JP2016132487A - Packing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing device for dispensing with restoration work for tearing off a film from a heater.SOLUTION: A packing device packs a pedestal 2 and an article by a film 24. The packing device comprises a carrying mechanism for carrying the pedestal for placing the article and a heater 861A, and comprises a heating mechanism 86 movable to a separate position (a)(f) large in a distance between a carrying passage and the heater 861A for passing the pedestal 2 carried by the carrying mechanism and a proximity position (c) small in the distance, a separation member 87 for separating the film 24 from the heater 861A and a movement mechanism 88 having a first connection part 88A connected to the separation member 87 and moving the separation member 87 in response to the fact of moving the heating mechanism 86 to the separation position from the proximity position. The separation member 87 is arranged on the outside of a passing area 861B in a state of arranging the heating mechanism 86 in the proximity position, and at least a part of the separation member 87 passes in the crossing direction through the passing area 861B in response to the fact of moving to the separation position.SELECTED DRAWING: Figure 12

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 case of the packaging apparatus described in Patent Document 1, a heater is disposed below the pedestal conveyance path. The heater ascends from a position separated from the conveyance path to a position close thereto. As a result, the heater sandwiches the film between the base and the heater. In this state, the heater is heated. The film melts and welds to the pedestal. The heater descends to a position separated from the transport path. By performing the above steps on the upstream side and the downstream side in the conveyance direction of the pedestal, films are welded to the upstream side and the downstream side of the pedestal, respectively. Thereby, the article on the pedestal is packaged by the film.

JP 2014-97835 A

  In the above packaging apparatus, a film melted by heating of the heater may be welded to the heater. In this case, in order to continue using the packaging apparatus, there is a problem that the operator has to perform a return operation for peeling the film from the heater.

  An object of the present invention is to provide a packaging device that does not require a return operation for peeling a film from a heater.

  The packaging device of the present invention is a packaging device that wraps a pedestal and an article placed on the pedestal with a film, and includes at least a transport mechanism that transports the pedestal on which the article is placed, and a heater. It is a member provided, and moves to a separation position where the distance between the conveyance path through which the pedestal conveyed by the conveyance mechanism passes and the heater is relatively large, and a proximity position where the distance is relatively small A possible heating member, a peeling member for peeling the film from the heater, and a first connecting portion connected to the peeling member, wherein the heating member moves from the proximity position to the separation position. And a moving mechanism for moving the peeling member in response to the peeling member, wherein the heating member is disposed between the proximity position and the separation position in a state where the heating member is disposed at the proximity position. At least a part of the peeling member is arranged outside the passing region through which the heater passes when moving, and when the peeling member moves in response to the heating member moving from the proximity position to the separation position. Passes through the passage area in a crossing direction that intersects the moving direction of the heating member.

  In the present invention, the packaging device moves the heating member to a close position, heats the heater with the film sandwiched between the pedestal and the heater, melts the film, and welds the film to the pedestal. The packaging device packages the pedestal and the article with the film by welding the film to the pedestal with the heating member while conveying the pedestal with the transport mechanism. The moving mechanism moves the peeling member in response to the heating member moving from the proximity position to the separation position. At this time, at least a part of the peeling member passes through the passage region in the crossing direction. In this case, for example, when the film adheres to the heater when the heater is heated, the peeling member can peel the film from the heater. Since the moving mechanism forcibly moves the peeling member according to the movement of the heating member, the peeling member can appropriately peel the film from the heater. For this reason, the operator does not have to perform the return operation of peeling the film from the heater when the film adheres to the heater. Therefore, the packaging apparatus can return to a state in which the next packaging process can be performed without the operator performing a return operation even when the film is adhered to the heater.

  In this invention, the said peeling member has an edge part extended over between a 1st position and a 2nd position, The said peeling member according to the said heating member moving to the said separation position from the said proximity position The first position may pass through the transport path side with respect to the heater, and the second position may pass through the side opposite to the transport path with respect to the heater. In this case, the packaging device can peel the film fused to the heater from both sides near the heater and near the conveyance path.

  In this invention, at least one part of the said peeling member may be arrange | positioned in the said passage area in the state in which the said heating member was arrange | positioned in the said separation position. In this case, it is possible to suppress the worker from touching the heater of the heating member arranged at the separation position by the peeling member.

  In the present invention, the moving mechanism may further include a second connecting portion that is connected to the heating member. In this case, since the moving mechanism is connected to the peeling member and the heating member, the peeling member can be easily moved according to the movement of the heating member.

  In the present invention, the transport mechanism transports the pedestal in a state where the heating member is disposed at the separation position, and the heating member is disposed at any position closer to the proximity position than the separation position. In the state, the pedestal may not be transported. In this case, it can suppress that a base is conveyed by a conveyance mechanism in the middle of heating a film with a heater.

  In the present invention, a detection unit that detects the number of rotations of the film roll on which the film is wound, and a notification unit that performs notification when the number of rotations detected by the detection unit satisfies a predetermined condition. May be. In this case, the packaging apparatus can notify the operator that the film may have been peeled off from the pedestal.

  In the present invention, the film roll includes rotating means for rotating in the winding direction in which the film is wound, and the notification means is in a state where the film roll is rotated in the winding direction by the rotating means, Notification may be performed when the rotation speed detected by the detection unit satisfies a predetermined condition. In this case, the packaging device can appropriately detect that the film has been peeled off from the base.

  In the present invention, the notification means includes a first notification means for performing a notification when the number of revolutions detected every first predetermined time by the detection unit is constant regardless of the passage of time, and a second predetermined time. And a second notifying unit for notifying when the number of rotations detected by the detecting unit is equal to or less than a predetermined threshold value. In this case, the packaging device can notify the operator by distinguishing each of the different states in which the film has been peeled off from the pedestal.

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 a guide mechanism 39. FIG. 4 is a perspective view of a heating mechanism 86 and a rotation suppression mechanism 80. 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 flowchart of a packaging apparatus, Comprising: FIG. 7 is a continuation. 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.

  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 where the pedestal 2 is transported on the receiving surfaces 12A and 13A is referred to as a “transport path 103” (see FIG. 9).

  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. 6) drives the pulleys 52B and 53B to rotate. 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.

<Film roll 22>
As shown in FIG. 2, the film roll 22 is detachably mounted on the inner side of each upper end portion of the side plate members 111 and 112. The film roll 22 has a film 24 (see FIG. 1) and a substantially cylindrical winding shaft (not shown). The film 24 is wound around a winding shaft. A film gear 23B is provided on the right side surface of the winding shaft. The film 24 fed out from the film roll 22 is sandwiched from both sides in the transport direction by a roller 654A and a roller (not shown) disposed on the downstream side of the roller 654A. The film gear 23B meshes with the connecting gear 651 from the upstream side in a state where the film roll 22 is mounted inside the upper ends of the side plate members 111 and 112, respectively. The rotational driving force of the motor 227 (see FIG. 6) is selectively transmitted to the connecting gear 651 and the roller 654A. When the rotational driving force of the motor 227 is transmitted to the connection gear 651, 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, when the rotational driving force of the motor 227 is transmitted to the roller 654A, the roller 654A rotates counterclockwise. When the roller 654A rotates counterclockwise, the roller 654A feeds the film 24 from the film roll 22. The solenoid 16C (see FIG. 6) switches whether the rotational driving force of the motor 227 is transmitted to the connection gear 651 or the roller 654A.

<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. 4). 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 FIG. 4, the shapes of the support members 341 and 342 are symmetrical. Support members 341 and 342 are spaced apart in the left-right direction. 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 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 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 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 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. A plurality of holes are formed in the base portion 341A and the third extending portion 341D in the vertical direction. Screws for connecting the support member 341 to the carriage 349 (see FIG. 2) are inserted through the plurality of holes.

  The base part 342A, the first extension part 342B, the second extension part 342C, and the third extension part 342D of the support member 342 are respectively the base part 341A, the first extension part 341B, and the second extension part of the support member 341. It corresponds to the installation part 341C and the third extension part 341D. 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”.

  As shown in FIGS. 4 and 9, the guide rollers 30 (see FIG. 9), 31, and 32 (see FIG. 9) 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 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 342B. 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 342B. The guide roller 33 is disposed above the guide roller 31. The installation member 35 is disposed above the guide roller 33. 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. 9 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 guide roller 31 contacts the conveyance path 103 from below. 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 FIG. 4) is arranged along the transport path 103. Hereinafter, as illustrated in FIG. 9, 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 FIG. 2, a pedestal guide roller 71 extending in the left-right direction is provided 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 FIG. 9 and the like). It is done. 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. 5, a pair of plate-like members 70 </ b> B are disposed below the pedestal guide roller 71. The left and right sides of the pedestal guide roller 71 are rotatably supported by a pair of plate-like members 70B.

  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 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. 6). 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. 5), and the holding roller 72 is separated downward from the pedestal guide roller 71 (FIG. 13 and the like). To see). As shown in FIG. 9, 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. 5, a heating mechanism 86 is provided on the downstream side of the pair of plate-like members 70B. The heating mechanism 86 includes five pressing members 860, five heating units 861, five holding members 862, and a base member 863.

  Each of the five pressing members 860 has a substantially rectangular parallelepiped shape. The five pressing members 860 are arranged in a straight line in the left-right direction. Evenly spaced gaps are formed between the five pressing members 860. Each of the five pressing members 860 has a rubber plate on the upper surface. Each of the five heating units 861 is disposed on the downstream side of each of the five pressing members 860. Each of the five heating units 861 has a substantially rectangular parallelepiped shape, and has substantially the same shape as each of the five pressing members 860. The five heating units 861 are aligned in the left-right direction. Between the five heating units 861, gaps at equal intervals are formed. Each of the five heating units 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.

  Each of the five holding members 862 is a substantially U-shaped plate member in a side view. The lengths of the five holding members 862 in the left-right direction are substantially the same as the lengths of the five pressing members 860 and the five heating units 861 in the left-right direction. Each of the five pressing members 860 and each of the five heating units 861 are held in the respective grooves of the five holding members 862. Each of the five pressing members 860 and the upper surface of each of the five heating units 861 are disposed above the respective upper ends of the five holding members 862. The five holding members 862 are arranged in a straight line in the left-right direction. Evenly spaced gaps are formed between the five 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. 6) 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 five holding members 862 move in the vertical direction. As the five holding members 862 move in the vertical direction, the five pressing members 860 and the five heating units 861 also move in the vertical direction.

  When the pedestal member 863 is disposed at the lowest position, the heaters 861A on the upper surfaces of the five heating units 861 are separated downward from the conveyance path 103 (see FIG. 9) (see FIG. 5). Hereinafter, the position of the heating mechanism 86 when the heater 861A is separated downward from the conveyance path 103 is also referred to as a “separation position”. On the other hand, when the pedestal member 863 is disposed at the uppermost position, the heaters 861A on the upper surfaces of the five heating units 861 are disposed slightly above the transport path 103 (see FIG. 10). Hereinafter, the position of the heating mechanism 86 when the heater 861A approaches the conveyance path 103 is also referred to as “proximity position”.

<Peeling member 87, moving mechanism 88>
The peeling member 87 includes a first plate-like portion 871 (see FIGS. 12 and 16), a second plate-like portion 872, and four third plate-like portions 873. The first plate portion 871 extends in the vertical direction perpendicular to the transport direction in the state where the heating mechanism 86 is disposed at the separation position (FIGS. 12A, 12F, 16G, and 1). . The 1st plate-shaped part 871 is arrange | positioned upstream with respect to the heating mechanism 86 of the state arrange | positioned in the separation position. The second plate-like portion 872 extends horizontally from the upper end of the first plate-like portion 871 toward the downstream side in a state where the heating mechanism 86 is disposed at the separation position. The length in the left-right direction of each of the first plate-like portion 871 and the second plate-like portion 872 is slightly shorter than the length between the pair of plate-like members 70B. The lower end portion 871A (see FIGS. 12 and 16) of the first plate-like portion 871 is rotatably supported on the inner side surfaces of the pair of plate-like members 70B. The second plate-like portion 872 covers each of the five pressing members 860 and the five heating units 861 from above in a state where the heating mechanism 86 is disposed at the separation position. Hereinafter, an end portion where the first plate-like portion 871 and the second plate-like portion 872 are connected is referred to as an “end portion 871B”, and the end portion of the second plate-like portion 872 opposite to the end portion 871B is referred to as “end portion 871B”. , “End portion 872A”.

  The four third plate-like portions 873 extend downward from the lower surface of the second plate-like portion 872 in a state where the heating mechanism 86 is disposed at the separation position. Each of the four third plate-like portions 873 is orthogonal to the left-right direction. The four third plate-like portions 873 are arranged at equal intervals in the left-right direction. Each of the four third plate-like portions 873 is disposed in a gap between the five pressing members 860, the five heating units 861, and the five holding members 862 of the heating mechanism 86 in a state of being separated from each other. The Hereinafter, in the state where the heating mechanism 86 is disposed at the separation position, the downstream end portion of the two third plate-like portions 873 in the transport direction is referred to as an “end portion 874”. The position of the end portion 874 on the side close to the second plate-shaped portion 872 is referred to as “first position 874A” (see FIG. 12D and FIG. 16J), and the position on the separating side is This is referred to as “second position 874B”.

  The moving mechanism 88 is a rod-shaped member. The first connecting portion 88A, which is one end side of the moving mechanism 88, is rotatably connected to the downstream side of the right end of the second plate-like portion 872 in a state where the heating mechanism 86 is disposed at the lowest position. The second connecting portion 88 </ b> B that is the other end side of the moving mechanism is rotatably connected to the right side surface of the lower portion of the five holding members 862 among the base members 863 of the heating mechanism 86. When the heating mechanism 86 moves from the lowest position to the highest position, the moving mechanism 88 rotates the peeling member 87 (see FIGS. 12 and 16, which will be described later). When the heating mechanism 86 moves from the separation position to the proximity position, the second plate-shaped portion 872 of the peeling member 87 does not cover the five pressing members 860 and the five heating units 861 from above (FIG. 12). , See FIG. 16, described later).

<Rotation suppression mechanism 80>
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. The shape of the stopper 81 is a bar shape having a square cross-sectional shape. The stopper 81 extends in the left-right direction. 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 FIG. 6) is provided below the plate 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.

  When the guide mechanism 39 is disposed at the lowest position and the stopper 81 moves to the upstream side, the stopper 81 is disposed at a position where it can contact the guide roller 30 from the downstream side (see FIG. 13). 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.

<Cutting unit 77, sensor 205>
As shown in FIG. 9, a guide rail 74 extending in the left-right direction is provided below the intersection position 105. 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. 6) moves the cutting portion 77 in the left-right direction along the guide rail 74.

  The sensor 205 (see FIG. 6) 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.

<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 and the plurality of holes 927 formed in the bent portion 912 are arranged in the left-right direction.

  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, a sensor 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 encoders 232 and 233. 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 encoder 233 outputs a number of pulse signals corresponding to the rotation of the motor 223. The CPU 201 is electrically connected to the flash ROM 202, RAM 203, sensor 205, operation unit 206, display unit 207, solenoid 16C, heater 861A, drive units 211 to 217, and encoders 232 and 233. Drive units 211 to 217 are electrically connected to motors 221 to 227, respectively.

<Packaging processing>
With reference to FIGS. 7-16, the packaging process (refer FIG. 7) performed by CPU201 of the packaging apparatus 1 is demonstrated. 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. 9 to 11 and FIGS. 13 to 15 are sectional views taken along line AA in FIG.

  As shown in FIG. 7, the CPU 201 initializes the state of the packaging device 1 (S1). Specifically, it is as follows. The CPU 201 arranges the guide mechanism 39 at the top (see FIG. 9). The CPU 201 rotates the belts 511 and 512 (see FIG. 9) of the transport mechanism 50 until the sensor 205 (see FIG. 6) detects the reflecting plate, and the transport unit from the receiving surface 12A (see FIG. 3) of the cradle 12. 60 is projected upward (see FIG. 9). The CPU 201 lowers the heating mechanism 86 and places it at the separation position. Each heater 861A (see FIG. 5) of the five heating units 861 (see FIG. 5) is separated downward from the conveyance path 103 (see FIG. 9). The second plate-like portion 872 of the peeling member 87 covers the top of the five heating units 861. The CPU 201 moves the stopper 81 downstream (see FIG. 9). The CPU 201 swings the pair of holding members 78 so that the holding roller 72 is separated downward from the base guide roller 71.

  The user pulls the film 24 downward from the film roll 22 and arranges 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 transport path 103 (see FIG. 9) and downstream of the pedestal guide roller 71 (see FIG. 9). The user places the pedestal 2 on the cradle 12 (see FIG. 9). 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. 9). 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 swings the pair of holding members 78 to bring the holding roller 72 close to the downstream side of the pedestal guide roller 71 (see FIG. 9). 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 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 so that the rotational driving force is transmitted to the roller 654A (see FIG. 2). The CPU 201 rotates the motor 227 and forcibly feeds the film 24 from the film roll 22 by the roller 654A (see FIG. 2) (S7). The film 24 is loosened.

  The CPU 201 rotates the motor 222 in the forward direction, and rotates the belts 511 and 512 in the forward direction (the direction of the arrow 181 in FIG. 9). The transport unit 60 transports the base 2 from the upstream side to the downstream side along the transport path 103 (S9). The downstream end (side 901) of the first plate-like portion 905 of the base 2 contacts the film 24, and then passes over the holding roller 72 (arrow 182 in FIG. 10). 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. 10). 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, from the output signal from the encoder 232, whether or not the side 901 of the first plate-like portion 905 of the base 2 has moved downstream by a predetermined distance with respect to the upper position of the five heating units 861. Judgment is made based on the number of rotations of the motor 222. 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 from the upper position of the five heating units 861, the CPU 201 stops driving the motor 222 and stops the pedestal 2. The downstream conveyance is stopped (S11).

  CPU201 drives motor 223 and raises heating mechanism 86 (S13). After the heating mechanism 86 is placed at the close position, the CPU 201 stops driving the motor 223 and stops the heating mechanism 86 from rising. As shown in FIG. 10, when the heating mechanism 86 rises to the close position (arrow 183), the upper side of the five heating units 861 sandwiches the film 24 between the lower surface of the first plate-like portion 905 of the base 2. It becomes a state. As shown in FIG. 7, 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 welded 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. The CPU 201 drives the motor 223 to lower the heating mechanism 86 (S19, arrow 184 (see FIG. 11)). The upper sides of the five heating units 861 are separated from the conveyance path 103. The CPU 201 determines whether or not the heating mechanism 86 has moved to the separation position based on the rotation speed of the motor 223 specified from the output signal from the encoder 232 (S20). When the CPU 201 determines that the heating mechanism 86 has not moved to the separation position (S20: NO), the CPU 201 returns the process to S19. In this case, the heating mechanism 86 is in a state of being disposed at any position between the proximity position and the separation position. CPU201 drives motor 223 continuously (S19). When the CPU 201 determines that the heating mechanism 86 has moved to the separation position (S20: YES), the CPU 201 stops driving the motor 223 and stops the lowering of the heating mechanism 86.

  Referring to FIG. 12, the operation of the peeling member 87 and the moving mechanism 88 when the heating mechanism 86 moves up and down between the separation position and the proximity position by the processes of S13, S15, S19, and S20 (see FIG. 7). explain. A region through which the heater 861A passes when the heating mechanism 86 moves up and down between the separation position and the proximity position is referred to as a “passing region 861B”. Before execution of the process of S13, a part of the second plate-like portion 872 of the peeling member 87 is in the passage area 861B above the heater 861A of each of the five heating units 861 of the heating mechanism 86 arranged at the separation position. Be placed. The second plate-shaped portion 872 covers the heater 861A from above (a).

  When the process of S13 is performed and the heating mechanism 86 moves from the separation position toward the proximity position, the second connecting portion 88B of the movement mechanism 88 also moves upward. As the second connecting portion 88B moves upward, the moving mechanism 88 rotates the peeling member 87 connected by the first connecting portion 88A clockwise in the right side view with the end portion 871A as a fulcrum (b). ). The peeling member 87 is rotated, so that a part of the second plate-like portion 872 is arranged in the passage region 861B, and the second plate-like portion 872 is arranged upstream of the passage region 861B. Change to. The upper part of each of the five heating units 861 is not covered by the second plate-shaped portion 872. The second plate-like portion 872 does not hinder the upward movement of the heating mechanism 86.

  When the heating mechanism 86 is disposed at the close position (c), the moving mechanism 88 extends substantially horizontally toward the upstream side from the second connecting portion 88B toward the first connecting portion 88A. The heater 861 </ b> A of the five heating units 861 sandwiches the film 24 between the lower surface of the first plate-like portion 905 of the base 2 and the vicinity of the side 901. In this state, by performing the process of S15, the heater 861A is heated, and the film 24 is melted and welded to the base 2.

  When the process of S19 is performed and the heating mechanism 86 moves from the proximity position toward the separation position, the second connecting portion 88B of the movement mechanism 88 also moves downward. As the second connecting portion 88B moves downward, the moving mechanism 88 rotates the peeling member 87 connected by the first connecting portion 88A counterclockwise in the right side view with the end portion 871A as a fulcrum ( d, e). As the peeling member 87 rotates, the end portion 872A of the second plate-shaped portion 872 enters the conveyance path 103 side from the heater 861A in the passage region 861B from the upstream side of the passage region 861B. Then, the end portion 872A of the second plate-shaped portion 872 moves from the upstream side to the downstream side from the heater 861A in the passage region 861B (f).

  In addition, each of the four third plate-like portions 873 enters between the five pressing members 860, the five heating units 861, and the five holding members 862 from the upstream side. Each first position 874A of the four third plate-like portions 873 moves along the same locus as the end portion 872A of the second plate-like portion 872 in a side view. On the other hand, each of the second positions 874B of the four third plate-like portions 873 has a side opposite to the conveyance path 103 with respect to the heater 861A in the passage area 861B from the upstream side to the downstream side in a side view. Moving. For this reason, with the rotation of the peeling member 87, the respective end portions 874 of the four third plate-like portions 873 move from the upstream side to the downstream side while crossing the heater 861A in a side view.

  When the film 24 is melted in response to the heating of the heater 861A, the melted film 24 may not adhere to the pedestal 2 and adhere to the heater 861A (d). On the other hand, the end portions 874 of the four third plate-like portions 873 of the peeling member 87 intersect the heater 861A in a side view in accordance with the movement of the heating mechanism 86 from the proximity position to the separation position. It moves from the upstream side to the downstream side (d, e). The end portions 874 of the four third plate-like portions 873 peel off the film 24 adhered to the heater 861A in order from the tip portion on the upstream side. For this reason, when the heating mechanism 86 moves to the separation position, the film 24 welded to the heater 861A is completely peeled off from the heater 861A (f).

  As shown in FIG. 7, the CPU 201 drives the motor 226 to swing the pair of holding members 78 (S21). As shown in FIG. 11, the pair of holding members 78 swings in the direction of the arrow 185, whereby the holding roller 72 is separated downward from the pedestal guide roller 71, and the leading end of the film 24 is released. As shown in FIG. 7, the CPU 201 rotates the motor 222 in the forward direction so that the belts 511 and 512 rotate in the forward direction, and conveys the base 2 to the downstream side (S23).

  As shown in FIG. 11, the leading end of the film 24 is moved to the downstream side along with the movement of the pedestal 2 while being welded to the lower surface of the pedestal 2 (arrow 186). 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. A 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 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. 7, the CPU 201 stops the driving of the motor 222 and stops the conveyance of the base 2 (S26). The CPU 201 drives 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 above, and guide the film 24 downward along the movement path 104 (see arrow 187 and FIG. 13). The film 24 is pressed against the base 2 and the article 3 from above. As illustrated in FIG. 13, 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.

  The CPU 201 drives the solenoid 16C so that the rotational driving force is transmitted to the connecting gear 651 (see FIG. 2). The CPU 201 rotates the motor 227 (S29). The film 24 is wound on a film roll 22. 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. 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 (see arrow 188, FIG. 13).

  As shown in FIG. 8, the CPU 201 starts the winding of the film 24 around the film roll 22 by the process of S29 based on the rotation speed of the motor 223 specified from the output signal from the encoder 233. The number of rotations of 22 is specified every first predetermined time (for example, 1 s). CPU201 judges whether the number of rotations of film roll 22 for every 1st predetermined time is constant regardless of progress of time (S32). When the number of rotations of the film roll 22 at the first predetermined time when the film 24 is wound is constant regardless of the passage of time, the film 24 is not tensioned. In this case, as shown in FIG. 12, there is a possibility that the film 24 has already been peeled off from the heater 861 </ b> A by the peeling member 87 at the start of winding of the film 24. When the number of rotations of the film roll 22 for each first predetermined time is constant regardless of the passage of time (S32: YES), the CPU 201 peels off the film 24 from the pedestal 2, and the peeling member 87 causes the film 24 to be heated. A screen for notifying that there is a possibility of peeling from 861A is displayed on the display unit 207 (S321). The CPU 201 ends the packaging process.

  On the other hand, when the number of rotations of the film roll 22 for each first predetermined time decreases with the passage of time (S32: NO), the tension is generated in the film 24, and the film 24 is wound up. It is determined that the film 24 is welded to the pedestal 2 at the start. Next, the CPU 201 starts winding of the film 24 onto the film roll 22 by the process of S29 based on the rotation speed of the motor 223 specified from the output signal from the encoder 233 (for example, within a second predetermined time (for example, The number of rotations of the film roll 22 in 5s) is specified. The CPU 201 determines whether the rotation speed within the specified second predetermined time is equal to or less than a predetermined threshold (S33). When the specified number of rotations within the second predetermined time is equal to or smaller than a predetermined threshold value, the amount of film 24 fed out is equal to or smaller than the predetermined amount. In this case, an amount of the film 24 corresponding to the movement of the base 2 is not fed out. In this case, there is a possibility that the film 24 has been peeled off from the base 2 due to the tension applied in accordance with the winding of the film 24. When the CPU 201 determines that the number of rotations of the film roll 22 within the second predetermined time is equal to or less than the predetermined threshold (S33: YES), the film 24 may be peeled off from the base 2 by winding the film 24 around the film roll 22. A screen for notifying that there is a possibility is displayed on the display unit 207 (S322). The CPU 201 ends the packaging process.

  On the other hand, if the CPU 201 determines that the number of rotations of the film roll 22 within the second predetermined time is greater than the predetermined threshold (S33: NO), the motor 222 is continuously rotated to move the base 2 to the upstream side. Let The side 902 of the first plate-like portion 905 of the pedestal 2 contacts the film 24 and pushes it upstream. 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. 16 and 17) between the first extending portion 342B and the second extending 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.

  The CPU 201 determines from the output signal from the encoder 232 whether the side 902 of the first plate-like portion 905 of the base 2 has moved upstream by a predetermined distance from the upper position of the five heating units 861. Judgment based on the number of rotations 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 (S34).

  The CPU 201 drives the motor 224 to move the stopper 81 of the rotation suppression mechanism 80 to the upstream side (S35). As shown in FIG. 13, the guide roller 30 that has moved to the lowest position is disposed on the upstream side of the stopper 81 of the rotation suppression mechanism 80. When the stopper 81 moves upstream (arrow 189), the film 24 wound around the guide roller 30 is sandwiched between the stopper 81 and the guide roller 30 and cannot move. As shown in FIG. 8, the CPU 201 stops the rotation of the motor 227 and stops the winding of the film 24 onto the film roll 22 (S37).

  The CPU 201 drives the motor 225 to move the cutting unit 77 from the left side to the right side (S39). When the cutting part 77 moves to the right side, the blade part 771 cuts the film 24. A portion of the film 24 that covers the first plate-like portion 905 and the article 3 of the base 2 is cut off from the film roll 22 side. After the film 24 is cut, the cut end of the film 24 extending from the film roll 22 hangs down on the lower side of the pedestal guide roller 71. The CPU 201 drives the motor 226 to swing the pair of holding members 78 (S41). As shown in FIG. 14, the pair of holding members 78 swings in the direction of the arrow 190. 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. 8, the CPU 201 drives the motor 223 to raise the heating mechanism 86 (S43). After the heating mechanism 86 is placed in the proximity position, the CPU 201 stops driving the motor 223 and stops the heating mechanism 86 from rising. With the heating mechanism 86 raised to the proximity position (arrow 191), each heater 861A of the five heating units 861 approaches the transport path 103 from below. The heater 861A sandwiches the film 24 between the base 2 and the heater 861A. 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 welded in 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. CPU201 stops heating of heater 861A.

  The CPU 201 drives the motor 223 to lower the heating mechanism 86 (S51, arrow 192 (see FIG. 15)). Each heater 861 </ b> A of the five heating units 861 is separated from the conveyance path 103. The CPU 201 determines whether or not the heating mechanism 86 has moved to the separation position based on the rotation speed of the motor 223 specified from the output signal from the encoder 233 (S52). CPU201 returns processing to S51, when it judges that heating mechanism 86 has not moved to a separation position (S52: NO). In this case, the heating mechanism 86 is in a state of being disposed at any position between the proximity position and the separation position. CPU201 drives motor 223 continuously (S51). When it is determined that the heating mechanism 86 has moved to the separation position (S52: YES), the CPU 201 stops the rotation of the motor 223 and stops the lowering of the heating mechanism 86.

  As shown in FIG. 16, the operation of the peeling member 87 and the moving mechanism 88 when the heating mechanism 86 moves up and down between the separation position and the proximity position by the processing of S43, S49, and S51 (see FIG. 8) (g ) To (l) are the same as those in FIG. When the heating mechanism 86 is disposed in the proximity position (i), the heater 861A of the five heating units 861 sandwiches the film 24 between the lower surface of the first plate-like portion 905 of the base 2 and the vicinity of the side 902. In this state, when the process of S49 is executed, the heater 861A is heated, and the film 24 is melted and welded to the base 2.

  When the film 24 is melted in response to the heating of the heater 861A, the melted film 24 may not be welded to the base 2 but may be welded to the heater 861A (j). On the other hand, the end portion 872A of the second plate-shaped portion 872 of the peeling member 87 has a conveyance path 103 that is more than the heater 861A in the passage region 861B in response to the heating mechanism 86 moving from the proximity position to the separation position. The side is moved from the upstream side toward the downstream side (k). The end portion 872A of the second plate-shaped portion 872 is in contact with the portion of the film 24 between the welded portion with the heater 861A and the contact portion between the side 902 of the base 2 and applies a force to the downstream side. As a result, the end portion 872A of the second plate-shaped portion 872 peels off the film 24 welded to the heater 861A in order from the upstream side. For this reason, when the heating mechanism 86 moves to the separation position, the film 24 adhered to the heater 861A is completely peeled off from the heater 861A (l).

  As shown in FIG. 8, the CPU 201 drives the motor 224 to move the stopper 81 of the rotation suppression mechanism 80 to the downstream side (S53, arrow 193 (see FIG. 15)). The stopper 81 moves downstream and is separated from the guide roller 30. 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 194 (see FIG. 15)). The pedestal 2 and the article 3 that have been packaged are conveyed downstream. The CPU 201 ends the packaging process.

<Main effects of the above embodiment>
As described above, the CPU 201 of the packaging apparatus 1 moves the heating mechanism 86 to the close position, and heats the heater 861A with the film 24 sandwiched between the pedestal 2 and the heater 861A. The film 24 is melted and welded to the base 2. The CPU 201 wraps the base 2 and the article 3 with the film 24 by welding the film 24 to the base 2 with the heater 861 </ b> A while transporting the base 2 with the transport mechanism 50. The moving mechanism 88 rotates the peeling member 87 in response to the heating mechanism 86 moving from the proximity position to the separation position. At this time, the end portion 872A of the second plate-like portion 872 of the peeling member 87 passes through the passage region 861B in the transport direction.

  In the above, for example, the film 24 may adhere to the heater 861A side when the heater 861A is heated. Here, since the end portion 872A of the second plate-shaped portion 872 of the peeling member 87 passes through the passage region 861B according to the movement of the heating mechanism 86, the film 24 welded to the heater 861A can be peeled off from the heater 861A. Since the moving mechanism 88 forcibly rotates the peeling member 87 according to the movement of the heating mechanism 86, the film 24 is appropriately peeled from the heater 861 </ b> A by the peeling member 87. For this reason, the operator does not have to perform a return operation of peeling the film 24 from the heater 861A when the film 24 is bonded to the heater 861A. Therefore, even when the film 24 adheres to the heater 861A, the CPU 201 can return to a state in which the operator can perform the next packaging process without performing the return operation.

  Further, as the peeling member 87 rotates, the respective end portions 874 of the four third plate-like portions 873 move from the upstream side to the downstream side while intersecting the heater 861A in a side view. The end portion 872A of the second plate-shaped portion 872 and the portion corresponding to the first position 874A of the end portion 874 are in contact with the side close to the transport path 103 in the film 24 extending through the passage region 861B, and in the transport direction. A force is applied along the downstream side. Further, a portion of the end portion 874 corresponding to the second position 874B is in contact with the side close to the heater 861A of the film 24 extending through the passage region 861B, and applies a force downstream along the transport direction. In these cases, the packaging apparatus 1 can peel the film 24 adhered to the heater 861A from both sides of the heater 861A side and the conveyance path 103 side.

  In a state where the heating mechanism 86 is disposed at the separation position, a part of the second plate-shaped portion 872 of the peeling member 87 is disposed in the passage region 861B above the heater 861A of each of the five heating units 861, and the heater 861A is covered from above. In this case, the operator can be prevented from touching the heater 861A. For this reason, the peeling member 87 can prevent the heater 861A from failing when the worker touches the heater 861A.

  The moving mechanism 88 can transmit the force by which the heating mechanism 86 moves up and down to the peeling member 87 to rotate the peeling member 87. In this case, the moving mechanism 88 can easily rotate the peeling member 87 according to the movement of the heating mechanism 86 with a simple configuration.

  The CPU 201 stops the conveyance of the pedestal 2 (S11, S26), places the heating mechanism 86 in the proximity position (S13, S43), heats the heater 861A, and welds the film 24 to the pedestal 2 (S15). , S49). Thereafter, after determining that the heating mechanism 86 has moved to the separation position (S20: YES, S52: YES), the CPU 201 restarts the conveyance of the base 2 (S23, S55). In this case, it is possible to prevent the transport of the base 2 by the transport mechanism 50 from being resumed while the film 24 is being heated by the heater 861A. For this reason, the CPU 201 can appropriately package the base 2 and the article 3 with the film 24.

  When the film 24 is welded to the heater 861A in response to the heating of the heater 861A, the film 24 may prevent the heating mechanism 86 from moving from the close position to the separated position. When the movement of the heating mechanism 86 to the separation position is hindered, the conveyance of the base 2 by the conveyance mechanism 50 is not resumed, and the packaging process may be interrupted. On the other hand, the CPU 201 can appropriately peel the film 24 from the heater 861A by the peeling member 87. Accordingly, since the CPU 201 can appropriately move the heating mechanism 86 to the separation position, it is possible to prevent the packaging process from being interrupted without the carriage of the base 2 being resumed.

  When the film 24 is welded to the heater 861A in response to the heating of the heater 861A, the film 24 is peeled off from the pedestal 2 in accordance with the heating mechanism 86 being moved from the proximity position to the separation position by the process of S27. In this case, when the pedestal 2 is subsequently transported by the transport mechanism 50 (S31), the feeding amount of the film 24 is constant regardless of the passage of time. Therefore, when the conveyance mechanism 50 is conveying the base 2, the CPU 201 determines that the rotation of the film roll 22 for each first predetermined time is constant regardless of the passage of time (S32: YES), the film 24 is heated. It is determined that there is a possibility that the film 24 has been peeled off from the heater 861A by the peeling member 87, and is displayed on the display unit 126 to notify the operator (S321). In this case, the operator can recognize that the film 24 may be peeled off from the base 2 and the film 24 may be peeled off from the heater 861A by the peeling member 87.

  On the other hand, the film 24 may be peeled off from the base 2 due to the tension generated by winding the film 24 around the film roll 22. In this case, the feeding amount of the film 24 when the pedestal 2 is conveyed by the conveying mechanism 50 (S31) is smaller than the feeding amount of the film 24 when the film 24 is not peeled off from the pedestal 2. Therefore, the CPU 201 takes up the film 24 when the number of rotations of the film roll 22 within the second predetermined time is equal to or less than a predetermined threshold value when the transport mechanism 50 is transporting the base 2 (S33: YES). Accordingly, it is determined that there is a possibility that the film 24 has been peeled off from the pedestal 2 due to the generated tension, and the display unit 126 is displayed to notify the operator (S322). In this case, the operator can recognize that the film 24 may have been peeled off from the base 2 due to the tension generated in the film 24.

  The CPU 201 starts winding the film 24 onto the film roll 22 (S29), starts transporting the pedestal 2 to the upstream side (S31), and then starts winding the film 24 onto the film roll 22. Is detected (S32, S33). In addition, when the film 24 is drawn | fed out from the film roll 22 (S7), it cannot be specified from the rotation speed of the film roll 22 whether the film 24 peeled from the base 2. For this reason, the CPU 201 specifies that the film roll 22 has been peeled from the base 2 by specifying the number of rotations of the film roll 22 in a state where the film 24 is being wound around the film roll 22 and comparing it with a predetermined threshold value. The number of rotations of the roll 22 can be appropriately specified.

<Modification>
In addition, this invention is not limited to the said embodiment, A various change is possible. In the above embodiment, the peeling member 87 is disposed on the upstream side with respect to the heating mechanism 86. On the other hand, the peeling member 87 may be disposed on the downstream side with respect to the heating mechanism 86. When the heating mechanism 86 moves from the separation position to the proximity position, the peeling member 87 may rotate counterclockwise as viewed from the right side with the end portion 871A as a fulcrum.

  In the above embodiment, the shapes of the four third plate-like portions 873 can be changed. For example, the four third plate-like portions 873 may be rod-like members extending in the vertical direction with respect to the second plate-like portion 872 from the end portion 872A of the second plate-like portion 872. The number of the four third plate-like portions 873 is not limited to four, and may be any one of 1-3, 5 or more. In addition, the four third plate-like portions 873 may not be provided on the peeling member 87.

  In the said embodiment, the shape of the 2nd plate-shaped part 872 can be changed. For example, the second plate-like portion 872 may be a rod-like member extending in the left-right direction along the end portion 872A.

  In the above-described embodiment, the peeling member 87 rotates around the end portion 871A as the second connecting portion 88B of the moving mechanism 88 moves up and down according to the up and down movement of the heating mechanism 86. On the other hand, the packaging device 1 may rotate the peeling member 87 by a crank (not shown). Specifically, the second connecting portion 88B of the moving mechanism 88 may be connected to the crank, and the crank may be rotated in conjunction with the vertical movement of the heating mechanism 86. Accordingly, the peeling member 87 may be rotated in conjunction with the vertical movement of the heating mechanism 86.

  In the above embodiment, the CPU 201 does not have to execute the process of S20. That is, the CPU 201 outputs a predetermined number of pulses from the drive unit 213 so that the motor 223 rotates by the number of rotations necessary to move the heating mechanism 86 to the separation position, and then executes the process of S21. May be. Similarly, the CPU 201 does not have to execute the process of S51. That is, the CPU 201 may output a predetermined number of pulses from the drive unit 213, and then execute the process of S53.

  In the said embodiment, the packaging apparatus 1 may be provided with the sensor which can detect the moving amount | distance of the film 24 drawn | fed out from the film roll 22. FIG. When executing the process of S32, the CPU 201 may determine whether the movement amount of the film 24 detected by the sensor is constant regardless of the passage of time. When the detected movement amount of the film 24 is constant regardless of the passage of time (S32: YES), the CPU 201 peels off the film 24 from the base 2 and peels off the film 24 from the heater 861A by the peeling member 87. A screen for notifying that there is a possibility of being displayed may be displayed on the display unit 207 (S321). Similarly, the CPU 201 may determine whether the detected movement amount of the film within a predetermined time is equal to or less than a predetermined threshold value. When the detected amount of movement of the film 24 within a predetermined time is equal to or less than the predetermined threshold (S33: YES), the CPU 201 may have peeled the film 24 from the base 2 due to the tension generated in the film 24. A screen for notifying this may be displayed on the display unit 207.

  In the above embodiment, the CPU 201 determines the number of rotations of the film roll 22 before stopping the conveyance to the upstream side of the pedestal 2 by the process of S34 (S32, S33). On the other hand, after stopping the conveyance to the upstream side of the base 2 by the process of S34, the CPU 201 starts the winding of the film 24 onto the film roll 22 by the process of S29 (S29), and then performs the conveyance. You may judge the rotation speed of the film roll 22 until it complete | finishes (S34).

  In the above-described embodiment, the packaging device 1 may include a sensor that can detect whether or not the film 24 is welded to the heater 861A. For example, this sensor may be an optical sensor provided in the vicinity of the heater 861A. When executing the process of S32, when the film 24 is detected by the optical sensor, the CPU 201 determines that the film 24 is welded to the heater 861A (S32: YES), and may make a notification (S321). When the film 24 is detected by the optical sensor after the processing of S51, the CPU 201 may determine that the film 24 has been welded to the heater 861A and perform notification.

  In the above-described embodiment, the CPU 201 does not have to execute the process of S <b> 7 and does not feed the film 24 from the film roll 22. Further, the CPU 201 does not have to execute the process of S29 and does not have to wind the film 24 around the film roll 22.

<Others>
The heating mechanism 86 is an example of the “heating member” in the present invention. The encoder 233 is an example of the “detection unit” in the present invention. The CPU 201 that performs the processes of S321 and S322 is an example of the “notification unit” in the present invention. The CPU 201 that performs the process of S321 is an example of the “first notification unit” in the present invention. The CPU 201 that performs the process of S322 is an example of the “second notification unit” in the present invention.

1: Packaging device 2: Pedestal 3: Article 22: Film roll 24: Film 50: Conveying mechanism 86: Heating mechanism 87: Peeling member 88: Moving mechanism 88A: First connecting portion 88B: Second connecting portion 103: Conveying path 201 : CPU
233: Encoder 861: Heating unit 861A: Heater 861B: Passage area 871: First plate-like portion 872: Second plate-like portion 872A: End portion 873: Third plate-like portion 874: End portion 874A: First position 874B: Second position

Claims (8)

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 member having at least a heater, a separation position where a distance between the transport path through which the pedestal transported by the transport mechanism passes and the heater is relatively large, and a proximity position where the distance is relatively small A heating member movable to
A peeling member for peeling the film from the heater;
A moving mechanism for moving the peeling member in response to the heating member moving from the proximity position to the separation position;
With
The peeling member is disposed outside a passage region through which the heater passes when the heating member moves between the proximity position and the separation position in a state where the heating member is disposed at the proximity position. ,
When the peeling member moves in response to the heating member moving from the proximity position to the separation position, at least a part of the peeling member intersects the passage region with the moving direction of the heating member. A packaging device that passes in a direction. The peeling member has an end portion extending between the first position and the second position;
When the peeling member moves in response to the heating member moving from the proximity position to the separation position,
The first position passes the transport path side with respect to the heater,
The packaging apparatus according to claim 1, wherein the second position passes through a side opposite to the conveyance path with respect to the heater.   The packaging device according to claim 1 or 2, wherein at least a part of the peeling member is disposed in the passage region in a state where the heating member is disposed at the separation position.   The packaging apparatus according to any one of claims 1 to 3, wherein the moving mechanism further includes a second connecting portion that connects to the heating member. The transport mechanism is
Transporting the pedestal in a state where the heating member is disposed at the separation position;
The packaging device according to any one of claims 1 to 4, wherein the pedestal is not transported in a state where the heating member is disposed at any position closer to the proximity position than the separation position. A detection unit for detecting the number of rotations of the film roll on which the film is wound;
The packaging apparatus according to claim 1, further comprising a notification unit configured to notify when the rotation speed detected by the detection unit satisfies a predetermined condition. Rotating means for rotating the film roll in a winding direction in which the film is wound,
The notification means performs notification when the rotation speed detected by the detection unit satisfies a predetermined condition in a state where the film roll is rotated in the winding direction by the rotation means. The packaging device according to claim 6. The notification means includes
First notification means for performing notification when the number of revolutions detected by the detection unit every first predetermined time is constant regardless of the passage of time;
The packaging apparatus according to claim 6 or 7, further comprising: a second notification unit that performs notification when the number of rotations detected by the detection unit within a second predetermined time is equal to or less than a predetermined threshold value.

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