of each of the plurality of extending protrusions 282, 284 is disposed at the center of the gap in the left-right direction of each of the plurality of extending protrusions 281, 283, 285. Note that the length L1 in the left-right direction of each of the plurality of extending protrusions 28 is larger than the length L2 of the gap in the left-right direction of the plurality of extending protrusions 28. For this reason, a part of each of the plurality of extending protrusions 282 is disposed below the both ends of each of the plurality of extending protrusions 281 in the left-right direction. The plurality of extended protrusions 281 and 282 are alternately arranged in the vertical direction. In addition, the relationship between the plurality of extending projections 282 and 283, the relationship between the plurality of extending projections 283 and 284, and the relationship between the plurality of extending projections 284 and 285 are also described. It is the same as the relationship of 282. For this reason, the plurality of extending protrusions 282 and 283, the plurality of extending protrusions 283 and 284, and the plurality of extending protrusions 284 and 285 are alternately arranged in the vertical direction.

  As shown in FIG. 15, the cam 83 is connected to a rotating shaft that extends upward from the left-right center of the plate-like member 85. A motor 224 (see FIGS. 20 and 24) is provided below the plate-like member 85. The cam 83 rotates according to the rotation of the motor 224. The cam 83 comes into contact with the protruding portion 84A protruding upward from the left and right center of the plate-like member 84 from the upstream side. When the motor 224 rotates the cam 83, the plate member 84 moves in the transport direction. As the plate member 84 moves in the transport direction, the pair of support bars 82 and the stopper 81 also move in the transport direction.

  19 to 21 show a state after the guide mechanism 39 is disposed at the lowest position and the stopper 81 has moved upstream. The stopper 81 is disposed at a position where it can come into contact with the guide roller 30 supported by the pair of first extending portions 34B (341B, 342B) from the downstream side. Hereinafter, the position of the stopper 81 when the stopper 81 can come into contact with the guide roller 30 is referred to as a “proximity position”. As shown in FIG. 21, when the stopper 81 moves to a close position, the concave portion 30 </ b> B disposed on the downstream side among the plurality of concave portions 30 </ b> B of the guide roller 30 and the plurality of convex portions 26 of the stopper 81 are fitted. . The extending direction of the concave portion 30B fitted to the convex portion 26 is inclined downward with respect to the direction toward the downstream side. The extending direction of the convex portion 26 in a state of fitting with the concave portion 30B is inclined downward with respect to the direction toward the upstream side. The rotation of the guide roller 30 is regulated by the stopper 81.

  On the other hand, when the stopper 81 moves to the downstream side, the stopper 81 is separated to the downstream side with respect to the guide roller 30 even when the guide mechanism 39 is disposed at the lowest position. Hereinafter, the position of the stopper 81 when the stopper 81 is separated from the guide roller 30 is referred to as a “separated position”.

<Cutting part 77>
As shown in FIGS. 12 and 13, a guide rail 74 extending in the left-right direction is provided below the intersection position 105. As shown in FIG. 14, the guide rail 74 extends to the right side of the belt 511 and extends to the left side of the belt 512. The cutting part 77 has a hole penetrating in the left-right direction. The cutting part 77 is movable in the left-right direction along the guide rail 74. The cutting portion 77 includes a blade portion 771 that protrudes upward and extends in the left-right direction. The motor 225 (see FIG. 24) moves the cutting portion 77 in the left-right direction along the guide rail 74.

  As shown in FIG. 13, when the guide mechanism 39 is disposed at the lowest position, the guide roller 30 is disposed above the guide rail 74. A blade portion 771 extending upward from the cutting portion 77 is disposed between the guide rollers 30 and 32 and below the guide roller 31. Further, the blade portion 771 is disposed inside the concave portions 3412 and 3422 (see FIGS. 6 and 7) of the pair of first extending portions 34B (see FIGS. 6 and 7) as viewed from the side. . For this reason, when the cutting part 77 moves in the left-right direction, the blade part 771 does not contact the first extending part 342B.

<Sensors 66, 67, 68, 69>
As shown in FIG. 20, the light emitting element 67 </ b> B is provided on the downstream side of the plate-like member 70 </ b> A of the support member 70 and on the upstream side of the heating mechanism 86. The light emitting element 67B is fixed to the upper side of the bottom 10 (see FIG. 2). A light receiving element 67A is provided vertically above the light emitting element 67B and below the installation plate 117A (see FIG. 4). The light emitting element 67B can emit infrared light vertically upward. The light receiving element 67A has a light receiving surface on the lower surface. The light receiving element 67A can receive the infrared light emitted from the light emitting element 67B on the light receiving surface.

  When infrared light is emitted from the light emitting element 67B, the infrared light passes upward through the gap between the upstream side of the heating mechanism 86 and the downstream side of the plate-like member 70A of the support member 70. . As shown in FIG. 15, the lid member 87 is closed with the heating mechanism 86 moved to the lowest position. In this case, the upper side of the light emitting element 67 </ b> B is covered with the lid member 87. For this reason, the infrared light emitted from the light emitting element 67 </ b> B is shielded by the lid member 87. On the other hand, as shown in FIGS. 19 and 20, when the heating mechanism 86 is disposed at the uppermost position, the lid member 87 is opened. In this case, the upper portion of the light emitting element 67B is not covered by the lid member 87. For this reason, the infrared light emitted from the light emitting element 67 </ b> B is not shielded by the lid member 87.

  As shown in FIG. 19, the transmission portion 35D of the erection member 35 of the guide mechanism 39 is disposed at a portion where the imaginary line segment connecting the light receiving element 67A and the light emitting element 67B and the erection member 35 intersect. For this reason, the infrared light radiated | emitted from the light emitting element 67B passes the transmission part 35D toward upper direction from the downward direction. For this reason, the infrared light radiated | emitted from the light emitting element 67B is detected by the light receiving element 67A.

  Hereinafter, the light receiving element 67A and the light emitting element 67B are collectively referred to as “sensor 67”. A position on an imaginary line segment connecting the light receiving element 67A and the light emitting element 67B is referred to as a “detection position 67P”. The sensor 67 can detect whether there is an object at the detection position 67P.

  As shown in FIG. 2, the sensor 66 is provided in the downstream portion of the cradle 12. The sensor 68 is provided between the side plate members 111 and 112 and downstream of the detection position 67P (see FIG. 20). The sensor 69 is provided in a downstream portion of the cradle 13. Sensors 66, 68, and 69 are contact sensors. Each of the sensors 66, 68, and 69 can output a signal indicating whether or not there is an object at a detection position vertically above. The sensor 66 can detect an object placed on the receiving surface 12A. The sensor 68 can detect an object placed between the side plate members 111 and 112. The sensor 69 can detect an object placed on the receiving surface 13A.

  The sensor 205 (see FIG. 24) is provided in the internal space of the cradle 13. The sensor 205 is a non-contact sensor (reflective sensor) provided below the belt 512. The sensor 205 can detect a reflector provided on the belt 512.

<Guide members 14 and 15>
The guide members 14 and 15 are demonstrated with reference to FIG. 22, FIG. As shown in FIG. 22, the guide member 14 is provided on the left side surface of the side plate member 111, and the guide member 15 is provided on the right side surface of the side plate member 112. The guide member 14 has projecting members 14A and 14B. The guide member 15 includes projecting members 15A and 15B. The shapes of the guide members 14 and 15 are symmetrical. Hereinafter, the guide member 15 will be described, and the description of the guide member 14 will be omitted.

  The shape of the protruding member 15A is a plate shape. The protruding member 15 </ b> A is provided on the right side surface of the side plate member 112. The flat surface of the protruding member 15A faces in the left-right direction. The left side plane of the protruding member 15 </ b> A is connected to the right side surface of the side plate member 112. The length of the protruding member 15 </ b> A in the transport direction is slightly shorter than the length of the side plate member 112 in the transport direction. As shown in FIG. 23, the upstream end portion of the protruding member 15A is inclined rightward toward the downstream side. As shown in FIG. 22, the lower end of the projecting member 15 </ b> A is disposed above the transport path 103. A gap is formed between the lower end of the protruding member 15 </ b> A and the conveyance path 103. The length between the lower end of the protruding member 15A and the conveyance path 103 is larger than the thickness of the base 2 (see FIG. 1). The upper end of the projecting member 15A extends to the vicinity of the lower part of the construction plate 117A (see FIG. 4).

  The projecting member 15B extends to the right side from the upper end of the projecting member 15A and the lower portion of the installation plate 117A, bends downward, and extends in the downward vertical direction. The shape of the protruding member 15B is a plate shape. The projecting members 15A and 15B are opposed to each other, and a gap 15C is formed therebetween. The clearance 15 </ b> C is provided to allow the second plate-like portion 906 (see FIG. 1, described later) of the pedestal 2 to be conveyed to pass therethrough. The lower end of the projecting member 15B is disposed above the transport path 103 and slightly above the lower end of the projecting member 15A. As shown in FIG. 12, the lower end of the projecting member 15B is an area through which the upper end of the first conveying unit 62A passes when the left conveying unit 62 moves in the conveying direction as the belt 512 rotates (hereinafter referred to as “passing region 108”. ”). When the conveyance unit 60 passes through the space sandwiched between the side plate members 111 and 112, the upper end of the first conveyance unit 62A comes into contact with the lower end of the protruding member 15B. Accordingly, the upward movement of the first transport unit 62A is restricted by the protruding member 15B.

  As shown in FIG. 20, the lower end 151B of the protruding member 15B of the guide member 15 is a portion of the lower end of the second extending portion 341C excluding the inclined portion 3413 in the state where the guide mechanism 39 is disposed at the lowest position. (Hereinafter referred to as “lower end portion 3415”). In other words, the lower end portion 3415 is disposed below the passage region 108 including the lower end 151B of the protruding member 15B. The inclined portion 3413 includes a position 3413A above the passage region 108 in the downstream end portion 3416 of the second extending portion 341C and an end portion on the downstream side of the lower end portion 3415 of the second extending portion 341C. It extends along a straight line connecting the position 3413B. Since the position 3413A is disposed above the passage area 108 and the position 3413B is disposed below the passage area 108, the inclined portion 3413 intersects the passage area 108. The downstream end 3416 of the second extending portion 341 </ b> C is disposed at the detection position of the sensor 68, in other words, vertically above the sensor 68. Further, the lower plate-like member 35B on the lower plate-like member 35B on the installation member 35 is disposed above the passage region 108.

  The protruding members 14A and 14B and the gap 14C of the guide member 14 correspond to the protruding members 15A and 15B and the gap 15C of the guide member 15, respectively. A second plate-like portion 907 (see FIG. 1, described later) of the pedestal 2 to be conveyed passes through the gap 14C.

  The length between the projecting members 14 </ b> B and 15 </ b> B is slightly longer than the length between the pair of support members 34 of the guide mechanism 39. The support member 341 is disposed near the left side of the projecting member 14B, and the support member 342 is disposed near the right side of the projecting member 15B. That is, the pair of support members 34 are arranged on both the left and right sides of the space sandwiched between the side plate members 111 and 112 (see FIG. 2). As shown in FIG. 20, the pair of first extending portions 34B, the pair of second extending portions 34C, the guide rollers 30 to 32, and the installation member 35 of the guide mechanism 39 are sandwiched between the protruding members 14B and 15B. The space can be moved up and down.

<Pedestal 2>
The pedestal 2 will be described with reference to FIG. The pedestal 2 is produced by bending a substantially rectangular plate-shaped portion 90 with bent portions 911 and 912. The bent portions 911 and 912 are folds extending in the transport direction and arranged at intervals in the left-right direction. A portion sandwiched between the bent portions 911 and 912 in the plate-like portion 90 is referred to as a “first plate-like portion 905”. A portion of the plate-like portion 90 that stands up from the bent portion 911 is referred to as a “second plate-like portion 906”. A portion of the plate-like portion 90 that stands from the bent portion 912 is referred to as a “second plate-like portion 907”. The first plate-like portion 905 has a plurality of holes 927 formed at equal intervals along the bent portions 911 and 912. The plurality of holes 927 formed in the bent portion 911 are aligned in the left-right direction with any of the plurality of holes 927 formed in the bent portion 912, respectively.

  The conveyance part 60 can be attached to each of the plurality of holes 927. Specifically, as shown in FIG. 1, when the operator places the pedestal 2 on the receiving base 12, each of the plurality of holes 927 has a pair of holes 927 on the downstream side in the transport direction, and the transport unit 60. Install. Thereby, the conveyance part 60 attached to a pair of hole 927 can convey the base 2 to the downstream of a conveyance direction.

<Electrical configuration>
The electrical configuration of the packaging device 1 will be described with reference to FIG. The packaging device 1 includes a CPU 201, a flash ROM 202, a RAM 203, sensors 66, 67, 68, 69, 205, an operation unit 206, a display unit 207, a solenoid 16C, and a heater 861A. The CPU 201 controls the entire packaging device 1. The CPU 201 executes a program stored in the flash ROM 202 to execute a process of packaging the article 3 placed on the pedestal 2 with the film 24. The flash ROM 202 stores programs and the like for various processes to be described later executed by the CPU 201.

  The packaging device 1 includes drive units 211 to 217, motors 221 to 227, and an encoder 232. The drive units 211 to 217 drive the motors 221 to 227 by outputting pulse signals to the motors 221 to 227, respectively. The motors 221 to 227 are DC motors. The encoder 232 outputs a number of pulse signals corresponding to the rotation of the motor 222. The CPU 201 is electrically connected to the flash ROM 202, RAM 203, sensors 66 to 69, 205, operation unit 206, display unit 207, solenoid 16 </ b> C, heater 861 </ b> A, drive units 211 to 217, and encoder 232. Drive units 211 to 217 are electrically connected to motors 221 to 227, respectively.

<Packaging processing>
With reference to FIGS. 25-35, the packaging process (refer FIG. 25) performed by CPU201 of the packaging apparatus 1 is demonstrated. It is assumed that the film roll 22 (see FIG. 5) is attached to the attachment members 141 and 142 (see FIG. 4) before the packaging device 1 is turned on. When the packaging apparatus 1 is powered on, the CPU 201 starts the packaging process by reading and executing the program stored in the flash ROM 202. 26 to 35 are sectional views taken along line AA in FIG.

  As shown in FIG. 25, the CPU 201 initializes the state of the packaging device 1 (S1). Specifically, it is as follows. The CPU 201 drives the motor 221 by controlling the drive unit 211 to raise the guide mechanism 39 and arrange it at the uppermost position. The guide rollers 30 to 33 supported by the pair of support members 34 are arranged at the uppermost position (see FIG. 26). The CPU 201 drives the motor 222 by controlling the drive unit 212 to rotate the belts 511 and 512 (see FIG. 26) of the transport mechanism 50. When the sensor 205 (see FIG. 24) detects the reflecting plate, the CPU 201 controls the driving unit 212 to stop driving the motor 222. As a result, the transport unit 60 protrudes upward from the receiving surface 12A (see FIG. 3) of the cradle 12 (see FIG. 26). The packaging device 1 is in a state in which the user can set the pedestal 2 on the receiving surface 12A of the cradle 12.

  The CPU 201 controls the driving unit 213 to drive the motor 223, and lowers the heating mechanism 86 to be arranged at the lowest position. Each heater 861A of the five heating units 861 is separated downward from the conveyance path 103 (see FIG. 26). The lid member 87 covers the top of the five heating units 861. CPU201 controls actuator 214, drives motor 224, and moves stopper 81 to the lower stream side (refer to Drawing 26). The CPU 201 controls the driving unit 215 to drive the motor 225 and move the cutting unit 77 to the left side. The CPU 201 controls the driving unit 216 to drive the motor 226 to swing the pair of holding members 78. The holding roller 72 is in a state of being separated downward with respect to the base guide roller 71. CPU201 controls light emitting element 67B of sensor 67, and stops light emission.

  The user pulls the film 24 downward from the film roll 22 and sandwiches the film 24 from both sides in the transport direction with the rollers 654A and 654B. The user pulls the film 24 further downward and places it on the upstream side of the guide roller 33. The user further pulls out the film 24 and places the leading end of the film 24 below the conveyance path 103 (see FIG. 26) and downstream of the pedestal guide roller 71 (see FIG. 26). The user places the pedestal 2 on the cradle 12 (see FIG. 26). The pedestal 2 is positioned by the transport unit 60. The side 901 of the first plate-like portion 905 of the base 2 is disposed on the downstream side, and the side 902 is disposed on the upstream side. The article 3 is placed on the first plate-like portion 905 of the base 2 (see FIG. 26).

  The user performs an input operation for notifying the packaging apparatus 1 that preparation has been completed via the operation unit 206. The CPU 201 controls the driving unit 216 to drive the motor 226 to swing the pair of holding members 78. The holding roller 72 is close to the downstream side of the base guide roller 71 (see FIG. 26). The leading end of the film 24 drawn out from the film roll 22 is sandwiched from both sides in the transport direction by the pedestal guide roller 71 and the holding roller 72. The film 24 and the transport path 103 intersect in the vicinity of the front end of the film 24. The film 24 extends in the vertical direction between the upstream side of the guide roller 33 and a portion sandwiched between the pedestal guide roller 71 and the holding roller 72.

  The CPU 201 determines whether a packaging start instruction has been input (S5). CPU201 returns a process to S5, when the packaging start instruction | indication is not input (S5: NO). When the user inputs a packaging start instruction via the operation unit 206, the CPU 201 determines that a packaging start instruction has been input (S5: YES). The CPU 201 drives the solenoid 16C to move the connecting gear 652 (see FIG. 5) to the extended position, and controls the drive unit 217 to rotate the motor 227 (S7). The film 24 is forcibly fed from the film roll 22 by rollers 654A and 654B (see FIG. 5) (see arrow 171 and FIG. 26). The CPU 201 continuously feeds the film 24 by the rollers 654A and 654B until the process of winding the film 24 around the film roll 22 is started by the process of S29 described later. For this reason, the film 24 is loosened.

  The CPU 201 controls the drive unit 212. The CPU 201 rotates the motor 222 in the forward direction. The belts 511 and 512 rotate in the forward direction (the direction of the arrow 181 in FIG. 26). The transport unit 60 transports the base 2 from the upstream side to the downstream side along the transport path 103 (S9). 62 A of 1st conveyance parts approach from the upstream by the clearance gap below the protrusion member 15B. The upper end of the first transport unit 62A moves downstream while contacting the lower end of the protruding member 15B from below.

  The downstream end (side 901) of the first plate-like portion 905 of the base 2 is in contact with the film 24 and then passes over the holding roller 72 (arrow 182 in FIG. 27). The side 901 of the first plate-like portion 905 of the base 2 pushes the film 24 to the downstream side. The side 901 of the first plate-like portion 905 of the base 2 approaches the moving path 104 from the upstream side and passes above the five heating units 861 (see FIG. 27). The leading end of the film 24 is sandwiched between the pedestal guide roller 71 and the holding roller 72. When the film 24 is pushed downstream by the side 901 of the first plate-like portion 905 of the pedestal 2, the leading end of the film 24 goes around the lower surface of the first plate-like portion 905 of the pedestal 2.

  The CPU 201 specifies the number of rotations of the motor 222 after starting the conveyance of the pedestal 2 according to the pulse signal output from the encoder 232 after starting the conveyance to the downstream side of the pedestal 2 by the process of S9. To do. The CPU 201 determines whether or not the side 901 of the first plate-like portion 905 of the pedestal 2 has moved downstream by a predetermined distance with respect to the upper position of the five heating units 861 based on the identified number of rotations of the motor 222. Judgment. When the CPU 201 determines that the side 901 of the first plate-like portion 905 of the pedestal 2 has moved a predetermined distance downstream from the upper position of the five heating units 861, the CPU 201 controls the driving portion 212 to control the motor 222. The driving is stopped, and the conveyance to the downstream side of the base 2 is stopped (S11).

  CPU201 controls actuator 213, drives motor 223, and raises heating mechanism 86 (S13). The lid member 87 is opened. After the heating mechanism 86 is placed in the uppermost position, the CPU 201 controls the drive unit 213 to stop driving the motor 223 and stop the heating mechanism 86 from rising. As shown in FIG. 27, when the heating mechanism 86 is raised to the top (arrow 183), the upper side of each of the five heating units 861 is close to the transfer path 103 from below and slightly above the transfer path 103. Will be placed in the state. The side 901 of the first plate-like portion 905 of the pedestal 2 has moved a predetermined distance downstream from the upper position of the heating mechanism 86, and the film 24 is placed on the lower surface of the first plate-like portion 905 of the pedestal 2. Wrap around. Accordingly, the film 24 is sandwiched between the upper side of the five heating units 861 and the lower surface of the first plate-like portion 905 of the pedestal 2 with the heating mechanism 86 disposed at the top.

  As shown in FIG. 25, the CPU 201 heats the heater 861A (S15). The heater 861A heats and melts the tip of the film 24. The front end of the melted film 24 is adhered to the vicinity of the side 901 in the lower surface of the first plate-like portion 905 of the base 2 (S15). The CPU 201 stops the heating of the heater 861A after a predetermined time has elapsed since the heating of the heater 861A was started. CPU201 controls actuator 213, drives motor 223, and lowers heating mechanism 86 (S19, arrow 184 (refer to Drawing 28)). The upper sides of the five heating units 861 are separated from the conveyance path 103. The lid member 87 is closed. After the heating mechanism 86 is disposed at the lowest position, the CPU 201 controls the drive unit 213 to stop driving the motor 223 and stop the lowering of the heating mechanism 86.

  The CPU 201 controls the drive unit 216 to drive the motor 226 to swing the pair of holding members 78 (S21). As shown in FIG. 28, the pair of holding members 78 swings in the direction of the arrow 185, so that the holding roller 72 is separated downward with respect to the base guide roller 71. The pedestal guide roller 71 and the holding roller 72 release the front end of the sandwiched film 24. The leading edge of the film 24 is melted by the heater 861A heated by the process of S15 (see FIG. 25) and adhered to the lower surface of the pedestal 2.

  As shown in FIG. 25, the CPU 201 controls the drive unit 212 to drive the motor 222. The CPU 201 rotates the motor 222 in the forward direction so that the belts 511 and 512 rotate in the forward direction. The pedestal 2 is conveyed downstream (S23). The leading end of the film 24 is released from the pedestal guide roller 71 and the holding roller 72. The leading end of the film 24 is moved to the downstream side as the pedestal 2 moves while being adhered to the lower surface of the pedestal 2.

  When the pedestal 2 is transported to the downstream side, the side 901 of the first plate-like portion 905 of the pedestal 2 crosses the intersection position 105 where the transport path 103 and the movement path 104 intersect from the upstream side toward the downstream side. . The pedestal 2 moves further downstream (see arrow 186, FIG. 28). The pedestal 2 passes over the sensor 68 (see FIG. 2) and contacts the sensor 68. Based on the signal output from the sensor 68, the CPU 201 determines that the pedestal 2 has been detected by the sensor 68 (S24). As the pedestal 2 moves downstream, the side 901 of the first plate-like portion 905 of the pedestal 2 and the downstream end of the article 3 come into contact with the film 24 and bend at the contact portion. The CPU 201 controls the driving unit 212 to continuously drive the motor 222 to continuously rotate the belts 511 and 512 in the forward direction. The transport unit 60 moves onto the cradle 13, and the downstream side of the base 2 is transported to the cradle 13. An upstream end (side 902) of the first plate-like portion 905 of the base 2 passes over the base guide roller 71.

  As shown in FIG. 28, the pedestal 2 is further conveyed downstream (arrow 186). The side 902 of the first plate-like portion 905 of the base 2 crosses the intersection position 105 from the upstream side to the downstream side. The film 24 extending from the film roll 22 contacts the upstream side of the guide roller 33 and is slightly guided upstream, contacts the lower side of the guide roller 33 and extends downstream, and the first plate-like portion of the base 2. It reaches the side 901 of 905 and the downstream side of the article 3. The film 24 is disposed at a position covering the first plate-like portion 905 of the base 2 and the upper side of the article 3. The guide rollers 30 to 32 are arranged above the film 24 extending above the base 2 and the article 3.

  As shown in FIG. 25, the CPU 201 determines whether the pedestal 2 is no longer detected by the sensor 68 based on the signal output from the sensor 68 (S25). When the CPU 201 determines that the pedestal 2 is continuously detected by the sensor 68 (S25: NO), the CPU 201 returns the process to S26.

  If the side 902 of the first plate-like portion 905 of the pedestal 2 passes downstream above the sensor 68, the sensor 68 will not detect the pedestal 2. Based on the signal output from the sensor 68, the CPU 201 determines that the pedestal 2 is no longer detected by the sensor 68 (S25: YES). In this case, the side 902 of the first plate-like portion 905 of the pedestal 2 has moved downstream from the sensor 68. The CPU 201 controls the driving unit 212 to stop the driving of the motor 222 and stop the conveyance of the base 2 (S26).

  The CPU 201 controls the drive unit 211 to drive the motor 221 to move the guide mechanism 39 to the lowest position (S27). The guide roller 30 moves from the uppermost side to the lowermost side along the movement path 104. In the course of movement, the guide rollers 30 and 32 come into contact with the film 24 disposed below from the upper side, and guide the film 24 downward along the movement path 104 (see arrow 187 and FIG. 29). The film 24 is pressed against the base 2 and the article 3 from above. As shown in FIG. 29, the guide roller 31 is in a state of being in contact with the conveyance path 103 from the lower side in a state of being disposed at the lowest position. The film 24 covers the first plate-like portion 905 of the base 2 and the downstream side, the upper side, and the upstream side of the article 3.

  As shown in FIG. 30, the guide roller 30 is disposed at the lowest position by the process of S27, and the state before the winding of the film 24 around the film roll 22 is started by the process of S29 (see FIG. 25) described later. Thus, the center position of the guide roller 30 in the up-down direction, that is, the position of the center line 301C is disposed below the center 81C of the stopper 81 in the up-down direction by a distance H1 in the up-down direction. The vertical positions of the lower end portion 81L of the stopper 81 and the center line 301C of the guide roller 30 substantially coincide with each other. The lower end portion of the guide roller 30 is disposed below the lower end portion of the stopper 81 in the vertical direction. Hereinafter, the position of the guide roller 30 in a state where the center line 301C is disposed below the center in the vertical direction of the stopper 81 by the distance H1 is referred to as “first position”.

  As shown in FIG. 25, the CPU 201 drives the solenoid 16C to move the connecting gear 652 (see FIG. 5) to the winding position, and controls the drive unit 217 to rotate the motor 227 (S29). The film 24 is wound on the film roll 22 (see arrow 172, FIG. 31). Tension acts on the film 24. Due to the tension acting on the film 24, the film 24 adheres to the base 2 and the article 3.

  As shown in FIG. 32, when the winding of the film 24 is started by the process of S <b> 29 (see FIG. 25), the guide mechanism 39 is pulled upward according to the tension acting on the film 24. The guide mechanism 39 moves upward with respect to the first position and stops (arrow 175). The position of the center line 301C is in a state of being arranged at a distance H2 lower than the center 81C of the stopper 81 in the vertical direction in the vertical direction. The distance H2 is smaller than the distance H1 in the state before the winding of the film 24 is started. The guide roller 30 has moved upward by the length of “distance H1−distance H2.” Hereinafter, the position of the guide roller 30 in a state where the center line 301C is disposed below the center of the stopper 81 in the vertical direction by the distance H2 is referred to as a “second position”.

  As shown in FIG. 25, the CPU 201 rotates the motor 222 in the reverse direction so that the belts 511 and 512 rotate in the reverse direction (S31). The pedestal 2 moves from the downstream side to the upstream side (arrow 188, see FIG. 31). The side 902 of the first plate-like portion 905 of the pedestal 2 contacts the film 24 and pushes it upstream. The left and right sides of the side 902 of the first plate-like portion 905 of the pedestal 2 are gaps 3424 between the first extending portion 342B and the second extending portion 342C of the guiding mechanism 39 (see FIGS. 22 and 23). Enter from the downstream side. The second extending portion 342C presses the first plate-like portion 905 of the pedestal 2 from the upper side and suppresses the pedestal 2 from being lifted upward.

  The side 902 of the first plate-like portion 905 of the base 2 approaches the intersection position 105 from the downstream side. The side 902 of the first plate-like portion 905 of the pedestal 2 crosses the intersection position 105 from the downstream side toward the upstream side. The guide roller 31 of the guide mechanism 39 contacts the lower surface of the pedestal 2 and moves the pedestal 2 along the gap 3424 (see FIGS. 22 and 23) between the first extended portion 342B and the second extended portion 342C. Guide upstream. The side 902 of the first plate-like portion 905 of the pedestal 2 passes above the five heating units 861 and moves upstream. The film 24 is sandwiched between the lower surface of the first plate-like portion 905 of the base 2 and the guide roller 31. The film 24 goes around to the lower side of the base 2.

  In accordance with the pulse signal output from the encoder 232, the CPU 201 specifies the number of rotations of the motor 222 after starting the conveyance to the upstream side of the base 2 in S31. The CPU 201 determines whether the side 902 of the first plate-like portion 905 of the base 2 has moved upstream by a predetermined distance with respect to the upper position of the five heating units 861 based on the specified rotation speed. When the CPU 201 determines that the side 902 of the first plate-like portion 905 of the pedestal 2 has moved a predetermined distance upstream from the upper position of the five heating units 861, the CPU 201 controls the driving unit 212 to control the motor 222. The drive is stopped and the conveyance of the base 2 is stopped (S33).

  The CPU 201 controls the drive unit 214 to drive the motor 224, and moves the stopper 81 of the rotation suppression mechanism 80 from the separation position toward the proximity position upstream (S35). As shown in FIG. 33, the guide roller 30 that has moved from the first position to the second position is disposed on the upstream side of the stopper 81 of the rotation suppression mechanism 80. When the stopper 81 moves toward the proximity position (arrow 189), the plurality of convex portions 26 of the stopper 81 are fitted in the concave portion 30B disposed on the downstream side among the plurality of concave portions 30B of the guide roller 30 ( (See FIG. 21). The film 24 wound around the guide roller 30 is sandwiched between the plurality of concave portions 30B and the plurality of convex portions 26, and cannot move.

  As shown in FIG. 25, the CPU 201 controls the drive unit 217 to stop the rotation of the motor 227 (S37). The winding of the film 24 onto the film roll 22 is stopped. The tension applied to the film 24 by the winding of the film 24 is maintained.

  The CPU 201 controls the driving unit 215 to drive the motor 225, and moves the cutting unit 77 from the left side to the right side along the guide rail 74 (see FIG. 14) (S39). When the cutting portion 77 moves to the right side, the film 24 extends from the portions sandwiched between the plurality of concave portions 30 </ b> B and the plurality of convex portions 26 to the side of the film roll 22 and between the guide rollers 30 and 32. Then, it is cut by the blade portion 771. The cutting part 77 cuts off the part of the film 24 that covers the first plate-like part 905 and the article 3 of the base 2 from the film roll 22 side.

  After the film 24 is cut, the portion of the film 24 cut off from the film roll 22 side tends to come out upward from the portion sandwiched between the guide roller 30 and the stopper 81 due to the tension acting on the film 24. However, since the plurality of concave portions 30B of the guide roller 30 and the plurality of convex portions 26 of the stopper 81 are fitted and the film 24 is sandwiched therebetween, the film 24 is separated from the portion sandwiched between the guide roller 30 and the stopper 81. I can't escape. On the other hand, the cut end of the film 24 extending from the film roll 22 hangs down below the pedestal guide roller 71. The CPU 201 controls the drive unit 216 to drive the motor 226 to swing the pair of holding members 78 (S41). As shown in FIG. 34, the pair of holding members 78 swings in the direction of the arrow 190. The holding roller 72 is disposed in the vicinity of the pedestal guide roller 71 on the downstream side. An end portion of the film 24 cut by the cutting portion 77 is sandwiched between the pedestal guide roller 71 and the holding roller 72.

  As shown in FIG. 25, the CPU 201 controls the drive unit 213 to drive the motor 223 and raise the heating mechanism 86 (S43). As shown in FIG. 34, in the process of ascending the heating mechanism 86, the lid member 87 is opened by pushing the other end side 87B upward by the five heating units 861. After the heating mechanism 86 is placed in the uppermost position, the CPU 201 controls the drive unit 213 to stop driving the motor 223 and stop the heating mechanism 86 from rising. With the heating mechanism 86 raised to the top (arrow 191), the upper surfaces of the five heating units 861 approach the transport path 103 from below. Note that the side 902 of the first plate-like portion 905 of the pedestal 2 is moved upstream by a predetermined distance from the upper position of the five heating units 861. Since the plurality of concave portions 30 </ b> B of the guide roller 30 and the plurality of convex portions 26 of the stopper 81 are fitted to restrict the movement of the film 24, the vicinity of the side 902 in the lower surface of the first plate-like portion 905 of the base 2. A film 24 is disposed on the surface. Therefore, when the heating mechanism 86 is raised and disposed at the uppermost position, the film 24 is sandwiched between the upper surfaces of the five heating units 861 and the base 2.

  Note that the five heating units 861 try to lift the pedestal 2 upward in response to the heating mechanism 86 being raised and disposed at the uppermost position. On the other hand, the 2nd extension part 342C contacts the upper surface of the base 2, and suppresses that the base 2 lifts upwards. Further, when the pedestal 2 is slightly lifted upward, the installation member 35 contacts the side 902 of the first plate-like portion 905 of the pedestal 2 over the entire left and right direction. Thereby, the erection member 35 suppresses the pedestal 2 from further lifting upward.

  As shown in FIG. 25, the CPU 201 causes the light emitting element 67B of the sensor 68 to emit light (S45). The infrared light radiated from the light emitting element 67 </ b> B passes upward on the downstream side of the heating mechanism 86. Since the lid member 87 is open, infrared light is not shielded by the lid member 87. The CPU 201 determines whether the light receiving element 67A of the sensor 68 has received the infrared light emitted by the light emitting element 67B (S47). Here, when the pedestal 2 is disposed above the light emitting element 67B, the infrared light is shielded by the pedestal 2, so the light receiving element 67A does not receive the infrared light.

  When the CPU 201 determines that the light receiving element 67A is not receiving infrared light based on the signal output from the light receiving element 67A (S47: NO), the CPU 201 determines that the pedestal 2 is detected by the sensor 67. In this case, the base 2 is arranged above the five heating units 861. The CPU 201 heats the heater 861A (S49). The heater 861 </ b> A heats the end portion of the film 24 cut by the cutting portion 77 to melt the film 24. The melted film 24 is adhered to the vicinity of the side 902 of the first plate-like portion 905 of the base 2 (S49). The film 24 cut from the film roll 22 is in a state of covering the base 2 and the article 3. The CPU 201 stops heating the heater 861A after a predetermined time has elapsed since the heating of the heater 861A was started in S49. CPU201 controls actuator 213, drives motor 223, and lowers heating mechanism 86 (S51, arrow 192 (refer to Drawing 35)). The upper surfaces of the five heating units 861 are separated from the transport path 103. The lid member 87 is closed and covers the five heating units 861 and the light emitting element 67B from above. The CPU 201 stops the light emission by the light emitting element 67B. After the heating mechanism 86 is disposed at the lowest position, the CPU 201 controls the driving unit 213 to stop the rotation of the motor 223.

  As shown in FIG. 25, the CPU 201 controls the driving unit 214 to drive the motor 224 to move the stopper 81 of the rotation suppression mechanism 80 to the downstream side (S53, arrow 193 (see FIG. 35)). The stopper 81 moves downstream from the proximity position toward the separation position, and the plurality of convex portions 26 of the stopper 81 are separated from the plurality of concave portions 30 </ b> B of the guide roller 30. The guide roller 30 is in a rotatable state.

  The CPU 201 controls the driving unit 212 to drive the motor 222. The CPU 201 rotates the motor 222 in the forward direction so that the belts 511 and 512 rotate in the forward direction. The pedestal 2 is conveyed downstream (S55, arrow 193 (see FIG. 35)). The pedestal 2 and the article 3 that have been packaged are conveyed downstream. The CPU 201 ends the packaging process.

  On the other hand, when the infrared light radiated from the light emitting element 67B is received by the light receiving element 67A, the pedestal 2 may not be disposed above the light emitting element 67B. If the CPU 201 determines that the light receiving element 67A has received infrared light based on the signal output from the light receiving element 67A (S47: YES), it determines that the pedestal 2 is not detected by the sensor 67. In this case, the pedestal 2 may not be arranged above the five heating units 861. The CPU 201 causes the display unit 207 to display a notification screen that notifies that an error has occurred (S59). The CPU 201 ends the packaging process.

<Main effects of the above embodiment>
As described above, the packaging device 1 brings the stopper 81 of the rotation suppression mechanism 80 close to the guide roller 30 and sandwiches the film 24 between the stopper 81 and the guide roller 30 (S35). Thus, the film 24 sandwiched between the guide roller 30 and the stopper 81 is prevented from moving upward according to the tension. Here, the stopper 81 is provided with a plurality of convex portions 26, and the guide roller 30 is provided with a plurality of concave portions 30 </ b> B that fit into the plurality of convex portions 26. Accordingly, the packaging device 1 cuts the film 24 (S39), and after the side of the film 24 that comes into contact with the article is cut off from the film roll 22 side, the film 24 is bonded to the base 2 (S49). In the meantime, the movement of the film 24 can be effectively suppressed, and the decrease in the adhesion of the film 24 to the article 3 can be suppressed.

  Each of the plurality of convex portions 26 of the stopper 81 has a plurality of paired convex portions 27. In each of the plurality of paired protrusions 27, a plurality of extending protrusions 28 extending along the left-right direction are arranged with a space in the left-right direction therebetween. The plurality of assembled convex portions 27 are arranged at intervals in the vertical direction. And about the two set convex parts 27 adjacent to an up-down direction, the some extended convex part 28 contained in the upper set convex part 27, and the some extended convex part 28 contained in the lower set convex part 27 Are arranged alternately in the vertical direction. In this case, the stopper 81 is moved to the proximity position, and the left and right ends of the plurality of extending protrusions 28 are attached to the film 24 in a state where the plurality of recesses 30B and the plurality of protrusions 26 are fitted. Make strong contact. In addition, since a plurality of extending protrusions 28 are provided and a plurality of end portions in the left-right direction are formed, the film 24 is more difficult to move with respect to the guide roller 30 and the stopper 81. In addition, the upper plurality of extending protrusions 28 and the lower plurality of extending protrusions 28 are alternately formed, so that the film 24 particularly in the vertical direction with respect to the guide roller 30 and the stopper 81. It becomes difficult to move. Therefore, the packaging device 1 can effectively suppress the movement of the film 24 in the vertical direction with respect to the guide roller 30 and the stopper 81.

  Of the two convex protrusions 27 adjacent in the vertical direction, the lower convex protrusions 27 of the lower convex protrusions 27 are located below the respective left and right ends of the plurality of extending convex parts 28 of the upper convex protrusion 27. A part of each of the plurality of extending protrusions 28 is disposed. That is, at least a part in the left-right direction overlaps between the plurality of extending protrusions 28 adjacent in the vertical direction. In this case, the film 24 becomes more difficult to move in the vertical direction with respect to the guide roller 30 and the stopper 81. Moreover, L1 which is the length in the left-right direction of each of the plurality of extending protrusions 28 is larger than L2 which is the length of the gap in the left-right direction of each of the plurality of extending protrusions 28. In this case, the area of the part which contacts the film 24 among the some extended convex parts 28 can be enlarged relatively. Therefore, the packaging device 1 can further effectively suppress the vertical movement of the film 24 relative to the guide roller 30 and the stopper 81.

  In the plurality of convex portions 26 and the plurality of concave portions 30B fitted to each other, the extending direction T of the plurality of convex portions 26 is inclined downward with respect to the direction S parallel to the transport direction, which is the moving direction of the stopper 81. . Similarly, the extending direction Q1 of the plurality of recesses 30B is inclined downward with respect to the direction P1 parallel to the conveying direction, which is the moving direction of the stopper 81. In these cases, the plurality of concave portions 30B and the plurality of convex portions 26 are easily caught on the film when the film 24 sandwiched between the guide roller 30 and the stopper 81 is about to move upward. Therefore, the packaging device 1 can further effectively suppress the movement of the film 24.

  The winding of the film 24 is started (S29), and the guide mechanism 39 is pulled upward by the film 24 in response to the tension acting on the film 24. On the other hand, in the packaging device 1, the center line 301C of the guide roller 30 is lower than the center 81C in the vertical direction of the stopper 81 by a distance H1 before the winding of the film 24 is started by the process of S29. It is arranged at the first position on the side. On the other hand, in the state after the winding of the film 24 is started by the process of S29, the center line 301C of the guide roller 30 is “distance H1-distance H2” above the first position and the vertical direction of the stopper 81. Is located at the second position below the center 81C by a distance H2. Therefore, even when tension is applied to the film 24 in accordance with the winding of the film 24 and the guide roller 30 is pulled upward, the plurality of concave portions 30B of the guide roller 30 and the plurality of convex portions 26 of the stopper 81 are provided. Maintains the fitted state. The plurality of concave portions 30 </ b> B and the plurality of convex portions 26 can continuously sandwich the film 24. Accordingly, the packaging device 1 can effectively suppress the movement of the film 24 even after tension is applied to the film 24.

  The guide roller 30 is rotatably supported by the support member 341 at the right end, and the left end by the support member 342 so as to be rotatable. For this reason, the packaging apparatus 1 can suppress the support members 341 and 342 from coming into contact with the film 24 when the guide roller 30 guides the film 24 in accordance with the movement along the movement path 104.

  The guide roller 30 has a plurality of divided rollers 301 to 308. The split rollers 301 to 308 are connected to each other with play. In this case, when the stopper 81 comes close to the guide roller 30 and any of the divided rollers 301 to 308 rotates and the plurality of convex portions 26 of the stopper 81 are fitted to the plurality of concave portions 30B, the remaining divided rollers 301 are placed. ˜308 each rotate within the range of play. Accordingly, the plurality of concave portions 30 </ b> B of the remaining divided rollers 301 to 308 can be easily fitted into the plurality of convex portions 26 of the stopper 81. As described above, the packaging device 1 is configured such that the guide roller 30 has a plurality of divided rollers 301 to 308, and when the stopper 81 is brought close to the guide roller 30 by connecting each other with play. The plurality of convex portions 26 can be easily meshed with the plurality of concave portions 30B.

<Modification>
The present invention is not limited to the above embodiment, and various modifications can be made. In the above-described embodiment, the packaging device 1 changes the relative positional relationship in the conveyance direction between the pedestal 2 and the article 3 and the guide mechanism 39 by conveying the pedestal 2 with the conveyance mechanism 50. In contrast, the packaging device 1 changes the relative positional relationship in the transport direction between the pedestal 2 and the article 3 and the guide mechanism 39 by moving the guide mechanism 39 in the transport direction with respect to the pedestal 2 and the article 3. You may let them.

  The shape of the base portion 25 of the stopper 81 of the rotation suppression mechanism 80 was substantially a rod shape. On the other hand, the base of the stopper 81 may have a cylindrical shape. And the some convex part 26 may be provided along the side surface of a cylindrical base part. In the above, the guide roller 30 is provided with a plurality of recesses 30B. The stopper 81 was provided with a plurality of convex portions 26 that fit into the plurality of concave portions 30B. On the other hand, for example, the stopper 81 may be provided with a plurality of recesses. The guide roller 30 may be provided with a plurality of convex portions that fit into the plurality of concave portions of the stopper 81.

  In the above, the plurality of convex portions 26 have a plurality of paired convex portions 27. The plurality of extended protrusions 28 included in each of the plurality of paired protrusions 27 are alternately arranged in the vertical direction. On the other hand, each of the plurality of assembled convex portions 27 may not have the plurality of extended convex portions 28 and may have only one extended convex portion extending in the left-right direction. In addition, each extending convex portion of each of the plurality of assembled convex portions 27 may be alternately arranged in the vertical direction or may not be alternately arranged. For example, the position of each extended protrusion of each of the plurality of assembled protrusions 27 may be aligned in the vertical direction.

  For each of the two paired convex portions 27 adjacent to each other in the vertical direction, a plurality of the bottom paired convex portions 27 are provided below the left and right end portions of the plurality of extended convex portions 28 of the upper paired convex portion 27. A part of the extended protrusion 28 was disposed. On the other hand, on the lower side of the left and right end portions of the plurality of extending projections 28 of the upper grouping projection 27, the left and right between the plurality of extending projections 28 of the lower grouping projection 27 A gap in the direction may be arranged.

  In the above description, L1 that is the length in the left-right direction of each of the plurality of extending protrusions 28 is longer than L2 that is the length in the left-right direction of the gap in the left-right direction of the plurality of extending protrusions 28. On the other hand, L1 and L2 may be the same length, or L1 may be shorter than L2.

  In the above, with respect to the plurality of recesses 30B and the plurality of projections 26 that are fitted to each other with the stopper 81 disposed in the proximity position, the direction Q1 in which the plurality of recesses 30B extends is relative to the direction P1 that faces the upstream side. The direction T in which the plurality of convex portions 26 are inclined downward is inclined downward with respect to the direction S facing the downstream side. On the other hand, the extending direction Q1 of the plurality of recesses 30B may face the same direction as the direction P1, or may be inclined upward with respect to the direction P1. A direction S in which the plurality of convex portions 26 extend may face the same direction as the direction T, or may incline upward with respect to the direction T. The direction in which the direction Q1 extends (upper side, the same, the lower side with respect to the direction P1) and the direction in which the direction S extends (upper side, the same, the lower side with respect to the direction T) may be any combination.

  In the above, the shape of the plurality of convex portions 26 is not limited to a substantially plate shape. For example, as shown in FIG. 36, the plurality of convex portions 26 may have a shape in which the width in the vertical direction decreases from the base portion 25 side toward the distal end side. The tips of the plurality of convex portions 26 may be sharp. Further, the plurality of convex portions 26 may be needle-shaped with sharp tips. In this case, when the stopper 81 moves to the close position, the tips of the plurality of convex portions 26 can be bitten into the film 24. Therefore, the packaging device 1 can reliably restrict the movement of the film 24 when the film 24 is sandwiched between the guide roller 30 and the stopper 81.

  In the above, the center line 301C of the guide roller 30 that has moved to the lowermost side of the movement path 104 before the winding of the film 24 is started by the process of S29 is more than the center 81C of the stopper 81 in the vertical direction. It was arranged at the first position below the distance H1. On the other hand, in the state after the winding of the film 24 is started by the processing of S29, the center line 301C of the guide roller 30 is “distance H1-distance H2” above the first position and the center of the stopper 81. It was placed at the second position below the distance H2 by 81C. On the other hand, in the present invention, it is only necessary that the plurality of concave portions 30B of the guide roller 30 are fitted to any of the plurality of convex portions 26 of the stopper 81 in a state after the winding of the film 24 is started. In this case, the center line 301C of the guide roller 30 disposed at the first position may be disposed above the center 81C of the stopper 81. In addition, the guide roller 30 is held at the first position even when tension is applied to the film 24 and does not have to move upward.

<Others>
The left-right direction is an example of the “width direction” in the present invention. The stopper 81 of the rotation suppression mechanism 80 is an example of the “suppression member” in the present invention. The CPU 201 that performs the process of S29 is an example of the “applying unit” in the present invention. The CPU 201 that performs the process of S35 is an example of the “holding unit” in the present invention. The CPU 201 that performs the process of S39 is an example of the “cutting unit” in the present invention.

1: packaging device 2: pedestal 3: article 22: film roll 24: film 26: convex portion 27: assembled convex portion 28: extended convex portion 30: guide roller 30B: concave portion 34: support member 39: guide mechanism 50: transport Mechanism 77: Cutting part 78: Holding member 80: Rotation suppression mechanism 81: Stopper 86: Heating mechanism 103: Transport path 104: Movement path 105: Crossing position 201: CPU
271, 272, 273, 274, 275: assembled convex portions 281, 282, 283, 284, 285: extended convex portion 301 C: center line

Claims (7)

A packaging device for packaging a pedestal and an article placed on the pedestal with a film,
A transport mechanism for transporting the pedestal on which the article is placed;
A width direction that is movable along a movement path extending in a vertical direction with respect to a conveyance path through which the pedestal conveyed by the conveyance mechanism passes and intersects both the conveyance direction of the pedestal and the vertical direction. A guide roller extending to
A mounting portion that is provided on the upper side with respect to the transport path and is capable of mounting a film roll on which the film is wound,
Among the movement paths, it is possible to move to a separation position that is separated from the guide roller that has been moved to a lower position below the conveyance path, and a proximity position that is close to the guide roller that has been moved to the lower position. A restraining member,
Applying means for applying tension to the film by winding the film on the film roll after the guide roller has moved from the upper position on the transport path to the lower position with respect to the transport path. When,
After tension is applied to the film by the applying means, the restraining member is moved from the separation position to the close position, and the film is placed between the guide roller and the restraining member moved to the lower position. Holding means for pinching;
A cutting means for cutting a part on the film roll side with respect to a part of the film that contacts the guide roller after the film is sandwiched between the guide roller and the restraining member by the holding means; Prepared,
One side member that is one of the guide roller and the suppression member and the other side member that is the other in the state where the suppression member has moved to the proximity position with respect to the guide roller that has moved to the lower position. Among these, the one side member is provided with a convex portion extending toward the other side member, and the other side member has a concave portion that fits into the convex portion in a state where the suppression member has moved to the proximity position. Provided ,
The convex portion is
A plurality of extended projections extending along the width direction and arranged in a row in the width direction are spaced apart in a direction perpendicular to the width direction and along the surface of the one side member. Are lined up,
The first set convex portions and the second set convex portions that are two set convex portions that are orthogonal to the width direction and are adjacent in the direction along the surface of the one side member are included in the first set convex portions. A plurality of first extending protrusions that are a plurality of extending protrusions and a plurality of second extending protrusions that are a plurality of extending protrusions included in the second set of protrusions, The packaging device is characterized by being formed alternately in a direction perpendicular to and along the surface of the one side member . The plurality of second protrusions at positions adjacent to the width direction end of each of the plurality of first extending protrusions and perpendicular to the width direction and along the surface of the one side member. The packaging apparatus according to claim 1 , wherein a part of each of the extended protrusions is disposed. Each of the length of the width direction of the plurality of extension設凸portion, characterized in that said at plurality of extension設凸portion above said widthwise length of the interval between each claim 1 or 2. The packaging device according to 2 . The extending direction of the convex portion and the concave portion in a state of being fitted to each other is perpendicular to the width direction and along the surface of the one side member with respect to the moving direction of the suppressing member. Inclined to one side,
The direction in which the recess extends is inclined to one side or the other side in a direction perpendicular to the width direction and along the surface of the other side member with respect to the moving direction of the suppressing member. The packaging device according to any one of 1 to 3 . The packaging device according to any one of claims 1 to 4 , wherein the width of the convex portion decreases toward the tip. The guide center which is the center of the vertical direction of the guide roller moved to the lower position in the state before tension is applied to the film by the applying means is the center of the vertical direction of the suppressing member. Arranged at a first position which is a position below the position of
The tension center is applied to the film by the applying means, and the guide center of the guide roller is disposed at a second position which is an upper position than the first position. The packaging device according to any one of 5 . The guide roller, one side support member for supporting from one side of the width direction, and any one of claims 1 to 6, characterized in that it comprises a support member having a second side support member for supporting the other side The packaging device described in 1.

Images