JP2015074494A - Packaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging device having excellent convenience in which replacement of a film roll or maintenance can be performed from any of both sides of the packaging device by a user.SOLUTION: The packaging device includes a film supply part for supplying a film for packaging an object to be packaged to a conveyor for conveying the object to be packaged from the upstream side to the downstream side. The film supply part is arranged under the conveyor and comprises a roll support body for supporting a film roll having the wound film so as to rotate around a shaft center. The conveyor is supported in the downstream side in the conveyance direction of the object to be packaged by a support member arranged in the direction orthogonal to the conveyance direction, and both sides under the conveyor are opened.

Description

  The present invention relates to a packaging device for packaging an object to be packaged in a cylindrically formed film.

  As a packaging apparatus for packaging an article to be packaged, for example, the technique of Patent Document 1 below has been proposed. The packaging apparatus of patent document 1 is provided with the film supply part for supplying a film toward the seal | sticker part which mounts the to-be packaged object in a film individually. The film supply unit includes a roll support that supports a film roll around which the film is wound so as to be rotatable about its axis. And replacement | exchange and maintenance of a film roll are the structures which a user performs from the one side (one side in the direction orthogonal to a conveyance direction) of a packaging apparatus.

Japanese Patent Laid-Open No. 06-263110

  By the way, the packaging apparatus as described above may be installed side by side in a factory that individually wraps an article to be packaged, and that is why there is a limit to expanding the site of the factory. is there. In that case, the installation interval of the packaging apparatus must be narrowed. However, the conventional packaging apparatus has a configuration in which the user can perform replacement and maintenance of the film roll only from one side of the packaging apparatus, which is not convenient. Further, even when only one packaging device is used, the convenience of the film roll is poor if the film roll can be replaced or maintained only from one side of the packaging device.

  In view of such circumstances, an object of the present invention is to provide a convenient packaging device by which a user can perform replacement and maintenance of a film roll from either side of the packaging device.

  The packaging apparatus of the present invention includes a film supply unit that supplies a film for wrapping an object to be packaged to a conveyance conveyor that conveys the object to be packaged from the upstream side to the downstream side, and the film supply unit is below the conveyance conveyor. And a roll support that rotatably supports the film roll around which the film is wound around the axis, and the conveyance conveyor has a direction perpendicular to the conveyance direction on the downstream side in the conveyance direction of the article to be packaged. It is characterized by being supported by a support member.

  As in the above configuration, the conveyance conveyor is supported by the support member in the direction orthogonal to the conveyance direction on the downstream side in the conveyance direction of the packaged object, so that both sides of the film supply unit in the direction orthogonal to the conveyance direction are Since it can be opened, it is easy to replace and maintain the film roll.

  In the packaging device of the present invention, the roll support is provided in a pair, the roll support is configured such that the separation distance in the direction along the axis is adjustable, and a handle for adjusting the separation distance between the roll supports is provided. A configuration provided on both sides orthogonal to the transport direction can be employed.

  As in the above configuration, the handle for adjusting the separation distance between the roll supports is provided on both sides orthogonal to the transport direction, so that the film supply unit can be operated in the direction orthogonal to the transport direction by operating the handle. The distance between the roll supports can be adjusted from both sides of the roll.

  In the packaging apparatus of this invention, the film supply part can employ | adopt the structure made rotatable around the rotation center axis along a perpendicular direction. Even if the film supply unit is rotatable about the rotation center axis along the vertical direction as in this configuration, both sides of the film supply unit in the direction perpendicular to the transport direction can be opened. There is nothing to obstruct this even if it is rotated around the rotation axis.

  According to the packaging apparatus which concerns on this invention, a conveyance conveyor is orthogonal to the conveyance direction of a film supply part by being supported by the supporting member of the direction orthogonal to a conveyance direction in the conveyance direction downstream of a to-be-packaged item. Since both sides of the direction can be opened, it is easy to replace and maintain the film roll, which is convenient.

In the packaging apparatus showing one Embodiment of this invention, it is the whole side view of the state which made the conveyance conveyor the horizontal attitude | position. In the packaging apparatus, it is the whole side view of the state made into the attitude | position which made the conveyance conveyor incline. It is a whole top view of the packaging device. It is the front view (figure from the downstream) which mainly represented the reference | standard support member and the main axis | shaft of the packaging apparatus. It is a top view showing the attachment state of the vertical seal apparatus with respect to the reference | standard support member (attachment arm) of the packaging apparatus. It is the side view which mainly represented the support part of the packaging apparatus. It is a side view showing the whole structure of the film holder of the packaging apparatus. It is a top view showing the whole structure of the film holder of the packaging apparatus. It is a rear view (figure from an upstream side) showing the film support part and link mechanism part of the packaging apparatus. It is the top view which represented the state which rotated the film support part of the packaging apparatus with the virtual line. It is a side view of the vertical sealing apparatus of the packaging apparatus. It is a top view of the vertical seal apparatus of the packaging apparatus. It is a side view of the horizontal sealing apparatus of the packaging apparatus. It is a front view of the horizontal sealing apparatus of the packaging apparatus. It is a top view of the horizontal sealing apparatus of the packaging apparatus. It is a side view of the horizontal sealer part of the horizontal sealing device of the packaging device, (a) is a side view moved in the direction in which the film heating units approach, (b) is a side view moved in the direction in which the film heating units are separated from each other FIG.

  Hereinafter, an embodiment of a packaging device according to the present invention will be described. One of the characteristic configurations of this packaging device is its overall configuration. That is, the conveyance conveyor that conveys the packaging object from the upstream side to the downstream side, the film adjustment roller that adjusts the supply position of the long film supplied toward the conveyance conveyor, and the conveyance conveyor that is supplied Houma for forming a film into a cylindrical shape, a vertical sealing device for welding both edges of the film made into a tubular shape by the homa to form a tubular film, and an article to be packaged supplied to the inside of the tubular film A horizontal sealing device that welds the film in the width direction at predetermined intervals so that each film is packaged individually, and the film adjusting roller and the foamer are upstream of the transport conveyor in the transport direction. The vertical sealing device and the horizontal sealing device are arranged on the downstream side in the conveying direction with respect to the film adjusting roller and the houma, and the conveying conveyor, the film adjusting roller, the houma, The sealing device and the lateral sealing device are arranged on the downstream side and the lower side in the transport direction with respect to the transport conveyor, and are rotatable about the shaft center of the shaft body along the direction parallel to the width direction of the film. .

  Another feature of the packaging device is the configuration of a lateral seal device. That is, it is a horizontal sealing device for forming a package in which a package is individually packaged by forming a horizontal seal on the film by sandwiching and heating a cylindrical film in a width direction intersecting the transport direction. And a pair of horizontal sealers that sandwich the film so as to face the film, and each horizontal sealer is heated with the leading end sandwiching the film across the width direction. The at least one horizontal sealer includes a pair of approaching / separating members configured to be approachable and separable in the film transport direction on the upstream side and the downstream side in the film transport direction of the film heating unit, The pair of approaching / separating members each include a guide surface that supports a guided surface formed at the base end portion of the film heating unit, and the pair of approaching / separating members approach / separate, Irumu heating unit is moved guided in the height direction.

  Furthermore, as another feature, the packaging apparatus includes a film supply unit that supplies a film for packaging the packaged object to a transport conveyor that conveys the packaged object from the upstream side to the downstream side, and the film supply unit includes: A roll support that is disposed below the conveyor and supports a film roll on which a film is wound so as to be rotatable around an axis, and the conveyor is arranged in the conveying direction on the downstream side of the package in the conveying direction. It is supported by the support member in the orthogonal direction.

  Hereinafter, a specific configuration of the packaging device will be described with reference to the drawings. In the present embodiment, the upstream side in the transport direction (hereinafter simply referred to as the upstream side) is the side on which the articles to be packaged are supplied to the transport conveyor, and the downstream side in the transport direction (hereinafter simply referred to as the downstream side). The side to be packaged is sent from the conveyor. The front-rear direction is a direction orthogonal to the transport direction.

  As shown in FIGS. 1 to 3, the packaging device 1 includes a mounting table 2, a film holder 3, a guide roller unit 4, a film adjusting unit 5, a houma 6, a transport conveyor 7, and a vertical sealing device 8. And a lateral seal device 9.

  The film holder 3 is a part that automatically leads out the film 10 by applying tension to the film 10 from a film roll 11 around which a packaging film (hereinafter simply referred to as “film”) 10 is wound. . The guide roller portion 4 is a portion that guides the film 10 led out from the film roll 11 toward the houma 6 via the film adjustment portion 5. The film adjustment unit 5 is a part that adjusts the supply position of the film 10 supplied to the Houma 6. The Houma 6 is a part that forms the film 10 supplied toward the conveyor 7 in a cylindrical shape.

  The conveyance conveyor 7 is a part which mounts a package and conveys it from the upstream side to the downstream side. The vertical sealing device 8 is a part that completes the film 10 into a long cylindrical shape by sealing the end side of the film 10 formed into a cylindrical shape by the Houma 6. The lateral sealing device 9 is provided in the direction perpendicular to the longitudinal direction of the film 10, that is, in the width direction of the film 10, in order to individually package the packaged articles supplied into the film 10 for each packaged object. It is a part to be welded with a predetermined interval.

  In these components, the film adjustment unit 5 and the foamer 6 are disposed on the upstream side with respect to the transport conveyor 7, and the vertical seal device 8 and the horizontal seal device 9 are disposed on the downstream side with respect to the transport conveyor 7. The transport conveyor 7, the film adjusting unit 5, the foamer 6, the vertical sealing device 8, and the horizontal sealing device 9 are made into one whole assembly as a whole (can be handled integrally). Further, the entire assembly includes a reference support member 12 that supports (removably fixes) the downstream side portion of the conveyor 7, the downstream side portion of the vertical sealing device 8, and the upstream side portion of the horizontal sealing device 9. Yes. The reference support member 12 is formed in a box shape along the front-rear direction.

  And this whole assembly is arrange | positioned along the direction (the front-back direction and the width direction of the film 10) which is arrange | positioned in the downstream and downward side with respect to the conveyance conveyor 7, and orthogonal to a conveyance direction. It is possible to rotate around 13 axes. Note that the film holder 3 and the guide roller unit 4 do not rotate even if the entire assembly rotates about the axis of the shaft body 13, and remains supported by the mounting table 2 described later.

  In the middle of the shaft body 13 in the longitudinal direction (substantially the center in the longitudinal direction), the worm wheel 14 is fixed to the shaft body 13 so as to be able to rotate (turn) around the axis of the shaft body 13. The worm wheel 14 rotates about the axis, so that the entire assembly can be rotated about the axis of the shaft body 13 together with the worm wheel 14.

  A worm gear 15 that rotates the worm wheel 14 about its axis is provided. Although not shown, a drive motor for rotating the worm gear 15 around the longitudinal axis is provided. The worm gear 15 is disposed at the upper end portion of the gear shaft 16 erected in the vertical direction on the mounting table 2, and meshes with the worm wheel 14 on the downstream side. As an example, the rotation amount of the worm wheel 14 is rotated or stopped while the transport surface 7a of the transport conveyor 7 is rotated by 45 ° in the clockwise direction in FIG. 1 from the horizontal orientation (see FIG. 2). It is configured to be possible. This is controlled by the drive amount of the drive motor.

  In the above configuration, the worm wheel 14 is rotated around the axis by the rotation of the worm gear 15, and the entire assembly is rotated around the axis of the shaft body 13 together with the rotation of the worm wheel 14. That is, in the packaging device 1 of the present embodiment, the transport conveyor 7 can be used such that the downstream side is inclined downward. Of course, the conveyor 7 can be used in a horizontal posture.

  By using the conveyor 7 so that the downstream side is inclined downward, a piece of the packaged object generated depending on the type of the packaged object falls along the inclination of the conveyor 7 in the film 10 and is below. By reaching the upper part of the article to be packaged, since it is not in the sealing position in the horizontal sealing device 9, a decrease in the accuracy of sealing in the horizontal sealing device 9 is suppressed.

  In addition, the worm wheel 15 is rotated around the axis by the rotation of the worm gear 15, and the entire assembly is rotated around the axis along with the rotation of the worm wheel 14. A function is exhibited and it is controlled that conveyance conveyor 7 returns to a horizontal posture by gravity. Furthermore, since the worm wheel 14 is arranged at the approximate center in the longitudinal direction of the shaft body 13, there is an advantage that it is difficult for an operator to interfere with the work.

  Here, the mounting table 2 will be described. As shown in FIG. 3, the mounting table 2 includes rectangular frame members 17 and 17 assembled in four directions, a bottom base 18 attached between the frame members 17 and 17, and a support portion 19 (FIG. 1, 2). The other component part which comprises the packaging apparatus 1 in this embodiment is mounted in the mounting base 2 directly or indirectly.

  As shown in FIG. 4, the support portion 19 includes a pair of support legs 20 erected on the downstream upper surface of the bottom base 18 in the front-rear direction, and a support beam passed between the upper portions of the support legs 20 in the front-rear direction. 21. The support portion 19 further includes a connection bracket 22 formed integrally with the support beam 21 at a substantially central portion in the front-rear direction of the support beam 21.

The shaft body 13 includes a holding shaft portion 23 fixed to the upper surface of each support leg 20, and a main shaft 24 that is rotatably fitted to a facing portion in the front-rear direction in each holding shaft portion 23. The worm wheel 14 is attached to the main shaft 24 (see FIG. 4).
The connecting bracket 22 is provided so as to protrude upstream from the main shaft 24, and the reference support member 12 is integrally provided on the upper portion of the connecting bracket 22.

  As shown in FIGS. 4 to 6, the reference support member 12 includes an upstream side wall 25 on the upstream side, and the upstream side wall 25 includes a pair of front and rear mounting arms 26 to which the vertical seal device 8 is mounted. The mounting arm 26 is formed in an upper part of the upstream side wall 25 so as to protrude toward the upstream side. The reference support member 12 further includes a downstream side wall 27 on the downstream side to which the lateral seal device 9 is attached. In addition, a conveyor mounting arm 28 is provided at a lower portion on the upstream side of the upstream side wall 25 and extends toward the upstream side.

  Here, the film holder 3 will be described. As shown in FIGS. 7 to 10, the film holder 3 is disposed closer to the upstream side of the mounting table 2. The film holder 3 includes a rotating table 30, a support table 31, a film support unit 32, and a holder unit 33.

The turntable 30 is supported so as to be turnable in a horizontal plane via a bearing around a turn center axis 34 erected in a vertical direction on the mounting table 2 with the transport direction as a longitudinal direction.
The support 31 is mounted horizontally on the turntable 30 via a rail 35 in the front-rear direction, with the transport direction being the longitudinal direction.

  According to this configuration, the turntable 30 and the support stand 31 are rotatable in a horizontal plane around the turn center axis 34, and the support stand 31 moves along the rail 35 with respect to the turntable 30. it can. For example, the rotation angle (rotation range) of the rotation table 30 and the support table 31 is set to 90 ° in the front-rear direction in a plan view with respect to the direction along the conveyance direction (see FIG. 10). Although not shown, a stopper for limiting the rotation angle of the rotation table 30 and the support table 31 is provided.

  The film support portion 32 is a portion that supports the film roll 11 and is disposed on the upstream side of the support base 31. The film support portion 32 can support the film roll 11 on both sides in the axial direction, and supports a pair of roll supports 36 that support the film roll 11 so as to be rotatable around the axis, and the roll supports 36 in the front-rear direction. A means for approaching and separating in the direction, a roll receiver 37 for supporting the film roll 11 below, and a means for raising and lowering the roll receiver 37 are provided.

  The roll support 36 is formed in a truncated cone shape in plan view (side view), and sandwiches the central portion of the central shaft cylinder of the film roll 11 from the front-rear direction. The roll supports 36 are at the same height. As means for enabling the roll supports 36 to approach and separate from each other, a screw shaft 39 whose longitudinal direction is the front-rear direction in which the holding body 38 holding the roll support 36 is screwed in a non-rotating direction, and the screw shaft 39 are rotated. Handle 40 and a rail 41 that fits in the lower part of the holding body 38 and guides the holding body 38 in the front-rear direction as the screw shaft 39 rotates.

  As means for raising and lowering the roll receiver 37, an elevator platform 42 that supports the roll receiver 37, an elevator lever 43 for operating the elevator platform 42, a link mechanism unit 44 that connects the elevator lever 43 and the elevator platform 42, And a guide support portion 46 for guiding the guided rod 45 suspended below the roll receiver 37 so as to be movable up and down. The film support portion 32 includes a roller 46A that guides the film 10 led out from the film roll 11 to the guide roller portion 4 side.

  In the above configuration, when the handle 40 is rotated in one direction, the screw shaft 39 is rotated in one direction, the holding body 38 is guided by the rail 41, and the roll supports 36 are separated in the front-rear direction. By separating the roll supports 36 from each other than the length in the axial direction of the film roll 11, the film roll 11 can be held between the roll supports 36.

  Further, by lifting the elevating lever 43, the elevating table 42 is lowered via the link mechanism 44 (the guided rod 45 is guided by the guide support unit 46), and the film roll 11 is in a state where the elevating table 42 is lowered. Is placed on the roll receiver 37 and the elevating lever 43 is pushed down, whereby the roll receiver 37 (elevating platform 42) is raised and fixed via the link mechanism 44. And when the raising position of the roll receiver 37 is set corresponding to the diameter of the film roll 11, when the roll receiver 37 is raised, the center of the roll support 36 is the central axis of the replaced film roll 11. It will be in the state of substantially coinciding with the center of the cylinder.

  After this, when the handle 40 is rotated in the other direction, the screw shaft 39 rotates in the other direction, the holding body 38 is guided by the rail 41, and the roll supports 36 approach each other in the front-rear direction. The front end portion of the support 36 is fitted to the central shaft cylinder of the film roll 11 from the front and rear directions to sandwich the roll support 36 in the front and rear direction. Thereafter, the elevating lever 43 is pulled up again, the roll receiver 37 is lowered, and the roll receiver 37 is detached from the film roll 11. In this way, the film 10 can be led out (drawn) from the film roll 11.

  As shown in FIGS. 7 and 8, the holder portion 33 includes a rail 48, a traveling platform 49, a pressing portion 50, and a pressing cylinder 51. A pair of rails 48 are provided, and are laid parallel to each other along the transport direction on the upper surface of the support base 31. The traveling platform 49 is configured to be guided by the rail 48 so as to be reciprocally movable in the transport direction (upstream and downstream). An operation column wall 53 to be described later is erected on the traveling platform 49. The pressing unit 50 is configured to contact the outer peripheral surface of the film roll 11 and rotate the film roll 11 about its axis.

  The pressing unit 50 includes a pair of upper and lower feeding rollers 54, a single feeding tension roller 55, a feeding belt 56, a tension spring 57, and a feeding drive motor 58. The feeding roller 54 can be rotated around an axis along the front-rear direction at the top of the traveling platform 49. The feeding tension roller 55 is supported by the traveling platform 49 and is arranged on the downstream side of the feeding roller 54 in parallel with the feeding roller 54. The feeding tension roller 55 is supported by the traveling platform 49 via a guide portion 59 that allows the feeding tension roller 55 to reciprocate along the traveling platform 49 along the conveying direction. The guide portion 59 is provided on the traveling platform 49.

  The feeding roller 54 and the feeding tension roller 55 have substantially the same axial length. The feeding belt 56 is an endless type and has substantially the same axial length as the feeding roller 54 and the feeding tension roller 55. It is wound around the feeding roller 54 and the feeding tension roller 55. The feeding belt 56 is formed of an elastic body such as synthetic rubber. The tension spring 57 urges the feeding tension roller 55 downstream in the guide portion 59. In other words, the feeding belt 56 is stretched while being wound around the feeding roller 54 and the feeding tension roller 55 by the elasticity of the tension spring 57, and the region between the feeding rollers 54 is formed on the outer peripheral surface of the film roll 11. It is the part that contacts.

  The feeding drive motor 58 has its output shaft 60 disposed at one side in the front-rear direction of the traveling platform 49, and a driving belt 62 is wound around a pulley 61 attached to the output shaft 60 and one feeding roller 54. The pressing cylinder 51 is placed on the downstream side of the support base 31 via an attachment member 63, and is configured to be able to expand and contract along the transport direction. The tip of the rod 64 of the pressing cylinder 51 is connected to the downstream side surface of the column wall 53.

  According to this configuration, the area between the feeding rollers 54 in the feeding belt 56 contacts the outer peripheral surface of the film roll 11 by extending the pressing cylinder 51. In this case, the feeding belt 56 stretched by the elasticity of the tension spring 57 is bent so as to protrude toward the downstream side when the region between the feeding rollers 54 contacts the outer peripheral surface of the film roll 11, and the tension spring 57. The area between the feeding rollers 54 is urged toward the outer peripheral surface of the film roll 11 by the elasticity of the film roll 11. When the feeding drive motor 58 is driven (a constant rotational speed), the driving force is transmitted to the one feeding roller 54 via the driving belt 62, and the feeding belt 56 is driven at a constant speed by the rotation of the one feeding roller 54. The film 10 is fed out at a constant speed from the film roll 11 in a state where the feed belt 56 is in contact with the outer peripheral surface of the film roll 11.

  Further, as shown in FIG. 10, the turntable 30 and the support stand 31 are configured to be able to turn in a horizontal plane, and the support stand 31 has a film support portion 32 and the holder portion 33 placed on the support stand 31. Has been. And the lower part of the conveyance conveyor 7 is open | released by the front-back direction. For this reason, the exchange of the film roll 11 or the maintenance of the apparatus can be performed from any of the front and rear sides of the transport conveyor 7, and the convenience is excellent.

  Here, the guide roller unit 4 will be described. As shown in FIGS. 1 and 2, the guide roller unit 4 includes a roller support frame 65 erected on the upstream side of the mounting table 2, and guide rollers 66 disposed in a pair of upper and lower portions on the roller support frame 65. Is provided. The guide roller 66 is supported by a roller support frame 65 so as to be rotatable about an axial center along the front-rear direction. The film 10 led out from the film roll 11 is wound around the lower guide roller 66 upward from below, and is further wound around the downstream side of the outer peripheral surface of the upper guide roller 66 so as to face upward. Derived.

  Here, the film adjustment unit 5 will be described. The film adjustment unit 5 includes an adjustment roller 67 provided in pairs along the conveyance direction on which the film 10 led out from the guide roller unit 4 is wound, a support 68 that supports the adjustment roller, and a support 68 And a support adjuster 69 that adjusts the position in the transport direction.

  The adjustment roller 67 is disposed in parallel with the guide roller 66. Of the adjusting roller 67, the downstream roller is wound with the film 10 from the downstream side to the upper side and led to the upstream roller, and the upstream roller is wound with the film 10 from the lower side to the upper side. The film 10 is led out toward the Houma 6. Both adjusting rollers 67 are rotatably supported by a support body 68 arranged in a pair at the front and rear. A rack 70 is attached to the support body 68 as a support body adjustment section 69 with the direction along the transport direction as the longitudinal direction.

  In the middle of the rack 70 in the longitudinal direction, a holding member 71 for attaching the rack 70 and holding the rack 70 is attached. A handle shaft 72 is passed between the holding members 71, and an operation handle 73 is attached to the front and rear ends of the handle shaft 72. The holding member 71 is fixed to the upstream side of the conveyor frame 74 of the transport conveyor 7 via an attachment bracket 75.

  According to this configuration, the rack 70 can be moved in the conveyance direction with respect to the fixed holding member 71 regardless of which operation handle 73 is rotated, and the adjustment roller 67 together with the support body 68 as the rack 70 moves. Is adjusted along the conveying direction.

  Here, the conveyor 7 will be described. The transport conveyor 7 is detachably attached to the upper side of the conveyor mounting arm 28 via an attachment member 76, and the transport conveyor 7 is an endless type having a suction hole on the transport surface of the article to be packaged. is there. The downstream end of the conveyor 7 is installed on the conveyor mounting arm 28 so as to reach the horizontal sealing device 9.

  Here, the vertical sealing device 8 will be described with reference to FIGS. 11 and 12. The vertical sealing device 8 includes a guide plate member 77 disposed to face the transport surface 7 a of the transport conveyor 7, a vertical sealer 78, and a pair of front and rear upstream pinch rollers disposed on the upstream side of the vertical sealer 78. 79, a pair of front and rear downstream pinch rollers 80 disposed on the downstream side of the vertical sealer 78, a drive unit 81 of the upstream pinch roller 79 and the downstream pinch roller 80, a guide plate member 77, a vertical sealer 78, an upstream An elevating device 82 capable of elevating and lowering the drive part of the drive part 81 of the side pinch roller 79 and the downstream side pinch roller 80 is provided as an assembly (unitized).

  The vertical sealer 78, the upstream pinch roller 79, the downstream pinch roller 80, and the drive unit 81 are located above the guide plate member 77 and are configured to move up and down by operating the lifting device 82. A passage 83 that can pass through the edge of the film 10 is formed at the center in the front-rear direction of the guide plate member 77.

  The lifting device 82 includes a horizontal screw shaft 84 along the front-rear direction, a handle 85 for rotating the horizontal screw shaft 84, a vertical screw shaft 86 connected to the guide plate member 77 along the vertical direction, and a horizontal screw shaft 84. And a bevel gear 87 that transmits the rotation of the vertical screw shaft 86 to move the vertical screw shaft 86 up and down. The handle 85 is attached to both the front and rear sides of the horizontal screw shaft 84. The horizontal screw shaft 84 is housed in the outer box body 88, and the outer box body 88 is detachably attached to the mounting arm 26 with a mounting screw 89.

  The upstream pinch roller 79 and the downstream pinch roller 80 are configured to be switchable between an approaching posture for holding the film 10 and a releasing posture for releasing the holding of the film 10, respectively. 79, an operation lever 90 for switching the attitude of the downstream pinch roller 80 is provided. The operation lever 90 is disposed on each of the front and rear sides as a mechanism unit that switches the postures of the upstream pinch roller 79 and the downstream pinch roller 80.

  In such a vertical sealing device 8, the edge portion of the film 10 that has entered the passage 83 from the upstream side is sent to the downstream side while being sandwiched between the upstream pinch roller 79 and the downstream pinch roller 80, and is The pinch roller 79 and the downstream pinch roller 80 are sandwiched and sealed by the vertical sealer 78. Further, by rotating the handle 85 of the elevating device 82, the vertical screw shaft 86 moves up and down while rotating, and the vertical screw shaft 86 is connected to the guide plate member 77. The pinch roller 79, the downstream pinch roller 80, the vertical sealer 78, and the drive unit 81 are moved up and down integrally.

  Thereby, the height of the vertical seal device 8 can be adjusted according to the thickness of the article to be packaged. When the film 10 is sealed, the upstream side pinch roller 79 and the downstream side pinch roller 80 are set in an approaching posture by operating the operation lever 90, and when the film 10 is released, the operation lever 90 is operated. The upstream pinch roller 79 and the downstream pinch roller 80 are set to the release posture.

  The handle 85 is attached to both the front and rear sides of the horizontal screw shaft 84. The operation lever 90 is disposed on each of the front and rear sides as a mechanism unit that switches the postures of the upstream pinch roller 79 and the downstream pinch roller 80. With this configuration, the operation of the lifting device 82 and the switching of the posture of each pinch roller can be performed from either the front or the rear.

  As shown in FIG. 4, the lateral seal device 9 is detachably mounted on the downstream side surface of the downstream side wall 27 of the reference support member 12 by a mounting screw 91. As shown in FIGS. 13 to 15, the lateral seal device 9 includes a frame body 92 that is detachably mounted by a mounting screw 91. The lateral seal device 9 includes a pair of upper and lower support shaft members 93 that are rotatably supported by the frame body 92 in the front-rear direction and that have an axial center along the width direction of the film 10. A synchronization gear 94 for synchronizing and rotating the support shaft member 93 around the axis is attached to the outside of the frame body 92, and the lateral seal device 9 includes a motor for rotating the synchronization gear 94.

  Each support shaft member 93 includes horizontal sealers 95 and 96 (see FIGS. 14 and 16) that face the film 10 and sandwich the film 10 in the vertical direction. Each of the horizontal sealers 95 and 96 is set to a length that substantially extends in the width direction of the film 10. The front end portions of the horizontal sealers 95 and 96 serve as film heating portions 97 and 98 that heat the film 10 while sandwiching the film 10 in the front-rear direction (width direction). Both of the horizontal sealers 95 and 96 are provided with a pair of approaching / separating members 100 and 101 configured to be able to approach and separate in the film transporting direction on the upstream side and the downstream side in the film transporting direction of the film heating units 97 and 98. I have.

  A part of the outer peripheral surface of each support shaft member 93 is formed with an adjustment surface spaced apart in the front-rear direction and having a predetermined front-rear width. In this case, the adjustment surface is formed in two portions on the part of the outer peripheral surface of the support shaft member 93 so as to be separated in the front-rear direction. These two positions are positions corresponding to both ends in the front-rear direction of the film heating portions 97 and 98. The adjustment surface includes first planes 93 a and 93 b that are formed on both sides in the conveyance direction of the film 10 and extend along the vertical direction. The first planes 93a and 93b are arranged to face each other in the transport direction in the support shaft member 93.

  A part of the outer peripheral surface of each support shaft member 93 is formed with a second plane 93c between the first planes 93a and 93b and in a direction perpendicular to the first planes 93a and 93b. A part of the outer peripheral surface of each support shaft member 93 is formed with a third plane 93d parallel to the second plane 93c at a portion facing the second plane 93c.

  The approaching / separating members 100 and 101 include fitting pieces 102 and 103 that are fitted to the second plane 93c and the third plane 93d from the outside, respectively. One of the fitting pieces 102 and 103 is a support piece that supports the base end portions of the film heating portions 97 and 98. The approaching / separating members 100 and 101 include continuous pieces 104 that are integrally formed so that the ends of the fitting pieces 102 and 103 are continuous. The approaching / separating members 100 and 101 are formed in a U shape whose open sides face each other.

  The continuous piece 104 includes an adjusting unit that moves the approaching / separating members 100, 101 in the same direction so as to move the approaching / separating members 100, 101 close to or away from each other, or maintain the separation distance of the approaching / separating members 100, 101. ing. In other words, the adjustment unit moves the film heating units 97 and 98 in the same diameter direction, that is, the height direction of the support shaft member 93 and the pair of approaching and separating screws 105 and 106 and the approaching and separating members 100 and 101 in the same direction, The separation width holding screws 107 and 108 are adjusted so as to be moved in the radial direction orthogonal to the one radial direction, that is, in the conveying direction. The approaching and separating screws 105 and 106 and the separating width holding screws 107 and 108 are inserted through the continuous piece 104.

  Furthermore, the approaching / separating screws 105 and 106 are inserted into the continuous piece 104 from both sides (each side), and the tip side is screwed to the first flat surfaces 93a and 93b. The separation width holding screws 107 and 108 are screwed into and inserted into the continuous piece 104, and the front end surfaces thereof are not screwed into the first flat surfaces 93a and 93b and can only be brought into contact with each other.

  A guided surface 110 is formed at the base ends of the film heating units 97 and 98. The guided surface 110 is formed on an inclined surface that is closer to the axis toward the axial center side of the support shaft member 93. A guide surface 111 that contacts the guided surface 110 is formed on the support piece. The guide surface 111 is formed on an inclined surface that is closer to the axis toward the axis of the support shaft member 93.

  In the horizontal sealing device 9, the film heating portions 97 and 98 are moved and guided in the height direction by moving the pair of approaching / separating members 100 and 101 closer to and away from each other. By moving the pair of approaching and separating members 100 and 101 in the same direction, the film heating units 97 and 98 move in the transport direction.

  Specifically, when the approaching / separating members 100, 101 are moved closer to each other by rotating (moving) the approaching / separating screws 105, 106 toward each other, the guide surface 111 presses the guided surface 110 to heat the film. The parts 97 and 98 are adjusted in the height direction, and the film heating parts 97 and 98 move in the approaching direction (see FIG. 16A). On the contrary, when the approaching / separating members 100, 101 are separated by rotating (moving) the approaching / separating screws 105, 106 in the direction of separating, the guide surface 111 guides the guided surface 110, and the film heating unit 97 and 98 are adjusted in the height direction, and the film heating parts 97 and 98 move in a direction away from each other (see FIG. 16B).

  When performing such adjustment, the separation width holding screws 107 and 108 may be removed from the continuous piece 104, or loosened sufficiently so as not to interfere with the approaching and separating members 100 and 101. It may be left. When the vertical positions of the film heating portions 97 and 98 are specified, the film heating portions 97 and 98 are securely fixed by tightening the separation width holding screws 107 and 108 so as to contact the first flat surfaces 93a and 93b. Is done.

  In order to set the transport direction position of the film heating units 97 and 98, at least one of the separation width holding screws 107 and 108 is loosened (separated from the first flat surfaces 93a and 93b), and the loose separation width is retained. The approaching / separating members 100 and 101 can be moved in the direction opposite to the direction where the screws 107 and 108 are provided. Accordingly, the approaching / separating members 100 and 101 are moved in the transport direction to the position to be adjusted, and then the loosened separation width holding screws 107 and 108 are tightened so that their tips are brought into contact with the first planes 93a and 93b. . By doing in this way, the film heating parts 97 and 98 can be fixed to a required position.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention. The same applies to the specific configuration of each part. For example, in the above-described embodiment, the conveyance co-conveyor 7 has been illustrated in a posture in which the downstream side is directed downward. However, the conveyance co-conveyor 7 may be configured in a posture in which the upstream side is directed downward.

  DESCRIPTION OF SYMBOLS 1 ... Packaging apparatus, 3 ... Film holder, 4 ... Guide roller part, 5 ... Film adjustment part, 6 ... Houma, 7 ... Conveyor, 8 ... Vertical sealing apparatus, 9 ... Horizontal sealing apparatus, 10 ... Film, 12 ... Standard | standard Support member, 13 ... shaft body, 17, 17 ... frame member, 19 ... support portion, 20 ... support leg, 25 ... upstream side wall, 26 ... mounting arm, 27 ... downstream side wall, 28 ... conveyor mounting arm, 30 ... turning 32, film support, 33 ... holder, 36 ... roll support, 37 ... roll receiver, 38 ... holder, 40 ... handle, 43 ... lift lever, 45 ... guided rod, 46 ... guide support, 53 ... Strut wall, 55 ... Tension roller, 57 ... Tension spring, 67 ... Adjustment roller, 68 ... Support body, 69 ... Support body adjustment part, 71 ... Holding member, 73 ... Operation handle, 74 ... Conveyor frame, 78 Vertical sealer, 79 ... upstream pinch roller, 80 ... downstream pinch roller, 85 ... handle, 90 ... operating lever, 93 ... support shaft member, 93a, 93b ... first plane, 93c ... second plane, 93d ... third Flat, 95, 96 ... Horizontal sealer, 97, 98 ... Film heating section, 100, 101 ... Approaching / separating member, 102, 103 ... Fitting piece, 104 ... Continuous piece, 110 ... Guided surface, 111 ... Guide surface

Claims (3)

A film supply unit for supplying a film for packaging an object to be packaged to a conveying conveyor that conveys the object to be packaged from the upstream side to the downstream side,
The film supply unit includes a roll support that is disposed below the conveyor and supports a film roll around which the film is wound so as to be rotatable about an axis.
The conveying apparatus is supported by the supporting member of the direction orthogonal to a conveyance direction in the conveyance direction downstream of a to-be-packaged item, The packaging apparatus characterized by the above-mentioned.   A pair of roll supports is provided, and the roll supports are configured such that the separation distance in the direction along the axis is adjustable, and handles for adjusting the separation distance between the roll supports are provided on both sides orthogonal to the transport direction. The packaging device according to claim 1 provided.   The packaging apparatus according to claim 1, wherein the film supply unit is rotatable about a rotation center axis along the vertical direction.

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