WO2015194212A1

WO2015194212A1 - Packaging device

Info

Publication number: WO2015194212A1
Application number: PCT/JP2015/055839
Authority: WO
Inventors: 鈴木　正孝
Original assignee: ブラザー工業株式会社
Priority date: 2014-06-19
Filing date: 2015-02-27
Publication date: 2015-12-23
Also published as: JP6213391B2; JP2016003054A

Abstract

In the present invention, a packaging device is provided with attachment/detachment parts (61-63), a conveyor belt (512), and a motor (222). The attachment/detachment parts are disposed on the conveyor belt along the direction of rotation of the conveyor belt. The conveyor belt can convey mounts attached to any of the attachment/detachment parts. The motor moves the attachment/detachment parts in sequence from a start position to an end position by rotating the conveyor belt. The start position is the position at which conveyance of the mounts is started. The end position is the position at which conveyance of the packaged mounts ends. The attachment/detachment parts are disposed so as to be separated from each other by a space equivalent to a prescribed length that is the length from the start position to the end position in the direction of rotation of the conveyor belt. The central processing unit (CPU) of the packaging device, if a packaged mount has not been detected by a mount discharge sensor (42) and a mount that has not yet been packaged is detected by a mount attachment sensor (41), allows the conveyor belt to be rotated by the motor.

Description

Packaging equipment

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

Packaging devices for packaging articles are known. For example, the packaging device disclosed in Patent Document 1 includes a conveyance roller, an urging roller, a mounting table, a film, and a cradle. The conveying roller and the urging roller are disposed to face each other in the vertical direction. The conveying roller and the urging roller can convey the pedestal placed on the placing table. The mounting table, the film, and the cradle are sequentially arranged from the upstream side in the transport direction of the pedestal. The pedestal on which the article is placed is placed on the placing table and is sandwiched between the conveying roller and the urging roller. The pedestal is conveyed from the mounting table to the receiving table by the rotation of the conveying roller and the urging roller. The pedestal and the article are covered from the upper side to the lower side by the film before being conveyed to the cradle. Thereby, the base and the article are packaged. The packaged pedestal can be removed from the cradle.

A packaging device having a conveyor belt instead of the conveyor roller and the urging roller is conceivable so that the articles to be input can be efficiently and sequentially packaged. On the outer surface of the conveyor belt, a plurality of detachable portions to which a pedestal can be attached are arranged at different positions along the rotation direction of the belt. The pedestal attached to any of the plurality of attaching / detaching portions is conveyed from the mounting table to the receiving table by the rotation of the conveying belt. The pedestal and items are packaged. When the pedestal is transported to the cradle, the subsequent pedestal mounted on the mounting table can be attached to another detachable portion. The packaging apparatus can sequentially package articles to be input.

JP 2013-233932 A

However, there is a possibility that the packaging apparatus transports the subsequent pedestal placed on the placing table before the article packaged together with the pedestal is taken out from the receiving table. In this case, there is a possibility that a problem such as an article falling on the cradle dropping from the packaging device may occur.

An object of the present invention is to provide a packaging device that can efficiently and continuously package articles that are sequentially inserted and that can reliably start the packaging operation of subsequent articles after the packaged articles are removed. It is.

The packaging device of the present invention is a packaging device provided with packaging means capable of packaging a pedestal and an article placed on the pedestal with a film, and can be placed on the pedestal before packaging. And first detection means capable of detecting the pedestal before being packaged placed on the mounting table, a first detachable part and a second detachable part to which the pedestal can be attached, and a rotatable A conveyor belt provided along the rotation direction, wherein the first detachable portion and the second detachable portion are placed on the mounting table, and the first detachable portion and the second detachable portion By transporting the transport belt capable of transporting the pedestal attached to any one and the transport belt, the transport of the pedestal before the first detachable portion and the second detachable portion are sequentially packaged is started. From the starting position, which is the position to be Drive means for moving to a finish position, which is a position where the transport of the packaged base is finished, via a packaging position, which is a packaging position, and the first detachable part or the second, which is in the finish position A second detection unit capable of detecting the packaged pedestal attached to the attachment / detachment unit; and a control unit configured to control rotation of the conveyance belt by the driving unit, the first attachment / detachment unit and the second attachment / detachment unit. The parts are arranged at a distance from each other by a predetermined length that is a length in the rotational direction from the start position to the end position, and the control means is configured so that the packaged pedestal is moved by the second detection means. When the pedestal before being packaged is not detected and detected by the first detection means, the drive means allows the conveyance belt to start rotating. To.

In the present invention, a first actuating member and a second actuating member disposed on the transport belt at a predetermined distance along the rotation direction and spaced from each other, the first actuating member and the second actuating member Is a third detection means capable of detecting whether or not any of the first attachment portion and the second attachment portion is provided at each of the start position and the end position. And a third detection means that is a position at which one of the first actuation member and the second actuation member reaches when the first actuation member and the second actuation member are reached, and the control means comprises the first actuation member and the second actuation member When the third detecting means detects that any one of the above is in the predetermined position, the rotation of the conveying belt by the driving means may be stopped.

In the present invention, it comprises a driving pulley that is rotated by the power of the driving means, and a driven pulley that is provided apart from the driving pulley, and the conveyor belt is stretched over the driving pulley and the driven pulley, The predetermined position may be a position in the vicinity of the driving pulley or the driven pulley.

In the present invention, the first operating member and the second operating member may be provided in the first attaching / detaching portion and the second attaching / detaching portion, respectively.

In the present invention, the first attaching / detaching portion and the second attaching / detaching portion are each fixed to the transport belt, extend along the rotation direction, and can support the pedestal, and the transport from the support portion. A penetrating portion extending in a direction away from the belt and penetrating through the pedestal supported by the supporting portion, and connected to the penetrating portion from the opposite side of the supporting portion, and a first direction parallel to the rotation direction and the An extending portion that extends from the penetrating portion in each of the second directions opposite to the first direction and is capable of supporting the pedestal through which the penetrating portion passes from the side opposite to the supporting portion, and the supporting portion includes: The extending portion extends from the penetrating portion in the first direction and the second direction, and each extending amount from the penetrating portion in the first direction and the second direction is the penetrating portion of the extending portion. Each extension from the first direction to the second direction It may be greater Ri.

It is a perspective view of the packaging apparatus 1 which mounted | wore with the housing | casing 800. FIG. It is a perspective view of the packaging apparatus 1 which removed the housing | casing 800. FIG. 3 is a perspective view of a transport mechanism 50. FIG. It is a perspective view of the attaching / detaching part 61. FIG. 3 is a perspective view of a movable roller 30. FIG. It is a right view of the packaging apparatus 1 by which the support part 34 was arrange | positioned at the highest position. It is a right view of the packaging apparatus 1 by which the support part 34 was arrange | positioned at the lowest position. 4 is a perspective view of a pedestal guide roller 71, a holding roller 72, and a heating unit 86. FIG. It is a perspective view of the periphery of the support part 34 arrange | positioned at the lowest. 2 is a block diagram showing an electrical configuration of the packaging device 1. FIG. It is a flowchart of a main process. It is a state transition diagram of packaging device 1 at the time of the main processing start. FIG. 13 is a state transition diagram of the packaging device 1 following FIG. 12. FIG. 14 is a state transition diagram of the packaging device 1 following FIG. 13. FIG. 15 is a state transition diagram of the packaging device 1 following FIG. 14. FIG. 16 is a state transition diagram of the packaging device 1 following FIG. 15. FIG. 17 is a state transition diagram of the packaging device 1 following FIG. 16. FIG. 18 is a state transition diagram of the packaging device 1 following FIG. 17. FIG. 19 is a state transition diagram of the packaging device 1 following FIG. 18. FIG. 20 is a state transition diagram of the packaging device 1 following FIG. 19. 3 is a right side view of the packaging device 11. FIG.

Hereinafter, embodiments of the present invention will be described. 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. Packaging the article 3 in this way is referred to as packaging 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. The left-right direction and the conveyance direction are each substantially parallel to the horizontal direction.

<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 a lower housing 803 and an upper housing 801. 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 is provided on the right side of the upstream surface of the lower housing 803. The operation unit 206 is a button that allows the user to perform an input operation on the packaging device 1. The upper housing 801 includes two standing portions 802A and a erection portion 802B. Each of the two standing portions 802A extends upward from both left and right end portions of the lower housing 803. 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.

One of the two standing portions 802A covers a side plate portion 111 (see FIG. 2) described later from the right side. The other of the two standing portions 802A covers the side plate portion 112 (see FIG. 2) from the left side. The erection part 802B covers a film roll 22 (see FIG. 2) described later from above. A space surrounded by the lower housing 803, the two standing portions 802A, and the erection portion 802B is 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 and downstream side surfaces of the housing 800.

<

Receivers

12, 13>
The cradle 12 extends horizontally from the upper end of the side surface on the upstream side of the lower housing 803 toward the upstream side. The cradle 13 extends horizontally 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 on which the article 3 is placed on the upper surface. The pedestal 2 on which the article 3 is placed is placed on the cradle 12 and then conveyed toward the opening 805. The cradle 13 receives the pedestal 2 and the article 3 whose packaging has been completed on the upper surface. The leg 121 supports the cradle 12 from below. The leg 131 supports the cradle 13 from below.

The upper surface of the cradle 12 is referred to as a receiving surface 12A, and the upper surface of the cradle 13 is referred to as a receiving surface 13A. The receiving surfaces 12A and 13A are each horizontal. The receiving surfaces 12A and 13A form substantially the same plane. A plane formed by the receiving

surfaces

12A and 13A is referred to as a conveyance path 103 (see FIG. 6 and the like).

As shown in FIG. 2, the packaging device 1 includes a bottom portion 10 and

side plate portions

111 and 112. The shape of the bottom part 10 is a substantially rectangular shape in plan view. The side plate portion 111 extends in the upward vertical direction from the right end portion of the bottom portion 10. The side plate portion 112 extends in the upward vertical direction from the left end portion of the bottom portion 10. The shape of the

side plate portions

111 and 112 is a substantially rectangular plate shape whose longitudinal direction is the vertical direction. The inner surfaces of the

side plate portions

111 and 112 face each other. The cradle 12 is supported by the upstream end portions of the

side plate portions

111 and 112. The cradle 13 is supported by the downstream end portions of the

side plate portions

111 and 112.

<Transport mechanism 50>
As shown in FIG. 3, a motor 222 is provided on the upstream side of the internal space of the cradle 13. The motor 222 can rotate the pulley 54 forward and backward about the left-right direction. The pulley 54 is provided on the upstream side of the internal space of the cradle 13. A pulley 56 is provided on the downstream side of the pulley 54. The pulley 56 is supported by a rotating shaft 58. The rotation shaft 58 extends in the left-right direction on the downstream side in the internal space of the cradle 13. The pulley 56 is arranged on the right side of the approximate center of the rotating shaft 58 in the left-right direction. An endless belt 57 is stretched around the outer peripheral surfaces of the

pulleys

54 and 56.

The right end of the rotating shaft 58 supports the pulley 52A. The pulley 52 A is disposed at the right end portion of the cradle 13. A pulley 52B is provided on the upstream side of the pulley 52A. The pulley 52B is supported by the rotation shaft 59. The rotating shaft 59 extends in the left-right direction on the upstream side in the internal space of the cradle 12. The pulley 52 B is disposed at the right end portion of the rotation shaft 59. Teeth are formed on the outer peripheral surfaces of the

pulleys

52A and 52B. The tooth portions of the

pulleys

52A and 52B extend continuously along the circumferential direction of the outer peripheral surfaces of the

pulleys

52A and 52B. An endless conveyance belt 511 is stretched around the outer peripheral surfaces of the

pulleys

52A and 52B. Teeth are formed on the inner surface of the conveyor belt 511. The teeth of the conveyor belt 511 extend continuously along the direction in which the conveyor belt 511 extends. The conveyor belt 511 is rotatably supported in a state where the tooth portion is engaged with the tooth portion of the

pulleys

52A and 52B.

The left end of the rotating shaft 58 supports the pulley 53A. The pulley 53 A is disposed at the left end portion of the cradle 13. A pulley 53B is provided on the upstream side of the pulley 53A. The pulley 53 B is supported by the left end portion of the rotation shaft 59. Teeth are formed on the outer peripheral surfaces of the

pulleys

53A and 53B. The tooth portions of the

pulleys

53A and 53B extend continuously along the circumferential direction of the outer peripheral surfaces of the

pulleys

53A and 53B. An endless conveyance belt 512 is stretched around the outer peripheral surfaces of the

pulleys

53A and 53B. A tooth portion is formed on the inner surface of the conveyor belt 512. The teeth of the conveyor belt 512 continuously extend along the extending direction of the conveyor belt 512. The conveyor belt 512 is rotatably supported in a state where the tooth portion is engaged with the tooth portion of the

pulleys

53A and 53B. Portions of the outer surfaces of the

conveyor belts

511 and 512 facing upward are exposed to the outside from the receiving

surfaces

12A and 13A and extend in the conveying direction.

The driving force of the motor 222 is transmitted through the pulley 54, the belt 57, the pulley 56, and the rotating shaft 58 in order to rotate the

pulleys

52A and 53A. As the

pulleys

52A and 53A rotate, the

conveyor belts

511 and 512 rotate. The

rotating conveyor belts

511 and 512 rotate the

pulleys

52B and 53B. That is, the

pulleys

52A and 53A are drive pulleys that rotate the

conveyor belts

511 and 512 as the motor 222 is driven, while the

pulleys

52B and 53B are driven pulleys that rotate in conjunction with the rotation of the

conveyor belts

511 and 512. It is.

At the outer side surfaces of the

conveyor belts

511 and 512, detachable portions 61 to 63 are fixed in order from the counterclockwise side to the clockwise side when viewed from the right side. The attaching / detaching portions 61 to 63 are arranged at predetermined equal intervals (hereinafter referred to as “predetermined intervals”) along the rotation direction of the

conveyor belts

511 and 512. The detachable portions 61 to 63 equally divide the outer surfaces of the

conveyor belts

511 and 512 into three along the rotation direction of the

conveyor belts

511 and 512. Each of the detachable portions 61 to 63 can be attached to the pedestal 2 and can convey the pedestal 2 downstream as the conveying

belts

511 and 512 rotate.

As the

conveyor belts

511 and 512 rotate counterclockwise when viewed from the right side, the attaching / detaching portions 61 to 63 can move in the order of the start position, the end position, and the retracted position, respectively. The start position is a position at which conveyance of the pedestal 2 placed on the receiving surface 12A is started. The end position is a position at which the conveyance of the base 2 ends. The end position is a position where the base 2 is placed on the receiving surface 13A. The retreat position is a position spaced from the start position clockwise in the right side view along the rotation direction of the

conveyor belts

511 and 512.

The start position, end position, and retreat position are separated at predetermined intervals along the rotation direction of the

conveyor belts

511 and 512. That is, when any one of the attaching / detaching parts 61 to 63 is in the start position, the other two attaching / detaching parts are respectively located in the end position or the retracted position. For example, when the detachable part 61 is located at the start position, the detachable part 62 is located at the retracted position, and the detachable part 63 is located at the end position (see FIGS. 3 and 12).

The detachable part 61 includes, as an example, a right detachable part 61A and a left detachable part 61B. The right attachment / detachment portion 61 A is provided on the conveyance belt 511, and the left attachment / detachment portion 61 B is provided on the conveyance belt 512. The right attachment / detachment portion 61A and the left attachment / detachment portion 61B have the same shape and face each other in the left-right direction.

Referring to FIG. 4, the configuration of the left side attaching / detaching part 61B among the right attaching / detaching part 61A and the left attaching / detaching part 61B will be described. The left side attaching / detaching portion 61B includes a pair of support portions 94, a penetrating portion 96, and an extending portion 98, respectively. The pair of support portions 94 are fixed to the outer surface of the conveyor belt 512 at positions aligned along the rotation direction of the conveyor belt 512. Each of the pair of support portions 94 has a substantially rectangular shape in a plan view in which the rotation direction of the transport belt 512 is the longitudinal direction. The length in the up-down direction of each of the pair of support portions 94 becomes shorter as they go away from each other. The through portion 96 is connected to each of the end portions on the side close to each other of the pair of support portions 94. The through portion 96 extends from the pair of support portions 94 to the outside of the conveyance belt 512. In other words, the pair of support portions 94 extend from the penetration portion 96 in each of the first direction and the second direction. The first direction is a direction parallel to the rotation direction of the conveyor belt 512 and is a direction toward the clockwise direction when viewed from the right side. The second direction is the opposite direction to the first direction. The penetrating portion 96 protrudes upward from the receiving surface 12A at the start position, and protrudes upward from the receiving surface 13A (see FIG. 2) at the end position.

The extending portion 98 is connected to the penetrating portion 96 from the side opposite to the pair of support portions 94. The extending portion 98 is a plate-like body that extends along the rotation direction of the conveyor belt 512. A central portion of the extending portion 98 in the rotation direction of the transport belt 512 is connected to the through portion 96. In other words, the extending portion 98 extends from the penetrating portion 96 in each of the first direction and the second direction. In the present embodiment, the amount of extension of the extending portion 98 extending from the penetrating portion 96 in each of the first direction and the second direction is equal as an example. Hereinafter, the extension amount of the extension portion 98 from the through portion 96 is simply referred to as “the extension amount of the extension portion 98”. The extending amount of the extending portion 98 is smaller than the extending amount from each through portion 96 of the pair of support portions 94.

The right attachment / detachment portion 61A includes a pair of support portions 94, a penetration portion 96, and an extension portion 98, similarly to the left attachment / detachment portion 61B. Detailed description is omitted to avoid duplication of explanation.

The configuration of the

detachable portions

62 and 63 is the same as the configuration of the detachable portion 61. That is, the detachable part 62 includes a right detachable part 62A and a left detachable part 62B, and the detachable part 63 includes a right detachable part 63A and a left detachable part 63B. The right attachment /

detachment portions

62A and 63A are provided on the conveyance belt 511, and the left attachment /

detachment portions

62B and 63B are provided on the conveyance belt 512. The right attachment / detachment portion 62A and the left attachment / detachment portion 62B face each other in the left-right direction. The right attachment / detachment portion 63A and the left attachment / detachment portion 63B face each other in the left-right direction.

The right

detachable portions

62A and 63A and the left

detachable portions

62B and 63B each have the same shape as the right detachable portion 61A. That is, the right

detachable portions

62A and 63A and the left

detachable portions

62B and 63B each include a pair of support portions 94, a penetrating portion 96, and an extending portion 98.

As shown in FIG. 3, operating members 91 to 93 are fixed to the outer surface of the conveyor belt 512. The operating members 91 to 93 are separate from the attaching / detaching portions 61 to 63. The shape of the operating members 91 to 93 is a substantially rectangular parallelepiped shape. The operating members 91 to 93 are arranged in order from the counterclockwise side to the clockwise side in the right side view along the rotation direction of the transport belt 512. In the rotation direction of the conveyor belt 512, the operating member 91 is disposed counterclockwise with respect to the attaching / detaching portion 63 as viewed from the right side. Similarly, the operating member 92 is disposed on the counterclockwise side with respect to the attaching / detaching portion 61, and the operating member 93 is disposed on the counterclockwise side with respect to the attaching / detaching portion 62.

The operating members 91 to 93 are arranged at a predetermined interval, similarly to the attaching / detaching portions 61 to 63. Accordingly, each time the attachment / detachment portions 61 to 63 sequentially reach the start position as the

conveyor belts

511 and 512 rotate, the actuating members 91 to 93 sequentially reach the detection position. The detection position is a position between the lower end portion of the pulley 53A and the lower end portion of the pulley 53B, and is a position in the vicinity of the pulley 53A. Since the detection position is in the vicinity of the pulley 53A, even if the portion of the conveyor belt 512 between the lower end of the pulley 53A and the lower end of the pulley 53B swings up and down with the

pulleys

53A and 53B as fulcrums, the detection position The swinging amount of the operating members 91 to 93 is small.

The motor 222, the

pulleys

54, 56, 52A, 52B, 53A, 53B, the belt 57, the rotating

shafts

58, 59, the

conveyor belts

511, 512, the attaching / detaching portions 61 to 63, and the operating members 91 to 93 described above are generically named. This is referred to as a transport mechanism 50.

<Pedestal mounting sensor 41, pedestal discharge sensor 42, operation detection sensor 43>
As shown in FIG.2 and FIG.3, the packaging apparatus 1 is provided with the base mounting sensor 41, the base discharge sensor 42, and the operation | movement detection sensor 43 (refer FIG. 12). The pedestal mounting sensor 41 is a contact-type sensor provided in a downstream portion of the cradle 12 and can detect an object (for example, the pedestal 2) placed on the receiving surface 12A. The pedestal discharge sensor 42 is a contact-type sensor provided in a downstream portion of the cradle 13 and can detect an object placed on the receiving surface 13A. The operation detection sensor 43 (see FIG. 12) is a non-contact sensor (reflection sensor) provided in the internal space of the cradle 13 and below the conveyor belt 512. The operation detection sensor 43 can detect the operation members 91 to 93 at the detection positions.

<Film roll 22>
As shown in FIG. 2, the film roll 22 around which the film 24 (see FIG. 1) is wound is mounted on the packaging device 1. More specifically, the film roll 22 is rotatably supported between the upper end portions of the

side plate portions

111 and 112. The motor 227 (see FIG. 10) rotates the film roll 22 via the transmission mechanism 65. The film 24 fed out from the rotating film roll 22 is discharged downward in the internal space of the housing 800. The pedestal 2 on which the article 3 is placed passes through the internal space of the housing 800 from the receiving surface 12A and is conveyed to the receiving surface 13A, and is wrapped by the film 24.

<Movable roller 30>
A carriage 349 that is driven by the rotation of the motor 221 is provided on the right side surface of the side plate portion 111. The carriage 349 is connected to a support portion 341 (see FIG. 5). A carriage 350 is provided on the left side surface of the side plate portion 111. The carriage 350 is connected to a support portion 342 (see FIG. 5).

As shown in FIG. 5, the

support portions

341 and 342 are collectively referred to as the support portion 34. The support part 34 is a substantially inverted L-shaped plate member as viewed from the right side. The guide roller 31, the first auxiliary roller 32, and the second auxiliary roller 33 are collectively referred to as a movable roller 30. The movable roller 30 is a cylindrical body extending in the left-right direction. The length in the left-right direction of the movable roller 30 is substantially the same as the length in the left-right direction of the cradles 12 and 13 (see FIG. 2). The support portion 34 rotatably supports the left and right end portions of the movable roller 30.

The guide roller 31 is supported at the downstream end portion of the support portion 34. The first auxiliary roller 32 is supported by the support portion 34 in the vicinity of the upstream side of the guide roller 31. The second auxiliary roller 33 is supported by the support portion 34 on the upstream side and the upper side of the first auxiliary roller 32. That is, the guide roller 31, the first auxiliary roller 32, and the second auxiliary roller 33 are arranged in order from the downstream side to the upstream side.

The motor 221 (see FIG. 2) can move the support portion 34 in the vertical direction via carriages 349 and 350 (see FIG. 2). FIG. 6 shows a state in which the support portion 34 is arranged at the uppermost position, which is the upper end portion of the movable range. In this state, a portion of the support portion 34 extending in the vertical direction is disposed in the vicinity of the upstream side of the film roll 22. A portion extending in the transport direction of the support portion 34 is disposed below the film roll 22. The movable roller 30 is disposed below the film roll 22. In FIG. 6, the casing 800, the bottom portion 10, and the

side plate portions

111 and 112 are not shown (the same applies to FIG. 7).

FIG. 7 shows a state in which the support portion 34 is disposed at the lowest position, which is the lower end portion of the movable range. In this state, a portion of the support portion 34 that extends in the transport direction is disposed below the transport path 103. A movement path of the guide roller 31 accompanying the movement of the support portion 34 is referred to as a movement path 104. When the guide roller 31 moves to the lowest position along the movement path 104, the guide roller 31 is disposed below the conveyance path 103. A position where the conveyance path 103 and the movement path 104 intersect is referred to as an intersection position 105.

<Cutting part 77>
As shown in FIGS. 6 to 8, a guide rail 74 extending in the left-right direction is provided below the intersection position 105. The guide rail 74 extends to the right side of the conveyance belt 511 and extends to the left side of the conveyance belt 512. The cutting part 77 is connected to the upstream side of the guide rail 74. The cutting portion 77 includes a blade portion 771 that protrudes upward and extends in the left-right direction. The cutting part 77 is movable along the guide rail 74. The carriage (not shown) is disposed on the downstream side of the guide rail 74 and is connected to the cutting portion 77. The carriage is driven by a motor 225 (see FIG. 10). The cutting unit 77 moves in the left-right direction along the guide rail 74 as the motor 225 is driven. The blade portion 771 can cut the film 24 in the width direction as the cutting portion 77 moves in the left-right direction. As shown in FIG. 7, when the support portion 34 is disposed at the lowest position, the guide roller 31 is disposed above the guide rail 74. At this time, the blade portion 771 is disposed between the guide roller 31 and the first auxiliary roller 32.

<Pedestal guide roller 71, holding roller 72, heating unit 86, rotation suppressing unit 80>
As shown in FIGS. 6 to 8, the pedestal guide roller 71 is provided on the upstream side of the space sandwiched between the side plate portions 111 and 112 (see FIG. 2) and below the conveyance path 103. The pedestal guide roller 71 extends in the left-right direction. The pedestal guide roller 71 contacts the conveyance path 103 from below. The pedestal guide roller 71 supports the pedestal 2 (see FIG. 1) transported from the upstream side to the downstream side along the transport path 103 from below between the

cradles

12 and 13, and from the cradle 12 to the cradle 13. Induce. As shown in FIG. 7, when the support portion 34 is disposed at the lowest position, the second auxiliary roller 33 is disposed near the upper portion of the pedestal guide roller 71.

The holding roller 72 is provided on the downstream side of the pedestal guide roller 71 and extends in the left-right direction. The left and right end portions of the holding roller 72 are rotatably supported by the holding portion 78. The holding portion 78 can swing around a shaft that is provided below the pedestal guide roller 71 and extends in the left-right direction. The holding portion 78 swings when the motor 226 (see FIG. 10) is driven. The holding portion 78 swings to bring the holding roller 72 close to the downstream side of the pedestal guide roller 71 (see FIG. 12) and the holding roller 72 separated downward from the pedestal guide roller 71 (FIG. 6). , See FIG. 7). 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 the lower side (see FIG. 12). 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.

8 and 9, the heating unit 86 is provided in the vicinity of the downstream side of the holding roller 72. The heating unit 86 includes three heating units at the upper end. Each heating unit includes a heater 871 on the upper surface. The heater 871 can heat the film 24 by contacting the film 24 from below. As the motor 223 (see FIG. 10) rotates, the heating unit 86 moves in the vertical direction. In a state where the heating unit 86 is disposed at the uppermost position, which is the upper end of the movable range (see FIG. 8), the upper surfaces of the three heating units are close to the transport path 103 (see FIGS. 6 and 7). In the state where the heating unit 86 is disposed at the lowest position, which is the lower end of the movable range (see FIGS. 6 and 7), the upper surfaces of the three heating units are separated downward from the transport path 103.

The rotation suppression unit 80 is provided on the downstream side of the heating unit 86. The rotation suppression unit 80 includes a cam 851, two support rods 82, and a stopper 81. The two support bars 82 extend in the transport direction. The stopper 81 is provided at the upstream end of each of the two support bars 82. The stopper 81 extends in the left-right direction. The shape of the stopper 81 is a bar shape having a square cross-sectional shape. The stopper 81 includes rubber on the upstream surface. The cam 851 is connected to a rotation shaft of a motor 224 (see FIG. 10) provided below the rotation suppressing unit 80. When the motor 224 rotates the cam 851, the two support rods 82 move in the transport direction. The stopper 81 moves in the transport direction in conjunction with the two support bars 82.

In FIG. 9, the support portion 34 is disposed at the lowest position, the pedestal guide roller 71 (see FIG. 7) and the holding roller 72 are close to each other, the heating portion 86 is disposed at the uppermost position, and the stopper 81 is disposed on the upstream side. Is done. The stopper 81 is disposed at a position where it can contact the guide roller 31. The rubber of the stopper 81 pushes the guide roller 31 upstream. Thereby, the rotation of the guide roller 31 is restricted. The heating unit 86 protrudes upward through the space between the first auxiliary roller 32 and the holding roller 72.

<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. An example of the base 2 is a cardboard board. The

bent portions

911 and 912 are arranged in the left-right direction. The

bent portions

911 and 912 extend in the transport direction. A portion sandwiched between the

bent portions

911 and 912 in the plate-like portion 90 is referred to as a plate-like portion 905. The base 2 has a plurality of holes 927. Each of the plurality of holes 927 penetrates the plate-like portion 90 in the vertical direction. The plurality of holes 927 are provided in each of the right side portion and the left side portion of the plate-like portion 90. The plurality of holes 927 formed on the right side portion of the plate-like portion 90 are aligned in the left-right direction with any of the plurality of holes 927 formed on the left side portion of the plate-like portion 90. In the pedestal 2 of this embodiment, three pairs of holes 927 arranged in the left-right direction are formed along the

bent portions

911 and 912. In the transport direction, the length of the hole 927 is longer than the penetrating portion 96 (see FIG. 4) and shorter than the extending portion 98 (see FIG. 4).

The detachable portions 61 to 63 (see FIG. 3) can be attached to the pair of holes 927 formed in the plate-like portion 905. For example, as shown in FIG. 1, when the user places the pedestal 2 on the cradle 12, the detachable unit 61 at the start position is inserted into a pair of holes 927 on the downstream side in the transport direction among the plurality of holes 927. (Refer to FIG. 12). More specifically, the user inserts the extending portion 98 and the penetrating portion 96 sequentially from below into each of the pair of holes 927 on the downstream side with the pedestal 2 tilted. The pedestal 2 is penetrated by the penetration part 96, supported from below by the support part 94, and supported from above by the extension part 98. Thereby, the base 2 is attached to the attaching / detaching portion 61. The detachable part 61 can transport the pedestal 2 downstream in the transport 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 pedestal mounting sensor 41, a pedestal discharge sensor 42, an operation detection sensor 43, an operation unit 206, a display unit 207, and a heater 871. The CPU 201 controls the entire packaging device 1. The CPU 201 executes various processes by executing programs stored in the flash ROM 202. The flash ROM 202 stores a program or the like of a later-described main process (see FIG. 11) executed by the CPU 201.

The packaging apparatus 1 includes drive units 211 to 217, motors 221 to 227, and

encoders

231, 232, and 237. The driving units 211 to 217 drive the motors 221 to 227 by outputting pulse signals to the motors 221 to 227, respectively. The

encoders

231, 232, and 237 output a number of pulse signals corresponding to the rotation of the

motors

221, 222, and 227, respectively. The CPU 201 is electrically connected to the flash ROM 202, RAM 203, pedestal mounting sensor 41, pedestal discharge sensor 42, operation detection sensor 43, operation unit 206, display unit 207, heater 871, driving units 211 to 217, and

encoders

231, 232, and 237. Connect. The driving units 211 to 217 are electrically connected to the motors 221 to 227, respectively.

<Main processing>
The main processing executed by the CPU 201 will be described with reference to FIGS. 12 to 20 are sectional views taken along the line AA in FIG. 2, and the casing 800, the bottom portion 10, and the

side plate portions

111 and 112 are not shown.

The main process is a process executed by the CPU 201 in order for the packaging device 1 to package the base 2 and the article 3. Before the main process is executed, the leading end of the film 24 is pulled out from the film roll 22 and is below the transport path 103 and downstream of the pedestal guide roller 71 (see FIG. 12).
Before the main process is executed, the packaging device 1 is in an initial state (see FIG. 12).
When the packaging device 1 is in the initial state, the support portion 34 is disposed at the uppermost position, the heating portion 86 is disposed at the lowermost position, the stopper 81 is disposed on the downstream side, the cutting portion 77 is disposed on the left side, and the holding roller 72 is disposed at a position close to the pedestal guide roller 71 from the downstream side. The leading end of the film 24 is sandwiched between the holding roller 72 and the pedestal guide roller 71 from both sides in the transport direction. The film 24 linearly extends in the vertical direction between the upstream side of the second auxiliary roller 33 and the portion sandwiched between the pedestal guide roller 71 and the holding roller 72 (see FIG. 12).

When the packaging device 1 is in the initial state, any of the attachment / detachment parts 61 to 63 is in the start position, and any of the operation members 91 to 93 is in the detection position. Hereinafter, the case where the attaching / detaching portion 61 is in the start position and the operating member 91 is in the detection position will be described as an example. The pedestal 2 placed on the cradle 12 by the user is positioned by being attached to the detachable part 61 at the start position. The article 3 is placed on the plate-like portion 905 of the base 2. When the user inputs an instruction to start the main process to the operation unit 206 (see FIG. 1), the CPU 201 reads and executes the program stored in the flash ROM 202. As a result, the CPU 201 starts main processing.

As shown in FIG. 11, the CPU 201 determines whether or not the pedestal mounting sensor 41 is ON (S11). When the pedestal mounting sensor 41 is OFF (S11: NO), the CPU 201 displays an error message on the display unit 207 (S13), and returns the process to S11. When the pedestal 2 is not placed on the cradle 12, the pedestal mounting sensor 41 is turned off. In this case, for example, the CPU 201 displays “Please set the mount” on the display unit 207 as an error message (not shown).

When the base mounting sensor 41 is ON (S11: YES), the CPU 201 advances the process to S15. When the user attaches the pedestal 2 on which the article 3 is placed to the detachable portion 61 and places the pedestal 12 on the cradle 12, the pedestal attachment sensor 41 is turned on.

CPU201 judges whether pedestal discharge sensor 42 is ON (S15). When the base discharge sensor 42 is ON (S15: YES), the CPU 201 displays an error message on the display unit 207 (S17), and returns the process to S11. When a pedestal 2 different from the pedestal 2 placed on the cradle 12 is placed on the cradle 13 (see FIG. 12), the pedestal discharge sensor 42 is turned on. In this case, for example, the CPU 201 displays “please take out the wrapped mount” as an error message on the display unit 207 (not shown).

When the pedestal discharge sensor 42 is OFF (S15: NO), the CPU 201 controls the driving unit 212 and drives the motor 222 to start the rotation of the conveyor belts 511 and 512 (S19). The CPU 201 drives the motor 222 so that the

conveyor belts

511 and 512 rotate counterclockwise when viewed from the right side. As the

conveyor belts

511 and 512 rotate, the attachment / detachment unit 61 conveys the base 2 toward the downstream side (see FIGS. 12 and 13). Note that when the

conveyor belts

511 and 512 start to rotate, the operating member 91 at the detection position rotates counterclockwise as viewed from the right side (see FIGS. 12 and 13).

CPU201 performs a packaging process (S21). The CPU 201 controls the driving units 211 to 217 to drive the motors 221 to 227, thereby executing the packaging process shown in FIGS. In addition, when a packaging process is started, the

conveyance belts

511 and 512 are rotating continuously, and the base 2 is conveyed toward the downstream side.

As shown in FIG. 13, the motor 222 rotates the

conveyor belts

511 and 512 counterclockwise when viewed from the right side, whereby the base 2 is conveyed toward the downstream side (arrow 142). The downstream end of the plate-like portion 905 passes over the holding roller 72 after contacting the film 24. The pedestal 2 approaches the movement path 104 from the upstream side while pushing the film 24 to the downstream side, and passes above the heating unit 86. Note that the leading end of the film 24 is sandwiched between a pedestal guide roller 71 and a holding roller 72. When the film 24 is pushed downstream by the pedestal 2, the leading end of the film 24 goes around the lower surface of the plate-like portion 905. The film roll 22 rotates in the feeding direction, and the film 24 is fed from the film roll 22. The feeding direction is a direction in which the film 24 is fed out of the rotation direction of the film roll 22. The feeding direction is the direction indicated by the arrow 161. When the film roll 22 rotates, the motor 227 rotates the film roll 22 in the feeding direction.

When the downstream end of the pedestal 2 moves a predetermined distance downstream from the position above the heating unit 86, the motor 222 stops the rotation of the

conveyor belts

511 and 512. The pedestal 2 stops. The motor 227 (see FIG. 10) further rotates the film roll 22 in the feeding direction. As a result, the film 24 is forcibly fed out from the film roll 22. As the film roll 22 rotates in the feeding direction, the film 24 is loosened. Thereafter, the motor 227 stops rotating.

The motor 223 raises the heating unit 86 to the highest position (arrow 143). The upper surface of the heating unit 86 is close to the conveyance path 103 from below. The downstream end portion of the pedestal 2 has moved a predetermined distance downstream from the upper position of the heating unit 86, and the film 24 has wrapped around the lower surface of the plate-like portion 905. Therefore, the upper surface of the heating unit 86 moved to the uppermost position is in a state in which the leading end portion of the film 24 is sandwiched between the lower surface of the plate-like portion 905.

The heater 871 (see FIG. 9) of the heating unit 86 generates heat. When heated by the heater 871, the leading end of the film 24 is melted and bonded to the lower surface of the base 2. The heater 871 stops the heat generation after a lapse of a predetermined time from the start of heat generation. The predetermined time is a time required for the heater 871 to reach the temperature of the film 24 to the melting point.

As shown in FIG. 14, the motor 223 (see FIG. 10) lowers the heating unit 86 to the lowest position (arrow 144). The motor 226 (see FIG. 10) moves the holding roller 72 to a position separated downward with respect to the base guide roller 71 by swinging the holding portion 78 (arrow 145). The pedestal guide roller 71 and the holding roller 72 release the leading end of the film 24. In addition, the front-end | tip part of the film 24 is the state adhere | attached on the lower surface of the base 2. As shown in FIG.

The motor 222 (see FIG. 3) restarts the rotation of the

conveyor belts

511 and 512 counterclockwise when viewed from the right side, and conveys the pedestal 2 downstream (arrow 146). 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 with the movement of the pedestal 2 while being adhered to the lower surface of the pedestal 2. Note that the motor 227 rotates the film roll 22 in the feeding direction as the pedestal 2 moves downstream. The film 24 is further unwound from the film roll 22 (arrow 162). The film 24 is loose.

The motor 222 continuously rotates the

conveyor belts

511 and 512 counterclockwise as viewed from the right side. The downstream end of the base 2 crosses the intersection position 105 from the upstream side toward the downstream side. The base 2 is further conveyed downstream (arrow 146). As a result, the downstream end of the plate-like portion 905 of the base 2 and the downstream end of the article 3 are brought into contact with the film 24 and bent.

The downstream end of the pedestal 2 is transported to the cradle 13. The upstream end of the pedestal 2 is conveyed to the downstream side of the pedestal guide roller 71. The film 24 is disposed at a position covering the plate-like portion 905 and the upper side of the article 3. After the upstream end of the base 2 crosses the intersection position 105 from the upstream side to the downstream side, the motor 222 stops the rotation of the

conveyor belts

511 and 512. The pedestal 2 stops. The film 24 extending from the film roll 22 contacts the upstream side of the second auxiliary roller 33 and is slightly guided upstream, and contacts the lower side of the second auxiliary roller 33 and extends downstream. The film 24 that has passed through the second auxiliary roller 33 contacts the lower side of the first auxiliary roller 32 and extends further downstream, and reaches the downstream side of the base 2 and the downstream side of the article 3. The guide roller 31 is arranged above the film 24 extending downstream from the first auxiliary roller 32.

As shown in FIG. 15, after the base 2 is stopped, the motor 221 moves the support portion 34 along the movement path 104 from the highest level to the lowest level. As the support portion 34 moves to the lowest position, the guide roller 31 contacts the film 24 from above and guides the film 24 downward along the movement path 104 (arrow 147). The film 24 presses the base 2 and the article 3 from above. The motor 227 rotates the film 24 in the feeding direction until the support portion 34 moves to the lowest position. The film 24 is fed out from the film roll 22 (arrow 163). Accordingly, the film 24 is loose. Thereafter, the motor 227 stops rotating.

When the guide roller 31 guides the film 24 downward, the leading end portion of the film 24 is bonded to the lower surface of the plate-like portion 905 on the downstream side of the attaching / detaching portion 61. For this reason, the first specific load acts on the pedestal 2 by the guide roller 31 guiding the film 24 downward. The first specific load is a load that attempts to rotate the pedestal 2 clockwise around the detachable portion 61 in the right side view (arrow 301). Even when the first specific load is applied to the pedestal 2, the pedestal 2 is supported by the pair of support portions 94 and the extending portions 98 from both sides in the vertical direction. Further, when the pedestal 2 is slightly rotated around the attaching / detaching portion 61, the support portion 94 on the upstream side of the pair of support portions 94 and the lower surface of the plate-like portion 905 come into contact with each other. The extension amount of each of the pair of support portions 94 from the through portions 96 is larger than the extension amount of the extension portion 98. Accordingly, the contact area between the support portion 94 and the plate-like portion 905 is increased. Therefore, the stress acting on the plate-like portion 905 that comes into contact with the support portion 94 is reduced.

As shown in FIG. 16, the guide roller 31 that has moved to the lowest position is in contact with the transport path 103 from below. The film 24 covers the downstream side, the upper side, and the upstream side of the plate-like portion 905 and the article 3. The motor 227 rotates the film roll 22 in the winding direction. The winding direction is the direction opposite to the feeding direction. The winding direction is the direction indicated by arrow 164. As a result, the film 24 fed out from the film roll 22 is forcibly wound around the film roll 22.

The motor 222 (see FIG. 3) rotates the

conveyor belts

511 and 512 clockwise as viewed from the right side. The attaching / detaching portion 61 moves from the downstream side to the upstream side, and conveys the base 2 toward the upstream side (arrow 148). The upstream end of the plate-like portion 905 of the pedestal 2 comes into contact with the film 24 and is pushed upstream. The upstream end of the pedestal 2 crosses the intersection position 105 from the downstream side toward the upstream side, and passes through the upper position of the heating unit 86.

The guide roller 31 moves relatively to the downstream side with respect to the pedestal 2 while in contact with the lower surface of the plate-like portion 905 from below. The film 24 is sandwiched between the lower surface of the plate-like portion 905 and the guide roller 31 and wraps around the lower side of the base 2. When the upstream end face of the pedestal 2 moves a predetermined distance upstream from the upper position of the heating unit 86, the motor 222 (see FIG. 3) stops driving. The pedestal 2 stops.

When the base 2 is transported upstream, the motor 227 rotates the film roll 22 in the winding direction. The loose excess film 24 out of the fed film 24 is taken up by the film roll 22. The pedestal 2 is conveyed upstream, and the upstream end of the plate-like portion 905 pushes the film 24 upstream. Thereby, 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.

When the pedestal 2 pushes the film 24 to the upstream side, the film 24 is sandwiched between the plate-like portion 905 and the guide roller 31 on the upstream side of the attaching / detaching portion 61. For this reason, the second specific load acts on the base 2. The second specific load is a load that attempts to rotate the pedestal 2 counterclockwise (arrow 303) in the right side view with the detachable portion 61 as the center. Even when the second specific load is applied to the pedestal 2, the pedestal 2 is supported from above and below by the pair of support portions 94 and the extending portions 98, so that the pedestal 2 does not come off the detachable portion 61. Further, when the pedestal 2 is slightly rotated around the attaching / detaching portion 61, the support portion 94 on the downstream side of the pair of support portions 94 and the lower surface of the plate-like portion 905 come into contact with each other. The extension amount of each of the pair of support portions 94 from the through portions 96 is larger than the extension amount of the extension portion 98. Accordingly, the contact area between the support portion 94 and the plate-like portion 905 is increased. Therefore, the stress acting on the plate-like portion 905 that comes into contact with the support portion 94 is reduced.

As shown in FIG. 17, the motor 224 (see FIG. 10) moves the stopper 81 upstream (arrow 149). On the upstream side of the stopper 81, the guide roller 31 that has moved to the lowest position is disposed. The rubber of the stopper 81 is close to the guide roller 31. The film 24 wound around the guide roller 31 is sandwiched between the rubber of the stopper 81 and the guide roller 31. The stopper 81 regulates the rotation of the guide roller 31 by pushing the guide roller 31 upstream through the film 24. The motor 227 stops driving and stops the rotation of the film roll 22 in the winding direction.

The motor 225 moves the cutting part 77 from the left side to the right side along the guide rail 74 (see FIG. 8). The blade portion 771 of the cutting portion 77 cuts a portion of the film 24 closer to the film roll 22 than a portion sandwiched between the rubber of the stopper 81 and the guide roller 31. The cutting part 77 separates the part of the film 24 that covers the downstream end of the base 2 and the article 3 from the film roll 22. The leading end of the film 24 fed out from the film roll 22 hangs down below the pedestal guide roller 71 (see FIG. 18).

As shown in FIG. 18, the motor 226 swings the holding portion 78 to move the holding roller 72 to a position close to the pedestal guide roller 71 from the downstream side (arrow 150). The holding roller 72 sandwiches the leading end portion of the film 24 extending from the film roll 22 with the pedestal guide roller 71.

The motor 223 raises the heating unit 86 from the lowest position to the highest position (arrow 151). The upper surface of the heating unit 86 is close to the conveyance path 103 from below. Note that the upstream end face of the plate-like portion 905 has moved a predetermined distance upstream from the position above the heating portion 86. The film 24 guided by the guide roller 31 is in a state of being arranged along the upstream end portion of the lower surface of the plate-like portion 905. Therefore, when the heating unit 86 is raised and disposed at the uppermost position, the upper surface of the heating unit 86 sandwiches the film 24 with the pedestal 2.

The heater 871 of the heating unit 86 generates heat. The heater 871 heats the film 24 sandwiched between the heating unit 86 and the base 2. The film 24 melts. The melted film 24 is bonded to the upstream end of the lower surface of the base 2. The film 24 cut from the film roll 22 is in a state of covering the base 2 and the article 3. The base 2 and the article 3 are packaged. The heater 871 stops generating heat after a predetermined time has elapsed.

As shown in FIG. 19, the motor 223 lowers the heating unit 86 from the highest level to the lowest level (arrow 152). The upper surface of the heating unit 86 is separated from the conveyance path 103. The motor 224 moves the stopper 81 downstream (arrow 153). The rubber of the stopper 81 is separated from the guide roller 31. The guide roller 31 is in a rotatable state. Thereafter, the motor 222 rotates the

conveyor belts

511 and 512 counterclockwise when viewed from the right side. The conveyance to the downstream side of the base 2 is resumed. The packaged pedestal 2 is conveyed downstream toward the cradle 13 and the packaging process is completed.

As shown in FIG. 11, the CPU 201 determines whether or not the operation detection sensor 43 is ON (S23). When the operation detection sensor 43 is OFF (S23: NO), the CPU 201 enters a standby state. When the detachable part 61 has not reached the end position, the operating member 92 (see FIG. 19) has not reached the detection position. For this reason, the operation detection sensor 43 is OFF. The

conveyor belts

511 and 512 continue to rotate and continue to convey downstream of the pedestal 2.

When the operation detection sensor 43 is ON (S23: YES), the CPU 201 stops the rotation of the

conveyor belts

511 and 512 by controlling the driving unit 212 and stopping the driving of the motor 222 (S25). As shown in FIG. 20, when the attaching / detaching portion 61 moves to the end position, the operation member 92 reaches the detection position, and the operation detection sensor 43 is turned on. The

conveyor belts

511 and 512 stop rotating. The conveyance of the base 2 is finished. In this case, the packaged pedestal 2 is conveyed to the cradle 13 and the pedestal discharge sensor 42 (see FIG. 2) is turned on.

The detection position is in the vicinity of the pulley 53A. Therefore, even if the portion of the conveyor belt 511 between the lower side of the pulley 53A and the lower side of the pulley 53B swings up and down, the swinging amount of the operating member 92 at the detection position is small. Therefore, even if the operation member 92 swings, the operation member 92 does not easily come out of the detectable region of the operation detection sensor 43. Therefore, the packaging device 1 can suppress a problem that the operation detection sensor 43 is not turned on even though the operation member 92 has moved to the detection position.

When the attachment / detachment unit 61 moves to the end position, the attachment / detachment unit 62 moves to the start position. The user can attach the subsequent pedestal 2 to the detachable portion 62 at the start position after removing the pedestal 2 conveyed to the cradle 13 from the detachable portion 61 (arrow 165). When the user places the subsequent article 3 on the subsequent pedestal 2 and inputs a packaging start instruction to the operation unit 206, the CPU 201 executes the main process again. Even if the user inputs a packaging start instruction to the operation unit 206 before removing the packaged pedestal 2 from the attachment / detachment unit 61, the pedestal discharge sensor 42 is ON (S15: YES). 511 and 512 do not rotate.

Similarly, even if the user inputs a packaging start instruction to the operation unit 206 before placing the subsequent pedestal 2 on the pedestal 12, the pedestal mounting sensor 41 is OFF (S11: NO). The

conveyor belts

511 and 512 do not rotate.

When the CPU 201 executes the second main process (S11 to S25), the

conveyor belts

511 and 512 end the attachment / detachment portion 62 at the start position via the packaging position where the article 3 and the subsequent base 2 are packaged. Move to position. Thereby, the subsequent article 3 and the subsequent pedestal 2 are packaged. When the operation member 93 has moved to the detection position, the second main process ends. When the second main process is completed, the user can attach another pedestal 2 to the attachment / detachment unit 63 moved to the start position (not shown).

When the CPU 201 repeatedly executes the main process, the packaging apparatus 1 sequentially moves the attaching / detaching units 61 to 63 from the start position to the end position via the packaging position. Thereby, the packaging apparatus 1 can wrap the pedestal 2 and the article 3 that are sequentially inserted successively.

As described above, the packaging apparatus 1 wraps the pedestal 2 and the article 3 with the film 24 by the CPU 201 executing the main process. When the CPU 201 finishes the first main process, the attachment / detachment unit 61 moves to the end position, and the attachment / detachment unit 62 moves to the start position. The packaging device 1 is in a state in which the subsequent article 3 can be packaged without returning the attaching / detaching portion 61 to the start position. Therefore, the packaging device 1 can efficiently and continuously wrap the articles 3 that are sequentially inserted. If the base 2 is not attached to any one of the attaching / detaching parts 61 to 63 at the starting position (S11: YES), the packaging process is not started. When the packaged pedestal 2 is not removed from the cradle 13 (S15: YES), the subsequent pedestal 2 is not packaged. As described above, the packaging device 1 can efficiently and continuously wrap the articles 3 that are sequentially inserted, and after the packaged article 3 is taken out from the cradle 13, the packaging operation of the subsequent article 3 is performed. You can start reliably.

Each time the operation detection sensor 43 that detects any one of the operation members 91 to 93 moved to the detection position is turned ON, the

conveyance belts

511 and 512 stop rotating. The operation detection sensor 43 is turned on at a position where any two of the attachment / detachment portions 61 to 63 are arranged at the start position and the end position, respectively. That is, the

conveyance belts

511 and 512 stop rotating at positions where any two of the attaching / detaching portions 61 to 63 are disposed at the start position and the end position, respectively. Since the rotation stop positions of the

conveyor belts

511 and 512 are stabilized, the packaging device 1 can continuously and stably execute the articles 3 that are sequentially inserted.

The detection position is in the vicinity of the pulley 53A. Even when the portion of the conveyor belt 512 between the lower side of the pulley 53A and the lower side of the pulley 53B swings up and down, the amount of swing of the operating members 91 to 93 at the detection position is small. As a result, the operation members 91 to 93 at the detection position are unlikely to be detached from the detectable region of the operation detection sensor 43. The packaging device 1 can suppress a problem that the operation detection sensor 43 is not turned on even though the operation members 91 to 93 are in the detection position. Therefore, the packaging device 1 can stabilize the position where the

conveyance belts

511 and 512 stop rotating. Therefore, the packaging device 1 can stabilize the position where the packaged pedestal 2 stops and the position where the subsequent pedestal 2 is placed on the cradle 12.

The operating members 91 to 93 are formed separately from the attaching / detaching portions 61 to 63. The actuating members 91 to 93 are at positions different from the attaching / detaching portions 61 to 63 and at any position on the outer surface of the transport belt 512 as long as they are spaced apart from each other along the rotation direction of the transport belt 512. Can be placed. The detection positions of the operating members 91 to 93 can be set flexibly.

The pedestal 2 conveyed by the attaching / detaching portion 61 is supported from both sides in the vertical direction by the pair of support portions 94 and the extending portion 98. The pair of support portions 94 extend from the penetration portion 96 in the first direction and the second direction, respectively. Similarly, the extending portion 98 extends from the penetration portion 96 in the first direction and the second direction. Thereby, in the case where the pedestal 2 and the article 3 are packaged, the pedestal 2 does not come off the detachable portion 61 even if any one of the first specific load and the second specific load acts on the pedestal 2. Further, the extension amount of each of the pair of support portions 94 from the through portions 96 is larger than the extension amount of the extension portion 98. Thereby, it is a case where the base 2 is slightly rotated around the attaching / detaching portion 61 by the first specific load or the second specific load, and one support portion 94 of the pair of support portions 94 and the plate-like portion 905. The contact area with the lower surface of is large. The stress acting on the plate-like portion 905 that comes into contact with the support portion 94 is reduced. Therefore, the packaging device 1 can hardly deform the base 2.

The cradle 12 is an example of the “mounting table” in the present invention. Any two of the detachable portions 61 to 63 are examples of the “first detachable portion” and the “second detachable portion” of the present invention. The pedestal mounting sensor 41 is an example of the “first detection means” in the present invention. The motor 222 is an example of the “driving means” in the present invention. The base discharge sensor 42 is an example of the “second detection means” in the present invention. Any two of the actuating members 91 to 93 are examples of the “first actuating member” and the “second actuating member” of the present invention. The operation detection sensor 43 is an example of the “third detection means” in the present invention. The

pulleys

52A and 53A are examples of the “drive pulley” of the present invention. The

pulleys

52B and 53B are examples of the “driven pulley” of the present invention. The CPU 201 that executes S21 is an example of the “packaging unit” in the present invention. The CPU 201 that executes S11, S15, S19, S23, and S25 is an example of the “control unit” in the present invention. The predetermined interval is an example of the “predetermined length” in the present invention. The detection position is an example of the “predetermined position” in the present invention.

The present invention is not limited to the above embodiment, and various modifications are possible. The conveyance mechanism 50 may include two attachment / detachment portions on each of the

conveyance belts

511 and 512, or may include four or more attachment / detachment portions. Either one of the

conveyor belts

511 and 512 may not be provided.

The detachable parts 61 to 63 do not have to be formed in the same shape. For example, only the detachable part 61 may include a plate-like member extending in the rotation direction of the

conveyor belts

511 and 512 instead of the pair of support parts 94. In this case, the plate member is fixed to the outer side surfaces of the

conveyor belts

511 and 512. The penetrating part 96 is connected to the side surface of the plate-like member opposite to the conveying

belts

511 and 512.

After determining whether or not the pedestal mounting sensor 41 is ON (S11), the CPU 201 determines whether or not the pedestal discharge sensor 42 is ON (S15). Instead, the pedestal discharge sensor 42 is ON. After determining whether or not the pedestal mounting sensor 41 is ON, it may be determined.

The attaching / detaching portions 61 to 63 and the operating members 91 to 93 may not be separately provided on the conveyor belt 512. Hereinafter, with reference to FIG. 21, the packaging apparatus 11 which is a modification of the packaging apparatus 1 is demonstrated. The packaging device 11 includes a transport mechanism 250 instead of the transport mechanism 50. In the following description, only the configuration of the transport mechanism 250 that is different from the transport mechanism 50 will be described.

Attachment / detachment portions 261 to 263 are fixed to the outer surfaces of the

conveyance belts

511 and 512 of the conveyance mechanism 250 instead of the attachment / detachment portions 61 to 63 (see FIG. 3). Each of the attaching / detaching portions 261 to 263 includes a pair of support portions 94, a penetrating portion 96, an extending portion 98, and an operating portion 291. The operating part 291 protrudes from the extending part 98 toward the side opposite to the penetrating part 96. An operation detection sensor 243 is provided below the conveyor belt 512. The operation detection sensor 243 is a non-contact type sensor. The operation detection sensor 243 detects the operation unit 291 provided in any one of the attachment / detachment units 261 to 263 at the retracted position. That is, the detection position of the operating part 291 and the retracted position of the attaching / detaching parts 261 to 263 coincide.

When the motor 222 (see FIG. 3) stops driving when the operation detection sensor 243 is turned on, any two of the attachment / detachment portions 261 to 263 of the

conveyor belts

511 and 512 are at the start position and the end position, respectively. You can stop where it is placed.

The detachable portions 261 to 263 function as members that are detected by the operation detection sensor 243 in addition to functioning as members that allow the base 2 to be attached. Since the number of components provided on the transport belt 512 is reduced, the packaging device 11 can simplify the mechanism of the transport mechanism 250. In this modification, any two of the attaching / detaching portions 261 to 263 are examples of the “first attaching / detaching portion” and the “second attaching / detaching portion” of the present invention. The operation parts 291 provided in any two of the attachment / detachment parts 261 to 263 are examples of the “first operation member” and the “second operation member” in the present invention.

Claims

A packaging device provided with packaging means capable of packaging a base and an article placed on the base with a film,
A mounting table on which the pedestal before packaging can be mounted;
First detecting means capable of detecting the pedestal before being packaged placed on the mounting table;
A first detachable portion and a second detachable portion to which the pedestal can be attached to each;
A conveyor belt that is rotatably provided, and in which the first attaching / detaching portion and the second attaching / detaching portion are arranged along a rotation direction, and is placed on the mounting table, and the first attaching / detaching portion and the second attaching portion. A transport belt capable of transporting the pedestal attached to any of the detachable portions;
By rotating the transport belt, the pedestal is moved by the wrapping means from the start position where the transport of the pedestal before the first detachable portion and the second detachable portion are sequentially wrapped is started. Drive means for moving to the end position, which is the position where the transport of the packaged pedestal is completed, via the packaging position, which is the position to be packaged;
Second detection means capable of detecting the packaged pedestal attached to the first attachment / detachment portion or the second attachment / detachment portion at the end position;
Control means for controlling the rotation of the conveyor belt by the drive means,
The first attaching / detaching part and the second attaching / detaching part are arranged at a distance from each other by a predetermined length that is a length in the rotation direction from the start position to the end position,
The control means is configured such that when the packaged pedestal is not detected by the second detection means and the pedestal before being packaged is detected by the first detection means, the drive means performs the A packaging device that allows rotation of a conveyor belt to be started.
A first actuating member and a second actuating member disposed on the conveyor belt at a predetermined distance from each other along the rotation direction;
Third detecting means capable of detecting whether one of the first operating member and the second operating member is at a predetermined position, wherein the predetermined position is at each of the start position and the end position, When the first attachment / detachment portion and the second attachment / detachment portion reach, the first detection member and a third detection means that is a position where either of the second operation member reaches,
The control means stops rotation of the conveyor belt by the driving means when the third detecting means detects that one of the first operating member and the second operating member is in the predetermined position. The packaging device according to claim 1.
A driving pulley that is rotated by the power of the driving means;
A driven pulley provided apart from the drive pulley,
The conveyor belt is stretched over the drive pulley and the driven pulley,
The packaging device according to claim 2, wherein the predetermined position is a position in the vicinity of the driving pulley or the driven pulley.
The packaging device according to claim 2 or 3, wherein the first operating member and the second operating member are provided in the first attaching / detaching portion and the second attaching / detaching portion, respectively.
The first detachable part and the second detachable part are each
A support portion fixed to the conveyor belt, extending along the rotational direction, and capable of supporting the pedestal;
A penetrating portion extending from the support portion in a direction away from the conveyor belt and penetrating the base supported by the support portion;
It connects with the penetration part from the opposite side to the support part, extends from the penetration part in each of a first direction parallel to the rotation direction and a second direction opposite to the first direction, and the penetration part penetrates. An extension portion capable of supporting the pedestal from the side opposite to the support portion;
The support portion extends in the first direction and the second direction from the penetrating portion, and each extending amount in the first direction and the second direction from the penetrating portion is the extension The packaging device according to any one of claims 1 to 4, wherein the packaging device is larger than each extending amount in the first direction and the second direction from the penetrating portion.